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Get real. Underpayment is better than no payment. And it may mean that
there are a few individuals left to pass on their expertise when, in
thirty years, folk finally recognize what they've done by killing off
the field that answers the first question of biology ("What is it?").
Charley O'Kelly
Mad Phycologist/Protistologist
Article 837 of bionet.plants:
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Path: samba!concert!uvaarpa!murdoch!usenet
From: abl9y@faraday.clas.Virginia.EDU (Andrew B. Lederman)
Subject: Seed germination for tropical plants
Message-ID: <1993Jan25.141952.1094@murdoch.acc.Virginia.EDU>
Sender: usenet@murdoch.acc.Virginia.EDU
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I recently acquired some tropical seeds (dwarf banana, bird of paradise,
passion flower) and need some advice on how to get them started. The problem
is that they require germination tempereatures between 80 - 90 degrees.
How can I provide adequate temperatures and humidity etc. in my cold apartment?
I figure I could make some sort of mini greenhouse with an aquarium, but I don't
know the best way to keep the temperature up.
Thanks,
Andrew
abl9y@virginia.edu
Article 838 of bionet.plants:
Xref: samba rec.gardens:13128 bionet.plants:838
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From: nanders@plains.NoDak.edu (Noel Anderson)
Subject: Re: Seed germination for tropical plants
Sender: usenet@ns1.nodak.edu (News login)
Message-ID: <C1F859.J3p@ns1.nodak.edu>
Date: Mon, 25 Jan 1993 17:48:44 GMT
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In article <1993Jan25.141952.1094@murdoch.acc.Virginia.EDU> abl9y@faraday.clas.Virginia.EDU (Andrew B. Lederman) writes:
>I recently acquired some tropical seeds (dwarf banana, bird of paradise,
>passion flower) and need some advice on how to get them started. The problem
>is that they require germination tempereatures between 80 - 90 degrees.
>
>How can I provide adequate temperatures and humidity etc. in my cold apartment?
>I figure I could make some sort of mini greenhouse with an aquarium, but I don't
>know the best way to keep the temperature up.
You can purchase heating pads from garden seed companies. A cheaper alternative
is hog heating pads from farm suppliers, but that may not be an option in
your area. I just payed $50 for two 36"*12" pads from Kane Manufacturing in
Des Moines, IA. You also need a way to vary the temperature such as with
a dimmer switch for lights (another ~$15).
Many people just set seed trays on the pads. This spring I plan to put my
trays in aluminum water pans which then sit on the mats. I'm hoping for
better heat distribution and humidity with that scheme.
--
Noel W. Anderson nanders@plains.nodak.edu (Internet)
Asst Prof, Computer Engineering "I speak for myself, not NDSU"
EE Dept, North Dakota State University nanders@plains (BITNET)
Article 839 of bionet.plants:
Xref: samba rec.gardens:13132 bionet.plants:839
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From: smallory@cudnvr.denver.colorado.edu
Newsgroups: rec.gardens,bionet.plants
Subject: Re: Seed germination for tropical plants
Message-ID: <1993Jan25.123921.1@cudnvr.denver.colorado.edu>
Date: 25 Jan 93 12:32:21 GMT
References: <1993Jan25.141952.1094@murdoch.acc.Virginia.EDU>
Sender: netnews@copper.denver.colorado.edu
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Distribution: na
Lines: 20
In article <1993Jan25.141952.1094@murdoch.acc.Virginia.EDU>, abl9y@faraday.clas.Virginia.EDU (Andrew B. Lederman) writes:
> I recently acquired some tropical seeds (dwarf banana, bird of paradise,
> passion flower) and need some advice on how to get them started. The problem
> is that they require germination tempereatures between 80 - 90 degrees.
>
> How can I provide adequate temperatures and humidity etc. in my cold apartment?
> I figure I could make some sort of mini greenhouse with an aquarium, but I don't
> know the best way to keep the temperature up.
For supplying heat, the cheapest way to go may be to go to a Salvation Army or
Value Village, or other place that sells used items very cheaply, and buy a
used waterbed heater with its thermostat. Check in the store to make certain
that it actually warm up when plugged in, however. This is can be set under a
used shower curtain with soil on top of it to make a germinating/rooting bed
for a very low price.
This doesn't provide humidity, however, and I would be interested in learning
of an inexpesive way to maintain it.
Sean Mallory (smallory@cudnvr.denver.colorado.edu)
University of Colorado, Denver
Article 840 of bionet.plants:
Newsgroups: bionet.plants
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From: wessorh@teal.csn.org (Rick H. Wesson)
Subject: Request for jobs in plant identification
Message-ID: <C1FDsD.DpF@csn.org>
Sender: news@csn.org (news)
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Date: Mon, 25 Jan 1993 19:50:37 GMT
Lines: 7
would like to know if there are any jobs dealing with plant identification
I would like to learn as much as I could, pay need only be enough for survival, Feild work a must. If any of you know of any programs where a college grad could be useful to someone in plant identification please drop me a note.
many thanks,
-Rick
Article 841 of bionet.plants:
Path: samba!concert!gatech!destroyer!news.iastate.edu!iscsvax.uni.edu!klier
From: klier@iscsvax.uni.edu
Newsgroups: bionet.plants
Subject: Re: Taxonomists: charging into oblivion
Message-ID: <1993Jan25.210646.10167@iscsvax.uni.edu>
Date: 25 Jan 93 21:06:43 -0600
References: <1993Jan25.000208.15251@massey.ac.nz>
Followup-To: bionet.plants
Organization: University of Northern Iowa
Lines: 24
In article <1993Jan25.000208.15251@massey.ac.nz>, COKelly@massey.ac.nz (C.J. O'Kelly) writes:
>
> Re: Charging fees for taxonomic services.
>
> Dammit be careful out there!!!
>
> Some years ago, the Botany Division of New Zealand's Division of
> Scientific and Industrial Research (DSIR) came to a similar conclusion,
> that the day of free taxonomic IDs was at an end. Hence they began
> charging.
>
> From that day these guys were dead. ...
Sorry to hear about NZ taxonomy... especially for a place with
so many fascinating species.
I'm the curator of an underfunded, underappreciated, and sometimes
overused, small herbarium. I do IDs gratis, but I've been known
to drop hints to people who DO have $$$ that the herbarium could
use some label paper, or a new flora or ...
And yes, the people who need ID's take the hint about 50% of the time.
Kay Klier Biology Dept UNI
Article 843 of bionet.plants:
Path: samba!concert!uvaarpa!darwin.sura.net!spool.mu.edu!olivea!biosci!Acd.Tusk.Edu!DUMENYO
From: DUMENYO@Acd.Tusk.Edu
Newsgroups: bionet.plants
Subject: AGROBACTERIUM OVERGROWTH
Message-ID: <01GTYYBQA0LU0001QL@Acd.Tusk.Edu>
Date: 26 Jan 93 15:22:12 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Organization: Tuskegee University
Lines: 20
DEAR NETWORKER,
I HAVE A PROBLEM WITH AGROBACTERIUM OVERGROWTH AFTER THE CO-CULTIVATION.
MOST OF THE ANTIBIOTICS I USE SEEM TO BE INEFFECTIVE IN CONTROLING THE
BACTERIA. DOES ANYBODY OUT THERE HAVE ANY SUGGESTIONS OF IMPROVED PROTOCOLS
OR ANTIBIOTICS TO EMPLOY IN KEEPING THE BACTERIA UNDER CONTROL? I
WILL ALSO APPRECIATE NAMES OF SUGGESTED COMPANIES WHICH CARRY
THESE CHEMICALS. PLEASE REPLY TO MY E-MAIL, FAX OR PHONE.
C. KORSI DUMENYO
PHONE 205-727-8552
FAX 205-727-8067
E-MAIL IN%"DUMENYO@TUSK.EDU"
Article 844 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!spool.mu.edu!nigel.msen.com!emory!sol.ctr.columbia.edu!The-Star.honeywell.com!umn.edu!msus1.msus.edu!krypton.mankato.msus.edu!lebowitz
Newsgroups: bionet.plants
Subject: Physcometrilla patens
Message-ID: <1993Jan27.135533.2217@msus1.msus.edu>
From: lebowitz@krypton.mankato.msus.edu (Robert J. Lebowitz)
Date: 27 Jan 93 13:55:32 -0600
Distribution: bionet
Organization: Mankato State University
Nntp-Posting-Host: krypton.mankato.msus.edu
Lines: 11
Is anyone in the US aware of a source of wild and cultivated stocks of
the moss Physcometrilla patens. I am specifically interested in stocks
which are suitable for genetic analysis purposes. I understand that
some stocks are easier to obtain protoplasts from than others.
Rob Lebowitz
lebowitz@krypton.mankato.msus.edu
--
Robert J. Lebowitz Internet lebowitz@krypton.mankato.msus.edu
Mankato State University VOX (507) 389-2540
Mankato MN 56002-8400
Article 845 of bionet.plants:
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From: joanie@tigerrr.Eng.Sun.COM (Joan LeFevre)
Newsgroups: bionet.plants
Subject: need orchid help
Message-ID: <lme67bINNs32@exodus.Eng.Sun.COM>
Date: 27 Jan 93 23:21:15 GMT
Reply-To: joanie@tigerrr.Eng.Sun.COM
Organization: Sun Microsystems, Inc.
Lines: 16
NNTP-Posting-Host: tigerrr
I'm hoping someone out there can help me ...
I have a mini orchid plant (I've been told it's called a "Moth Orchid"), and I need
some info on caring for it.
The original shoot that bloomed last summer has long since dropped the flowers, and
at the end, new leaves have grown to look like a new plant. Is there a way I can
cut the new plant off and root it, or something?
Any help is appreciated - I've really grown attached to the plant and would love
to start a new one!
Reply to joanie.lefevre@EBB.Eng.Sun.COM
Joanie :-))
Article 846 of bionet.plants:
Path: samba!concert!gatech!uflorida!pine.circa.ufl.edu!stinger
From: stinger@pine.circa.ufl.edu (GUALA)
Newsgroups: bionet.plants
Subject: RE: Taxonomists charging into oblivion
Message-ID: <38426@uflorida.cis.ufl.edu>
Date: 30 Jan 93 00:21:55 GMT
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Thank you C.J. O'Kelly for putting up a post that demands
a response and hence, will keep this group active.
Your point is well taken and it may be that in New Zealand
there is no need for IDs. That would be the implied meaning
of what you are saying. However, in the US where I am, there
is clearly a need and a need that many are willing to pay for.
Taxonomy is greatly underfunded IMHO but I don't believe that it
is due to the demand for compensation for IDs. I consider ID
work to be busywork that I do for pay or as a special favor
to a friend and the number of requests for me to do it for
pay is definitely increasing, not decreasing. To call oneself
a taxonomist and do only ID work (a situation that I see often
in university situations) is about the same as calling oneself
a taxonomist and sweeping the floor or collecting garbage (which
is what most of those requesting IDs do {just a side gripe}).
It is not advancing research or knowledge at all. I suspect that
the best course is to hire a technician to do ID work and let
the researchers compete for their own funds because the funding
that comes to many programs "because they do IDs" is a hollow
victory. Stinger
Article 847 of bionet.plants:
Newsgroups: bionet.plants
Path: samba!concert!rock!taco!csemail.cropsci.ncsu.edu!samodena
From: samodena@csemail.cropsci.ncsu.edu (S. A. Modena)
Subject: Re: Taxonomists charging into oblivion
Message-ID: <1993Jan30.203238.26288@ncsu.edu>
Sender: news@ncsu.edu (USENET News System)
Organization: Crop Science Dept., NCSU, Raleigh, NC 27695-7620
References: <38426@uflorida.cis.ufl.edu>
Date: Sat, 30 Jan 1993 20:32:38 GMT
Lines: 69
In article <38426@uflorida.cis.ufl.edu> stinger@pine.circa.ufl.edu writes:
>Thank you C.J. O'Kelly for putting up a post that demands
>a response and hence, will keep this group active.
>Your point is well taken and it may be that in New Zealand
>there is no need for IDs. That would be the implied meaning
>of what you are saying. However, in the US where I am, there
>is clearly a need and a need that many are willing to pay for.
>Taxonomy is greatly underfunded IMHO but I don't believe that it
>is due to the demand for compensation for IDs.
I've noticed that University departments have been "consolidating" the
traditional *descriptive* disciplines with the new _adventure_ skills (like
various aspects of mol. bio., advanced modelling, etc.)...and why not?
One year ago, I attended an Extension Service and Computers Conference in
Florida at which a gent from the UK detailed the switch over to a
"recovery of costs" mode for their equivalent of the Cooperative Extension
Service here. Of greatest interest to me, was the _fact_ that thought
there were pre-existing for-fee ag consultancies, the government's
charging a free seemed to *stimulate* a better offering of services by all
concerned, *promoted* a clarefication in everyones' minds (especially the ag
customer) who best offer what, and the net result was that the total
expendiatures for ag info consultancy has increased several fold in the
last five years with NO ONE suffering a loss in gross income (and the
government agencies being now able to recover 50% of costs on their way to
attaining the goal of 100% recovery)!
Whether in the U.S.A., New Zealand or Timbuktu, any good or service that
has a VALUE will have to seek it's marrket clearing price (the point at
which demand just meets supply--or vice versa)...unless that is a legal or
regulatory sanction that forbids that mechanism.
The implications are clear: if the service that one offers for "free" sees a
precipitous drop in demand when switched to a cost recovery scheme, then
that service is worth *only* the time and effort, but not the cash, of its
previous for-free customers.
In my opinion (and it is an opinion), the real complaint from New Zealand
is: how uncomfortable it is that the true value of my "static" service has
been revealed to the public....with the subsequent withdrawal of public
subsidy. I can recall (I am 50 y.o.) a blacksmith who still operated in my
small New England town as late as 1955. For sure, there are still
"smithies" operating here and there, but that is now a "niche" service
that is priced as such (expensive) for those who use the "luxuray" of a
horse, rather than mechanical horsepower. I worked on a kibuttz in Israeli
(years ago) that recalled that the last draft horses were phased out (in
favor of tractors) about 1960. Yes, there were horse on the kibuttz...but
for pleasure riding.
So the question for New Zealand is: how are you going to revolutionize the
content, focus and delivery of your ID service, such that it will be
appreciated in the public eye and command at least a living wage? :^)
Steve
---
+------------------------------------------------------------------+
| In person: Steve Modena AB4EL |
| On phone: (919) 515-5328 |
| At e-mail: nmodena@unity.ncsu.edu |
| samodena@csemail.cropsci.ncsu.edu |
| [ either email address is read each day ] |
| By snail: Crop Sci Dept, Box 7620, NCSU, Raleigh, NC 27695 |
+------------------------------------------------------------------+
Lighten UP! It's just a computer doing that to you. (c)
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Article 848 of bionet.plants:
Path: samba!concert!rutgers!stanford.edu!agate!spool.mu.edu!yale.edu!ira.uka.de!math.fu-berlin.de!news.netmbx.de!Germany.EU.net!mcsun!uknet!daresbury!news
From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: Taxonomists charging into oblivion
Message-ID: <1993Jan31.031015.21141@gserv1.dl.ac.uk>
Date: 31 Jan 93 03:09:01 GMT
Sender: list-admin@daresbury.ac.uk
Reply-To: ajt@rri.sari.ac.uk
Distribution: bionet
Organization: Rowett Research Institute
Lines: 21
Original-To: plantbio@uk.ac.daresbury
In article <93130011352.MIN-LLBAa15394.bionet-news@uk.ac.daresbury> you wrote:
: Thank you C.J. O'Kelly for putting up a post that demands
: a response and hence, will keep this group active.
: [...]
Yes, things have been a little quiet on bionet.plants recently ...
I've been busy upgrading the operating system on the workstations we
use for image analysis, and completing a couple of papers before
embarking on the next part of the project. I'd be interested to hear
from anyone who knows about lignin histology (other than acid
phlorogucinol) and, in particular, any information about 'iodine green'
which I believe is used to stain for lignin (but I admit I've never
used it).
Tony.
--
Dr. A.J.Travis, | Tony Travis
Rowett Research Institute, | JANET: <ajt@uk.ac.sari.rri>
Greenburn Road, Bucksburn, | other: <ajt@rri.sari.ac.uk>
Aberdeen, AB2 9SB. UK. | phone: 0224-712751
Article 849 of bionet.plants:
Path: samba!concert!gatech!rpi!usc!cs.utexas.edu!tamsun.tamu.edu!zeus.tamu.edu!jlw2582
From: jlw2582@zeus.tamu.edu (WHITSON, JOHN LEE)
Newsgroups: bionet.plants
Subject: re: need help with orchids
Date: 31 Jan 1993 17:47 CST
Organization: Texas A&M University, Academic Computing Services
Lines: 11
Distribution: world
Message-ID: <31JAN199317474531@zeus.tamu.edu>
NNTP-Posting-Host: zeus.tamu.edu
News-Software: VAX/VMS VNEWS 1.41
What you've described is a keiki. It is indeed a small clone of your
original Phalaenopsis orchid.
See if you can find a copy of ORTHO books' _All_About_Orchids_. Around
here, they are available at WalMart, but you might be able to find them
at your neighborhood garden store. It'll give you pointers on how to
pot up your new dependant.
Congrats.
j.
Article 847 of bionet.plants:
Newsgroups: bionet.plants
Path: samba!concert!rock!taco!csemail.cropsci.ncsu.edu!samodena
From: samodena@csemail.cropsci.ncsu.edu (S. A. Modena)
Subject: Re: Taxonomists charging into oblivion
Message-ID: <1993Jan30.203238.26288@ncsu.edu>
Sender: news@ncsu.edu (USENET News System)
Organization: Crop Science Dept., NCSU, Raleigh, NC 27695-7620
References: <38426@uflorida.cis.ufl.edu>
Date: Sat, 30 Jan 1993 20:32:38 GMT
Lines: 69
In article <38426@uflorida.cis.ufl.edu> stinger@pine.circa.ufl.edu writes:
>Thank you C.J. O'Kelly for putting up a post that demands
>a response and hence, will keep this group active.
>Your point is well taken and it may be that in New Zealand
>there is no need for IDs. That would be the implied meaning
>of what you are saying. However, in the US where I am, there
>is clearly a need and a need that many are willing to pay for.
>Taxonomy is greatly underfunded IMHO but I don't believe that it
>is due to the demand for compensation for IDs.
I've noticed that University departments have been "consolidating" the
traditional *descriptive* disciplines with the new _adventure_ skills (like
various aspects of mol. bio., advanced modelling, etc.)...and why not?
One year ago, I attended an Extension Service and Computers Conference in
Florida at which a gent from the UK detailed the switch over to a
"recovery of costs" mode for their equivalent of the Cooperative Extension
Service here. Of greatest interest to me, was the _fact_ that thought
there were pre-existing for-fee ag consultancies, the government's
charging a free seemed to *stimulate* a better offering of services by all
concerned, *promoted* a clarefication in everyones' minds (especially the ag
customer) who best offer what, and the net result was that the total
expendiatures for ag info consultancy has increased several fold in the
last five years with NO ONE suffering a loss in gross income (and the
government agencies being now able to recover 50% of costs on their way to
attaining the goal of 100% recovery)!
Whether in the U.S.A., New Zealand or Timbuktu, any good or service that
has a VALUE will have to seek it's marrket clearing price (the point at
which demand just meets supply--or vice versa)...unless that is a legal or
regulatory sanction that forbids that mechanism.
The implications are clear: if the service that one offers for "free" sees a
precipitous drop in demand when switched to a cost recovery scheme, then
that service is worth *only* the time and effort, but not the cash, of its
previous for-free customers.
In my opinion (and it is an opinion), the real complaint from New Zealand
is: how uncomfortable it is that the true value of my "static" service has
been revealed to the public....with the subsequent withdrawal of public
subsidy. I can recall (I am 50 y.o.) a blacksmith who still operated in my
small New England town as late as 1955. For sure, there are still
"smithies" operating here and there, but that is now a "niche" service
that is priced as such (expensive) for those who use the "luxuray" of a
horse, rather than mechanical horsepower. I worked on a kibuttz in Israeli
(years ago) that recalled that the last draft horses were phased out (in
favor of tractors) about 1960. Yes, there were horse on the kibuttz...but
for pleasure riding.
So the question for New Zealand is: how are you going to revolutionize the
content, focus and delivery of your ID service, such that it will be
appreciated in the public eye and command at least a living wage? :^)
Steve
---
+------------------------------------------------------------------+
| In person: Steve Modena AB4EL |
| On phone: (919) 515-5328 |
| At e-mail: nmodena@unity.ncsu.edu |
| samodena@csemail.cropsci.ncsu.edu |
| [ either email address is read each day ] |
| By snail: Crop Sci Dept, Box 7620, NCSU, Raleigh, NC 27695 |
+------------------------------------------------------------------+
Lighten UP! It's just a computer doing that to you. (c)
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Article 848 of bionet.plants:
Path: samba!concert!rutgers!stanford.edu!agate!spool.mu.edu!yale.edu!ira.uka.de!math.fu-berlin.de!news.netmbx.de!Germany.EU.net!mcsun!uknet!daresbury!news
From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: Taxonomists charging into oblivion
Message-ID: <1993Jan31.031015.21141@gserv1.dl.ac.uk>
Date: 31 Jan 93 03:09:01 GMT
Sender: list-admin@daresbury.ac.uk
Reply-To: ajt@rri.sari.ac.uk
Distribution: bionet
Organization: Rowett Research Institute
Lines: 21
Original-To: plantbio@uk.ac.daresbury
In article <93130011352.MIN-LLBAa15394.bionet-news@uk.ac.daresbury> you wrote:
: Thank you C.J. O'Kelly for putting up a post that demands
: a response and hence, will keep this group active.
: [...]
Yes, things have been a little quiet on bionet.plants recently ...
I've been busy upgrading the operating system on the workstations we
use for image analysis, and completing a couple of papers before
embarking on the next part of the project. I'd be interested to hear
from anyone who knows about lignin histology (other than acid
phlorogucinol) and, in particular, any information about 'iodine green'
which I believe is used to stain for lignin (but I admit I've never
used it).
Tony.
--
Dr. A.J.Travis, | Tony Travis
Rowett Research Institute, | JANET: <ajt@uk.ac.sari.rri>
Greenburn Road, Bucksburn, | other: <ajt@rri.sari.ac.uk>
Aberdeen, AB2 9SB. UK. | phone: 0224-712751
Article 850 of bionet.plants:
Path: samba!concert!uvaarpa!darwin.sura.net!zaphod.mps.ohio-state.edu!uwm.edu!biosci!daresbury!daresbury!news
From: avigolan@bgumail.bgu.ac.il
Newsgroups: bionet.plants
Subject: Plant Bio Seq
Message-ID: <1993Feb1.110346.2388@gserv1.dl.ac.uk>
Date: 1 Feb 93 16:33:19 GMT
Sender: list-admin@daresbury.ac.uk
Distribution: bionet
Lines: 8
Original-To: plantbio@uk.ac.daresbury
Dear Sir/Madam,
I am interested in amino acid sequences of plant proteins for comparison
with a partial sequence of a protein I have purified and partially
sequenced from a developing bud of Pistacia vera. My thanks in advance.
Avi Golan.
-----------------------------------------------------------------------
Avi Golan
Article 851 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!netsys!pagesat!olivea!charnel!sifon!monod!francis
From: francis@monod.Biol.McGill.CA (Francis Ouellette)
Newsgroups: bionet.plants
Subject: Re: Plant Bio Seq
Message-ID: <francis.728570980@monod>
Date: 1 Feb 93 12:49:40 GMT
References: <1993Feb1.110346.2388@gserv1.dl.ac.uk>
Sender: news@sifon.cc.mcgill.ca
Distribution: bionet
Organization: McGill University
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Nntp-Posting-Host: monod.biol.mcgill.ca
avigolan@bgumail.bgu.ac.il writes:
>Dear Sir/Madam,
>I am interested in amino acid sequences of plant proteins for comparison
>with a partial sequence of a protein I have purified and partially
>sequenced from a developing bud of Pistacia vera. My thanks in advance.
>Avi Golan.
Dear Avi,
If you want to compare your sequence to the database, the best thing is
to use the BLAST server at NCBI.
To get started, and to find out how to format your query, send a "help"
message (nothing in the subject field) to :
blast@ncbi.nlm.nih.gov
This will return to you (in a few minutes) a document on how to use this
mail server.
regards,
francis
--
| B.F. Francis Ouellette
| manager, yeast chromosome I & XVI sequencing project
| dept of biology, McGill university, Montreal, Qc, Canada
| francis@monod.biol.mcgill.ca
Article 852 of bionet.plants:
Newsgroups: bionet.plants
Path: samba!concert!rock!stanford.edu!ames!saimiri.primate.wisc.edu!zaphod.mps.ohio-state.edu!uunet.ca!canrem!dosgate!dosgate![tony.hall@canrem.com]
From: "tony hall" <tony.hall@canrem.com>
Subject: pine tree info - wanted
Message-ID: <1993Jan31.4376.493@dosgate>
Reply-To: "tony hall" <tony.hall@canrem.com>
Organization: Canada Remote Systems
Distribution: bionet
Date: 31 Jan 93 12:44:50 EST
Lines: 17
Does anyone know how to take care of a Pine tree indoor?
Light requirements
Water
pruning.
Help needed soon.
See Ya,
--
Canada Remote Systems - Toronto, Ontario
World's Largest PCBOARD System - 416-629-7000/629-7044
Article 853 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!spool.mu.edu!olivea!biosci!daresbury!daresbury!news
From: avigolan@bgumail.bgu.ac.il
Newsgroups: bionet.plants
Subject: cDNA Lib
Message-ID: <1993Feb1.181445.21752@gserv1.dl.ac.uk>
Date: 1 Feb 93 23:17:16 GMT
Sender: list-admin@daresbury.ac.uk
Distribution: bionet
Lines: 7
Original-To: plantbio@uk.ac.daresbury
To whom it may concern,
I am looking for a cDNA expression library of wheat or barley made of
reproductive organs, preferably reproductive buds. Please contact. Thanks
in advance, Avi.
-----------------------------------------------------------------------
Avi Golan
Article 854 of bionet.plants:
Path: samba!concert!uvaarpa!darwin.sura.net!spool.mu.edu!olivea!biosci!CREDIT.ERIN.UTORONTO.CA!oatkin
From: oatkin@CREDIT.ERIN.UTORONTO.CA (Owen Atkin)
Newsgroups: bionet.plants
Subject: Susceptibility of plants to aphids
Message-ID: <93Feb1.132343est.40891@credit.erin.utoronto.ca>
Date: 1 Feb 93 18:23:35 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 28
In a recent study comparing the growth rates, biomass partitioning and
respiration rates of alpine and high arctic ecotypes of Oxyria digyna,
our lab noticed that only the arctic ecotypes were susceptible to
aphid infestation. Quite by accident, some plants that had been left
unattended over the Christmas break became infested with a large number
of aphids. The results was that the arctic ecotypes (3 different ones
collected from Ellesmere Island at 80oN) were completely killed by the
aphids. In contrast, the 2 alpine ecotypes (Swiss and Canadian Rockies)
were almost totally unaffected.
Our group has little knowledge of what attracts aphids to particular plants.
We would be very interested in any suggestions other parties might have on
why the alpine/arctic ecotypes differ so much in their tolerance of aphids.
Some background information:
All plants were grown hydroponically under 24 hour light at 20C
No difference in RGR was observed between the ecotypes
However, the alpines committed more resources to their leaves at the
expense of the the stems and had thinner, more dense leaves (ie a greater
leaf weight ratio, specific leaf area and leaf dry matter content, but lower
leaf fresh weight to leaf area ratio [thinner leaves]) than did the arctic
ecotypes.
Any suggestions on the cause of the difference in aphid tolerance would
be greatly appreciated.
Owen Atkin, Dept of Botany, University of Toronto, Canada
oatkin@credit.erin.utoronto.ca
Article 855 of bionet.plants:
Path: samba!concert!gatech!swrinde!zaphod.mps.ohio-state.edu!howland.reston.ans.net!spool.mu.edu!olivea!decwrl!waikato.ac.nz!comp.vuw.ac.nz!cc-server4.massey.ac.nz!COKelly
From: COKelly@massey.ac.nz (C.J. O'Kelly)
Newsgroups: bionet.plants
Subject: Two lignin methods
Summary: Got an epifluorescence microscope?
Keywords: lignin, autofluorescence, phloroglucinol, histology
Message-ID: <1993Feb1.191513.19753@massey.ac.nz>
Date: 1 Feb 93 19:15:13 GMT
Followup-To: bionet.plants
Organization: Massey University, Palmerston North, New Zealand
Lines: 17
X-Reader: NETNEWS/PC Version 2c
In article <1993Jan31.03105.21141@gserv1.d1.ac.uk>, Tony Travis
(ajt@rri.sari.ac.uk) asks:
. I'd be interested to hear from anyone who knows about lignin histology
. (other than acid phloroglucinol) ...
Only two things I know about.
1: a method for making phloroglucinol preps semipermanent (Speer EO.
1987. Stain Technol. 62: 279).
2: lignin autofluoresces under UV light excitation (lots of refs); for
me, easily the quickest and easiest way to find/show the stuff.
Charley O'Kelly
Mad Phycologist
Article 856 of bionet.plants:
Xref: samba bionet.general:3474 bionet.plants:856
Newsgroups: bionet.general,bionet.plants,bionet.arabidopsis
Path: samba!concert!rock!taco!csemail.cropsci.ncsu.edu!samodena
From: samodena@csemail.cropsci.ncsu.edu (S. A. Modena)
Subject: Electronic access to the Federal Register
Message-ID: <1993Feb1.181104.10469@ncsu.edu>
Summary: the competitive edge via timeliness
Keywords: US Federal Register email electronic documents grants
Sender: news@ncsu.edu (USENET News System)
Organization: Crop Science Dept., NCSU, Raleigh, NC 27695-7620
Distribution: usa
Date: Mon, 1 Feb 1993 18:11:04 GMT
Lines: 70
Since the following was posted to a ListServ (and would not appear to
be a 'private' communication), I am reposting it here FYI.
---------- Text of forwarded message ----------
Date: Mon, 1 Feb 1993 09:14:00 EST
>From: "Jerome McNamara (202) 401-1977" <MCNAMARA@A1.DARTH.ESUSDA.GOV>
To: Multiple recipients of list AGRIC-L <AGRIC-L@uga.cc.uga.edu>
Subject: Re: National Archives and Communications?
Jim Whittington,
I'm the Systems Manager at the Cooperative State Research Service (CSRS) of
the Department of Agriculture and I have been frustrated by the red tape and
resistance I had encountered within your Department. Let me explain, and
perhaps you can help me.
CSRS has been transmitting electronically Federal solicitation notices since
May of 1992. The purpose was to streamline communications to researchers,
research administrators, and contracts and grant officers to maximize
researchers' time for preparation. Unfortunately, the Federal Register is
the only notification source of many research solicitations. Many
researchers and department and grants administrators do not have ready
access to the Federal Register, and, therefore do not have sufficient time
to prepare and submit proposals before the solicitiation due dates. Making
notices available electronically from CSRS alleviates some of this problem.
My frustration begins with the fact that the National Archives, office of
the Federal Register will not provide my agency or any other with an
electronic copy of the Federal Register. Instead, we have to read/scan the
documents to see if there are any Grant Notifications from agencies (Energy,
NASA, Education, etc. etc.), and then re-enter this data into our system for
transmission across the internet.
Current Options:
Commercial Services - they download Federal Register tapes and provide
electronic copies, but are running about a week or more later.
US GPO - The GPO only can publish the "table of contents" electronically -
not the text!
NTIS Fedworld - No option for the Federal Register
The bottom line is that dealines are still missed, and my calendar says that
it is 1993 and we should share the information locked in our databases and
bureaucracies. Any help you can provide me to gain access to current
electronic copies of the Federal Register will be greatly appreciated.
Thankyou.
-Jerry
Jerome J. McNamara
Systems Manager
USDA - Cooperative State Research Service
901 D Street SW, Room 310B
Washington D.C., 20250
Telephone: (202) 401-1977
Internet: mcnamara@darth.esusda.gov
---- End of Forwarded Message -------
Steve
---
+------------------------------------------------------------------+
| In person: Steve Modena AB4EL |
| On phone: (919) 515-5328 |
| At e-mail: nmodena@unity.ncsu.edu |
| samodena@csemail.cropsci.ncsu.edu |
| [ either email address is read each day ] |
| By snail: Crop Sci Dept, Box 7620, NCSU, Raleigh, NC 27695 |
+------------------------------------------------------------------+
Lighten UP! It's just a computer doing that to you. (c)
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Article 857 of bionet.plants:
Newsgroups: bionet.plants
Path: samba!concert!gatech!paladin.american.edu!news.univie.ac.at!vm.univie.ac.at!A8721DAB
From: A8721DAB@vm.univie.ac.at (Alexander Seidel)
Subject: textbooks of histochemistry?
Message-ID: <1993Feb1.203007.6802@newssrv.edvz.univie.ac.at>
Sender: news@newssrv.edvz.univie.ac.at (News System - Vienna University)
Nntp-Posting-Host: helios.edvz.univie.ac.at
Organization: University of Vienna
Date: Mon, 1 Feb 1993 20:16:01 GMT
Lines: 11
Are there any short and comprehensive English textbooks of botanical histo-
chemistry you would recommand?
Thanks in advance
Alexander Seidel
Inst. f. Pflanzenphysiologie
Althanstr. 14
Univ. Vienna
A-1090 Wien
Austria
Article 858 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!PEARL.TUFTS.EDU!GELLMORE
From: GELLMORE@PEARL.TUFTS.EDU (BIOHEAD)
Newsgroups: bionet.plants
Subject: Key to aphid tolerance
Message-ID: <01GU7QIEAR5C8WWYVN@PEARL.TUFTS.EDU>
Date: 1 Feb 93 20:55:00 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 27
Dear Owen:
If I might be allowed to speculate on aphid susceptibility:
Aphids carry diseases to which the arctic ecotype might be
vulnerable. Plant viruses are transmitted by aphids.
There might be mechanical features of the vulnerable ecotype, not
shared by heartier varieties. Stem cross sections might reveal
protective fibrous bundle sheaths around the veins of resistant
ecotypes.
Resistant ecotypes might be hairier (more trichomes, especially
glandular ones), thus impeding aphid mobility.
Resistant ecotypes might be better able to form callose slime plugs,
thereby limiting resource loss to the aphids. Vulnerable ecotypes
in contrast might freely bleed phloem contents through punctured
sieve tube members.
These are things I would look for. It is uncommon for aphids to actually
KILL plants. I have seen horribly thick infestations on wild and domestic
plants (Lupines, and roses), but cannot recall having an entire plant
die from the abuse.
Best, George Ellmore
Biology
Tufts Univ.
Medford, MA USA
Article 847 of bionet.plants:
Newsgroups: bionet.plants
Path: samba!concert!rock!taco!csemail.cropsci.ncsu.edu!samodena
From: samodena@csemail.cropsci.ncsu.edu (S. A. Modena)
Subject: Re: Taxonomists charging into oblivion
Message-ID: <1993Jan30.203238.26288@ncsu.edu>
Sender: news@ncsu.edu (USENET News System)
Organization: Crop Science Dept., NCSU, Raleigh, NC 27695-7620
References: <38426@uflorida.cis.ufl.edu>
Date: Sat, 30 Jan 1993 20:32:38 GMT
Lines: 69
In article <38426@uflorida.cis.ufl.edu> stinger@pine.circa.ufl.edu writes:
>Thank you C.J. O'Kelly for putting up a post that demands
>a response and hence, will keep this group active.
>Your point is well taken and it may be that in New Zealand
>there is no need for IDs. That would be the implied meaning
>of what you are saying. However, in the US where I am, there
>is clearly a need and a need that many are willing to pay for.
>Taxonomy is greatly underfunded IMHO but I don't believe that it
>is due to the demand for compensation for IDs.
I've noticed that University departments have been "consolidating" the
traditional *descriptive* disciplines with the new _adventure_ skills (like
various aspects of mol. bio., advanced modelling, etc.)...and why not?
One year ago, I attended an Extension Service and Computers Conference in
Florida at which a gent from the UK detailed the switch over to a
"recovery of costs" mode for their equivalent of the Cooperative Extension
Service here. Of greatest interest to me, was the _fact_ that thought
there were pre-existing for-fee ag consultancies, the government's
charging a free seemed to *stimulate* a better offering of services by all
concerned, *promoted* a clarefication in everyones' minds (especially the ag
customer) who best offer what, and the net result was that the total
expendiatures for ag info consultancy has increased several fold in the
last five years with NO ONE suffering a loss in gross income (and the
government agencies being now able to recover 50% of costs on their way to
attaining the goal of 100% recovery)!
Whether in the U.S.A., New Zealand or Timbuktu, any good or service that
has a VALUE will have to seek it's marrket clearing price (the point at
which demand just meets supply--or vice versa)...unless that is a legal or
regulatory sanction that forbids that mechanism.
The implications are clear: if the service that one offers for "free" sees a
precipitous drop in demand when switched to a cost recovery scheme, then
that service is worth *only* the time and effort, but not the cash, of its
previous for-free customers.
In my opinion (and it is an opinion), the real complaint from New Zealand
is: how uncomfortable it is that the true value of my "static" service has
been revealed to the public....with the subsequent withdrawal of public
subsidy. I can recall (I am 50 y.o.) a blacksmith who still operated in my
small New England town as late as 1955. For sure, there are still
"smithies" operating here and there, but that is now a "niche" service
that is priced as such (expensive) for those who use the "luxuray" of a
horse, rather than mechanical horsepower. I worked on a kibuttz in Israeli
(years ago) that recalled that the last draft horses were phased out (in
favor of tractors) about 1960. Yes, there were horse on the kibuttz...but
for pleasure riding.
So the question for New Zealand is: how are you going to revolutionize the
content, focus and delivery of your ID service, such that it will be
appreciated in the public eye and command at least a living wage? :^)
Steve
---
+------------------------------------------------------------------+
| In person: Steve Modena AB4EL |
| On phone: (919) 515-5328 |
| At e-mail: nmodena@unity.ncsu.edu |
| samodena@csemail.cropsci.ncsu.edu |
| [ either email address is read each day ] |
| By snail: Crop Sci Dept, Box 7620, NCSU, Raleigh, NC 27695 |
+------------------------------------------------------------------+
Lighten UP! It's just a computer doing that to you. (c)
OOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO
Article 846 of bionet.plants:
Path: samba!concert!gatech!uflorida!pine.circa.ufl.edu!stinger
From: stinger@pine.circa.ufl.edu (GUALA)
Newsgroups: bionet.plants
Subject: RE: Taxonomists charging into oblivion
Message-ID: <38426@uflorida.cis.ufl.edu>
Date: 30 Jan 93 00:21:55 GMT
Sender: news@uflorida.cis.ufl.edu
Reply-To: stinger@pine.circa.ufl.edu
Organization: University of Florida (ufl.edu)
Lines: 20
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News-Software: VAX/VMS VNEWS 1.3-4
Thank you C.J. O'Kelly for putting up a post that demands
a response and hence, will keep this group active.
Your point is well taken and it may be that in New Zealand
there is no need for IDs. That would be the implied meaning
of what you are saying. However, in the US where I am, there
is clearly a need and a need that many are willing to pay for.
Taxonomy is greatly underfunded IMHO but I don't believe that it
is due to the demand for compensation for IDs. I consider ID
work to be busywork that I do for pay or as a special favor
to a friend and the number of requests for me to do it for
pay is definitely increasing, not decreasing. To call oneself
a taxonomist and do only ID work (a situation that I see often
in university situations) is about the same as calling oneself
a taxonomist and sweeping the floor or collecting garbage (which
is what most of those requesting IDs do {just a side gripe}).
It is not advancing research or knowledge at all. I suspect that
the best course is to hire a technician to do ID work and let
the researchers compete for their own funds because the funding
that comes to many programs "because they do IDs" is a hollow
victory. Stinger
Article 859 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!daresbury!daresbury!news
From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: Susceptibility of plants to aphids
Message-ID: <1993Feb2.095959.1092@gserv1.dl.ac.uk>
Date: 2 Feb 93 09:59:33 GMT
References: <93Feb1.211150est.40989@credit.erin.utoronto.ca>; from "Owen Atkin" at Feb 1, 93 9:11 pm
Sender: list-admin@daresbury.ac.uk
Reply-To: ajt@rri.sari.ac.uk
Distribution: bionet
Lines: 44
Original-To: oatkin@ca.utoronto.erin.credit (Owen Atkin)
Original-Cc: plantbio@uk.ac.daresbury, ajt@uk.ac.sari.rri (Tony Travis)
X-Mailer: ELM [version 2.3 PL11]
Owen Atkin said:
>
> Dear Tony,
>
> Thanks for your reply concerning my inquiry about the aphid/alpine-arctic
I hope you don't mind if I post a reply here Owen: you've raised an
issue that may be interesting to discuss further on bionet.plants.
> question. Your suggestion that the aphids may be predating the thinner alpine
> leaves because of easier access to the phloem is a good one - only
> problem is that the aphids actually infested the thicker leaves of the
> arctic ecotypes, rather than the leaves of the alpine. I may have made a
> mistake in the message I sent out to bionet.plants.
Maybe the phloem is nearer the surface or more easily accessible in the
arctic ecotypes?
> In a few weeks I will look more closely at the internal leaf anatomy of the
> leaves (with Dr Nancy Dengler). This may give some indication as to
> whether the leaves differ iways that may help resist aphids
We've just written a couple of papers (in press) about the use of image
analysis to measure cell wall thickness and other anatomical features
automatically:
Travis, A.J., Murison, S.D. & Chesson, A. (1993). Estimation of plant
cell wall thickness and cell size by image skeletonization, Journal
of Agricultural Science, Cambridge, 120, xx-xx.
Travis, A.J., Murison, S.D., Chesson,A. & Walker, K.C. (1993).
Quantitative measurement of stem anatomy as an indicator of
varietal performance. Aspects of Applied Biology, Physiology of
Varieties, 34, xx-xx.
Perhaps it would be interesting to compare your leaves using a similar
technique?
Tony.
--
Dr. A.J.Travis, | Tony Travis
Rowett Research Institute, | JANET: <ajt@uk.ac.sari.rri>
Greenburn Road, Bucksburn, | other: <ajt@rri.sari.ac.uk>
Aberdeen, AB2 9SB. UK. | phone: 0224-712751
Article 860 of bionet.plants:
Xref: samba bionet.general:3484 bionet.plants:860
Path: samba!concert!gatech!usenet.ins.cwru.edu!agate!stanford.edu!hsdndev!nmr-z!OCHRE.MGH.HARVARD.EDU!CHERRY
From: cherry@OCHRE.MGH.HARVARD.EDU
Newsgroups: bionet.general,bionet.plants,bionet.arabidopsis
Subject: crossposting (re: electronic access to the federal register)
Message-ID: <1993Feb2.043342.22180@nmr-z.mgh.harvard.edu>
Date: 2 Feb 93 04:33:42 GMT
References: <1993Feb1.181104.10469@ncsu.edu>
Sender: usenet@nmr-z.mgh.harvard.edu (User for USENET news postings)
Reply-To: cherry@OCHRE.MGH.HARVARD.EDU
Distribution: usa
Organization: Molecular Biology - Mass Gen Hospital
Lines: 19
Nntp-Posting-Host: ochre.mgh.harvard.edu
Caution: Crossposting is good for usenet readers of bionet groups.
However it is bad for those that receive these messages via one of the
BioSci mailing lists. The usenet software only transmits one copy of
the message eventhough it can be read in several newsgroups. This is
the source of the problem with the mailing lists. The mailing list
corresponding to the first newsgroup stated for a posting gets the
message. The second and any following groups will only be available to
the usenet readers and not to the mailing list readers. Thus this
message (which was posted to: bionet.general, bionet.plants, and
bionet.arabidopsis) will be received by the mailing list for
bionet.general while the bionet.plants and bionet.arabidopsis mailing
lists will not.
I'd guess that those reading the Plants and Arabidopsis mailing lists
represent a large percentage of the total readers of the group. This
is probably true for several other bionet groups as well. Thus it is
my recommendation that crossposting should not be used.
Mike Cherry
Article 861 of bionet.plants:
Newsgroups: bionet.plants
Path: samba!concert!gatech!swrinde!zaphod.mps.ohio-state.edu!howland.reston.ans.net!paladin.american.edu!news.univie.ac.at!vm.univie.ac.at!A8471DAB
From: A8471DAB@vm.univie.ac.at (Dr. Ch. Wawrosch/Prof.Dr. B. Kopp)
Subject: Ayurveda medicinal plants
Message-ID: <1993Feb2.144936.12319@newssrv.edvz.univie.ac.at>
Sender: news@newssrv.edvz.univie.ac.at (News System - Vienna University)
Nntp-Posting-Host: helios.edvz.univie.ac.at
Organization: University of Vienna
Date: Tue, 2 Feb 1993 14:39:44 GMT
Lines: 18
Hi
here at the Institute of Pharmacognosy, University of Vienna, we have a
project going on dealing with traditional medicinal plants used in the
Indian Ayurveda medicine.
Our main problem is that it's very difficult to get original plant
material (drugs as well as voucher specimens) for systematical
examination (microscopy, chemistry etc.): the people who sell the drugs
in India mostly do not cooperate, means they do not reveal where they
get their drugs from.
Does ANYONE know adresses of botanical gardens (e.g. in Delhi), breeders,
cultivators etc. etc.??? Or does anyone know other people who could help
us? Any telephone number, adress, fax nr. etc. could help us.
We would be very pleased if anyone could help us.
Sincerely,
Chris
(a8471dab@awiuni11.edvz.univie.ac.at)
Article 862 of bionet.plants:
Xref: samba bionet.general:3485 bionet.plants:862
Newsgroups: bionet.general,bionet.plants,bionet.arabidopsis
Path: samba!concert!gatech!darwin.sura.net!newsserver.jvnc.net!yale.edu!cs.yale.edu!not-for-mail
From: weed-matthew@cs.yale.edu (Matthew Weed)
Subject: other minorities in biology was re: Sticking to WOMEN IN BIOLOGY\
Message-ID: <1km2mhINNrt0@SUNED.ZOO.CS.YALE.EDU>
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Sender: news@cs.yale.edu (Usenet News)
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Organization: Yale University Computer Science Dept., New Haven, CT 06520-2158
References: <1993Feb1.181104.10469@ncsu.edu> <1993Feb2.043342.22180@nmr-z.mgh.harvard.edu>
Distribution: usa
Date: Tue, 2 Feb 1993 15:06:57 GMT
Sadly, women are not the only "minority" which is discriminated against in the sciences.
I, as a blind person, suffer from many preconceptions about my abilities in the sciences, which I have had to work very hard to overcome.
Yes, there are some things I can not do, such as microscope work, (or at least not with the acuracy of sighted persons), micro disection, and many other lab-related tasks.
However, I can learn the implications of the material as well as any other student, and, given a little extra help, can perform as well as other students in my classes.
Another area which is often a problem for me, is something which sighted people would never consider. Doubtless many here work in large university-based laboratories where equipment is strewn around rather haphazzardly.
For me, this is a problem, since many of the objects found in lab are things which
are smaller in terms of floor space than they are in area coverage at say head level.
I have had more than a few graduate students save both me and expensive eqwuipment from serious damage in the nick of time.
This is particularly frustrating, when the equipment flows out of laboratories and into hallways.
This happens frequently, and makes it difficult for me to see my professors in lab, as their labs may be some distance from the elevator, and so I have to pass by labs which are not very conscientious about keeping their extra refrigerators, autoclaves, e
tc out of the hallways.
Ihope that a few people will read this post, and think twice about where they put things in lab buildings, as people less able to deal with their placement may need to pass through the hallway, room, etc where they have left their equipment.
I am happy to discuss the matter further with anyone interested.
You can reach me at the address in my signature.
--
"The nation behaves well if it treats the natural resources as assets
which it must turn over to the next generation, increased and not
impaired in valued." --President Theodore Roosevelt
Matthew Weed weed-matthew@suned.zoo.cs.yale.edu
Article 863 of bionet.plants:
Newsgroups: bionet.plants
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From: adwright@iastate.edu ()
Subject: Re: Susceptibility of plants to aphids
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Just my $.02 worth, but i had a field of EMS M3 plants (maize of course) im my
summer nursery and i noticed one that was just covered with aphids. They were
on the sheaths, leaf blades, stems, everywhere. It was a B73 inbred background.
I got 5 seeds from this guy (self pollination). The plant looked otherwise
normal. Perhaps this is a mutant that accumulates an aphid attractor or
does not produce an aphid inhibitor. I will increase these this Summer.
Needless to say, they will be pampered.
Allen
Article 863 of bionet.plants:
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From: adwright@iastate.edu ()
Subject: Re: Susceptibility of plants to aphids
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References: <93Feb1.211150est.40989@credit.erin.utoronto.ca>; from "Owen Atkin" at Feb 1, 93 9:11 pm <1993Feb2.095959.1092@gserv1.dl.ac.uk>
Distribution: bionet
Date: Tue, 2 Feb 1993 18:27:44 GMT
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Just my $.02 worth, but i had a field of EMS M3 plants (maize of course) im my
summer nursery and i noticed one that was just covered with aphids. They were
on the sheaths, leaf blades, stems, everywhere. It was a B73 inbred background.
I got 5 seeds from this guy (self pollination). The plant looked otherwise
normal. Perhaps this is a mutant that accumulates an aphid attractor or
does not produce an aphid inhibitor. I will increase these this Summer.
Needless to say, they will be pampered.
Allen
Article 864 of bionet.plants:
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From: etaylor@ccu.umanitoba.ca (Euan R. Taylor)
Newsgroups: bionet.plants
Subject: cereal nitrogen fixation
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A second question, relating to a naive (very) ex[eriment we did some time ago.
If you plant surface sterilised seeds in autoclaved soil, growth is about
1 1/2 weeks behind that of regular seeds in regular soil. What do you
think I could be driving off in the soil tthat might cause this (NH4,
oxygen, ?) we didn't do the other combinations at the time, as I say it
was a very naive experiment that we set up last thing before christmas,
jsut out of interest.
--
etaylor@ccu.umanitoba.ca
dept. Plant Science, U. of Manitoba, Winnipeg, R3L OH3
"my institution doesnt even know I exist"
Article 860 of bionet.plants:
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From: cherry@OCHRE.MGH.HARVARD.EDU
Newsgroups: bionet.general,bionet.plants,bionet.arabidopsis
Subject: crossposting (re: electronic access to the federal register)
Message-ID: <1993Feb2.043342.22180@nmr-z.mgh.harvard.edu>
Date: 2 Feb 93 04:33:42 GMT
References: <1993Feb1.181104.10469@ncsu.edu>
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Caution: Crossposting is good for usenet readers of bionet groups.
However it is bad for those that receive these messages via one of the
BioSci mailing lists. The usenet software only transmits one copy of
the message eventhough it can be read in several newsgroups. This is
the source of the problem with the mailing lists. The mailing list
corresponding to the first newsgroup stated for a posting gets the
message. The second and any following groups will only be available to
the usenet readers and not to the mailing list readers. Thus this
message (which was posted to: bionet.general, bionet.plants, and
bionet.arabidopsis) will be received by the mailing list for
bionet.general while the bionet.plants and bionet.arabidopsis mailing
lists will not.
I'd guess that those reading the Plants and Arabidopsis mailing lists
represent a large percentage of the total readers of the group. This
is probably true for several other bionet groups as well. Thus it is
my recommendation that crossposting should not be used.
Mike Cherry
Article 865 of bionet.plants:
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From: EWEN@WHMAIN.uel.ac.uk
Newsgroups: bionet.plants
Subject: Re: cereal nitrogen fixation
Message-ID: <1993Feb3.084212.25142@gserv1.dl.ac.uk>
Date: 3 Feb 93 08:42:41 GMT
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X-Mailer: Pegasus Mail v2.3 (R4).
Greetings Plant People,
On 2nd Feb, Euan Taylor from Manitoba wrote...
>A second question, relating to a naive (very) ex[eriment we did some
>time ago.
>If you plant surface sterilised seeds in autoclaved soil, growth is
>about
>1 1/2 weeks behind that of regular seeds in regular soil. What do you
>think I could be driving off in the soil tthat might cause this (NH4,
>oxygen, ?) we didn't do the other combinations at the time, as I say
>it
>was a very naive experiment that we set up last thing before
>christmas, jsut out of interest.
Now, call ME naieve, and everybody out there please feel free to
shoot me down, but can we for a moment consider 3 little words about
which my PhD revolves...
SOIL MICROBIAL BIOMASS
Now, looking at this experiment from the viewpoint of a
microbiologist gone soils, autoclaving the soil will kill off the
soil microbial biomass, and, more specifically in regards to Euan's
experiment, those portions of the SMB that could prove to be
beneficial to a germinating plant (N-fixers, possibly symbionts,
possibly mycorrhizae)
Autoclaving is going to kill off 99.9% of the SMB, releasing a flush
of nutrients into the soil. What I have observed happens in this
situation is that there is, within a period of 2-3 days, a massive
recovery of the SMB from the spore bank and those portions of fungal
hyphae that have managed to survive the autoclaving. These then
utilise the nutrient made available from the kill-off, but as the
community grows, it then steps into a period of competition, both
within the SMB and with anything else in the soil (viz, Euan's
germinating plant), for resources that are becoming increasingly
unavailable (i.e. specifically P), which leads to the establishment
of a fairly aggressive community (bugs switch resources to production
of antimicrobial compounds) that may also have an effect on this poor
little seedling.
Now, I have observed this peaking/killoff of the SMB over a period of
60 days in an artificial soil (50% clay, 40% sharp sand, 10% sterile
Organic matter), and, whilst I'm still chewing the data, would be
willing to suggest that what is happening is more or less as I have
outlined it above.
How to put this politely... Listen all you plant people out there.
The processes do not start proceed and end with your little green
things. The Soil Microbial Biomass is the eye of the needle through
which the processes of plant nutrition must pass (both ways, I know,
since root exudates form a vital part of the nutrient supply for the
rhizosphere Micro-organisms).
For great examples of how to completely ignore the SMB in plant
microcosm work, please feel free to mail me. I have a very long list.
So, let's have it people. All criticism gratefully recieved, because,
as Euan's sig file says, My institution doesn't know I exist either !
(Incidentally, great name, Euan. Not too many of us about !)
And I'ld be very grateful just to see how many other people out there
are working in similar fields to myself. The Title of the thesis is
"The application of Plant Strategist Theory to the processes of Soil
Microbial Ecology". All correspondance gratefully recieved and
replied to !
All the best,
EWEN
***************************************************
* "Beam Me Up, Scotty, *
* This Planet Sucks !" *
***************************************************
* Ewen McPherson, Research Assistant *
* e-Mail: EWEN@whmain.uel.ac.uk *
* Snail : Environment and Industry Research Unit *
* Department of Environmental Sciences *
* University of East London *
* Romford Road, Stratford, *
* London E15 4LZ *
* United Kingdom *
***************************************************
Article 866 of bionet.plants:
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From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: cereal nitrogen fixation
Message-ID: <1993Feb3.135422.16522@gserv1.dl.ac.uk>
Date: 3 Feb 93 13:53:06 GMT
Sender: list-admin@daresbury.ac.uk
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Original-To: plantbio@uk.ac.daresbury
In article <9323084255.MIN-LNJAa03968.bionet-news@uk.ac.daresbury> you wrote:
: Greetings Plant People,
Greetings, Ewen.
: [autoclaved soil stuff deleted ...]
: How to put this politely... Listen all you plant people out there.
ok, we're listening ...
: The processes do not start proceed and end with your little green
: things. The Soil Microbial Biomass is the eye of the needle through
: which the processes of plant nutrition must pass (both ways, I know,
: since root exudates form a vital part of the nutrient supply for the
: rhizosphere Micro-organisms).
I beg to differ: the 'process' starts with energy capture by autotrophs
(ie. "little green things") that supply the complex carbohydrates used
by the heterotrophic 'SMB' in their helpful symbiosis - rather like the
symbiotic relationships between plant biologists and microbiologists ;-)
I don't dispute the great importance of the SMB, but the observation
that plants grow readily under hydroponic (or aeroponic) cultivation
demonstrates that the processes of plant nutrition do not depend on the
presence of an active SMB.
The issue you are raising, Ewen, is the importance of SMB to nutrient
availability. Hydroponic cultivation is clearly only possible because
of the symbiotic relationship between the chemical industry and some
horticulturalists :-(
: For great examples of how to completely ignore the SMB in plant
: microcosm work, please feel free to mail me. I have a very long list.
:
: So, let's have it people. All criticism gratefully recieved, because,
: as Euan's sig file says, My institution doesn't know I exist either !
: (Incidentally, great name, Euan. Not too many of us about !)
: [...]
My institution knows I exist in cyberspace, and it knows how much it
cost to get me there but it doesn't know the real value of the journey.
Tony.
--
Dr. A.J.Travis, | Tony Travis
Rowett Research Institute, | JANET: <ajt@uk.ac.sari.rri>
Greenburn Road, Bucksburn, | other: <ajt@rri.sari.ac.uk>
Aberdeen, AB2 9SB. UK. | phone: 0224-712751
Article 867 of bionet.plants:
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From: GELLMORE@PEARL.TUFTS.EDU (BIOHEAD)
Newsgroups: bionet.plants
Subject: Come again, Ewen
Message-ID: <01GUA8976GHS8WY23X@PEARL.TUFTS.EDU>
Date: 3 Feb 93 15:44:00 GMT
Sender: daemon@net.bio.net
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Lines: 12
Ewen (with apologies to netters more conscientious than I when it comes
to SAVING messages):
Your first posting on SMB was not only provocative, it was actually useful
for some of my work. Unfortunately, I deleted it by mistake. If I could
prevail upon you to salvage it and send it to me, that would be great.
(or if any netter still has it around, I'll take it that way too).
Thank you, George Ellmore
Biology
Tufts Univ
Medford, MA
Article 868 of bionet.plants:
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From: GELLMORE@PEARL.TUFTS.EDU (BIOHEAD)
Newsgroups: bionet.plants
Subject: Fungicide compositions
Message-ID: <01GUAFYDMG9C8WXWT7@PEARL.TUFTS.EDU>
Date: 3 Feb 93 19:25:00 GMT
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I am working on a grant proposal dealing in part with fungicides
and other antimicrobials used to treat crop seeds. Usually seeds thus
treated are coated in bright pink dust to warn consumers not to eat them.
I now have a list of the trade names for many of these microbials, but
Could somebody supply me with a reference that can translate trade
names such as Thiram into a chemical formula? Something analagous
to the PDR for pharmaceuticals, or the Merck Index.
Many thanks.
Article 869 of bionet.plants:
Newsgroups: bionet.plants
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From: goldsmig@cgsvax.claremont.edu
Subject: Russian Botanist's Name?
Message-ID: <1993Feb3.124402.1@cgsvax.claremont.edu>
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Date: 3 Feb 93 12:44:02 PST
A recent radio broadcast of "Sound Prints" featured a Russian botanist (?)
who gained international fame for his collection of seeds and whose career
spanned the first half (?) of this century.
Can someone help me with the name of this gentleman and, if possible, the
title of his primary work? Thank you very much in advance.
George Goldsmith
Article 870 of bionet.plants:
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From: GELLMORE@PEARL.TUFTS.EDU (BIOHEAD)
Newsgroups: bionet.plants
Subject: Thank you for Ewen's msg
Message-ID: <01GUALHYHX6S8WXZRL@PEARL.TUFTS.EDU>
Date: 3 Feb 93 22:04:00 GMT
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Many thanks to Plant Bionetters for quickly responding to my request
to recover Ewen's soil microbial biomass message. I'm all set now.
Article 871 of bionet.plants:
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From: wick@NETCOM.COM (Potter Wickware)
Newsgroups: bionet.plants
Subject: Re: Russian Botanist's Name?
Message-ID: <Pine.3.05.9302031527.A3894-a100000@netcom2>
Date: 3 Feb 93 23:28:37 GMT
References: <9302032109.AA16557@net.bio.net>
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I didn't hear the broadcast, but it sounds like NI Vavilov, who
not only greatly expanded the collection started by RE Regel in 1890, but
was a hero of the battle of Leningrad. See the memoir in Diversity
7(4):10, May 1991.
Potter Wickware wick@netcom.com
On 3 Feb 1993 goldsmig@cgsvax.claremont.edu wrote:
> A recent radio broadcast of "Sound Prints" featured a Russian botanist (?)
> who gained international fame for his collection of seeds and whose career
> spanned the first half (?) of this century.
>
> Can someone help me with the name of this gentleman and, if possible, the
> title of his primary work? Thank you very much in advance.
>
> George Goldsmith
>
Article 872 of bionet.plants:
Newsgroups: bionet.plants
Path: samba!concert!gatech!taco!csemail.cropsci.ncsu.edu!samodena
From: samodena@csemail.cropsci.ncsu.edu (S. A. Modena)
Subject: hydroponic potatoes
Message-ID: <1993Feb4.033142.13347@ncsu.edu>
Sender: news@ncsu.edu (USENET News System)
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Date: Thu, 4 Feb 1993 03:31:42 GMT
Lines: 26
I'm relaying something from another list becuase it might get a response
from someone reading this list.
Please reply to: dharris@upei.ca ....and not me. :^)
---------------------Forwarded Message--------------
>From AGRIC-L@uga.cc.uga.edu Wed Feb 3 14:34:12 1993
Message-Id: <9302031934.AA105912@csemail.cropsci.ncsu.edu>
Date: Wed, 3 Feb 1993 13:31:21 -0500
Reply-To: Agriculture Discussion <AGRIC-L@uga.cc.uga.edu>
Sender: Agriculture Discussion <AGRIC-L@uga.cc.uga.edu>
>From: DHARRIS@UPEI.CA
Subject: HELP-MINITUBERS
Comments: To: AGRIC-L@UGA.bitnet
To: Multiple recipients of list AGRIC-L <AGRIC-L@uga.cc.uga.edu>
I am looking for information about propagating potato minitubers
hydroponically. These would then be used as seed stock, hopefully
bypassing several disease stages. Is anyone out there in the ether
working in this area or can direct me to someone who is?
Thanks
Don Harris
dharris@upei.ca
-----------------End of Forwarded Message----------------
Article 872 of bionet.plants:
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From: samodena@csemail.cropsci.ncsu.edu (S. A. Modena)
Subject: hydroponic potatoes
Message-ID: <1993Feb4.033142.13347@ncsu.edu>
Sender: news@ncsu.edu (USENET News System)
Organization: Crop Science Dept., NCSU, Raleigh, NC 27695-7620
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I'm relaying something from another list becuase it might get a response
from someone reading this list.
Please reply to: dharris@upei.ca ....and not me. :^)
---------------------Forwarded Message--------------
>From AGRIC-L@uga.cc.uga.edu Wed Feb 3 14:34:12 1993
Message-Id: <9302031934.AA105912@csemail.cropsci.ncsu.edu>
Date: Wed, 3 Feb 1993 13:31:21 -0500
Reply-To: Agriculture Discussion <AGRIC-L@uga.cc.uga.edu>
Sender: Agriculture Discussion <AGRIC-L@uga.cc.uga.edu>
>From: DHARRIS@UPEI.CA
Subject: HELP-MINITUBERS
Comments: To: AGRIC-L@UGA.bitnet
To: Multiple recipients of list AGRIC-L <AGRIC-L@uga.cc.uga.edu>
I am looking for information about propagating potato minitubers
hydroponically. These would then be used as seed stock, hopefully
bypassing several disease stages. Is anyone out there in the ether
working in this area or can direct me to someone who is?
Thanks
Don Harris
dharris@upei.ca
-----------------End of Forwarded Message----------------
Article 872 of bionet.plants:
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Path: samba!concert!gatech!taco!csemail.cropsci.ncsu.edu!samodena
From: samodena@csemail.cropsci.ncsu.edu (S. A. Modena)
Subject: hydroponic potatoes
Message-ID: <1993Feb4.033142.13347@ncsu.edu>
Sender: news@ncsu.edu (USENET News System)
Organization: Crop Science Dept., NCSU, Raleigh, NC 27695-7620
Date: Thu, 4 Feb 1993 03:31:42 GMT
Lines: 26
I'm relaying something from another list becuase it might get a response
from someone reading this list.
Please reply to: dharris@upei.ca ....and not me. :^)
---------------------Forwarded Message--------------
>From AGRIC-L@uga.cc.uga.edu Wed Feb 3 14:34:12 1993
Message-Id: <9302031934.AA105912@csemail.cropsci.ncsu.edu>
Date: Wed, 3 Feb 1993 13:31:21 -0500
Reply-To: Agriculture Discussion <AGRIC-L@uga.cc.uga.edu>
Sender: Agriculture Discussion <AGRIC-L@uga.cc.uga.edu>
>From: DHARRIS@UPEI.CA
Subject: HELP-MINITUBERS
Comments: To: AGRIC-L@UGA.bitnet
To: Multiple recipients of list AGRIC-L <AGRIC-L@uga.cc.uga.edu>
I am looking for information about propagating potato minitubers
hydroponically. These would then be used as seed stock, hopefully
bypassing several disease stages. Is anyone out there in the ether
working in this area or can direct me to someone who is?
Thanks
Don Harris
dharris@upei.ca
-----------------End of Forwarded Message----------------
Article 873 of bionet.plants:
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From: ralston@ROCKVAX.ROCKEFELLER.EDU
Newsgroups: bionet.plants
Subject: Re: hydroponic potatoes
Message-ID: <9302041807.AA27543@rockvax.ROCKEFELLER.EDU>
Date: 4 Feb 93 18:07:34 GMT
References: <9302040820.AA07626@net.bio.net>
Sender: daemon@net.bio.net
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In response to the forwarded message of Don Harris about
potato minitubers, I recall a few years back that a company
named Plant genetics Inc (PGI) in Davis, CA was producing
something like this, but I don't recall if it was hydroponic
culture or not. Maybe this is a start in the right direction?
Diana Horvath
Article 874 of bionet.plants:
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From: Thomas Bjorkman <Thomas_Bjorkman@cornell.edu>
Newsgroups: bionet.plants
Subject: Re: cereal nitrogen fixation
Date: 4 Feb 1993 17:54:10 GMT
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In article <C1uFAz.2An@ccu.umanitoba.ca> Euan R. Taylor,
etaylor@ccu.umanitoba.ca writes:
>A second question, relating to a naive (very) experiment we did some
time ago.
>If you plant surface sterilised seeds in autoclaved soil, growth is about
>1 1/2 weeks behind that of regular seeds in regular soil. What do you
>think I could be driving off in the soil tthat might cause this (NH4,
>oxygen, ?) we didn't do the other combinations at the time, as I say it
>was a very naive experiment that we set up last thing before christmas,
>just out of interest.
Surface sterilizing seeds makes them leaky, and generally reduces vigor
of the seedling (e.g. delays emergence). Autoclaving soil gives you all
kinds of weird and wonderful chemical reactions that don't usually
happen. Some of these apparently yield compounds that inhibit plant
growth. It is often the case that planting surface-sterilized seed is
autoclaved soil produces sick plants. The reason is pretty obvious: a
weak host, lots of nutrients available and no competition. You couldn't
make it much more inviting for pathogens. Unless the soil is infested
with Pithium, Rhizoctonia or another vicious pathogen, you will do better
planting untreated seed into unsterilized soil. Work with the microflora
instead if fighting it.
I guess from the thread that you are studying soil bacteria, so this
suggestion may not be appropriate for you. If you really need sterile
natural soil, you might look into microwaving it. It is possible to
sterilize soil without much heating by microwaving in short bursts.
Article 875 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!ONRSDE.AGR.CA!REELEDER
From: REELEDER@ONRSDE.AGR.CA
Newsgroups: bionet.plants
Subject: Fungicide compositions - reply
Message-ID: <01GUBX9JIO2A006Y34@GW.AGR.CA>
Date: 4 Feb 93 21:52:25 GMT
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>Subj: Fungicide compositions
>I am working on a grant proposal dealing in part with fungicides
>Could somebody supply me with a reference that can translate trade
>names such as Thiram into a chemical formula? Something analagous
>to the PDR for pharmaceuticals, or the Merck Index.
A commercial source of info would be the W.T. Thompson Co.
set of publications on agricultural chemicals [Agricultural Chemicals.
Book IV. Fungicides. W.T. Thompson, P.O. Box 9335, Fresno CA 93791].
However, a call to a local office of the pesticide regulatory branch
of USDA or EPA should be useful. They normally have computer
databases with this info. Also you could contact the manufacturer
directly; they have literature with this info and safe handling info.
Article 876 of bionet.plants:
Newsgroups: bionet.plants
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From: etaylor@ccu.umanitoba.ca (Euan R. Taylor)
Subject: is this group ill?
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This newsgroup seems to be in very poor health, are plant scientists
allergic to computers? or are there just not many of us around?
--
etaylor@ccu.umanitoba.ca
dept. Plant Science, U. of Manitoba, Winnipeg, R3L OH3
"my institution doesnt even know I exist"
Article 877 of bionet.plants:
Newsgroups: bionet.plants
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From: djd@cbnewsg.cb.att.com (david.j.daulton)
Subject: Re: is this group ill?
Message-ID: <1993Feb5.001322.18079@cbfsb.cb.att.com>
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Newsgroup ill? No, but I think some of us are a bit intimidated.
Most of my garden questions go to "rec.gardens" (and I see Kay
Klier posts both there and here).
I still enjoy reading this group, although I don't understand
much about the carbon cycle, etc. And I like having the group
around in case I ever need it for any really technical problems.
(In that vein, I plan to post something soon about Mimulus
Moschatus, and ask for theories about what made it lose its strong musky
scent in the first decades of this century--but I want to make sure I
got all my facts straight first.)
I suspect there are many out there who read rec.gardens and
this group too, and hold back a bit here. True?
If NOT true, maybe some of use could cross post some recent items of
interest on rec.gardens, such as...
-- "Let's talk about pawpaws"
-- "Does anyone have any facts and figures about pesticides banned in the U.S.
but produced here, shipped abroad, and consumed on imported produce".
Dave Daulton, Columbus, Ohio
Article 878 of bionet.plants:
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From: GSBS1032%UTSPH.THENET@LIB.TMC.EDU
Newsgroups: bionet.plants
Subject: RE: Russian Botanist's Name?
Message-ID: <9302032200.AA22142@lib.tmc.edu>
Date: 3 Feb 93 22:04:29 GMT
Sender: kristoff@net.bio.net
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>A recent radio broadcast of "Sound Prints" featured a Russian botanist (?)
>who gained international fame for his collection of seeds and whose career
>spanned the first half (?) of this century.
>Can someone help me with the name of this gentleman and, if possible, the
>title of his primary work? Thank you very much in advance.
>George Goldsmith
Probably, this broadcast was devoted to Nicolay Vavilov, a famous Russian
genetisist who collected an outstanding collection of plant seeds from all
over the world and who was arrested and executed at Stalin time.
Julia
Article 880 of bionet.plants:
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From: kristoff@net.bio.net (David Kristofferson)
Newsgroups: bionet.plants
Subject: Re: is this group ill?
Message-ID: <Feb.5.12.00.41.1993.12420@net.bio.net>
Date: 5 Feb 93 20:00:42 GMT
References: <C1y4w5.Eto@ccu.umanitoba.ca> <1993Feb5.001322.18079@cbfsb.cb.att.com> <C1zpHy.1CF@gpu.utcc.utoronto.ca>
Organization: BIOSCI International Newsgroups for Biology
Lines: 41
georgen@gpu.utcc.utoronto.ca (G. Ng) writes:
>In article <1993Feb5.001322.18079@cbfsb.cb.att.com> djd@cbnewsg.cb.att.com (david.j.daulton) writes:
>>Newsgroup ill? No, but I think some of us are a bit intimidated.
>>Most of my garden questions go to "rec.gardens" (and I see Kay
>>...
>>I suspect there are many out there who read rec.gardens and
>>this group too, and hold back a bit here. True?
>Although I'm not entirely certain of the original charter of bionet.plants,
>wasn't it created for discussion on more botany, research-oriented
>questions rather than horticultural issues, which I think rec.gardens is for?
>--
>george ng
>univ. of toronto undergraduate
>molecular plant biology/botany
The entire bionet domain is dedicated to biological research. Here is
an excerpt from the original charter by Tony Travis, the discussion
leader.
----------------------------------------------------------------------
This newsgroup will initially be open to all aspects of plant biology
(macro and molecular), and if future usage warrants, proposals will be
put forward to form subgroups under the USENET bionet.plant heirarchy,
e.g., bionet.plant.botany. The discussion leader's interests are in
botany so some of the topics for the group will include the following:
Discussion of issues relating to botany in general, and distribution
of software concerned with the applications of computer techniques in
all aspects of plant biology including, microscopy and analysis of
plant material, image analysis of tissues and intact plants, data
logging and analysis of plant growth by computer.
----------------------------------------------------------------------
Sincerely,
Dave Kristofferson
BIOSCI/bionet Manager
kristoff@net.bio.net
Article 881 of bionet.plants:
Newsgroups: bionet.plants
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From: adwright@iastate.edu ()
Subject: Re: is this group ill?
Message-ID: <adwright.728941374@vincent1.iastate.edu>
Sender: news@news.iastate.edu (USENET News System)
Organization: Iowa State University, Ames IA
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Date: Fri, 5 Feb 1993 19:42:54 GMT
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In <C1y4w5.Eto@ccu.umanitoba.ca> etaylor@ccu.umanitoba.ca (Euan R. Taylor) writes:
>This newsgroup seems to be in very poor health, are plant scientists
>allergic to computers? or are there just not many of us around?
>--
>etaylor@ccu.umanitoba.ca
>dept. Plant Science, U. of Manitoba, Winnipeg, R3L OH3
>"my institution doesnt even know I exist"
No not ill, but i for one am frantically getting seed ready (maize of course)
for the summer nursery. I don't know what everybody elses excuse is. ;)
Allen
Article 882 of bionet.plants:
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From: scolnipa@esvax.dnet.dupont.com
Newsgroups: bionet.plants
Subject: let's revive the group
Message-ID: <9302052250.AA21754@esds01.es.dupont.com>
Date: 5 Feb 93 22:50:22 GMT
Sender: daemon@net.bio.net
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There seems to be a consensus that the development of leaves and
chloroplasts follow separate and independent pathways. Some recent
observations in our lab, however, suggest that there is "cross-talk"
between leaves and chloroplasts during development. Any useful
observations out there?
Pablo A. Scolnik
Article 882 of bionet.plants:
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From: scolnipa@esvax.dnet.dupont.com
Newsgroups: bionet.plants
Subject: let's revive the group
Message-ID: <9302052250.AA21754@esds01.es.dupont.com>
Date: 5 Feb 93 22:50:22 GMT
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There seems to be a consensus that the development of leaves and
chloroplasts follow separate and independent pathways. Some recent
observations in our lab, however, suggest that there is "cross-talk"
between leaves and chloroplasts during development. Any useful
observations out there?
Pablo A. Scolnik
Article 883 of bionet.plants:
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From: mwfolsom@hydra.unm.edu (Mike Folsom)
Newsgroups: bionet.plants
Subject: Looking for Gunnera & Peperomia plants
Date: 6 Feb 1993 01:26:58 GMT
Organization: Dept. of Biology, University of New Mexico, Albuquerque
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Folks -
I want to do some work on Gunnera and wonder if anyone out
there in cyberspace knows of a source for live plants of any
of its species. Thompson & Morgan last catalogue lists seeds
of one species of Gunnera but I'd really prefer to get hold
of live plants so that would be flowering sooner.
Re: the Peperomias - I'm looking for some very exotic species
of Pep's from South and Central America. I've been on the
phone to quite a few Botanical Gardens and Nurseries in North
America to no avail.
Addresses of a nursery or a botanical garden that has them in
their collection would be appreciated.
Thanks to all -
Michael
_______________________________________________________________________________
M.W.Folsom/Biology/UNM/Albuquerque,NM~87131/505.277.4277/mwfolsom@hydra.unm.edu
Article 885 of bionet.plants:
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From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: is this group ill?
Message-ID: <1993Feb6.232314.5069@gserv1.dl.ac.uk>
Date: 6 Feb 93 23:21:57 GMT
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X-Newsreader: TIN [version 1.1 PL7]
In article <9324235932.MIN-LVGBa03968.bionet-news@uk.ac.daresbury> you wrote:
: This newsgroup seems to be in very poor health, are plant scientists
: allergic to computers? or are there just not many of us around?
If you think it is in "very poor health" why not start a discussion
about *your* area of interest. As others have noted on this thread,
there _is_ a tendency for people to respond to an interesting article
by email and the discussion then 'disappears' from bionet.plants.
However, if you look at the traffic report for bionet over the last
year, you will see that bionet.plants is a moderately active group and
I consider it to be well worthwhile participating in the discussions.
If you think bionet.plants is of low intellectual content then I
suggest you do something about it by example. I don't think plant
biologists are allergic to computers and there are plenty of us around!
Above all else, please remember that bionet.plants is not a passive
medium and its success, or otherwise, depends on the willingness of
people to participate. If you find it boring/uninteresting then post
something *you* are interested in and start a new discussion that does
interest you.
Tony.
--
Dr. A.J.Travis, | Tony Travis
Rowett Research Institute, | JANET: <ajt@uk.ac.sari.rri>
Greenburn Road, Bucksburn, | other: <ajt@rri.sari.ac.uk>
Aberdeen, AB2 9SB. UK. | phone: 0224-712751
Article 886 of bionet.plants:
Newsgroups: bionet.plants
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From: delwiche@sunflower.bio.indiana.edu (Charles Delwiche)
Subject: Re: let's revive the group
Message-ID: <C228sD.3E3@usenet.ucs.indiana.edu>
Summary: Yes, let's.
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Date: Sun, 7 Feb 1993 04:07:24 GMT
Lines: 81
In article <9302052250.AA21754@esds01.es.dupont.com> scolnipa@esvax.dnet.dupont.com writes:
>
>There seems to be a consensus that the development of leaves and
>chloroplasts follow separate and independent pathways. Some recent
>observations in our lab, however, suggest that there is "cross-talk"
>between leaves and chloroplasts during development. Any useful
>observations out there?
>
>Pablo A. Scolnik
Hmmm... This is just off the top of my head, but how has the
"consensus that the development of leaves and chloroplasts follow
separate and independent pathways" emerged? I find that a surprising
assertion. I suppose that it would be difficult to demonstrate
interactions between development at two very different levels of
organization (subcellular vs whole-organ), but I personally would be
surprised if there were not at least some cross-talk between the
various levels of organization. There might not be direct
communication, but I would expect at least associative coordination.
I say this because I am familiar with the close synchronization of
organellar and organismal developmental pathways in simpler organisms
than plants.
I do much of my work on Charophycean (sensu Mattox and Stewart) green
algae -- the Charophyceae are a class of fresh water green algae that
have a number of interesting ultrastructural, biochemical, and
molecular characteristics shared with land plants. By "land plant" I
mean "bryophytes" and drier plants like ferns, "vascular cryptogams",
and seed plants. What we understand of photosynthetic eukaryotic
phylogeny suggests that charophytes + plants constitute a monophyletic
group. But there is much more between-taxon diversity of chloroplast
form in the charophytes than there is plants, and this lets one make
some interesting observations.
For example in one charophycean order, the Coleochaetales, there is
normally only one plastid per cell (this is also the condition for one
group of land plants, the "hornworts", or Anthocerotae, which are
informally lumped as "bryophytes). This plastid is a large,
frisbee-shaped structure which is typically appressed to the dorsal
cell wall. When the alga, which is multicellular, grows, it is
obviously imperative that cell division and plastid division be well
synchronized. It is easy to see this synchronization if you study a
living organism; the whole operation is meticulously choreographed.
Even more elaborate is the plastid division that accompanies zygotic
division. I don't want to torture you all with the gorey details of
algal life histories, but in the genus _Coleochaete_ when the zygote
germinates it undergoes a poorly understood set of divisions that
ultimately produces 8, 16 or even 32 cells from the zygote. The
zygote initially has a single plastid like a (very large) vegetative
cell, and this plastid undergoes a fantastically complex division that
partitions the plastid and its sub-organellar components, and also
associates the progeny plastids with the appropriate regions of the
cell for subsequent placement in the multiple cells that are produced
from the zygote. The meiotic divisions, plastid divisions, and
cytokinesis are all ridiculously complex, and equally well coordinated.
OK, so you would probably say "that's all very well and good, but all
that happens in a single cell, which is a far cry from coordination of
organellar and organ development". But for me it provides a vivid
demonstration of the fact that algal plastids are not just randomly
partitioned during cell division and development. Their development
is in fact quite closely coordinated with the development of the alga
as a whole. It would not surprise me to learn that plant plastids are
similarly coordinated with the overall maturation of the cell. Is it
asking too much to jump from there to coordination with maturation of
the plant organ? I don't know. Maybe. I do believe that at higher
levels of organization (the leaf) there are emergent properties that
one cannot easily predict from properties at lower levels of
organization (at the level of the cell, or at the subcellular level).
What do you think? Is this a complete red herring?
Chuck
P.S. I like this newsgroup, but haven't had the time to post lately.
--
Charles F. Delwiche | 'O Oysters, come and walk with us!'
Dept. Biology, I.U. | The Walrus did beseech.
Bloomington, IN 47405 | 'A pleasant walk, a pleasant talk,
[delwiche@bio.indiana.edu]| Along the briny beach'. -- L. Carrol
Article 887 of bionet.plants:
Xref: samba bionet.genome.arabidopsis:874 bionet.plants:887 bionet.virology:38
Newsgroups: bionet.genome.arabidopsis,bionet.plants,bionet.virology
Path: samba!concert!gatech!udel!bogus.sura.net!darwin.sura.net!news.udel.edu!chopin.udel.edu!daschaff
From: daschaff@chopin.udel.edu (Dennis A Schaff)
Subject: Mid-Atlantic Plant Molecular Biology Society Meeting
Message-ID: <C259LH.EK@news.udel.edu>
Sender: usenet@news.udel.edu
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Organization: University of Delaware
Date: Mon, 8 Feb 1993 19:17:40 GMT
Lines: 17
First Announcement for:
The 10th annual Mid-Atlantic Plant Molecular Biology Society (MAPMBS)
meeting will be held July 15-16, 1993 at the University of Delaware.
For those of you not familiar with MAPMBS, it was founded in 1984 as a means
to ensure scientists in the Mid-Atlantic region of a high-quality,
accessible, and affordable plant molecular biology meeting each year. The
society particularly wishes to encourage graduate student and postdoctoral
participation in presenting oral reports and posters, and contributing to
discussions. It is our hope that the plant molecular biology community will
continue to support the MAPMBS as it has done in the past.
For additional information contact: Dennis Schaff, Department of Plant and
Soils Sciences, University of Delaware, Newark, DE 19717-1303.
Phone (302)831-2534, FAX (302)831-3651 or E-mail daschaff@brahms.udel.edu
Article 888 of bionet.plants:
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From: gellmore@pearl.tufts.edu
Newsgroups: bionet.plants
Subject: Alt. Agriculture Reviewers sought
Message-ID: <1993Feb8.162906.1@pearl.tufts.edu>
Date: 8 Feb 93 21:29:06 GMT
Sender: news@news.tufts.edu (USENET News System)
Organization: Tufts University - Medford, MA
Lines: 15
Netters: (this group has plenty of professional vitality, thank you very much)
I'm in the throes of a grant proposal to study alternative (naturally derived)
compounds for use in treating crop seeds against soil pathogens. The granting
agency requires that I submit the names and current addresses of FOUR
external peer reviewers. These reviewers should already be members of journal
editorial boards or major research panels (NSF, USDA, etc).
Anybody out there interested in being on my list? Soil microbiologists, seed
pathologists would be appropriate.
Many thanks,
George Ellmore
Biology
Tufts Univ
Medford, MA
Article 889 of bionet.plants:
Path: samba!concert!uvaarpa!darwin.sura.net!spool.mu.edu!agate!biosci!CompuServe.COM!71552.541
From: 71552.541@CompuServe.COM (Newman/Rabson)
Newsgroups: bionet.plants
Subject: Wetlands vs. boats
Message-ID: <930209053749_71552.541_DHG43-2@CompuServe.COM>
Date: 9 Feb 93 05:37:50 GMT
Sender: kristoff@net.bio.net
Distribution: bionet
Lines: 57
Ladies and Gentlemen:
I am a CompuServe subscriber, hoping to correspond with Internet
users via email. I am trying to locate individuals or interest
groups concerned with wetlands; a fellow CompuServer "cruised" the
Internet for me and suggested that I contact you.
I serve on the Wetlands Board of Stafford County, VA. Our Board is
the local permitting authority for activities in the county's tidal
wetlands; we are concerned mostly with mixed-vegetation fringe
marshes on relatively small freshwater tidal creeks.
The Board is often presented with applications for activities
(marinas, launching ramps) that we can expect to increase boat
traffic in a given area. We are searching for information that
might help us to answer the following question:
How can one determine, even approximately, the carrying capacity
(in recreational boats) of a given body of water? To put it another
way, How much boat traffic can a given body of water support before
it begins to suffer damage to wetlands and marine systems?
We know in a general way what consequences to expect. I don't mean
catastrophic events like fuel or sewage spills, although they are
certainly a concern. I mean more insidious, chronic effects like
increased wake battering of shorelines and vegetation, or the
effects of sediment resuspension on the marine environment.
We know that beyond a certain point we will start to get damage,
but we have little idea of how close to that point we are. We have
found very few studies that even attempt to deal with the question
- no wonder, really, since there is an immense number of variables:
stream width, bank geometry, soil and sediment types, vegetation
types, natural turbidity, spawning seasons, boating habits, hull
shapes, etc., etc.
Even with the few studies we have found that do relate to areas
similar to ours, it is hard to extrapolate because fine points of
the local situation can make huge differences. And we have found
no discussion at all of some very basic questions - specific plant
communities' susceptibility to damage from increased wakes, for
instance.
So it may be a foolish question, or perhaps I should say a futile
one. Nevertheless, if you have any suggestion about how I might
find more information on any aspect of it, I will be very grateful.
George L. Newman
P.O. Box 167
Hartwood, VA 22471
Voice/FAX: 703-752-5135
Email: 71552.541@compuserve.com
Article 890 of bionet.plants:
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From: UGG00005@VM.UOGUELPH.CA (Nanfei Xu)
Newsgroups: bionet.plants
Subject: Tri- & tetra-cotyledons in dicots
Message-ID: <9302100732.AA02782@net.bio.net>
Date: 10 Feb 93 07:33:14 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 28
Hi, everyone:
I posted a similar message early on this net. It didn't spark any
discussion, all I received was one response. I'm really curious about this
subject and need help from you.
I'm studying alfalfa embryogenesis. Alfalfa (Medicago sativa L.) is a
dicotyledonous plant. However, there are quite a few tri- or tetra-
cotyledonous embryos from the plants I grow in growth chamber. The ratio of
di-/(tri- + tetra-) is roughly 3:1 for all the plants with different amount of
fertilizer. Does anybody out there know why there is tri- or tetra-cots on
dicots plant? What is the evolutionary relationship of tri- or tetra-cots to
mono- and dicots if there is any? In general, is tri- or tetra-cots derived
from the fusing of two early stage embryos, or is it from one zygote? Is there
any description of developmental morphology? Is this character inheritable?
Any discussion on the net or information to me is greatly appreciated.
Dear Sir or Madame:
******************************************************************************
Nanfei Xu Phone: 519-824-4120 Ext. 8347
Department of Botany
University of Guelph E-mail: UGG00005@VM.UOGUELPH.CA
Guelph, Ontario, Canada or
N1G 2W1 BOTXU@VM.UOGUELPH.CA
******************************************************************************
Article 891 of bionet.plants:
Newsgroups: bionet.plants
Path: samba!concert!gatech!paladin.american.edu!howland.reston.ans.net!bogus.sura.net!udel!news.udel.edu!chopin.udel.edu!daschaff
From: daschaff@chopin.udel.edu (Dennis A Schaff)
Subject: Mid-Atlantic Plant Molecular Biology Society Meeting
Message-ID: <C28Hw2.9sp@news.udel.edu>
Summary: Dates July 15 and 16, 1993
Keywords: MAPMBS
Sender: usenet@news.udel.edu
Nntp-Posting-Host: chopin.udel.edu
Organization: University of Delaware
Date: Wed, 10 Feb 1993 13:09:37 GMT
Lines: 17
First Announcement for:
The 10th annual Mid-Atlantic Plant Molecular Biology Society (MAPMBS)
meeting will be held July 15-16, 1993 at the University of Delaware.
For those of you not familiar with MAPMBS, it was founded in 1984 as a means
to ensure scientists in the Mid-Atlantic region of a high-quality,
accessible, and affordable plant molecular biology meeting each year. The
society particularly wishes to encourage graduate student and postdoctoral
participation in presenting oral reports and posters, and contributing to
discussions. It is our hope that the plant molecular biology community will
continue to support the MAPMBS as it has done in the past.
For additional information contact: Dennis Schaff, Department of Plant and
Soils Sciences, University of Delaware, Newark, DE 19717-1303.
Phone (302)831-2534, FAX (302)831-3651 or E-mail daschaff@brahms.udel.edu
Article 892 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!POPGEN.BIOLOGY.UMT.EDU!tmo
From: tmo@POPGEN.BIOLOGY.UMT.EDU (Thomas Mitchell-Olds)
Newsgroups: bionet.plants
Subject: Flavr-savr tomato
Message-ID: <9302101519.AA01814@popgen.biology.umt.edu>
Date: 10 Feb 93 15:19:56 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 12
Dear Netters:
I want to lecture to my genetics class on Calgene's
flavr-savr tomato. However, I can't remember the paper
where I read the details. Can anyone suggest some useful
references? Many thanks!
Tom Mitchell-Olds
University of Montana
tmo@selway.umt.edu
Article 893 of bionet.plants:
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From: PPA006@UKCC.UKY.EDU (arcady mushegian)
Newsgroups: bionet.plants
Subject: hygromycin B
Message-ID: <9302101711.AA14582@net.bio.net>
Date: 10 Feb 93 17:07:59 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 4
Hi,
I would appreciate indications on the cheapest source of solid Hygromycin B
Thanks in advance
Arcady
Article 895 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!toxic!tyersome
From: tyersome@toxic (Randall Tyers)
Newsgroups: bionet.plants
Subject: Re: Tri- & tetra-cotyledons in dicots
Date: 10 Feb 1993 19:04:32 GMT
Organization: Plant Biology
Lines: 37
Sender: tyersome@insect.berkeley.edu
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In article <9302100732.AA02782@net.bio.net> UGG00005@VM.UOGUELPH.CA (Nanfei Xu)
writes:
>[...]
> I'm studying alfalfa embryogenesis. Alfalfa (Medicago sativa L.) is a
>dicotyledonous plant. However, there are quite a few tri- or tetra-
>cotyledonous embryos from the plants I grow in growth chamber. The ratio of
>di-/(tri- + tetra-) is roughly 3:1 for all the plants with different amount of
>fertilizer. Does anybody out there know why there is tri- or tetra-cots on
>dicots plant? What is the evolutionary relationship of tri- or tetra-cots to
>mono- and dicots if there is any?
Your "Tri-/Tetra-cots" are still the same species of plant (alfalfa)which is a
member of the Order Dicotyledones. Thus, I'm not sure that I understand
this question.
> In general, is tri- or tetra-cots derived
>from the fusing of two early stage embryos, or is it from one zygote?
I know that many Gymnosperms have *many* cotyledons and this has nothing
to do with fusion so I would suspect that they come from one zygote.
> Is there
>any description of developmental morphology? Is this character inheritable?
>Any discussion on the net or information to me is greatly appreciated.
A very useful persn for you to contact would be Dr. Kaplan. He can be
reached at 510 642-4187 or 111 Koshland Hall, UC Berkeley, Berkeley CA
94720
>...
>Nanfei Xu Phone: 519-824-4120 Ext. 8347
>Department of Botany
>University of Guelph E-mail: UGG00005@VM.UOGUELPH.CA
>Guelph, Ontario, Canada or
>N1G 2W1 BOTXU@VM.UOGUELPH.CA
Randall Tyers tyersome@insect.berkeley.edu
Article 896 of bionet.plants:
Path: samba!concert!rock!stanford.edu!ames!agate!biosci!CLVAX1.CL.MSU.EDU!preissj
From: preissj@CLVAX1.CL.MSU.EDU ("J Preiss--Seq Anal")
Newsgroups: bionet.plants
Subject: re Hygromycin B, from Lenny B.
Message-ID: <9302110412.AA18526@net.bio.net>
Date: 11 Feb 93 04:09:00 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 15
Howdy
I don't know the cheapest source of Hygromycin, but I can tell you
how to cut your Hyg costs by 10 fold. Just drop your concentration down
10 fold. I tested the growth of Agro (LBA4301) on 523 medium for 1 week
and found that 1000 fold below published levels (20ug/ml) still completely
inhibits growth. I then switched to 2ug/ml Hyg for my plant transformations
and have had no problem with Agro growth on 3 and 4 week old plates (which
my student forgot to transfer). Good Luck.
Dr. Leonard N. Bloksberg
PreissJ@clvax1.cl.msu.edu
Dept. of Biochemistry
Michigan State University
Article 897 of bionet.plants:
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From: jlw2582@rigel.tamu.edu (WHITSON, JOHN LEE)
Newsgroups: bionet.plants
Subject: Gibberelin inhibitors
Date: 11 Feb 1993 10:00 CST
Organization: Texas A&M University, Academic Computing Services
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Does anyone know of an internode-length reducer that i can get my hands
on? i've been told that Gibberelic acid inhibitors work quite nicely,
but everyone (outside of the Hort dept at Texas A&M) that i've asked has
met my question with a blank stare.
Any ideas?
John Whitson
jlw2582@rigel.tamu.edu
Article 898 of bionet.plants:
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From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: Gibberelin inhibitors
Message-ID: <1993Feb11.173518.21216@gserv1.dl.ac.uk>
Date: 11 Feb 93 17:29:42 GMT
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WHITSON, JOHN LEE (jlw2582@edu.tamu.rigel) wrote:
: Does anyone know of an internode-length reducer that i can get my hands
: on? i've been told that Gibberelic acid inhibitors work quite nicely,
: but everyone (outside of the Hort dept at Texas A&M) that i've asked has
: met my question with a blank stare.
:
: Any ideas?
How about Blue light ;-)
Tony.
--
Dr. A.J.Travis, | JANET: <ajt@uk.ac.sari.rri>
Rowett Research Institute, | other: <ajt@rri.sari.ac.uk>
Greenburn Road, Bucksburn, | phone: +44 (0)224 712751
Aberdeen, AB2 9SB. UK. | fax: +44 (0)224 715349
Article 899 of bionet.plants:
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nt.edu!purves
From: purves@jarthur.claremont.edu (Bill Purves)
Subject: Re: Gibberelin inhibitors
Message-ID: <1993Feb11.210023.4208@muddcs.claremont.edu>
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Lines: 21
In article <11FEB199310005261@rigel.tamu.edu> jlw2582@rigel.tamu.edu (WHITSON, JOHN LEE) writes:
>Does anyone know of an internode-length reducer that i can get my hands
>on? i've been told that Gibberelic acid inhibitors work quite nicely,
>but everyone (outside of the Hort dept at Texas A&M) that i've asked has
>met my question with a blank stare.
>
>John Whitson
>jlw2582@rigel.tamu.edu
Your source was referring to inhibitors of gibberellin synthesis.
Compounds with names like AMO-1618, B-9, CCC, etc. These will
"dwarf" many kinds of dicots, such as chrysanthemums. They
result in reduced intermode length but normal size flowers.
(bill)
William K. Purves
Department of Biology
Harvey Mudd College
Claremont, CA 91711
Article 900 of bionet.plants:
Newsgroups: bionet.plants
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From: hughes@rkna50.riken.go.jp (Martin Hughes)
Subject: Internode Inhibition
Message-ID: <1993Feb12.072253.4626@rkna50.riken.go.jp>
Sender: hughes@rkna50.riken.go.jp (Martin Hughes)
Organization: Institute of Physical & Chemical Research (RIKEN) Saitama,Japan
Distribution: bionet
Date: Fri, 12 Feb 1993 07:22:53 GMT
Lines: 46
>ajt@rri.sari.ac.uk (Tony Travis) writes:
>>WHITSON, JOHN LEE (jlw2582@edu.tamu.rigel) wrote:
>>: Does anyone know of an internode-length reducer that i can get my hands
>>: on? i've been told that Gibberelic acid inhibitors work quite nicely,
>>: but everyone (outside of the Hort dept at Texas A&M) that i've asked has
>>: met my question with a blank stare.
>>:
>>: Any ideas?
>How about Blue light ;-)
Well, after having "lurked" on this group since its inception, I
finally feel confident enough to comment on something - and
what is more to the point, in direct reply to something by the
Great Tony!!!
Firstly, to answer the guys question. Yes, GA biosynthesis inhibitors
will work to decrease internode expansion. Uniconazole or
Paclobutrazol will do the job for you. (Uniconazole is from a
Japanese company-Sumi7 (a branch of Sumitomo - ICI sells
Paclobutrazol, maybe under adifferent name). Can be applied
by spray, to the roots, or to seeds (with germinated radicles). Seeds
can be soaked for 1h in1mM (Uniconazole), followed by washing
for 1h in water. For further info (esp. for Paclobutrazol) see Plant
Physiol. (1992) 100: 651-654.
And, as Tony said so will blue light.
And this, I think is the interesting point. Several other things will
also inhibit internode expansion. Recently Frances et al. (Plant Cell
4: 1519-1530) noted the similar photomorphogenic phenotypes
of their light-independant developing pea mutant with previously
reported heat-shocked seedlings - in that both had (amongst
their characteristics) reduced internodes. Additionally, leaves
underwent development. So, the question is, are all these causes
(GA inhibitors, phytochrome transduction pathways and heat
shock treatments) inter-related (and if so, to what level), or
do they all serve to "trigger" the same (series of) responses
in a trivial manner (after all, there are a limited number of things
a plant can do in response to a stimulus!)? Any thoughts?
> Tony.
Martin Hughes
Lab. Photoperception & Signal Transduction: Frontier Research:
RIKEN:
Article 901 of bionet.plants:
Path: samba!concert!rock!stanford.edu!enterpoop.mit.edu!biosci!daresbury!daresbury!ajt
From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: is this group ill?
Message-ID: <1993Feb12.140921.14630@gserv1.dl.ac.uk>
Date: 12 Feb 93 14:09:10 GMT
References: <9324235932.MIN-LVGBa03968.bionet-news@uk.ac.daresbury>
Sender: list-admin@daresbury.ac.uk
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Apparently-To: <plantbio@daresbury>
X-Newsreader: TIN [version 1.1 PL7]
Euan R. Taylor (etaylor@ca.umanitoba.ccu) wrote:
: This newsgroup seems to be in very poor health, are plant scientists
: allergic to computers? or are there just not many of us around?
According to the arbitron summary posted recently by Una Smith in
bionet.general 175 people were caught actually reading bionet.plants
out of an estimated 6600 who are suspected of doing so:
+-- Position in Arbitron readership listing
| +-- Estimated total number of people who read the group, worldwide.
| | +-- Actual number of readers in sampled population
| | | +-- Propagation: how many sites receive this group at all
| | | | +-- Recent traffic (messages per month)
| | | | | +-- Recent traffic (kilobytes per month)
| | | | | | +-- Cost ratio: $US/month/rdr
V V V V V V V
1461 6600 175 35% 62 122.8 0.01 bionet.plants
Interestingly, the messages per month comes out at about two messages
per day posted to bionet.plants. If you remember Jonathan Marder was
concerned that PHOTOSYN subscribers would not subscribe to
PLANTBIO/bionet.plants because of the (high) traffic on this group.
Tony.
--
Dr. A.J.Travis, | JANET: <ajt@uk.ac.sari.rri>
Rowett Research Institute, | other: <ajt@rri.sari.ac.uk>
Greenburn Road, Bucksburn, | phone: +44 (0)224 712751
Aberdeen, AB2 9SB. UK. | fax: +44 (0)224 715349
Article 902 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!daresbury!daresbury!ajt
From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: let's revive the group
Message-ID: <1993Feb12.142443.15333@gserv1.dl.ac.uk>
Date: 12 Feb 93 14:24:28 GMT
References: <9325225743.MIN-LBCAa05390.bionet-news@uk.ac.daresbury>
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scolnipa@com.dupont.dnet.esvax wrote:
:
: There seems to be a consensus that the development of leaves and
: chloroplasts follow separate and independent pathways. Some recent
: observations in our lab, however, suggest that there is "cross-talk"
: between leaves and chloroplasts during development. Any useful
: observations out there?
There _is_ a hypothesis that chloroplasts evolved as endosymbionts and
retain vestiges of genetic autonomy but the close integration of their
photosynthetic role with the rest of the cell's metabolic activities in
differentiated, photosynthetically active cells makes it difficult to
believe that chloroplasts develop independantly of the cells containing
them.
Can you elaborate on the recent observations that you have made?
Tony.
--
Dr. A.J.Travis, | JANET: <ajt@uk.ac.sari.rri>
Rowett Research Institute, | other: <ajt@rri.sari.ac.uk>
Greenburn Road, Bucksburn, | phone: +44 (0)224 712751
Aberdeen, AB2 9SB. UK. | fax: +44 (0)224 715349
Article 903 of bionet.plants:
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From: Thomas Bjorkman <Thomas_Bjorkman@cornell.edu>
Newsgroups: bionet.plants
Subject: Re: Gibberelin inhibitors
Date: 12 Feb 1993 14:19:28 GMT
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In article <11FEB199310005261@rigel.tamu.edu> WHITSON,
jlw2582@rigel.tamu.edu writes:
>Does anyone know of an internode-length reducer that i can get my hands
on?
Getting your hands on the plants will actually work well. Gently
stroking the stem for a few seconds a day will shorten the internode.
Internode length responds markedly to the temperature right after sunrise
(colder => shorter).
>I've been told that Gibberellic acid inhibitors work quite nicely.
There are quite a few commercial products used by the bedding plant
industry--these have been mentioned by other posters. Note that B-Nine
is the same stuff as Alar (daminozide)--you may have trouble getting hold
of it.
So why do you want to shorten the internodes, and on what plant? Your
answers to those questions may lead to some revised answers.
Article 904 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!CLVAX1.CL.MSU.EDU!preissj
From: preissj@CLVAX1.CL.MSU.EDU ("J Preiss--Seq Anal")
Newsgroups: bionet.plants
Subject: re tricots and tetracots
Message-ID: <9302121740.AA03513@net.bio.net>
Date: 12 Feb 93 17:36:00 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 20
I have seen the variable cotyledon syndrome quite a bit in tomato, and a
little in other species. Charlie Rick did some work to show that most
multicots is tomato are just environmentally induced, and not heritable.
He can change the frequency of multicots with different growth conditions,
as I recall, but nothing like an all or nothing response. Just little
increments. Some of the multicots are heritable, however, and are associated
with abberant chromosome numbers. Some of the tomato trisomics routinely
have tricots. These are heritable. This can be an interesting phenomenon,
but most of my plant anatomy and evolution instructors in college just
showed me stacks of cases of supposedely definative plant parts changing
numbers (eg, petal number, leaflet number, ovary number, etc) and said that
plants are just plastic like that. It was good enough for me then, but I
have always thaught this was an interesting question. Hope this gives you
some ideas to work with.
Dr. Leonard N. Bloksberg
PreissJ@clvax1.cl.msu.edu
Dept. of Biochemistry
Michigan State University
Article 905 of bionet.plants:
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Newsgroups: bionet.plants
Message-ID: <UfTYzO_00WBME1_0pr@andrew.cmu.edu>
Date: Sun, 14 Feb 1993 08:57:46 -0500
From: Michel Fougeres <mf0w+@andrew.cmu.edu>
Subject: Help! Fungicide!
Lines: 11
I know this isn't the right newsgroup to post this question at but I can't
remember the name of the proper one and this is the one with the closest
name/subject.
Anyone have remedies for preventing fungus from growing on seeds when the
seeds sprout? My beans are being massacred in their little greenhouse by
some type of fungus. Any products? Home remedies? Anything appreciated.
Thanks, Ian
(post an answer, don't email because this is a friend's account)
Article 906 of bionet.plants:
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From: purves@jarthur.claremont.edu (Bill Purves)
Subject: Re: is this group ill?
Message-ID: <1993Feb14.203455.14459@muddcs.claremont.edu>
Sender: news@muddcs.claremont.edu (The News System)
Organization: Harvey Mudd College, Claremont, CA 91711
References: <9324235932.MIN-LVGBa03968.bionet-news@uk.ac.daresbury> <1993Feb12.140921.14630@gserv1.dl.ac.uk>
Distribution: bionet
Date: Sun, 14 Feb 1993 20:34:55 GMT
Lines: 30
>Euan R. Taylor (etaylor@ca.umanitoba.ccu) wrote:
>: This newsgroup seems to be in very poor health, are plant scientists
>: allergic to computers? or are there just not many of us around?
And then Tony said:
>According to the arbitron summary posted recently by Una Smith in
>bionet.general 175 people were caught actually reading bionet.plants
>out of an estimated 6600 who are suspected of doing so:
There is another aspect of newsgroup activity that may be less visible.
I'm not sure I've posted to this group more than once or twice, but
I not infrequently do an e-mail reply to a post. I suspect this is
fairly common--one wants to follow up on something, or answer a
question, when it seems likely that either (a) the followup may not
be of general interest or (b) many people are likely to have the
answer to the same simple question and one doesn't want to eat up
the bandwidth.
This group seems healthy to me. I certainly enjoy it. I'd hate to
see it reach the activity level of, say, rec.music.classical -- that's
a very interesting newsgroup, but even with the -k command it eats
up a terrific amount of time :-)
(bill)
William K. Purves purves@jarthur.claremont.edu
Department of Biology
Harvey Mudd College (909) 621-8021
Claremont, CA 91711
Article 907 of bionet.plants:
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From: burchil@ccu.umanitoba.ca (Charles Andrew Burchill)
Subject: Herbarium database programs, online, Unix, PC, Mac. Question.
Message-ID: <C2GFn7.In8@ccu.umanitoba.ca>
Summary: Need info on Herbarium database programs.
Keywords: Herbarium IBM PC Apple Macintosh Unix
Sender: news@ccu.umanitoba.ca
Nntp-Posting-Host: ccu.umanitoba.ca
Organization: University of Manitoba, Winnipeg, Canada
Date: Sun, 14 Feb 1993 20:01:54 GMT
Lines: 59
First off I would like to say thanks to everyone on this group for your
past input into my questions.
I am developeing a small herbarium database program for the Macintosh
(in Hypercard) for one of the research stations at the University of Manitoba.
It has (will have) the following capabilities:
Online user editible gazetteer.
Online user editible list of families, that has a corrisponding list of
genera associated with a selected family (this could be expanded
to species as well).
Map of Manitoba (Canada) for marking location of collection, automatic
calculation of Lat and long if unknown from the position on the map.
Fields for:
Family, Genus, Species, Other(var, form, etc...) authorities,
Notes, habitat, collected by, determined by, lat, long, date of
collection.
Will import and export ASCII text files.
Will print appropriate sized herbarium labels, with map.
I would like to know if there are any commercial, PD, or shareware
herbarium record programs around. If there are I would like to make sure
that my import and export routines are compatable.
Does any one know if there are any herbarium databases online (over the
internet and free for access). If there are could you point me in
the appropriate direction. I believe that it would be usefull to
put the manitoba herbarium on line but do not have any suggestions about
how to organize the database. A Unix based program for this would be
prefered.
Lastly: If any one is interested in the herbarium front end that I am working
on please drop me a note and I will send you a copy. The current front end
is dedicated for Manitoba Canada, but I would be willing to localize it.
Any suggestions would be appreciated. The manual is MS Word format, if
this is a problem I can convert it to MacWrite, WriteNow, WordPerfect (mac or
PC), ASCII (without graphics).
I am no longer working in the Dept. of Botany but still have contacts there
and would still like to see our herbarium expand. If you have any information
that can not be sent to me via electronic mail it can be sent to the
adress below.
Thank you for your time.
cb
Charles A. Burchill.
Dept. of Community Health Science
Manitoba Center for Health Policy and Evaluation
T155E Old Basic Medical Science Bldg., Bannatyne Campus
University of Manitoba
Winnipeg, Manitoba, Canada
R3T 2N2
internet: <burchil@ccu.umanitoba.ca>
--
Charles A. Burchill ,__o //
<burchil@ccu.umanitoba.ca> _-\_<, / /
University of Manitoba, Winnipeg, Canada (*)/'(*)/ /
Article 908 of bionet.plants:
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From: public@darkhorse.acf-lab.alaska.edu (UAF Public Account)
Subject: Re: Wetlands vs. boats
Message-ID: <1993Feb15.052409.27264@raven.alaska.edu>
Keywords: Wetlands
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Distribution: bionet
Date: Mon, 15 Feb 1993 05:24:09 GMT
Lines: 76
In article <930209053749_71552.541_DHG43-2@CompuServe.COM>
71552.541@CompuServe.COM (Newman/Rabson) writes:
> Ladies and Gentlemen:
>
> I am a CompuServe subscriber, hoping to correspond with Internet
> users via email. I am trying to locate individuals or interest
> groups concerned with wetlands; a fellow CompuServer "cruised" the
> Internet for me and suggested that I contact you.
>
> I serve on the Wetlands Board of Stafford County, VA. Our Board is
> the local permitting authority for activities in the county's tidal
> wetlands; we are concerned mostly with mixed-vegetation fringe
> marshes on relatively small freshwater tidal creeks.
>
> The Board is often presented with applications for activities
> (marinas, launching ramps) that we can expect to increase boat
> traffic in a given area. We are searching for information that
> might help us to answer the following question:
>
> How can one determine, even approximately, the carrying capacity
> (in recreational boats) of a given body of water? To put it another
> way, How much boat traffic can a given body of water support before
> it begins to suffer damage to wetlands and marine systems?
>
> We know in a general way what consequences to expect. I don't mean
> catastrophic events like fuel or sewage spills, although they are
> certainly a concern. I mean more insidious, chronic effects like
> increased wake battering of shorelines and vegetation, or the
> effects of sediment resuspension on the marine environment.
>
> We know that beyond a certain point we will start to get damage,
> but we have little idea of how close to that point we are. We have
> found very few studies that even attempt to deal with the question
> - no wonder, really, since there is an immense number of variables:
> stream width, bank geometry, soil and sediment types, vegetation
> types, natural turbidity, spawning seasons, boating habits, hull
> shapes, etc., etc.
>
> Even with the few studies we have found that do relate to areas
> similar to ours, it is hard to extrapolate because fine points of
> the local situation can make huge differences. And we have found
> no discussion at all of some very basic questions - specific plant
> communities' susceptibility to damage from increased wakes, for
> instance.
>
> So it may be a foolish question, or perhaps I should say a futile
> one. Nevertheless, if you have any suggestion about how I might
> find more information on any aspect of it, I will be very grateful.
>
> George L. Newman
> P.O. Box 167
> Hartwood, VA 22471
>
> Voice/FAX: 703-752-5135
> Email: 71552.541@compuserve.com
>
>
>
There SHOULD BE modelling studies done under Coastal Management Plan funds
and Coastal Energy Impact Program (CEIP) funds from NOAA, Dept. of
Commerce, Corps of Engineers (related 404 dredge & fill permitting),
University of Delaware Environmnetal Engineering Dept. on Chesapeake Bay,
and other state universities along the Eastern Seaboard for the Inland
Waterway.
If not there may be some from San Francsisco Bay Conservation &
Development Commission in SF, and the State Water Resource Council, and
US Bureau of Reclamation or Bureau of Outdoor Recreation. Reference
Sacramento-San Joaquin Delta boat traffic impacts from boom in activity.
Failing that, a librarian or consulting firm could do research for you.
New electronic library searches via File Transfer Protocol, or even
easier: The NAtional Archives' Electronic Document Office, and the
U.S. Gov't Printing Office mega-BBSs.
Article 909 of bionet.plants:
Path: samba!concert!gatech!usenet.ins.cwru.edu!agate!stanford.edu!enterpoop.mit.edu!biosci!daresbury!buzz.bmc.uu.se!corax.udac.uu.se!sunic!kixtal!bart.mic.ki.se!micjrs
From: micjrs@mica.mic.ki.se (Richard Soderberg, MD)
Newsgroups: bionet.plants
Subject: Continuous light, is it ok?
Message-ID: <204@kixtal.UUCP>
Date: 15 Feb 93 09:15:27 GMT
Sender: news@kixtal.UUCP
Organization: The Karolinska Institute, Sweden
Lines: 8
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X-XXDate: Mon, 15 Feb 93 09:23:46 GMT
Is it possible to make a general statement about the effects of
*continous*
light applied to indoor plants?
My goal is to increase the volume of green leaves, not the protein
contents etc.
(I'm gonna look at my flowers, not eat them!)
TIA
/RS
Article 910 of bionet.plants:
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From: wastec@unpsun1.cc.unp.ac.za (Centre For Waste Technology)
Newsgroups: bionet.plants
Subject: Plant distribution in Aussie
Message-ID: <1993Feb15.095918.9886@gserv1.dl.ac.uk>
Date: 15 Feb 93 09:55:39 GMT
Sender: list-admin@daresbury.ac.uk
Distribution: bionet
Lines: 19
Original-To: plantbio@uk.ac.daresbury
Original-Cc: wastec@ZA.AC.UND.CC.Bertha
X-Mailer: ELM [version 2.3 PL11]
Has Schoenoplectus triquestrus; syn. Scirpus triqueter been recorded for
Australia, Tasmania or New Zealand as an introduction.?
Am working on the distribution in South Africa of species of the genus
Schoenoplectus and wish to know if certain species have been introduced
to this country and to others in the southern hemisphere
##################################################################
J. Browning
Botany Department
University of Natal
Box 375
Pietermaritzburg 3200
South Africa
e mail wastec@unpsun1.cc.unp.ac.za
########################################################################
Article 911 of bionet.plants:
Path: samba!concert!rutgers!gvls1!udel!wupost!uwm.edu!biosci!daresbury!daresbury!ajt
From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: Gibberelin inhibitors
Message-ID: <1993Feb15.113349.13686@gserv1.dl.ac.uk>
Date: 15 Feb 93 11:30:22 GMT
References: <93213125353.MIN-LPBAa13302.bionet-news@uk.ac.daresbury>
Sender: list-admin@daresbury.ac.uk
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X-Newsreader: TIN [version 1.1 PL7]
Thomas Bjorkman (Thomas_Bjorkman@edu.cornell) wrote:
: In article <11FEB199310005261@rigel.tamu.edu> WHITSON,
: jlw2582@rigel.tamu.edu writes:
: >Does anyone know of an internode-length reducer that i can get my hands
: on?
:
: Getting your hands on the plants will actually work well. Gently
: stroking the stem for a few seconds a day will shorten the internode.
: Internode length responds markedly to the temperature right after sunrise
: (colder => shorter).
Is the plant responding to a mechanical stimulus here, or is it eg.
temperature (from the hands) or damage to the hairs on the surface and
consequent changes is the thickness of the boundary layer ?
Or, is it perhaps a chemical transferred from your green fingers ? ;-)
Tony.
--
Dr. A.J.Travis, | JANET: <ajt@uk.ac.sari.rri>
Rowett Research Institute, | other: <ajt@rri.sari.ac.uk>
Greenburn Road, Bucksburn, | phone: +44 (0)224 712751
Aberdeen, AB2 9SB. UK. | fax: +44 (0)224 715349
Article 912 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!daresbury!daresbury!ajt
From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: Internode Inhibition
Message-ID: <1993Feb15.121615.15535@gserv1.dl.ac.uk>
Date: 15 Feb 93 12:09:47 GMT
References: <93213121851.MIN-LBAAa11812.bionet-news@uk.ac.daresbury>
Sender: list-admin@daresbury.ac.uk
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X-Newsreader: TIN [version 1.1 PL7]
Martin Hughes (hughes@jp.go.riken.rkna50) wrote:
: [...]
: Well, after having "lurked" on this group since its inception, I
: finally feel confident enough to comment on something - and
: what is more to the point, in direct reply to something by the
: Great Tony!!!
Arf, arf!
Seriously, though: this group is what we make it, so don't hesitate to
post interesting/informative/funny articles about your work.
I'm an agricultural botany graduate, and I got my PhD in 1981 after
working for five years in Terry Mansfield's lab at Lancaster (UK) on
the ion-transport mechanism in stomatal guard cells.
Several interesting post-docs later (one of which took me into image
analysis) I work on the relationship between anatomical features and
nutritive value in forages and crops used to feed ruminants.
: Firstly, to answer the guys question. Yes, GA biosynthesis inhibitors
: will work to decrease internode expansion. Uniconazole or
: Paclobutrazol will do the job for you. (Uniconazole is from a
: Japanese company-Sumi7 (a branch of Sumitomo - ICI sells
: Paclobutrazol, maybe under adifferent name). Can be applied
: by spray, to the roots, or to seeds (with germinated radicles). Seeds
: can be soaked for 1h in1mM (Uniconazole), followed by washing
: for 1h in water. For further info (esp. for Paclobutrazol) see Plant
: Physiol. (1992) 100: 651-654.
:
: And, as Tony said so will blue light.
:
: And this, I think is the interesting point. Several other things will
: also inhibit internode expansion. Recently Frances et al. (Plant Cell
: 4: 1519-1530) noted the similar photomorphogenic phenotypes
: of their light-independant developing pea mutant with previously
: reported heat-shocked seedlings - in that both had (amongst
: their characteristics) reduced internodes. Additionally, leaves
: underwent development. So, the question is, are all these causes
: (GA inhibitors, phytochrome transduction pathways and heat
: shock treatments) inter-related (and if so, to what level), or
: do they all serve to "trigger" the same (series of) responses
: in a trivial manner (after all, there are a limited number of things
: a plant can do in response to a stimulus!)? Any thoughts?
I don't believe blue light is always a 'trigger' - I believe blue light
may also act directly on the ion-transport mechanism itself.
For example, if only 1% of the blue photons incident on the surface of
a guard cell are intercepted by pigments in an electron-transport chain
then the ion-transport mechanism (K+ influx) responsible for stomatal
movements could be driven directly (Travis, A.J. and Mansfield, T.A.,
1981, Light saturation of stomatal opening on the adaxial and abaxial
epidermis of Commelina communis, Journal of Experimental Botany, 32,
1169-1179).
The common factor in many plant responses to shock/hormones/etc. is the
effect these agents have on the cell membrane and transport processes
associated with it. Low temperature treatment, for example, is known
to make cell membranes 'leaky' and so the cells lose electrolytes. I'm
interested to know if mechanical stress has a similar gross effect on
membrane integrity in relation to 'hardening' of seedlings by brushing
prior to transplanting or handling generally.
In particular I'm interested to know if the changes in the plasticity
of cell walls associated with 'shortening' (actually, it's a reduction
in growth - the internodes don't get shorter: they grow less!) is in
any way related to the polymerisation of lignin precursors? If it is,
then what is the underlying mechanism by which plants respond to
mechanical stimuli?
Tony.
--
Dr. A.J.Travis, | JANET: <ajt@uk.ac.sari.rri>
Rowett Research Institute, | other: <ajt@rri.sari.ac.uk>
Greenburn Road, Bucksburn, | phone: +44 (0)224 712751
Aberdeen, AB2 9SB. UK. | fax: +44 (0)224 715349
Article 912 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!daresbury!daresbury!ajt
From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: Internode Inhibition
Message-ID: <1993Feb15.121615.15535@gserv1.dl.ac.uk>
Date: 15 Feb 93 12:09:47 GMT
References: <93213121851.MIN-LBAAa11812.bionet-news@uk.ac.daresbury>
Sender: list-admin@daresbury.ac.uk
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Distribution: bionet
Organization: Rowett Research Institute
Lines: 77
Apparently-To: <plantbio@daresbury>
X-Newsreader: TIN [version 1.1 PL7]
Martin Hughes (hughes@jp.go.riken.rkna50) wrote:
: [...]
: Well, after having "lurked" on this group since its inception, I
: finally feel confident enough to comment on something - and
: what is more to the point, in direct reply to something by the
: Great Tony!!!
Arf, arf!
Seriously, though: this group is what we make it, so don't hesitate to
post interesting/informative/funny articles about your work.
I'm an agricultural botany graduate, and I got my PhD in 1981 after
working for five years in Terry Mansfield's lab at Lancaster (UK) on
the ion-transport mechanism in stomatal guard cells.
Several interesting post-docs later (one of which took me into image
analysis) I work on the relationship between anatomical features and
nutritive value in forages and crops used to feed ruminants.
: Firstly, to answer the guys question. Yes, GA biosynthesis inhibitors
: will work to decrease internode expansion. Uniconazole or
: Paclobutrazol will do the job for you. (Uniconazole is from a
: Japanese company-Sumi7 (a branch of Sumitomo - ICI sells
: Paclobutrazol, maybe under adifferent name). Can be applied
: by spray, to the roots, or to seeds (with germinated radicles). Seeds
: can be soaked for 1h in1mM (Uniconazole), followed by washing
: for 1h in water. For further info (esp. for Paclobutrazol) see Plant
: Physiol. (1992) 100: 651-654.
:
: And, as Tony said so will blue light.
:
: And this, I think is the interesting point. Several other things will
: also inhibit internode expansion. Recently Frances et al. (Plant Cell
: 4: 1519-1530) noted the similar photomorphogenic phenotypes
: of their light-independant developing pea mutant with previously
: reported heat-shocked seedlings - in that both had (amongst
: their characteristics) reduced internodes. Additionally, leaves
: underwent development. So, the question is, are all these causes
: (GA inhibitors, phytochrome transduction pathways and heat
: shock treatments) inter-related (and if so, to what level), or
: do they all serve to "trigger" the same (series of) responses
: in a trivial manner (after all, there are a limited number of things
: a plant can do in response to a stimulus!)? Any thoughts?
I don't believe blue light is always a 'trigger' - I believe blue light
may also act directly on the ion-transport mechanism itself.
For example, if only 1% of the blue photons incident on the surface of
a guard cell are intercepted by pigments in an electron-transport chain
then the ion-transport mechanism (K+ influx) responsible for stomatal
movements could be driven directly (Travis, A.J. and Mansfield, T.A.,
1981, Light saturation of stomatal opening on the adaxial and abaxial
epidermis of Commelina communis, Journal of Experimental Botany, 32,
1169-1179).
The common factor in many plant responses to shock/hormones/etc. is the
effect these agents have on the cell membrane and transport processes
associated with it. Low temperature treatment, for example, is known
to make cell membranes 'leaky' and so the cells lose electrolytes. I'm
interested to know if mechanical stress has a similar gross effect on
membrane integrity in relation to 'hardening' of seedlings by brushing
prior to transplanting or handling generally.
In particular I'm interested to know if the changes in the plasticity
of cell walls associated with 'shortening' (actually, it's a reduction
in growth - the internodes don't get shorter: they grow less!) is in
any way related to the polymerisation of lignin precursors? If it is,
then what is the underlying mechanism by which plants respond to
mechanical stimuli?
Tony.
--
Dr. A.J.Travis, | JANET: <ajt@uk.ac.sari.rri>
Rowett Research Institute, | other: <ajt@rri.sari.ac.uk>
Greenburn Road, Bucksburn, | phone: +44 (0)224 712751
Aberdeen, AB2 9SB. UK. | fax: +44 (0)224 715349
Article 913 of bionet.plants:
Path: samba!concert!gatech!rpi!uwm.edu!caen!batcomputer!cornell!newsstand.cit.cornell.edu!newsstand.cit.cornell.edu!usenet
From: Thomas Bjorkman <Thomas_Bjorkman@cornell.edu>
Newsgroups: bionet.plants
Subject: Re: Gibberelin inhibitors
Date: 15 Feb 1993 14:42:02 GMT
Organization: Cornell University
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X-XXDate: Mon, 15 Feb 93 09:42:26 GMT
In article <1993Feb15.113349.13686@gserv1.dl.ac.uk> Tony Travis,
ajt@rri.sari.ac.uk writes:
>Is the plant responding to a mechanical stimulus here, or is it eg.
>temperature (from the hands) or damage to the hairs on the surface and
>consequent changes is the thickness of the boundary layer ?
>
>Or, is it perhaps a chemical transferred from your green fingers ? ;-)
It is the mechanical stimulus. The most familiar example is probably the
curling of pea tendrils when they contact a support. However, stems are
also quite sensitive. Mark Jaffe and Cary Mitchell have been working
quietly on this for decades. A few years ago Janet Braam was identifying
genes turned on (in Arabidopsis) by spraying various compounds on the
plants. .She found the same genes turning on regardless waht she
sprayed--even water. It turned out to be the same mechanical stimulus.
Both the growth response and the mRNA accumulation are fast--a few
minutes.
Article 914 of bionet.plants:
Path: samba!concert!rock!stanford.edu!ames!saimiri.primate.wisc.edu!zaphod.mps.ohio-state.edu!uwm.edu!biosci!daresbury!daresbury!ajt
From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: Gibberelin inhibitors
Message-ID: <1993Feb15.173832.28738@gserv1.dl.ac.uk>
Date: 15 Feb 93 17:38:15 GMT
References: <93215154727.MIN-LHGAa09061.bionet-news@uk.ac.daresbury>
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X-Newsreader: TIN [version 1.1 PL7]
Thomas Bjorkman (Thomas_Bjorkman@edu.cornell) wrote:
: In article <1993Feb15.113349.13686@gserv1.dl.ac.uk> Tony Travis,
: ajt@rri.sari.ac.uk writes:
: >Is the plant responding to a mechanical stimulus here, or is it eg.
: >temperature (from the hands) or damage to the hairs on the surface and
: >consequent changes is the thickness of the boundary layer ?
: >
: >Or, is it perhaps a chemical transferred from your green fingers ? ;-)
:
: It is the mechanical stimulus. The most familiar example is probably the
: curling of pea tendrils when they contact a support. However, stems are
What is the nature of the plant's sensitivity to the mechanical stimulus?
Presumably growth on the contact side of the stem/tendril is inhibited?
: also quite sensitive. Mark Jaffe and Cary Mitchell have been working
: quietly on this for decades. A few years ago Janet Braam was identifying
: genes turned on (in Arabidopsis) by spraying various compounds on the
: plants. .She found the same genes turning on regardless waht she
: sprayed--even water. It turned out to be the same mechanical stimulus.
: Both the growth response and the mRNA accumulation are fast--a few
: minutes.
I remember the work on calmodulin you mentioned from a previous
discussion on bionet.plants about responses to mechanical stimuli. My
interest in this topic concerns the differences between weak-strawed
and stiff-strawed crop varieties in relation to yield, nutritional
value and susceptibility to lodging.
Do you think is would be a practical proposition to select varieties
that are able to _adapt_ to mechanical stress? If so, the partitioning
of assimilates into vascular tissue that I believe is an important
factor in reducing the yield of stiff-strawed varieties could be
avoided without the risk of losing the entire crop because of lodging
as often occurs in higher yielding weak-strawed varieties.
Tony.
--
Dr. A.J.Travis, | JANET: <ajt@uk.ac.sari.rri>
Rowett Research Institute, | other: <ajt@rri.sari.ac.uk>
Greenburn Road, Bucksburn, | phone: +44 (0)224 712751
Aberdeen, AB2 9SB. UK. | fax: +44 (0)224 715349
Article 915 of bionet.plants:
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From: johnreed@stein.u.washington.edu (John Reed)
Newsgroups: bionet.plants
Subject: Re: Help! Fungicide!
Date: 15 Feb 1993 18:39:56 GMT
Organization: University of Washington, Seattle
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References: <UfTYzO_00WBME1_0pr@andrew.cmu.edu>
NNTP-Posting-Host: stein.u.washington.edu
Try soaking them in diluted bleach for about five minutes before planting
them. You might also try autoclaving the soil, unless it is already sterile.
--------------------------------------------------------------------------
John Reed
College of Forest Resources, AR-10
University of Washington
Seattle, WA 98195
Internet: johnreed@u.washington.edu
--------------------------------------------------------------------------
Article 916 of bionet.plants:
Newsgroups: bionet.plants
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From: frist@ccu.umanitoba.ca ()
Subject: Re: Flavr-savr tomato
Message-ID: <C2I7Ev.2n5@ccu.umanitoba.ca>
Sender: news@ccu.umanitoba.ca
Nntp-Posting-Host: spock.cc.umanitoba.ca
Organization: University of Manitoba, Winnipeg, Manitoba, Canada
References: <9302101519.AA01814@popgen.biology.umt.edu>
Distribution: bionet
Date: Mon, 15 Feb 1993 18:59:18 GMT
Lines: 35
In article <9302101519.AA01814@popgen.biology.umt.edu> tmo@POPGEN.BIOLOGY.UMT.EDU (Thomas Mitchell-Olds) writes:
>
>Dear Netters:
>
>I want to lecture to my genetics class on Calgene's
>flavr-savr tomato. However, I can't remember the paper
>where I read the details. Can anyone suggest some useful
>references? Many thanks!
>
>Tom Mitchell-Olds
>University of Montana
>
>tmo@selway.umt.edu
I don't know whether they have ever formally published the details of their
work. However, I can cite a couple of recent articles on the subject:
Gray et al. (1992) Molecular biology of fruit ripening and its manipulation
with antisense genes. Plant. Mol. Biol. 19:69-87. (review article)
Tieman et al. (1992) An antisense pectin methylesterase gene alters pectin
chemistry and soluble solids in tomato fruit. Plant Cell 4:667-679.
Neither of these papers is from Calgene. As one might expect many groups
appear to be pursuing similar strategies.
===============================================================================
Brian Fristensky |
Department of Plant Science | Six days shall thou work,
University of Manitoba | and do all thou art able
Winnipeg, MB R3T 2N2 CANADA | The seventh the same
frist@ccu.umanitoba.ca | and clean out the stable
Office phone: 204-474-6085 |
FAX: 204-261-5732 |
===============================================================================
Article 917 of bionet.plants:
Newsgroups: bionet.plants
Path: samba!concert!gatech!rpi!utcsri!torn!nott!cunews!freenet.carleton.ca!Freenet.carleton.ca!aa365
From: aa365@Freenet.carleton.ca (Kenneth Werk)
Subject: Feeding pumpkins directly through phloem
Message-ID: <1993Feb15.192753.7502@freenet.carleton.ca>
Sender: news@freenet.carleton.ca (News Administrator)
Reply-To: aa365@Freenet.carleton.ca (Kenneth Werk)
Organization: The National Capital Freenet
Date: Mon, 15 Feb 1993 19:27:53 GMT
Lines: 13
Does anyone have information on whether it is possible to feed a pumpkin
fruit nutrients or sugars directly through its stem?
Thanks
Ken
Article 918 of bionet.plants:
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From: smith-una@yale.edu (Una Smith)
Newsgroups: bionet.plants
Subject: Re: is this group ill?
Followup-To: bionet.plants
Date: 15 Feb 1993 15:40:16 -0500
Organization: Yale University Science & Engineering UNIX(tm), New Haven, CT 06520-2158
Lines: 36
Distribution: bionet
Message-ID: <1lov3gINNjml@MINERVA.CIS.YALE.EDU>
References: <9324235932.MIN-LVGBa03968.bionet-news@uk.ac.daresbury> <1993Feb12.140921.14630@gserv1.dl.ac.uk>
NNTP-Posting-Host: minerva.cis.yale.edu
Summary: Do you mean there isn't enough traffic for you?
Euan R. Taylor (etaylor@ca.umanitoba.ccu) wrote:
>: This newsgroup seems to be in very poor health, are plant scientists
>: allergic to computers? or are there just not many of us around?
There are quite a few alternatives: the sci.bio newsgroup has been
unusually interesting lately, and there are various mailing lists,
particularly TAXACOM and PHOTOSYN. And both of those lists have
personal e-mail directories, which encourages biologists to write
to one another directly. Also, the ECOLOG-L mailing list has about
800 subscribers, according to the list owner, and I would guess that
more than half of those are plant ecologists.
ajt@rri.sari.ac.uk writes:
>According to the arbitron summary posted recently by Una Smith in
>bionet.general 175 people were caught actually reading bionet.plants
>out of an estimated 6600 who are suspected of doing so:
First off, I'd say ignore the estimated total readership. For various
reasons it is likely to be way off. The arbitron system reports data
only for those sites where someone bothers to run the reporting program,
so there are big distributional biases and a lot of error. The number
of people "caught" may well include those unfortunate novices who use
a Usenet reader configured to automatically subscribe to *all* newsgroups
and who get confused and discouraged the first time and never look at
Usenet again.
On the other hand, these figures do not take into account the number
of e-mail subscribers to bionet.plants.
--
Una Smith Biology Department smith-una@yale.edu
Yale University
New Haven, CT 06511
Article 919 of bionet.plants:
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From: Thomas Bjorkman <Thomas_Bjorkman@cornell.edu>
Newsgroups: bionet.plants
Subject: Re: Internode inhibition
Date: 15 Feb 1993 20:48:47 GMT
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References: <1993Feb15.173832.28738@gserv1.dl.ac.uk>
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X-UserAgent: Nuntius v1.1.1d7
X-XXDate: Mon, 15 Feb 93 15:48:48 GMT
In article <1993Feb15.173832.28738@gserv1.dl.ac.uk> Tony Travis,
ajt@rri.sari.ac.uk writes:
>My interest in this topic concerns the differences between weak-strawed
>and stiff-strawed crop varieties in relation to yield, nutritional
>value and susceptibility to lodging.
>
>Do you think is would be a practical proposition to select varieties
>that are able to _adapt_ to mechanical stress? If so, the partitioning
>of assimilates into vascular tissue that I believe is an important
>factor in reducing the yield of stiff-strawed varieties could be
>avoided without the risk of losing the entire crop because of lodging
>as often occurs in higher yielding weak-strawed varieties.
The pea tendrils curve the same way whatever the direction of the
stimulus--it is a nastic movement. The curvatrue is set in the
structure of the tissue, the mechanical stimulus triggers it but provides
no directional information.
Regarding lodging in grains, I am not sure that the mechanical adaptation
would be effective. The stiffening would have to occur suring stem
elongation to accomodate a stress occurring much later during seed fill.
Therefore the plant would have to make the stem stiff enough for some
future condition, and one might as well put it in the constitutive
program. Having the growing point at the bottom could be a problem, but
I wonder aht would happen if one were to start flexing the stem a little
each day starting at the boot stage. Seems easy enough to try.
Now that I've shown how little I appreciate the subtleties of your
research, I'll tell you about a similar case that does seem to work. I
am working with tomato transplants that are grown about 10 mm on center.
They get crowded and elongate for the usual reasons. The stems are not
very strong since they are supporting eachother, so that on transplanting
in the field, they do break off fairly easily. Stroking the canopy slows
the growth by about 20% and makes the stems somewhat tougher. The stems
are also slightly thinner and the leaf area is smaller than the controls.
However, putting up an impediment for the plants to push against for a
few hours a day makes the stems tougher and thicker without reducing the
leaf area. Apparently the stimuli are interpreted differently.
One question I am actually doing research on is how the tomato interprets
different kinds of petting. :-). If only William Proxmire were still in
the Senate, I'd be a shoo-in for the Golden Fleece award--even though
this is a money issue for on American industry.
Article 920 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!usenet.ins.cwru.edu!howland.reston.ans.net!wupost!uwm.edu!biosci!PEARL.TUFTS.EDU!GELLMORE
From: GELLMORE@PEARL.TUFTS.EDU (BIOHEAD)
Newsgroups: bionet.plants
Subject: Pachy-pumpkins
Message-ID: <01GURAP8RNRK8WWSO9@PEARL.TUFTS.EDU>
Date: 15 Feb 93 20:58:00 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 17
Ken, feeding pumpkins is a local pastime around northern suburbs of Boston.
Every October, there are "hefty" prizes awarded at the Topsfield Fair
to the heaviest pumpkin to weigh in. Last year's winner weighed more
than 630 lbs!!
I have talked with friends of people who nurture these pumpkins, and have
been told that the fruit are fed MILK into their pedicels as they grow.
I have not seen this done, just heard about it 2nd hand, but on several
occasions. It may be a bucolic ruse, or in fact a viable practice.
Any other State Fair fans heard about this botanical analog to foie-gras?
George Ellmroe
Ellmore
Biology Dept.
Tufts Univ.
Medford MA
Article 921 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!spool.mu.edu!howland.reston.ans.net!wupost!uwm.edu!biosci!daresbury!daresbury!ajt
From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: is this group ill?
Message-ID: <1993Feb15.235759.13065@gserv1.dl.ac.uk>
Date: 15 Feb 93 23:56:40 GMT
References: <93215204733.MIN-LLIAa09061.bionet-news@uk.ac.daresbury>
Sender: list-admin@daresbury.ac.uk
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Apparently-To: plantbio@daresbury
X-Newsreader: TIN [version 1.1 PL7]
Una Smith (smith-una@edu.yale) wrote:
: [...]
: ajt@rri.sari.ac.uk writes:
:
: >According to the arbitron summary posted recently by Una Smith in
: >bionet.general 175 people were caught actually reading bionet.plants
: >out of an estimated 6600 who are suspected of doing so:
:
: First off, I'd say ignore the estimated total readership. For various
: reasons it is likely to be way off. The arbitron system reports data
: [...]
I thought the sarcastic tone of my message was self-evident, Una ;-(
Yes, I agree arbitron results are misleading: but you posted them and I
simply quoted what was of interest to this group. I read this group by
email and I'm sure I am not alone ...
What was your intention in posting the arbitron ratings to
bionet.general and then demolishing my (light hearted) use of them?
Tony.
--
Dr. A.J.Travis, | JANET: <ajt@uk.ac.sari.rri>
Rowett Research Institute, | other: <ajt@rri.sari.ac.uk>
Greenburn Road, Bucksburn, | phone: +44 (0)224 712751
Aberdeen, AB2 9SB. UK. | fax: +44 (0)224 715349
Article 918 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!usenet.ins.cwru.edu!howland.reston.ans.net!bogus.sura.net!darwin.sura.net!newsserver.jvnc.net!yale.edu!not-for-mail
From: smith-una@yale.edu (Una Smith)
Newsgroups: bionet.plants
Subject: Re: is this group ill?
Followup-To: bionet.plants
Date: 15 Feb 1993 15:40:16 -0500
Organization: Yale University Science & Engineering UNIX(tm), New Haven, CT 06520-2158
Lines: 36
Distribution: bionet
Message-ID: <1lov3gINNjml@MINERVA.CIS.YALE.EDU>
References: <9324235932.MIN-LVGBa03968.bionet-news@uk.ac.daresbury> <1993Feb12.140921.14630@gserv1.dl.ac.uk>
NNTP-Posting-Host: minerva.cis.yale.edu
Summary: Do you mean there isn't enough traffic for you?
Euan R. Taylor (etaylor@ca.umanitoba.ccu) wrote:
>: This newsgroup seems to be in very poor health, are plant scientists
>: allergic to computers? or are there just not many of us around?
There are quite a few alternatives: the sci.bio newsgroup has been
unusually interesting lately, and there are various mailing lists,
particularly TAXACOM and PHOTOSYN. And both of those lists have
personal e-mail directories, which encourages biologists to write
to one another directly. Also, the ECOLOG-L mailing list has about
800 subscribers, according to the list owner, and I would guess that
more than half of those are plant ecologists.
ajt@rri.sari.ac.uk writes:
>According to the arbitron summary posted recently by Una Smith in
>bionet.general 175 people were caught actually reading bionet.plants
>out of an estimated 6600 who are suspected of doing so:
First off, I'd say ignore the estimated total readership. For various
reasons it is likely to be way off. The arbitron system reports data
only for those sites where someone bothers to run the reporting program,
so there are big distributional biases and a lot of error. The number
of people "caught" may well include those unfortunate novices who use
a Usenet reader configured to automatically subscribe to *all* newsgroups
and who get confused and discouraged the first time and never look at
Usenet again.
On the other hand, these figures do not take into account the number
of e-mail subscribers to bionet.plants.
--
Una Smith Biology Department smith-una@yale.edu
Yale University
New Haven, CT 06511
Article 922 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!usenet.ins.cwru.edu!howland.reston.ans.net!zaphod.mps.ohio-state.edu!wupost!uunet!biosci!CLVAX1.CL.MSU.EDU!preissj
From: preissj@CLVAX1.CL.MSU.EDU ("J Preiss--Seq Anal")
Newsgroups: bionet.plants
Subject: re Help Fungus :-(
Message-ID: <9302160320.AA18750@net.bio.net>
Date: 16 Feb 93 03:14:00 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 28
Hi Ian
Well, my favorite remedy is Captan, but many people like Thyram
these days. I always dust all my seed samples with dry captan. Just dump
enough into the pa
enough into the envelope so that after shaking things aroung (in a well
ventilated space) there is a small residual that drops to the bottom of
the packet. In addition, if more is required, I use a soil drench (mixed
according to the directions). It is important to use the drench as a
pre-emptive measure when you know it will be needed. I rarely have better
than a 10% survival rate after I see symptoms. The reason I prefer Captan
is because you can use it as a soil drench as well as a seed treatment.
Thyram is only a seed treatment, and then you need to buy the Captan for
a soil drench also. Hope this helps.
Lenny Bloksberg
PreissJ@clvax1.cl.msu.edu
Michigan State University
ps To give you an idea of the intense need for control of fungus here in
Lansing MI, I will tell you a common expression that the locals use here.
"It will be a sunny day in Lansing before I do that again" :-}
Good Luck ---<--@
Article 923 of bionet.plants:
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From: smith-una@yale.edu (Una Smith)
Newsgroups: bionet.plants
Subject: Re: is this group ill?
Date: 15 Feb 1993 22:58:14 -0500
Organization: Yale University Science & Engineering UNIX(tm), New Haven, CT 06520-2158
Lines: 46
Distribution: bionet
Message-ID: <1lpoomINNj0q@MINERVA.CIS.YALE.EDU>
References: <93215204733.MIN-LLIAa09061.bionet-news@uk.ac.daresbury> <1993Feb15.235759.13065@gserv1.dl.ac.uk>
NNTP-Posting-Host: minerva.cis.yale.edu
Tony Travis <ajt@rri.sari.ac.uk> wrote:
>: >According to the arbitron summary posted recently by Una Smith in
>: >bionet.general 175 people were caught actually reading bionet.plants
>: >out of an estimated 6600 who are suspected of doing so:
I replied:
>: First off, I'd say ignore the estimated total readership. For various
>: reasons it is likely to be way off. The arbitron system reports data
>: [...]
Tony replied back:
>I thought the sarcastic tone of my message was self-evident, Una ;-(
>[...]
>What was your intention in posting the arbitron ratings to
>bionet.general and then demolishing my (light hearted) use of them?
Tony, you're reading much more into this than I intended. Although
I caught (oops :-) your sarcasm, I thought you were being sarcastic
about "reading bionet.plants", not the number "6600", given that you
offered the statistic of 175 "actual" readers to the person who seems
to think the group is suffering from narcolepsy? (Isn't "asleep" a
nicer way of putting it than "dull"?) Anyway, I reported the arbitron
stats in bionet.general, but I neglected to mention the companion
report that discusses sources of error, so since you touched on the
issue, I thought it worth mentioning some of them. That's all!
I like bionet.plants, by the way. Perhaps you were miffed by the
list of alteratives to bionet.plants that I gave, which you edited
out of your reply? I should say I mentioned them as a rejoinder to
the original question about botanists not liking to use computers,
not as "better" alternatives to bionet.plants. There are lots of
us, but there are also lots of ways to spend any personal e-mail or
Usenet quota, and we can't all be active here. Subscribe to all
those mailing lists together, and you'll have more stuff in your
mailbox than you can stand to read!
--
Una Smith Biology Department smith-una@yale.edu
Yale University
New Haven, CT 06511
Article 924 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!spool.mu.edu!howland.reston.ans.net!wupost!uwm.edu!biosci!CLVAX1.CL.MSU.EDU!preissj
From: preissj@CLVAX1.CL.MSU.EDU ("J Preiss--Seq Anal")
Newsgroups: bionet.plants
Subject: re Flavr-savr tomato
Message-ID: <9302160444.AA21167@net.bio.net>
Date: 16 Feb 93 04:36:00 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 13
As I recall, the flavr-savr tomato was made by putting the polygalacturonase
gene into one of the RIN or NOR or NR ripening mutants. I think it was NR.
They used the PG gene from the paper by Della-Penna and Alexander PNAS 1986
I think. I could be wrong, but I have spoken to several people from Calgene,
and I know they told me that this is how they made some of the early varieties.
Hope this helps
Lenny Bloksberg
PreissJ@clvax1.cl.msu.edu
Article 925 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!howland.reston.ans.net!usc!sol.ctr.columbia.edu!The-Star.honeywell.com!umn.edu!msus1.msus.edu!krypton.mankato.msus.edu!lebowitz
Newsgroups: bionet.plants
Subject: agrobacterium pictures
Message-ID: <1993Feb16.092918.2458@msus1.msus.edu>
From: lebowitz@krypton.mankato.msus.edu (Robert J. Lebowitz)
Date: 16 Feb 93 09:29:17 -0600
Distribution: bionet
Organization: Mankato State University
Nntp-Posting-Host: krypton.mankato.msus.edu
Lines: 16
I'm in the finishing phases of writing a book on plant biotechnology.
One of the last details I have to deal with involves the illustrations
for the various chapters. I am presently looking for a nice, ugly crown
gall on any dicot plant to include in the book. I am also looking for a
nice picture of a typical wild-type Ti plasmid that identifies some of
the more important portions of the plasmid, such as the T-DNA, the
virulence genes region, the opine synthase and catabolism genes, etc.
If you have a stock drawing or photo of these, I'd appreciate a copy.
We'll acknowledge you under the illustration as the contributor in
return for your effort.
Thanks.... Rob
--
Robert J. Lebowitz Internet lebowitz@krypton.mankato.msus.edu
Mankato State University VOX (507) 389-2540
Mankato MN 56002-8400
Article 926 of bionet.plants:
Newsgroups: bionet.plants
Path: samba!concert!gatech!usenet.ins.cwru.edu!magnus.acs.ohio-state.edu!rgonzale
From: rgonzale@magnus.acs.ohio-state.edu (Rico A Gonzalez)
Subject: Whole Plant Research Equipment - What Do You Recommend?
Message-ID: <1993Feb16.161853.25069@magnus.acs.ohio-state.edu>
Sender: news@magnus.acs.ohio-state.edu
Nntp-Posting-Host: top.magnus.acs.ohio-state.edu
Organization: The Ohio State University
Date: Tue, 16 Feb 1993 16:18:53 GMT
Lines: 40
I am in the process of setting of a whole plant physiology lab and
could really use some input on equipment selection. I have had
some experience with certain types of equipment but would
appreciate comments and opinions on vendors and specific models.
Please reply to me directly (r) through email and THANKS, in
advance.
Here's what I am looking for:
Pressure Bomb - I have used the Model 3005 from Soilmoisture
Equipment. It is adequate and relatively
inexpensive. What else is available.
CO2 Analyzer - My experience is with an old ADC Machine,
Model LCA-2 with a data logger. This is a
very expensive piece of equipment and I would
like to know what my options are.
Control Equipment I have used Campbell Scientific as the basis
for all of my field control equipment.
Although the equipment is dependable, I find
the limited instruction set and control
outputs on the CR10 and the 21X to be a
negative. Does anyone have experience with
better equipment?
Image Analyzer - My research has been directed toward the
analysis of root area and length using the
Dias II by Decagon Devices Inc. Is there
other equipment which has more flexibility and
perhaps finer resolution?
By the way, I will gladly supply the details on any of the
equipment mentioned above to anyone interested. All replies are
greatly appreciated.
Rico Gonzalez (rgonzale@magnus.acs.ohio-state.edu)
Article 927 of bionet.plants:
Path: samba!concert!gatech!darwin.sura.net!haven.umd.edu!umd5!williams.smcm.edu!bwilliam
From: bwilliam@oyster.smcm.edu (Bill Williams)
Newsgroups: bionet.plants
Subject: Re: Continuous light, is it ok?
Message-ID: <18504@umd5.umd.edu>
Date: 16 Feb 93 17:35:39 GMT
References: <204@kixtal.UUCP>
Sender: news@umd5.umd.edu
Organization: St. Mary's College of Maryland
Lines: 19
X-UserAgent: Nuntius v1.1.1d17
X-XXMessage-ID: <A7A6910FC90101D2@williams.smcm.edu>
X-XXDate: Tue, 16 Feb 93 17:39:43 GMT
In article <204@kixtal.UUCP> Richard Soderberg, micjrs@mica.mic.ki.se
writes:
>Is it possible to make a general statement about the effects of
>*continous*
>light applied to indoor plants?
>My goal is to increase the volume of green leaves, not the protein
>contents etc.
>(I'm gonna look at my flowers, not eat them!)
In a word, no. Some plants seem to do just fine on a regime of
continuous light, while others (tomatoes come to mind) seem to have a
hard time of it in such a regime. Most plants in my experience are NOT
like tomatoes, and so the best guess is probably that it's all right.
Try it and watch 'em!
___________________________________
William E. Williams, bwilliam@oyster.smcm.edu
Divison of Natural Sciences and Mathematics
St. Mary's College of Maryland
St. Mary's City, MD 20686
Article 928 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!YOKO.RUTGERS.EDU!minnam
From: minnam@YOKO.RUTGERS.EDU (Minnam Sivananda)
Newsgroups: bionet.plants
Subject: Seventeenth Annual Homegardeners School
Message-ID: <Feb.15.14.42.07.1993.29240@yoko.rutgers.edu>
Date: 15 Feb 93 19:42:07 GMT
Sender: kristoff@net.bio.net
Followup-To: rec.gardens
Distribution: bionet
Organization: Rutgers Univ., New Brunswick, N.J.
Lines: 32
Seventeenth Annual Home Gardeners School
Spring Session Starts from Saturday March 27,1993
Sponsored by :
Rutgers-The State University of New Jersey
Cook College
Rutgers Cooperative extension
The Seventeenth Annual Spring Homegardeners School, scheduled for Saturday, March 27 , 1993 will be located in the Loree Building, Cook Campus, Rutgers University, New Brunswick, New Jersey. This Program is co-sponsored by Cook College Office of Continuin
g Professional Education and Rutgers Cooperative Extension.
Experienced gardners as well as beginner gardeners are encouraged to attend. Participants may choose among 24 classes and workshops, including 4 new sessions. New Topics are "Planting Unusual Shrubs & Trees for the Home Landscape", "Weeping Plants - A gal
lery of garden Gems", "Backyard Aquaculture", and "Grass seed Selection". Classes are offered for both the beginner to the advanced gardener.
Presenters include Rutgers Faculty as well as industry professionals.
Participants may enroll upto five classes. The registration fee is $18, regardless of the number of sessions you register for. A box lunch is available for an additional $6.
For more information or to register:
Send email to : Czesak@gandalf.rutgers.edu
or mail to: Office of Continuing Professional Education
P.O Box 231
New Brunswick NJ-08903-0231
or call : Jill Braun at (908)932-9271
Article 928 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!YOKO.RUTGERS.EDU!minnam
From: minnam@YOKO.RUTGERS.EDU (Minnam Sivananda)
Newsgroups: bionet.plants
Subject: Seventeenth Annual Homegardeners School
Message-ID: <Feb.15.14.42.07.1993.29240@yoko.rutgers.edu>
Date: 15 Feb 93 19:42:07 GMT
Sender: kristoff@net.bio.net
Followup-To: rec.gardens
Distribution: bionet
Organization: Rutgers Univ., New Brunswick, N.J.
Lines: 32
Seventeenth Annual Home Gardeners School
Spring Session Starts from Saturday March 27,1993
Sponsored by :
Rutgers-The State University of New Jersey
Cook College
Rutgers Cooperative extension
The Seventeenth Annual Spring Homegardeners School, scheduled for Saturday, March 27 , 1993 will be located in the Loree Building, Cook Campus, Rutgers University, New Brunswick, New Jersey. This Program is co-sponsored by Cook College Office of Continuin
g Professional Education and Rutgers Cooperative Extension.
Experienced gardners as well as beginner gardeners are encouraged to attend. Participants may choose among 24 classes and workshops, including 4 new sessions. New Topics are "Planting Unusual Shrubs & Trees for the Home Landscape", "Weeping Plants - A gal
lery of garden Gems", "Backyard Aquaculture", and "Grass seed Selection". Classes are offered for both the beginner to the advanced gardener.
Presenters include Rutgers Faculty as well as industry professionals.
Participants may enroll upto five classes. The registration fee is $18, regardless of the number of sessions you register for. A box lunch is available for an additional $6.
For more information or to register:
Send email to : Czesak@gandalf.rutgers.edu
or mail to: Office of Continuing Professional Education
P.O Box 231
New Brunswick NJ-08903-0231
or call : Jill Braun at (908)932-9271
Article 929 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!daresbury!daresbury!ajt
From: ajt@rri.sari.ac.uk (Tony Travis)
Newsgroups: bionet.plants
Subject: Re: is this group ill?
Message-ID: <1993Feb16.230535.23036@gserv1.dl.ac.uk>
Date: 16 Feb 93 22:51:25 GMT
References: <93216040935.MIN-LTNAa09061.bionet-news@uk.ac.daresbury>
Sender: list-admin@daresbury.ac.uk
Reply-To: ajt@rri.sari.ac.uk
Distribution: bionet
Organization: Rowett Research Institute
Lines: 41
Apparently-To: plantbio@daresbury
X-Newsreader: TIN [version 1.1 PL7]
Una Smith (smith-una@edu.yale) wrote:
: [...]
: I like bionet.plants, by the way. Perhaps you were miffed by the
: list of alteratives to bionet.plants that I gave, which you edited
: out of your reply? I should say I mentioned them as a rejoinder to
I'm glad you like it Una and I'm not easily miffed ;-)
I'm interested in any other botanical email/news groups that are
available and I didn't 'edit out' the alternatives you gave, I just put
the arbitron result in because it was of interest and relevant to
Jonathan's remarks about the PHOTOSYN subscribers reluctance to
subscribe to an 'active' group ...
: the original question about botanists not liking to use computers,
: not as "better" alternatives to bionet.plants. There are lots of
: us, but there are also lots of ways to spend any personal e-mail or
: Usenet quota, and we can't all be active here. Subscribe to all
: those mailing lists together, and you'll have more stuff in your
: mailbox than you can stand to read!
I really hate to drone on about this on bionet.plants again, but if you
pool your resources and subscribe _one_ user to the lists you are
interested in you can share them with all the other users at your site
*without* filling your mailbox or using up your quota!
Either use public mail folders, or use mail2news to post the articles
locally. You don't have to be a sysadm to do this (but it helps).
I'm reading this on my PC at home, in the evening, and you are right I
would have more stuff than I could stand to read *if* it was in my
mailbox. But, it isn't - it is in a shared news spool directory and I'm
reading it with "tin". The only user here who subscribes to BIOSCI is
news@rri.sari.ac.uk. Everyone else reads it selectively as news.
Tony.
--
Dr. A.J.Travis, | JANET: <ajt@uk.ac.sari.rri>
Rowett Research Institute, | other: <ajt@rri.sari.ac.uk>
Greenburn Road, Bucksburn, | phone: +44 (0)224 712751
Aberdeen, AB2 9SB. UK. | fax: +44 (0)224 715349
Article 930 of bionet.plants:
Path: samba!concert!rock!stanford.edu!agate!biosci!MAIL.SAS.UPENN.EDU!spoethig
From: spoethig@MAIL.SAS.UPENN.EDU ("R. Scott Poethig")
Newsgroups: bionet.plants
Subject: Aphid-supporting maize mutant?
Message-ID: <9302162317.AA19896@mail.sas.upenn.edu>
Date: 16 Feb 93 23:17:25 GMT
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 19
A little while back someone mentioned in a note to the newsgroup that he thought
he may have found a maize mutant that supports large populations of aphids.
I would like to get in touch with him, but unfortunately, we did not keep the
note, and I could not find it in the newswatcher any more.
Can anybody help? Thanks!
Hilli Passas
EMAIL: SPOETHIG@mail.sas.upenn.edu
Plant Science Institute
University of Pennsylvania
PA 19104-6018
Tel: 215-898-8916
Article 931 of bionet.plants:
Path: samba!concert!rock!stanford.edu!ames!agate!howland.reston.ans.net!wupost!uwm.edu!biosci!NETCOM.COM!wick
From: wick@NETCOM.COM (Potter Wickware)
Newsgroups: bionet.plants
Subject: Re: re Flavr-savr tomato
Message-ID: <Pine.3.05.9302161711.B26638-a100000@netcom2>
Date: 17 Feb 93 01:37:15 GMT
References: <9302160444.AA21167@net.bio.net>
Sender: daemon@net.bio.net
Distribution: bionet
Lines: 25
Hello Plant People --
A couple of days ago someone posted two citations about fruit
ripening and PGU. I meant to save them but threw them away instead. Did
anyone save them? IF so could you forward them to me? Much obliged.
Potter Wickware, Oakland, CA wick@netcom.com
On 15 Feb 1993, J Preiss--Seq Anal wrote:
>
> As I recall, the flavr-savr tomato was made by putting the polygalacturonase
> gene into one of the RIN or NOR or NR ripening mutants. I think it was NR.
> They used the PG gene from the paper by Della-Penna and Alexander PNAS 1986
> I think. I could be wrong, but I have spoken to several people from Calgene,
> and I know they told me that this is how they made some of the early varieties.
>
> Hope this helps
>
> Lenny Bloksberg
> PreissJ@clvax1.cl.msu.edu
>
>
Article 931 of bionet.plants:
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From: wick@NETCOM.COM (Potter Wickware)
Newsgroups: bionet.plants
Subject: Re: re Flavr-savr tomato
Message-ID: <Pine.3.05.9302161711.B26638-a100000@netcom2>
Date: 17 Feb 93 01:37:15 GMT
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Hello Plant People --
A couple of days ago someone posted two citations about fruit
ripening and PGU. I meant to save them but threw them away instead. Did
anyone save them? IF so could you forward them to me? Much obliged.
Potter Wickware, Oakland, CA wick@netcom.com
On 15 Feb 1993, J Preiss--Seq Anal wrote:
>
> As I recall, the flavr-savr tomato was made by putting the polygalacturonase
> gene into one of the RIN or NOR or NR ripening mutants. I think it was NR.
> They used the PG gene from the paper by Della-Penna and Alexander PNAS 1986
> I think. I could be wrong, but I have spoken to several people from Calgene,
> and I know they told me that this is how they made some of the early varieties.
>
> Hope this helps
>
> Lenny Bloksberg
> PreissJ@clvax1.cl.msu.edu
>
>
Article 932 of bionet.plants:
Xref: samba soc.college.gradinfo:2805 bionet.biology.tropical:159 bionet.plants:932
Newsgroups: soc.college.gradinfo,bionet.biology.tropical,bionet.plants
Path: samba!concert!gatech!udel!bogus.sura.net!darwin.sura.net!newsserver.jvnc.net!princeton!phoenix.Princeton.EDU!sgmccook
From: sgmccook@phoenix.Princeton.EDU (Stuart George Mccook)
Subject: Looking for us grad schools in paleoecology
Message-ID: <1993Feb16.223512.6549@Princeton.EDU>
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A Venzuelan friend of mine is interested in doing graduate work in
paleoecology in the United States. If anyone out there has information
on grad programs in this field, please let me know. If you have any
written materials or information, my address here is
Stuart McCook
Instituto Venezolano De Investigaciones Cientificas
Departamento de Estudio de la Ciencia
Apartado 21827
Caracas 1020-A
Venezuela.
Thanks!
Stuart.
Article 1009 of bionet.plants:
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From: vbell@mail.sas.upenn.edu (Vance Bell)
Newsgroups: bionet.plants
Subject: The Use of Plants to Treat Wastewater
Message-ID: <114049@netnews.upenn.edu>
Date: 16 Mar 93 20:02:59 GMT
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I am greatly interested in the possiblity of using plants, and/or entire
ecosystems to treat wastewaste. I understand that work on this has been
attempted in Northern California; Sugarbush, Vermont; Louisiana; Cape May,
Massachussetts, and possibly other places.
I would greatly appreciate any references on this type of research.
The main source I presently have is an article on the New Alchemy
Institute, in Massachussetts, and a man named Jodd Todd who has apparently
founded a company to promote the "technology."
Citations of reference books on plant abilities to sequester metals, or
treat water would also be helpful.
Thank You.
Vance Bell: vbell@mail.sas.upenn.edu