From owner-maize@hgmp.mrc.ac.uk Wed May 1 03:12:50 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 0832A17BB6 for ; Wed, 1 May 2002 03:12:48 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 29DA017BB1 for ; Wed, 1 May 2002 03:12:45 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id DA8A417BB6; Wed, 1 May 2002 03:12:43 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: CoeE@missouri.edu (Ed Coe) Subject: National Academy members Date: 1 May 2002 02:03:29 +0100 Organization: USDA-ARS Message-ID: <3CCF3ED4.4427E272@missouri.edu> Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk Maize netters, Note newly elected members of the National Academy of Sciences! Vicki Chandler John Doebley Don Duvick Outstanding. Ed From owner-maize@hgmp.mrc.ac.uk Sun May 5 17:53:19 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 446B417B6A for ; Sun, 5 May 2002 17:53:16 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 0D79317AF6 for ; Sun, 5 May 2002 17:53:09 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id 921B217B52; Sun, 5 May 2002 17:53:07 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: mgiudice2001@yahoo.com (Marcos) Subject: ipt gene Date: 5 May 2002 05:33:33 +0100 Organization: http://groups.google.com/ Message-ID: <71801ebf.0205042033.41e408fd@posting.google.com> Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk Greetings I would appreciate information about ipt gene expressing in maize endosperm. I'm interested in transgenic plants overexpressing cytokinin. Thanks From owner-maize@hgmp.mrc.ac.uk Tue May 14 15:44:58 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 602DC17B82 for ; Tue, 14 May 2002 15:44:57 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 0ADD917AA5 for ; Tue, 14 May 2002 15:44:52 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id 4D49E17B82; Tue, 14 May 2002 15:44:51 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: jacksond@cshl.org (David Jackson) Subject: Research positions Date: 14 May 2002 15:29:32 +0100 Organization: CSHL Message-ID: Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk Two positions are currently available in my lab to study plant developmental genetics in model species, including maize and Arabidopsis. 1. Summer Undergraduate Internship. An NSF funded "REU" (research experience for undergraduates) 10- week intern position is available in the lab. of Dr. Dave Jackson at Cold Spring Harbor. The research will combine genetics, molecular and cell biological research, focusing on cereal crop plants. Applicants should ideally have some lab experience though enthusiasm and ability to work in a team are the most important criteria. Minority students are especially encouraged to apply. Dates are flexible but should include July-August. 2. Laboratory Technician. A full time lab tech position is available. The research will combine cellular and genetic techniques to understand molecular aspects of plant development, focusing on stem cell specification and signaling. Prior experience in molecular biology and genetics are preferred; enthusiasm and ability to work in a team is required. Please send application letter and CV to Dr. Dave Jackson, CSHL, 1 Bungtown Rd., Cold Spring Harbor, NY 11724, or email jacksond@cshl.org for additional details. Also see http://www.cshl.org/public/SCIENCE/jackson.html. Recent Publications: Lucas, W.J., Bouche-Pillon, S., Jackson, D., Nguyen, L., Baker, L., Ding, B., and Hake, S. (1995). Selective Trafficking of KNOTTED1 and its mRNA Through Plasmodesmata. Science 270: 1980-1983. Jackson, D. and Hake, S. (1999). Control of Phyllotaxy in Maize by the ABPHYL1 Gene. Development 126: 315-323. Jackson, D. (2000). Opening up the communication channels: recent insights into plasmodesmal function. Current Opinions in Plant Biology 3: 394-399. Shiobara, F.T., Yuan, Z., Hake, S. and Jackson, D. (2001). The fasciated ear2 gene encodes a leucine rich repeat receptor like protein that regulates shoot meristem proliferation in maize. Genes and Development 15: 2755-2766. Kim, J.Y., Yuan, Z., Cilia, M, Khalfan, Z. and Jackson, D. (2002). Intercellular Trafficking Of A KNOTTED1 Green Fluorescent Protein Fusion in the leaf and shoot meristem of Arabidopsis. PNAS 99: 4103-4108. CSHL is a research and educational institution. The Laboratory has research programs focusing on cancer, neurobiology, plant genetics, genomics and bio-informatics. CSHL is an equal opportunities employer. From owner-maize@hgmp.mrc.ac.uk Tue May 14 16:42:22 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 8494417B2D for ; Tue, 14 May 2002 16:42:20 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 7925217B3B for ; Tue, 14 May 2002 16:42:18 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id B595717B2D; Tue, 14 May 2002 16:42:16 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: jacksond@cshl.org (David Jackson) Subject: Postdoc position in maize developmental genetics Date: 14 May 2002 16:29:38 +0100 Organization: CSHL Message-ID: Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk POSTDOC POSITION IN PLANT DEVELOPMENTAL GENETICS. A position is open to study the genetics and molecular aspects of inflorescence development in maize. We have recently cloned the fasciated ear2 (fea2) gene, a leucine rich repeat receptor-like protein that functions to restrict meristem proliferation in the maize inflorescence (Shiobara et al., 2001). The image below in an SEM of the immature fea2 inflorescence, showing extreme proliferation of the apical meristem. Possible projects include the biochemical characterization of the fea2 gene product, structure-function analysis and investigating the possible link between fea2 and a Quantitative Trait Locus for seed row number. The position is funded by the USDA; applicants will also be required to apply for independent fellowship support. Please send application letter, CV and names and contact information of three referees to Dr. Dave Jackson, CSHL, 1 Bungtown Rd., Cold Spring Harbor, NY 11724, or email jacksond@cshl.org. Also see http://www.cshl.org/public/SCIENCE/jackson.html. Recent Publications: Lucas, W.J., Bouche-Pillon, S., Jackson, D., Nguyen, L., Baker, L., Ding, B., and Hake, S. (1995). Selective Trafficking of KNOTTED1 and its mRNA Through Plasmodesmata. Science 270: 1980-1983. Jackson, D. and Hake, S. (1999). Control of Phyllotaxy in Maize by the ABPHYL1 Gene. Development 126: 315-323. Jackson, D. (2000). Opening up the communication channels: recent insights into plasmodesmal function. Current Opinions in Plant Biology 3: 394-399. Shiobara, F.T., Yuan, Z., Hake, S. and Jackson, D. (2001). The fasciated ear2 gene encodes a leucine rich repeat receptor like protein that regulates shoot meristem proliferation in maize. Genes and Development 15: 2755-2766. Kim, J.Y., Yuan, Z., Cilia, M, Khalfan, Z. and Jackson, D. (2002). Intercellular Trafficking Of A KNOTTED1 Green Fluorescent Protein Fusion in the leaf and shoot meristem of Arabidopsis. PNAS 99: 4103-4108. CSHL is a research and educational institution. The Laboratory has research programs focusing on cancer, neurobiology, plant genetics, genomics and bio-informatics. CSHL is an equal opportunities employer. From owner-maize@hgmp.mrc.ac.uk Tue May 14 21:13:54 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 9762F17BC1 for ; Tue, 14 May 2002 21:13:52 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 10A6517BA3 for ; Tue, 14 May 2002 21:13:49 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id 8874B17BBE; Tue, 14 May 2002 21:13:47 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: parrylong2002@hotmail.com ("Parry Long") Subject: Effect of pollen from waxy or sweet maize on grain yield! Date: 14 May 2002 20:56:07 +0100 Organization: none Message-ID: Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk Greetings! I have selected some wonderful R-line for male sterile lines from sweet or waxy maize (Ref. my short communication in the latest Maydica). I would appreciate any information (grey or published) on the such kinds of pollen effect on quantity (1000-grain weight) and quality of hybrid grain. Thanks! From owner-maize@hgmp.mrc.ac.uk Thu May 16 16:39:35 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 7CBEA17B27 for ; Thu, 16 May 2002 16:39:32 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id C00FA17B67 for ; Thu, 16 May 2002 16:39:24 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id 9DE0A17B0F; Thu, 16 May 2002 16:39:19 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: MentalCaviar@aol.com Subject: "Ear" of corn etymology Date: 16 May 2002 16:24:56 +0100 Organization: none Message-ID: Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk I am writing on behalf a 5th grade class in San Diego. The question came up, "Why do they call it an Ear of Corn?" I have yet to find this answer. If anyone can satisfy the curiousity of these eager minds, I would love an email to MentalCaviar@aol.com. Thanks in advance. From owner-maize@hgmp.mrc.ac.uk Thu May 16 22:37:33 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 2346F17AB5 for ; Thu, 16 May 2002 22:37:31 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 0CF6C17B45 for ; Thu, 16 May 2002 22:37:23 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id A874417B1A; Thu, 16 May 2002 22:37:20 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: Leszek@missouri.edu ("Vincent, Leszek") Subject: RE: "Ear" of corn etymology Date: 16 May 2002 22:22:43 +0100 Organization: University of Missouri-Columbia Message-ID: Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk Dear MentalCaviar & 5th graders From the botanical (plant science) perspective the word "ear" is a general term for a cereal inflorescence which is compact or a spike. But what's an 'inflorescence'? An inflorescence is the flowering part of a plant; a flower cluster; the arrangement of the flowers on the flowering axis of a plant. What's a 'spike'? A spike is an unbranched, elongated inflorescence with sessile (un-stalked) or subsessile flowers or spikelets (as in grasses e.g. corn/maize) maturing from the bottom of the inflorescence upwards (as in corn). [Not to be confused with 'spikelet' which is a specific term for the basic arrangement of the floret(s) in grass inflorescences] What's a 'cereal'? A cereal is any grass species that produces grain which is used for food. Note that the 'ear of corn' is functionally female (meaning that rudimentary male flowers in the ear abort early on in the development of the ear - only the female flowers reach maturity). The functionally female ear in maize (corn) has protruding stigmas described as 'silks'. The silks are the long thread-like structures which protrude out of the top of an ear of corn. Seeds (technically called caryopses) removed from the maize ear expose the axis of the ear called a 'cob'. So next time you eat 'corn on the cob' you're munching the 'seeds' off the cob which is the central axis of the female inflorescence of corn (what a 'mouthful'). I hope I haven't stretched the curiosity of your young students too far. References used primarily: Chapman, G.P. 1996. The Biology of Grasses. CAB International, NY. (ISBN: 0851991114); Harris, J.G. & M.W. Harris 1994. Plant Identification Terminology: An Illustrated Glossary. Spring Lake Publishing, Spring Lake, Utah. (ISBN: 096402215X) Want to know more about corn/maize (scientifically called Zea mays) then checkout the Interactive Maize Plant (IMP) at: http://www.agron.missouri.edu/IMP/frames_imp2.html (under development). Sincerely, - Leszek Vincent xoxoxoxoxoxoxoxoxoxoxoxoxoxoxox P. Leszek D. Vincent Ph.D., FLS Plant Science Unit, Dept. of Agronomy, 209 Curtis Hall, University of Missouri-Columbia, Columbia, MO 65211-7020, USA. Ph: (573) 884-3716 (Agronomy), Fax:(573) 884-7850; Ph/Fax (Home): (573) 441-1228; Email: Leszek@missouri.edu Plant Systematist on the Maize Mapping Project - NSF award 9872655 - (http://www.maizemap.org/ and http://www.agron.missouri.edu/) xoxoxoxoxoxoxoxoxoxoxoxoxoxoxox > -----Original Message----- > From: MentalCaviar@aol.com [mailto:MentalCaviar@aol.com] > Sent: Thursday, May 16, 2002 10:25 AM > To: maize@net.bio.net > Subject: "Ear" of corn etymology > > > I am writing on behalf a 5th grade class in San Diego. The question > came up, "Why do they call it an Ear of Corn?" I have yet to find > this answer. If anyone can satisfy the curiousity of these eager > minds, I would love an email to MentalCaviar@aol.com. > > Thanks in advance. > > From owner-maize@hgmp.mrc.ac.uk Fri May 17 16:01:18 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 37A6117B9B for ; Fri, 17 May 2002 16:01:16 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 59AA717B9E for ; Fri, 17 May 2002 16:01:10 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id 75A1C17B9B; Fri, 17 May 2002 16:01:07 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: atc12@mole.bio.cam.ac.uk (Adelaide T C Carpenter) Reply-To: MentalCaviar@aol.com, maize@net.bio.net Subject: Re: "Ear" of corn etymology Date: 17 May 2002 15:48:02 +0100 Organization: University of Cambridge Message-ID: References: Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk That was a good answer, Leszek, but I think the question was "Why is the word 'ear' used for this type of inflorescence?" (as opposed to eye or nose or throat, for example). I confess I do not know the answer to that question but I do know why the word "corn" is applied to the kernels. "Corn" used to be descriptive of size (and probably of shape too); anything the size of a grain of wheat was corn-sized, which is why wheat is also called "corn" (in the UK). I deduce that the Indian maize being described as "corn" by the early Europeans was a tad smaller in the kernel than modern maize. Anyway, this older meaning of the word "corn" can still be seen in e.g. the name "corned beef"; "corn" here describes the size of the salt crystals used in the curing -- neither maize nor wheat have anything to do with it! Adelaide From owner-maize@hgmp.mrc.ac.uk Fri May 17 16:30:54 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id F2C9E17B99 for ; Fri, 17 May 2002 16:30:52 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id A8D3517BAB for ; Fri, 17 May 2002 16:30:47 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id E1CEE17BA5; Fri, 17 May 2002 16:30:45 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: wftracy@facstaff.wisc.edu ("William F. Tracy") Reply-To: MentalCaviar@aol.com, maize@net.bio.net Subject: One more on "Ear" of corn etymology Date: 17 May 2002 16:19:39 +0100 Organization: University of Wisconsin Message-ID: <4.1.20020517101726.009bd4d0@facstaff.wisc.edu> References: Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk Following is my response to the fifth graders and all others interested in the origin (word) of the maize ear Hi, The origins of words can be a lot of fun and teach us a lot about human history and language development. Have the students check out the etymology (word history) of ear in Merriam Webster's Collegiate Dictionary (tenth edition). Hint: the origin of the word for human ears is different from that of corn ears. If it still doesn't make sense email me. Have fun! Bill Tracy At 03:48 PM 5/17/2002 +0100, you wrote: >That was a good answer, Leszek, but I think the question was "Why is the >word 'ear' used for this type of inflorescence?" (as opposed to eye or >nose or throat, for example). I confess I do not know the answer to that >question but I do know why the word "corn" is applied to the kernels. >"Corn" used to be descriptive of size (and probably of shape too); >anything the size of a grain of wheat was corn-sized, which is why >wheat is also called "corn" (in the UK). I deduce that the Indian maize >being described as "corn" by the early Europeans was a tad smaller in >the kernel than modern maize. Anyway, this older meaning of the word >"corn" can still be seen in e.g. the name "corned beef"; "corn" here >describes the size of the salt crystals used in the curing -- neither >maize nor wheat have anything to do with it! > >Adelaide > William F. Tracy Professor Department of Agronomy College of Agricultural and Life Sciences University of Wisconsin-Madison 457 Moore Hall 1575 Linden Dr. Madison, WI 53706 (608) 262-2587 FAX (608) 262-5217 And pray what more can a reasonable man desire, in peaceful times, in ordinary noons, than a sufficient number of ears of green sweet corn boiled, with the addition of salt. Henry David Thoreau, Walden From owner-maize@hgmp.mrc.ac.uk Tue May 21 15:01:59 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 5347017C0A for ; Tue, 21 May 2002 15:01:58 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 0D6FB17C0D for ; Tue, 21 May 2002 15:01:55 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id 5477017C0A; Tue, 21 May 2002 15:01:54 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: BaskinT@missouri.edu (Tobias Baskin) Reply-To: , Subject: Re: "Ear" of corn etymology Date: 21 May 2002 14:53:43 +0100 Organization: University of Missouri Message-ID: References: Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk Hi, This question about ears of corn and ears for listening is interesting. It turns out that both words have been used in English for a long time, nearly 1000 years. The OED lists quotes for both from years around 1000 AD. It also seems that they are independent. Ear for hearing comes from Latin, auris meaning ear for hearing, and this ear has given rise to all-sorts of related and modified meanings, eg "dog-eared page". The ear for grain (can be used for any cereal) comes from the Latin for acer meaning sharp. This root apparently also gave rise to "awn", another part of the cereal seed. The idea that ceral inflorescences are sharp seems also to be preserved by calling them spikes. The ear as in ear of corn seems to be used rather narrowly only for that meaning, with few modifications listed. But anyway ear of corn and ear for hearing seem to have converged on the same sound, and not by shared meaning. Great question! Tobias Baskin From owner-maize@hgmp.mrc.ac.uk Tue May 28 14:53:01 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 91B3C17A71 for ; Tue, 28 May 2002 14:52:59 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id C696117BEA for ; Tue, 28 May 2002 14:52:54 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id CDF8017A71; Tue, 28 May 2002 14:52:37 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: Bill Prange Reply-To: maize@net.bio.net, Bill_Prange@URSCorp.com Subject: Why Do We Eat Corn? (Digestibility) Date: 23 May 2002 16:17:10 +0100 Organization: - Message-ID: X-Spam-Level: * Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk Bill Prange, in so many words wrote: Perhaps you can help answer a question that was floated about our office this morning. It is frequently noted that corn kernels seem to pass through the digestive system intact. Aside from the fact that corn is tasty, why do we eat corn? It would appear that my body does not process it very well. Others in my office shared similar experiences with corn. Did I gain any nutritional value from the corn? Thanks for your help. Curiously Corny in Tampa From owner-maize@hgmp.mrc.ac.uk Tue May 28 19:20:36 2002 Return-Path: Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id F10A317AD5 for ; Tue, 28 May 2002 19:20:34 +0100 (BST) Received: from localhost (localhost [127.0.0.1]) by mercury.hgmp.mrc.ac.uk (Postfix) with ESMTP id 0729417B03 for ; Tue, 28 May 2002 19:20:32 +0100 (BST) Received: by mercury.hgmp.mrc.ac.uk (Postfix, from userid 60001) id C3DA817AD5; Tue, 28 May 2002 19:20:31 +0100 (BST) To: maize@net.bio.net Newsgroups: bionet.maize From: joebee@web.de (Jörg Bantin) Subject: Re: Why Do We Eat Corn? (Digestibility) Date: 28 May 2002 17:37:17 +0100 Organization: http://freemail.web.de/ Message-ID: <200205281636.g4SGatX27225@mailgate5.cinetic.de> X-Spam-Level: * Sender: owner-maize@hgmp.mrc.ac.uk Precedence: bulk Chew it more properly you will see the difference ;-) Honest! ________________________________________________________________ Keine verlorenen Lotto-Quittungen, keine vergessenen Gewinne mehr! Beim WEB.DE Lottoservice: http://tippen2.web.de/?x=13