Question on part of seedling

[Peter Stevens]

>There will be a number of other terms that refer to this part of the 
>plant - like mesocotyl itself (along with hypocotyl, etc.).  Or one 
>may have to include "embryo" as part of this new term, since the 
>mesocotyl (f.i.) is visible there.


P.



>Hi Everyone,
>
>Thank you for your responses. Here are some of the definitions I 
>found in the literature.
>
>
>CROWN -
>
>1
>part of the wheat/barley plant located about 0.5 inches below the 
>soil surface. The crown is where the nodes are tightly packed 
>together, tiller buds develop, and coronal root buds develop.
>
>2
>Located between the coleoptile and the mesocotyl, the crown contains 
>the growing point where the rest of the plant will begin to form and 
>the nodes where the nodal or permanent roots will form.
>
>I think we might have to create new term "germinating/juvenile 
>seedling" as an instance of "vegetative shoot", in order to 
>introduce "crown" as part of it.
>
>Any suggestions ?
>
>Pankaj
>
>
>Leonore Reiser wrote:
>
>>Hmm_ I did find:
>>
>>
>>on this page:http://www.hcs.ohio-state.edu/hcs200/Stems.html
>>
>>
>>Tillers  are secondary stems that arise from nodes       at the base of
>>the main stem, and are almost vertical in position.        The crown of a
>>plant is a group of modified stems with       very short internodes that
>>occur very close to the soil surface.       It usually functions as a site
>>for food storage and new growth       in perennial species. Most forage
>>grasses, and some forage legumes       (alfalfa and clovers)Â  have a
>>crown.Â
>>
>>But doesnt quite sound like what is described in the url you sent.
>>
>>Actually there are some interesting pages on this website (e.g. soybean
>>growth stage information).
>>Leonore
>>
>>
>>On Tue, 14 Oct 2003, Pankaj Jaiswal wrote:
>>
>>>Hi
>>>
>>>Can somebody help me in identifying what is this term "crown" stands for in
>>>barley, described at http://bioinf.scri.sari.ac.uk/affy/mx-crown.htm
>>>
>>>Thanks
>>>
>>>Pankaj
>>>
>>
>>
>>-------------------------------------------------------------------------------
>>Leonore Reiser, Ph.D.                   lreiser at acoma.stanford.edu
>>The Arabidopsis Information Resource	FAX: (650) 325-6857
>>Carnegie Institution of Washington	Tel: (650) 325-1521 ext. 311
>>Department of Plant Biology		URL: http://arabidopsis.org/
>>260 Panama St.
>>Stanford, CA 94305
>>-------------------------------------------------------------------------------
>>
>
>--
>******************************************
>Pankaj Jaiswal, Ph.D.
>Research Associate
>Dept. of Plant Breeding
>Cornell University
>Ithaca, NY-14853, USA
>
>Tel:+1-607-255-3103 / Fax:+1-607-255-6683
>E mail: pj37 at cornell.edu
>http://www.gramene.org
>******************************************