epidermal long cell definition

[katica at acoma.stanford.edu]

Hi Toby,

This is all straight forward, just to mentioned that 'silica cell' will be 
a child of short cell too (is_a).

Are there any cases where silica cells are not a part of epidermis?

If no, I can go ahead and add two terms, short and long cell under 
epidermal cell, placing the children the way you described.


Katica

  On Wed, 10 May 2006, kellogge wrote:

> I think this was one of those "wait-until-we-need-it" terms.  Grass epidermes 
> have long cells and short cells in the epidermis, so we should probably 
> introduce both terms.  They will be children of "epidermal cell".
>
> "long cell" = a more or less rectangular epidermal cell in which the the 
> proximo-distal dimension is several times longer than the transverse 
> dimension
>
> "short cell" = an isodiametric epidermal cell
>
> "epidermal cork cell" is an instance of "short cell"
>
> Comment (for both cell types): In the leaf epidermis of Poaceae and 
> Joinvilleaceae, long cells and short cells often alternate in longitudinal 
> rows.
>
> Toby
>
> On May 9, 2006, at 7:59 PM, katica at acoma.Stanford.EDU wrote:
>
>> Pankaj,
>> 
>> You can find a short but good description in
>> 
>> Silicified Cells of Grasses: A Major Source of Plant Opal in Illinois
>> 
>> http://web.aces.uiuc.edu/vista/pdf_pubs/silcell.pdf
>> 
>> See the paragraph 'Kinds of epidermal cells'.
>> 
>> We briefly discussed different types of epidermal cells in grasses when we 
>> introduced 'epidermal cork cell', but at that time, we ended up adding only 
>> a type of short cell in  epidermis, 'cork cell (sensu Poaceae)'. Later, we 
>> changed the name to 'epidermal cork cell'
>> 
>> Katica
>> 
>> 
>> On Tue, 9 May 2006, Pankaj Jaiswal wrote:
>> 
>>> fno.neeru at yale.edu wrote:
>>> 
>>>> Hi Pankaj,
>>>> We had met at the PAG conference last year. I have a question regarding 
>>>> the
>>>> correct ontology for the rice epidermal cells called long cells. I am not 
>>>> able
>>>> to find it on the website may be you or someone from your group can help 
>>>> me. We
>>>> need to add that link to our website of LCM harvested cells.
>>>> Thanks
>>>> Neeru
>>> 
>>> 
>>> Dear Neeru,
>>> 
>>> Can you provide some images and the literature which our experts can 
>>> review.
>>> 
>>> Pankaj
>>> 
>> 
>> -- ----------------------------------------------------------------------- 
>> ---
>> Katica Ilic             		katica at acoma.stanford.edu
>> The Arabidopsis Information Resource 	Tel: (650) 325-1521 ext. 253
>> Carnegie Institution of Washington 	FAX: (650) 325-6857
>> Department of Plant Biology 		URL: http://arabidopsis.org/
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>> 
> Elizabeth A. Kellogg
> E. Desmond Lee and Family Professor of Botanical Studies
> Department of Biology
> University of Missouri-St. Louis
> St. Louis, MO 63121
> Tel: 314-516-6217; FAX: 314-516-6233
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-- 
--------------------------------------------------------------------------
Katica Ilic             		katica at acoma.stanford.edu
The Arabidopsis Information Resource 	Tel: (650) 325-1521 ext. 253
Carnegie Institution of Washington 	FAX: (650) 325-6857
Department of Plant Biology 		URL: http://arabidopsis.org/
260 Panama St.
Stanford, CA 94305
U.S.A.
--------------------------------------------------------------------------