Proposal for the new term in Plant Structure Ont: middle layer

[katica at acoma.Stanford.EDU]

Hi Toby,

I know, I mentioned it yesterday on the conf call. However, its position 
in the ontology leaves little doubt what the term is. We have other terms 
that have a bit uninformative term name, for example, 'protective layer', 
or 'separation layer', of the abscission zone; it becomes obvious only 
when you see the ontology tree (and definition too).

'Middle layer of the anther wall' as a term name, I guess if we have to 
(to avoid confussion), it wouldn't be the worst name out there. Google
search retrieved mostly middle layer of the anther wall. I did find 'middle 
layer' in description of the intervascular pit membranes in some woody
species (Salix, Acer...). Peter and Quentin could tell us more about how 
often this term is used in anatomy of woody species.

Katica


On Sat, 7 Jan 2006, 
kellogge wrote:

> hi Katica -
>   My only concern is that "middle layer" is such an uninformative term on 
> its own.  I"m wondering if this is a case where we need to call it "middle 
> layer of anther wall".  (I know - I'm suggesting a complex term where one 
> isn't strictly needed.  It just seems that there are a lot of things that 
> could have middle layers.)
> Toby
>
> On Jan 6, 2006, at 6:50 PM, katica at acoma.Stanford.EDU wrote:
>
>> Hi All,
>> 
>> This is the proposal for introduction of the new term in the Plant 
>> Structure Ontology, 'middle layer':
>> 
>> New term name: Middle layer
>> Definition: Usually a single cell layer between tapetum and endothecium 
>> which almost invariably degenerates early during angiosperm anther 
>> development and is eventually absorbed by adjacent cells.
>> 
>> Proposed ontology structure:
>> 
>> PO:0000002 : anther wall
>> (p) PO:0020002 : endothecium
>> (p) PO:0020004 : exothecium
>> (p) PO:0020005 : placentoid
>> (p) PO:0020101 : stomium
>> (p) PO:0009071 : tapetum
>> (p) new term: middle layer
>> 
>> I am planning to introduce this term to the PO a week from today, unless 
>> active discussion takes place regarding this term over the next week at 
>> po-dev mailing list. I would greatly appreciate your comments and 
>> suggestions.
>> 
>> Thanks and have a great weekend.
>> 
>> Katica Ilic
>> 
>> 
>> --------------------------------------------------------------------------
>> 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.
>> --------------------------------------------------------------------------
>> 
>> 
> 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
> http://www.umsl.edu/services/kellogg/
>

-- 
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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.
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