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

[kellogge]

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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