term: columella

[Pankaj Jaiswal]

katica at acoma.Stanford.EDU wrote:

> 
> My two cents:
> 
> On Fri, 5 Aug 2005, Pankaj Jaiswal wrote:
> 
>>
>> <http://www.plantontology.org/amigo/go.cgi?action=query&view=query&search_constraint=terms&query=columella> 
>>
>>
>> Please correct me if I am wrong.
>>
>> As I understand it the term  PO:0020130 : central root cap is  a 
>> region in the root cap and its synonym "columella cells" is 
>> inappropriate. Also I see that a similar term  PO:0020132 : columella 
>> root cap cell exists, so the synonym "columella cells" should actually 
>> be added to  PO:0020132 : columella root cap cell and removed from 
>> PO:0020130 : central root cap.
> 
> 
> Central root cap IS columella, hence synonym 'columella cells'; I would 
> perhaps remove cells from this synonym. (BTW, that's why the definitions 
> in PO and in Esau are the same.)
> 
>>
>> A renaming of the term PO:0020132 : columella root cap cell to 
>> "central root cap cell" will help, thus maintaining consistency with 
>> parent term. Additional parent term for  PO:0020132 : columella root 
>> cap cell is a must as follows.
>>
>> PO:0020130 : central root cap
>> ---part_of--PO:0020132 : columella root cap cell
>>
>> For consistency the renaming is suggested for  PO:0020133 : columella 
>> root cap initial to "central root cap initial"
> 
> 
> This term 'PO:0020132 : columella root cap cell' resides only under 
> tissue (meristem) and cell node. When making these nodes, we agreed that 
> terms
> from tissue and cell node would not be propagated initially elsewhere in 
> the ontology, unless there is specific reason for that (mostly 
> annotation requirements). So, unless we have such a reason, this term 
> could stay where it is right  now.
> 
If the term is under tissue and cell and it is a specific type of cell 
found only in roots it is valid to have it as part of the root where it 
is actually found.

-Pankaj