nodule

[Pankaj Jaiswal]

Perhaps we should rename it to "root nodule" and the ones Jeff is 
suggesting are termed "stem nodules".

This raises a question. Do we need a generic/grouping  term "nodule" of 
which "stem nodule" and "root nodule" are instances. Obviously in the 
ontology these nodules are part_of "stem" and "root" respectively.

-Pankaj

Jeff J. Doyle wrote:

>>
>> PO:0003023
>> name: nodule
>> def: Enlargement or swelling on the roots of plants, particularly in the
>> Fabaceae, inhabited by nitrogen-fixing bacteria.
> 
> 
> There are also what are called "stem nodules" in some legumes (the 
> papilionoid genus Sesbania is the prime example, but the caesalpiniod 
> Neptunia also has nodules on floating stems).  Stem nodules are 
> associated with adventitious roots, however, so the definition is not 
> actually incorrect, even if the position of the roots in question is not 
> typical.
> 
> --Jeff
> 
>