Root node question

[Sue Rhee]

I agree that they are not really developmental stage terms. It seems to me
they are pretty comparable to internodes and nodes in the shoot. Perhaps
you could create a branch below the root that is analogous to the
internodes in the shoot?

Sue


On Thu, 1 Apr 2004, Katica Ilic wrote:

> Hello all,
>
> I have a question regarding the root node that I have been working on
> lately. There are few terms that I have hard time finding proper place
> within the node, since they are not exactly anatomy terms in a strict
> sense, which is why they are referred as developmental stages in Benfey's
> lab (see Science, 12 Dec 2003, vol. 203:1956). These terms are,
> meristematic zone, elongation zone, specialization zone, maturation zone,
> and additional transition zone (in root apices of maize and grasses, at
> least). In the paper above, for instance, stele node has all four zones,
> endodermis plus cortex have all four zones, and so the epidermis. This is
> of course very redundant, however, looking at TAIR and cereal anatomy
> ontology, I couldn't really come up with the good solution that would
> eliminate such redundancy. Since these terms refer to the regions of
> differentiation, I don't think that they necessarily belong to
> developmental stages ontology.
>
> I would appreciate if we could talk about this tomorrow morning.
>
> Best regards,
>
> Katica
>
>
> --------------------------------------------------------------------------
> 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.
> --------------------------------------------------------------------------
>
>

-----------------------------------------------------------------------------
Sue Rhee                         	rhee at acoma.stanford.edu
The Arabidopsis Information Resource	URL: www.arabidopsis.org
Carnegie Institution of Washington	FAX: +1-650-325-6857
Department of Plant Biology		Tel: +1-650-325-1521 ext. 251
260 Panama St.
Stanford, CA 94305
U.S.A.
-----------------------------------------------------------------------------