Vascular bundle

[Katica Ilic]

Hi Dave,

Thanks for your reply. I am so glad to see some action on po-dev.

I've always thought that: 1) veins are vascular bundles in the leaves, and
2) vascular bundle is a very broad term applicable to all vascular plants.

I have an excellent book chapter writen by my dear former colleague,
Nancy Dangler (actually she was my boss when I taught a few lectures
in one of her classes) from U of Toronto, entitled: "Developmental aspects
of C4 photosyntesis". I will look into this and get back to you.

Katica

On Thu, 26 Aug 2004, Dave Matthews wrote:

> Hi Katica,
>
> I'm out of my league here, I'm no anatomist.  But I think a vascular bundle
> is quite different from a vein.  Refers to a feature that's specific for
> C4 plants.  Containing a cell type called bundle sheath cells that also
> are found only in C4 plants.  Searching PubMed for "vascular bundle C4"
> found some abstracts that might be worth peeking at.  E.g.
> http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11432917
>
> - Dave
>
> > Date: Thu, 26 Aug 2004 16:13:22 -0700 (PDT)
> > From: Katica Ilic <katica at acoma.Stanford.EDU>
> >
> > Pankaj,
> >
> > In the first publication (J Exp Bot, Tobin and Yamaya, 2001), they are
> > indeed reffering to vascular bundle, but once you see the micrographs,
> > (though it's not very clear), you can perhaps annotate it to a more
> > granular term (see fig 6 in the paper). If you can't use more granular term,
> > the appropriate PO term that can be used here is
> >
> > PO:0020138 : leaf vein
> > Definition: A strand of vascular tissue in the leaf blade.
> >
> > This definition nicely describes what they are showing it the manuscript.
> >
> > As for the second link, I didn't understand why you need to use
> > 'vascular bundle' specificaly. Can't you just use coresponding PO term
> > (leaf vein or similar)?
> >
> > I thought we agreed to look into PO first and see what is already there,
> > before we started considering adding new terms. In this particular case,
> > it seems to me we are going in circles (since we already got rid of term
> > 'vascular bundle').
> >
> > Katica
>
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> David E. Matthews, Ph.D.            USDA-ARS Plant Genome Database Curator
> Cornell University                  Email: matthews at greengenes.cit.cornell.edu
> Department of Plant Breeding
> 409 Bradfield Hall                                 Phone: 607-255-9951 (Voice)
> Ithaca, New York 14853, USA                               607-255-6683 (Fax)
>

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Katica Ilic             		katica at acoma.stanford.edu
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