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<div>Toby,</div>
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<div>This looks fine to me except for:</div>
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<blockquote type="cite" cite>embryonic root<br>
---is-a primary root<br>
---is-a embryonic nodal root</blockquote>
<blockquote type="cite" cite>------is-a seminal root</blockquote>
<blockquote type="cite" cite>------is-a root from node<font
color="#FF0000"><b> above</b></font> scutellum</blockquote>
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<div>These roots which are also called 'secondary roots' or 'lateral
seminal roots' are actually from the scutellar node, not from a node
above the scutellum.</div>
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<div>See:
http://aob.oxfordjournals.org/cgi/content/full/93/4/359/MCH056F1</div>
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<div>http://maize.agron.iastate.edu/images/corn/fig1.gif</div>
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<div>The crown (a.k.a, nodal) roots are the first ones that form above
the scutellem.</div>
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<div><x-tab>
</x-tab>-Marty</div>
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<div>At 11:12 AM -0500 6/19/06, kellogge wrote:</div>
<blockquote type="cite" cite>Hi folks -<br>
Mary and I have had a discussion about terms for roots in
maize, which has led to the suggestion of the following terms:<br>
<br>
Under each type of root, she has requested terms defining the central
axis and also the lateral root.<br>
An example for crown root is:<br>
crown root<br>
---part-of central axis of crown root<br>
---part-of lateral root from crown root<br>
<br>
She has also run into the problem that grass embryos are well enough
differentiated to have multiple nodes, such "nodal root" can
apply within the embryo as well as on the germinated plant.<br>
Here's a proposed solution:<br>
</blockquote>
<blockquote type="cite" cite>embryonic root<br>
---is-a primary root<br>
---is-a embryonic nodal root<br>
------is-a seminal root<br>
------is-a root from node above scutellum</blockquote>
<blockquote type="cite" cite><br>
shoot-borne root<br>
---is-a nodal root<br>
------is-a embryonic nodal root<br>
---------is-a seminal root<br>
---------is-a root from node above scutellum<br>
------is-a prop root<br>
------is-a crown root<br>
<br>
Toby<br>
<br>
Elizabeth A. Kellogg<br>
E. Desmond Lee and Family Professor of Botanical Studies<br>
Department of Biology<br>
University of Missouri-St. Louis<br>
St. Louis, MO 63121<br>
Tel: 314-516-6217; FAX: 314-516-6233<br>
http://www.umsl.edu/services/kellogg/<br>
This message is for the designated recipient(s) only and may contain
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Thank you.</blockquote>
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