terms for roots

[Marty Sachs]

Mary,

About the best I could find is in; Kiesselbach TA (1949) The 
Structure and Reproduction of Corn. Nebr Agric Exp Stn Ann Rep 
161:1-96

http://www.maizegdb.org/cgi-bin/displayrefrecord.cgi?id=59445

I'm attaching Figure 6 (page 14).

The seminal (secondary) root here is also growing upwards, but 
clearly emerging from the scultellar node (embryo axis).

On page 16-17 in a description of the root system, it says: "The root 
system of corn, as of other grasses, consists of two sets of roots: 
(1) seminal roots whose initials are present in the embryo, and (2) 
adventitious roots, which arise from stem tissue after 
germination...."


	-Marty


At 1:17 PM -0500 6/19/06, Mary (Polacco) Schaeffer wrote:
>Marty,
>That was my concern but since there seems to be some dispute here 
>amongst my betters:
>Do you have a picture or published reference I could go to for this?
>  m
>
>
>From: Marty Sachs <msachs at uiuc.edu>
>Date: Mon, 19 Jun 2006 13:12:45 -0500
>To: "Mary (Polacco) Schaeffer" <SchaefferM at missouri.edu>, POC-dev 
><po-dev at plantontology.org>
>Subject: Re: terms for roots
>...
>I've looked at a lot of these roots in my day, and it is true that 
>in some backgrounds, they tend to grow upwards and appear as if 
>they're emerging above the scutellum.  However, they're really 
>originating from within the scutellum (or the embryo axis proper).
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://brie4.cshl.edu/pipermail/po-dev/attachments/20060619/53074ab3/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: %Kiesselbach-roots.jpg
Type: application/applefile
Size: 131 bytes
Desc: not available
URL: <http://brie4.cshl.edu/pipermail/po-dev/attachments/20060619/53074ab3/attachment.bin>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Kiesselbach-roots.jpg
Type: image/jpeg
Size: 120372 bytes
Desc: not available
URL: <http://brie4.cshl.edu/pipermail/po-dev/attachments/20060619/53074ab3/attachment.jpg>