terms for roots [Leszek, Mary, Marty]

[Pankaj Jaiswal]

Leszek, Mary, Marty

Can you come up with a final decision and let me know. I will add the 
terms accrodingly.

If the 'root from node above scutellum' is called as 'lateral seminal 
root'. I would rather use the later as term name.

We need definitions as well.

Pankaj


Marty Sachs wrote:

> Toby,
> 
> This looks fine to me except for:
> 
>> embryonic root
>> ---is-a primary root
>> ---is-a embryonic nodal root
> 
>> ------is-a seminal root
> 
>> ------is-a root from node above scutellum
> 
> 
> 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.
> 
> See: http://aob.oxfordjournals.org/cgi/content/full/93/4/359/MCH056F1
> 
> http://maize.agron.iastate.edu/images/corn/fig1.gif
> 
> The crown (a.k.a, nodal) roots are the first ones that form above the 
> scutellem.
> 
>         -Marty
> 
> At 11:12 AM -0500 6/19/06, kellogge wrote:
> 
>> Hi folks -
>>   Mary and I have had a discussion about terms for roots in maize, 
>> which has led to the suggestion of the following terms:
>>
>> Under each type of root, she has requested terms defining the central 
>> axis and also the lateral root.
>> An example for crown root is:
>> crown root
>> ---part-of central axis of crown root
>> ---part-of lateral root from crown root
>>
>> 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.
>> Here's a proposed solution:
> 
>> embryonic root
>> ---is-a primary root
>> ---is-a embryonic nodal root
>> ------is-a seminal root
>> ------is-a root from node above scutellum
> 
>>
>> shoot-borne root
>> ---is-a nodal root
>> ------is-a embryonic nodal root
>> ---------is-a seminal root
>> ---------is-a root from node above scutellum
>> ------is-a prop root
>> ------is-a crown root