Re: How deep will plants grow

[Paul Krombholz <krombhol at teclink_net>]

David Marshburn wrote:

>
>............(as much as 60-70% of the root tissue of aquatic
>plants is gas storage, and gas storage and movement structures are present
>throughout aquatic plants)................
>


I would like to know more about the movement structures.  How do 
aquatic plants move the gas in their lacunae?  I thought that gasses 
got around in a submerged plant's air systems just by diffusion.  I 
did read an article by Ole Pedersen about gas transport in the yellow 
water lily, but the mechanism for that depended on the leaves of the 
lily being exposed to air.

-- 
Paul Krombholz in rapidly cooling central Mississippi, where a strong 
cold front just blasted through.