In article <49olf9$7rs at newsbf02.news.aol.com>, aegeas at aol.com (Aegeas) says:
>>ANy information on the osmoprotectant choline, beta alanline, glycine
>betaine, proline will be greatly appreciated.
I am researching proline biosynthesis at the moment, though not with respect
to drought tolerance. There is an excellent mini-review in the Plant Journal
(1993)4(2) pages 215-223 by Delauney and Verma