Article
Silencing of phosphoethanolamine N-methyltransferase results in temperature-sensitive male sterility and salt hypersensitivity in Arabidopsis.
The Plant cell - 1 Sept 2002
Mou Zhonglin, Wang Xiaoqun, Fu Zhiming, Dai Ya, Han Chang, Ouyang Jian, Bao Fang, Hu Yuxin, Li Jiayang
Abstract excerpt
S-Adenosyl-L-methionine:phosphoethanolamine N-methyltransferase (PEAMT; EC 2.1.1.103) catalyzes the key step in choline (Cho) biosynthesis, the N-methylation of phosphoethanolamine. Cho is a vital precursor of the membrane phospholipid phosphatidylcholine, which accounts for 40 to 60% of lipids in nonplastid plant membranes. Certain plants use Cho to produce the osmoprotectant glycine betaine, which confers...
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