Ethylene, an important plant regulator, is synthesized from S-
adenosyl-
L-
methionine by the sequential action of 1-
amino-
cyclopropane-
carboxylate (ACC) synthases (ACSs) and ACC oxidases (ACOs). Aminoethoxyvinyl glycine is an inhibitor of ethylene biosynthesis that, at 1 μM, blocks the activity of both ACSs and ACOs.
1 Through this action, it reduces ethylene-
mediated changes in plant growth and development.
2,3,4 Aminoethoxyvinyl glycine also inhibits cystathionine γ-
lyase (K
i = 10.5 μM) with slow-
and tight-
binding characteristics.
5