摘要
Ethylene is a plant hormone which regulates many aspects of plant growth, development and senescence. The biosynthesis of ethylene in higher plants has been elucidated to proceed by the following pathway (Aadams and Yang 1979): Met→AdoMet→ACC→C_2H_4. 1-Aminocyclopropane-1-carboxylate (ACC) synthase catalyzes the conver-