Postharvest Physiology Laboratory, Beltsville Agricultural Research Center (W), Beltsville, Maryland 20705.
Plant Physiol. 1981 Aug;68(2):453-6. doi: 10.1104/pp.68.2.453.
Ethylene production in apple fruit and protoplasts and in leaf tissue was inhibited by spermidine or spermine. These polyamines, as well as putrescine, inhibited auxin-induced ethylene production and the conversion of methionine and 1-aminocyclopropane-1-carboxylic acid to ethylene. Polyamines were more effective as inhibitors of ethylene synthesis at the early, rather than at the late, stages of fruit ripening. Ca(2+) in the incubation medium reduced the inhibitory effect caused by the amines. A possible mode of action by which polyamines inhibit ethylene production is discussed.
多胺(腐胺、亚精胺和精胺)抑制了苹果果实和原生质体及叶片组织中乙烯的生成,也抑制了生长素诱导的乙烯生成和蛋氨酸及 1-氨基环丙烷-1-羧酸向乙烯的转化。在果实成熟的早期,多胺比在晚期作为乙烯合成抑制剂的效果更为显著。孵育介质中的 Ca(2+)降低了这些胺引起的抑制作用。讨论了多胺抑制乙烯生成的一种可能作用模式。