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Plant Physiology 68:453-456 (1981) © 1981 American Society of Plant Biologists Polyamines Inhibit Biosynthesis of Ethylene in Higher Plant Tissue and Fruit Protoplasts 1
Postharvest Physiology Laboratory, Beltsville Agricultural Research Center (W), Beltsville, Maryland 20705, Department of Fruits and Vegetables Storage, Agricultural Research Organization, The Volcani Center, P. O. Box 6, Bet Dagan, Israel
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. Ca2+ 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.
2 On leave from the Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel. 3 Present address: Postharvest Physiology Laboratory, Horticultural Science Institute, Beltsville Agricultural Research Center, Beltsville, MD 20705. 1 This work was supported in part by the Agriculture Research Service and the University of Maryland, in Cooperative Agreement 12-14-1001-1390. This article has been cited by other articles:
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