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乙烯通过它在新陈代谢调节中所起的直接或间接效应,对植物衰老的进程起了主导作用。乙烯在采后园艺作物中产生的生理生化效应包括了呼吸活性的增加;酶活性的增加,例如:多聚半乳糖醛酸酶、苯丙氨酸转氨酶、脂肪氧化酶、淀粉酶、多酚氧化酶、过氧化物酶;渗透性增加与细胞区域化丧失;生长素的运输与代谢的改变。然而,乙烯促进衰老的机制尚未可知。Lieberman指出乙烯促进衰老作用及生长素、赤霉素、细胞激动素与脱落酸(ABA)的
Ethylene plays a leading role in the process of plant senescence through its direct and indirect effects in the regulation of metabolism. Physiological and biochemical effects of ethylene in postharvest horticultural crops include increased respiratory activity; increased enzyme activity such as polygalacturonase, phenylalanine aminotransferase, lipoxygenase, amylase, polyphenol oxidation Enzymes, Peroxidase; Increased permeability and loss of cell localization; Changes in transport and metabolism of auxin. However, the mechanism by which ethylene promotes aging is not yet known. Lieberman pointed out that ethylene promotes senescence as well as auxin, gibberellin, cytokinin and abscisic acid (ABA)