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乙烯诱导下草莓果实采后RNA代谢与蛋白质合成活性的变化

罗云波, 刘先舜

北京农业大学食品系. 北京(100094)

摘要

草莓果实在乳白时期采收(开花后约40d), 分别用10#mu#l/L,50#mu#l/L和100#mu#l/L的外源乙烯进行处理。处理后的果实大分子RNA和poly(A)~(+)RNA水平以及poly(A)~( +)RNA与总RNA的比例均有增高。果实体内RNA酶活性和体外蛋白质的合成水平也升高。乙烯很可能是促进草莓果实成熟衰老的因素之一。图3表2参8

关键词： 草莓; 乙烯 poly(A)~(＋)RNA; 蛋白质合成

Effects of ethylene on the RNA metabolism and protein synthesis activity in postharvest strawberry fruit

Luo Yunbo, Liu Xianshun

Food Department, Beijing Agricultural University. Beijing

Abstract

Strawberry fruits harvested at the stage of milky white(40 d after blossom) were treated with exogenous ethlene at concentrations of 10#mu#1/L, 50#mu#1/L, and 100 #mu#1/L. The changes of the RNA metabolism were studied by the determination of the contents of high molecular weight RNA and poly(A)~(+)RNA as well as the activities of RNase and in vitro protein synthesis. It has been shown that the contents of high molecular weight RNA and poly(A)~(+)RNA and the ratio of (poly(A)~(+)RNA)/RNA was increased by ethylene treatment at a concentration of 10 #mu#1/L or higher. The RNase activity and in vitro protein synthesis activity were also increased by ethylene treatment.

Key words: Strawberry;Ethylene poly(A)~(+) RNA;Protein synthesis

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引用本文：

罗云波, 刘先舜. 乙烯诱导下草莓果实采后RNA代谢与蛋白质合成活性的变化[J]. 生理学报 1994; 46 (3): .

Luo Yunbo, Liu Xianshun. Effects of ethylene on the RNA metabolism and protein synthesis activity in postharvest strawberry fruit. Acta Physiol Sin 1994; 46 (3): (in Chinese with English abstract).