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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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Citing This Article：

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).