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Lowering of barley embryo nucleic acid synthesis activity induced by electron beam irradiation

Liu Xiao, Zhao Yufang, Ling Beibei

Dalian Institute of Chemical Physics,Chinese Academy of Sciences.Dalian 116023,Liaoning；China

Abstract

The lowering effect of EB-irradiation on DNA replication activity was much stronger than that on RNA synthesis, with the slopes of their semilogarithmic curves being -0.0039 and -0.0014 respectively. According to this experiment, the 50% inhibitory dosage and lethal dosage of electron beam for DNA synthesis activity in barley embryos were about 178 and 256 Gy respectively.

Key words: Electron beam irradiation;DNA replication;RNA synthesis;Barley

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Citing This Article：

Liu Xiao, Zhao Yufang, Ling Beibei. Lowering of barley embryo nucleic acid synthesis activity induced by electron beam irradiation. Acta Physiol Sin 2000; 52 (3): (in Chinese with English abstract).