Influence of Supplemental Ultraviolet B Radiation on Lipid Peroxidation of Chinese Cabbage

doi:10.3321/j.issn:1000-7091.1998.03.019

Abstract

Abstract: Chinese cabbage cultivar Aijiaohuang was grown in an indoor experiment treated by 0.0,13.0(simulating 20% ozone depletion)kJ m -2 day -1 of ultraviolet B(UV B)for 4 and 7 days to study the effect of supplemental UV B radiation on flavoniods and lipid peroxidation in the leaves of Chinese cabbage.Accumulation of UV absorbing flavonoids in the leaves of Chinese cabbage was induced by UV B radiation.Enhanced UV B radiation reduced ascorbic acid content in the leaves of Chinese cabbage .It was also found that 13.0 kJm -2 day -1 UV B inhibited catalase and superoxide dismutase activities and increased malondialdehyde content in the leaves of Chinese cabbage .These effects induced by UV B radiation was enhanced with the time course of treatment.The results above suggested that supplemental UV B radiation enhanced lipid peroxidation of Chinese cabbage,and the accumulation of UV absorbing flavonoid could not alleviate the damage of UV B radiation.

Key words: Chinese cabbage, Ultraviolet B, Flavonoids, Ascorbic acid, Lipid Peroxidation

CLC Number:

S634.9

Huang Shaobai， Zhang Jingjuan， Liu Xiaozhong， Dai Qiujie， Wang Zhixia. Influence of Supplemental Ultraviolet B Radiation on Lipid Peroxidation of Chinese Cabbage[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1998, 13(3): 97-101. doi: 10.3321/j.issn:1000-7091.1998.03.019.

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