UV-B对水稻幼苗膜脂过氧化作用的影响

被引：18

作者：

李韶山

王艳

刘颂豪

机构：

[1] 华南师范大学激光生命科学研究所!广州

[2] 暨南大学生命科学和技术学院!广州

来源：

激光生物学报 | 2000年 / 01期

基金：

广东省自然科学基金;

关键词：

水稻; UV-B; 膜透性; 丙二醛; 膜脂过氧化; 活性氧防御酶;

D O I：

暂无

中图分类号：

Q68 [物理因素对生物的作用];

学科分类号：

071011 ;

摘要：

:UV B处理的水稻幼苗 ,叶片的膜透性、O2 · 净产生速率及 MDA含量显著增加。在 UV B处理初期 ,活性氧防御酶系统中的 SOD和 CAT活性比对照增强 ,但随着处理时间的延长 ,SOD和 CAT活性明显下降 ;POD活性受 UV B处理抑制。这一结果表明 ,UV B降低了细胞内活性氧自由基的清除能力 ,膜脂过氧化作用加剧 ,最终导致伤害效应。

引用

页码：23 / 26

页数：4

共 13 条

[1]

Influence of UV B on growth,yield and some metabolic processes in higher plants. Wang Xiaojing and Pan Ruichi. Plant Physiology Communications . 1995

[2]

The discovery of superoxide dismutase:a history. FRIDOVCH I. Superoxide dismutase . 1982

[3]

Assay of catalases and peroxidases. Chance B,Maehly AC. Methods Enzym ol . 1955

[4]

Membrane as targets of ultravioletradiation. Murphy TF. Plant and Physiology . 1983

[5]

Quantitative relation between the reaction of hydroxylamine and superoxide anion radicals in plants. Wang Aiguo,Luo Guanghua. Plant Physiology . 1990

[6]

Detection of DNA damage induced by UV B radiation with monoclonlal antibody ELISA. Li Shaoshan,Wang Yan,Wang Xiaojing and Liu Songhao. Acta Laser Biology Sinica . 1999

[7]

Recent advances of UV B effects on higher plants. Li Shaoshan and Liu Songho. Acta Laser Biology Sinica . 1999

[8]

Influence ofultraviolet radiation on lipid peroxidation and m embraneperm eability in m ung bean seedlings. Li Shaoshan,Wang Yan,L iu Songhao. J. South China NormalU ni ( Natural Science) . 1996

[9]

A rapid and sensitive method for quantitation of microgram quantities of protein utilizing the principle of protein dye binding. BRADFORD M M. Analytical Biochemistry . 1976

[10]

Ultraviolet radiation and plants: burning questions. Stapleton AE. The Plant Cell . 1992

← 1 2 →