摘要
研究了红树植物桐花树幼苗根茎叶各器官在不同盐分处理下，蛋白质含量、超氧化物歧化酶、过氧化物酶和过氧化氢酶及膜脂质过氧化作用的变化情况。结果表明：随着盐分的增加，叶和根的蛋白质含量均有所下降，而茎的蛋白质含量则有所升高。各器官膜脂质过氧化作用随盐度增加都有增加．过氧化物酶和过氧化氢酶活性随盐度增加则有微弱下降或基本保持稳定，而超氧化物歧化酶活性则表现出较为明显的下降趋势，讨论了桐花树幼苗在盐度存在情况下膜脂质过氧化作用和膜保护酶系统的关系。
The variations of protein content,activities of superoxide dismutase(SOD),catalase(CAT)and peroxidase(POX)and the membrane peroxidation intensity in various or-gans of Aegiceras corniculatum seedling with the changes of salinity were investigated. The rela-tionship betweem peroxidation and membrane protection enzyme was discussed for the mangroveplant seedling at different soil salinities。 The results showed that the content of protein in leaf androot declined with the increasing of salinity, while the protein content in stem increased and theactivity of SOD reduced remarkedly,finally the activities of CAT and POX had a little redutionor remain stable.
出处
《厦门大学学报（自然科学版）》
CAS
CSCD
北大核心
1995年第4期629-633,共5页
Journal of Xiamen University：Natural Science
基金
中国博士后科学基金
关键词
红树林
桐花树
盐度
膜脂质过氧化
膜保护酶系统
Mangrove,Aegiceras corniculatum,Membrane peroxidation,Membraneprotection enzyme system
