重金属胁迫对植物的毒害及其抗性机理研究进展  

The Research Advance in Toxic Hazard of Heavy Metal Stress on Plant and Its Resistance Mechanism

作　　者：唐东民[1,2] 伍钧[2] 唐勇 宗贵仪 曾容 

机构地区：[1]眉山市环境监测站,四川眉山620010 [2]四川农业大学环境科学与工程系,四川雅安625014 [3]四川省绵阳市工留学校,四川绵阳621023

出　　处：《四川环境》2008年第5期79-83,共5页Sichuan Environment

基　　金：四川省科技厅应用基础基金资助项目(02NY029-099)

摘　　要：本文综述了在重金属胁迫下对植物的毒害(影响植物根系生长、增大细胞膜透性、破坏植物抗氧化酶系统和光合系统、对基因产生毒害等)及植物由此而产生的抗性反应(激活金属络合蛋白、竞争结合位点、重金属的细胞分布区域化、诱导产生根系分泌物等),并展望了今后的研究重点。This paper reviewed the toxic hazard effects of heavy metal stress on plant such as inhibiting root growth, increasing permeability of cell membrane, destroying anti-oxidative enzymes system and photosynthesis, and causing DNA damages as well as consequential resistance reactions such as activation of metal complex protein, competition of binding site, compartmentation of heavy metal distribution in cell, induction to produce roots secretion. Important research points in future were prospected.

关 键 词：重金属胁迫 植物 毒害 抗性 

分 类 号：X53[环境科学与工程—环境工程]