镍在植物体中的吸收转运机制  

Absorption and transportation mechanism of nickel in plants

作　　者：张玉秀[1] 张凯[1] 李金梅[1] 张媛雅[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《中国生态农业学报》2008年第3期778-782,共5页Chinese Journal of Eco-Agriculture

基　　金：国家高技术研究发展计划(863计划)项目(2006AA06Z355)资助

摘　　要：镍是植物生长的必需微量元素,但摄入过量则导致植物叶的坏死、茎的木质化及根的生长停止等,目前我国镍污染日趋严重,因此与基因技术结合的植物修复技术已成为治理镍污染的研究重点。本文综述了镍在植物体中的作用机理及其在植物体内的分布、吸收、运输和累积机制,并从基因技术方面阐述了目前国内外镍相关基因的研究状况。Nickel （ Ni）, though an essential microelement of plants, leads to necrosis of plant leaf, lignification of stem and growth inhibition of root with excessive intake. However, soil pollution by Ni is getting more severe in today＇s China, hence phytoremediation technology in combination with gene technology has become research emphasis of Ni pollution treatment. This review mainly focuses on the function of Ni in plants and mechanism of Ni absorption, transportation and accumulation as well as Ni gene formation.

关 键 词：镍 镍转运 镍基因 镍吸收 植物修复技术 

分 类 号：Q142.8[生物学—生态学]