稀土农用的核酸生物学效应  

Biological effect of agricultural application of rare earth elements on nucleic acid

作　　者：王丽红[1] 周青[2,1] 

机构地区：[1]江南大学环境与土木工程学院,无锡214122 [2]江南大学工业生物技术教育部重点实验室,无锡214122

出　　处：《中国生态农业学报》2009年第2期387-392,共6页Chinese Journal of Eco-Agriculture

基　　金：国家自然科学基金(30570323);国家发改委稀土专项基金(IFZ20051210)资助

摘　　要：稀土农用给中国农业带来巨大的经济效益,同时稀土环境安全问题也引发中外科学家的关注。核酸是储存和传递遗传信息的聚合物,本文从遗传学角度论述了稀土对核酸的影响及其机制。稀土可与核酸分子结合,或断裂核酸;阐述了稀土离子的核酸结合部位及作用方式,总结了断裂机理,并提出今后研究的方向。The extensive application of rare earth elements in agricultural practices in China has brought remarkable economic benefits. However, environmental safety concerns from rare earth element use in agriculture are growing in the Chinese and foreign scientific community. Nucleic acid is a polymer that stores and transfers genetic information. This paper reviews the effect of rare earth on nucleic acid and its mechanisms from the point of view of genetics. It is indicated that rare earth binds with nucleic acid or hydrolyzes nucleic acid. Binding sites of Ln3＋ with nucleic acid, mode of action and hydrolytic mechanisms are elucidated. Finally, the future direction of research in this field is proposed.

关 键 词：稀土离子 遗传 核酸 水解 环境安全 

分 类 号：X17[环境科学与工程—环境科学]