Arsenic speciation for the phytoremediation by the Chinese brake fern,Pteris vittata  

作　　者：R.Shoji R.Yajima Y.Yano 

机构地区：[1]Department of Chemical Science and Engineering,Tokyo National College of Technology,1220-2 Kunugida,Hachioji

出　　处：《Journal of Environmental Sciences》2008年第12期1463-1468,共6页环境科学学报（英文版）

摘　　要：Arsenic(As)speciation for the phytoremediation by the Chinese brake fern was studied.In particular,the mechanism of how plants induce compounds containing thiol(SH)and proteins by As exposure in terms of the relationship between As and phosphate uptaken into plant cells was examined.Pteris vittata callus could effciently reduce As(V)to As(III)by the rapid introduction of reductase and synthesize thiols leading to phytochelatins production.Furthermore,Pteris vittata could control phosphate concentration in t...Arsenic(As)speciation for the phytoremediation by the Chinese brake fern was studied.In particular,the mechanism of how plants induce compounds containing thiol(SH)and proteins by As exposure in terms of the relationship between As and phosphate uptaken into plant cells was examined.Pteris vittata callus could effciently reduce As(V)to As(III)by the rapid introduction of reductase and synthesize thiols leading to phytochelatins production.Furthermore,Pteris vittata could control phosphate concentration in t...

关 键 词：arsenic hyper accumulator phosphorus THIOL PHYTOCHELATIN 

分 类 号：X173[环境科学与工程—环境科学]