Arsenic speciation for the phytoremediation by the Chinese brake
fern, Pteris vittata |
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Authors: | R Shoji R Yajima and Y Yano |
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Institution: | Department of Chemical Science and Engineering Tokyo National College of Technology 1220-2 Kunugida Hachioji |
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Abstract: | 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... |
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Keywords: | arsenic hyper accumulator phosphorus thiol phytochelatin |
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