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Difference of toxicity and accumulation of methylated and inorganic arsenic in arsenic-hyperaccumulating and -hypertolerant plants
Huang, ZC; Chen, TB; Lei, M; Liu, YR; Hu, TD; Hu TD(胡天斗)
2008
发表期刊ENVIRONMENTAL SCIENCE & TECHNOLOGY
卷号42期号:14页码:5106-5111
通讯作者[Huang, Ze-Chun ; Chen, Tong-Bin ; Lei, Mei ; Liu, Ying-Ru] Chinese Acad Sci, Inst Geog & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China ; [Hu, Tian-Dou] Chinese Acad Sci, Inst High Energy Phys, Lab Synchrotron Radiat, Beijing 100039, Peoples R China
文章类型Article
摘要The arsenic (As) hyperaccumulators, Pteris vittata and Pteris cretica and an As-tolerant plant Boehmeria nivea, were selected to compare the toxicity, uptake, and transportation of inorganic arsenate (As(V)) and its methylated counterpart dimethylarsinic acid (DMA). The XANES method was used to elucidate the effect of As species transformation on As toxicity and accumulation characteristics. Significantly higher toxicity and lower accumulation of DMA than inorganic As V) was shown in the As hyperaccumulators and the As-tolerant plant. Reduction of As(V) was commonly found in the plants. Arsenic complexation with thiols, which have less mobility in plants and usually occur in As-tolerant plants, was also found in rhizoids of P. cretica. Plants with greater ability to form As-thiolate have lower ability for upward transport of As. Demethylation of DMA occurred in the three plants. The DMA component decreased from the rhizoids to the fronds in both hyperaccumulators, while this tendency is reverse in B. nivea.
学科领域Engineering; Environmental Sciences & Ecology
DOI10.1021/es703243h
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语种英语
WOS研究方向Engineering ; Environmental Sciences & Ecology
WOS类目Engineering, Environmental ; Environmental Sciences
WOS记录号WOS:000257620000016
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文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240014
专题多学科研究中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Huang, ZC,Chen, TB,Lei, M,et al. Difference of toxicity and accumulation of methylated and inorganic arsenic in arsenic-hyperaccumulating and -hypertolerant plants[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2008,42(14):5106-5111.
APA Huang, ZC,Chen, TB,Lei, M,Liu, YR,Hu, TD,&胡天斗.(2008).Difference of toxicity and accumulation of methylated and inorganic arsenic in arsenic-hyperaccumulating and -hypertolerant plants.ENVIRONMENTAL SCIENCE & TECHNOLOGY,42(14),5106-5111.
MLA Huang, ZC,et al."Difference of toxicity and accumulation of methylated and inorganic arsenic in arsenic-hyperaccumulating and -hypertolerant plants".ENVIRONMENTAL SCIENCE & TECHNOLOGY 42.14(2008):5106-5111.
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