Difference of toxicity and accumulation of methylated and inorganic arsenic in arsenic-hyperaccumulating and -hypertolerant plants

	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)
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2008
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
英文摘要	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.
学科主题	Engineering; Environmental Sciences & Ecology
类目[WOS]	Engineering, Environmental ; Environmental Sciences
研究领域[WOS]	Engineering ; Environmental Sciences & Ecology
原文出处	SCI
语种	英语
WOS记录号	WOS:000257620000016
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/240014]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 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.