Micro-distribution of arsenic species in tissues of hyperaccumulator Pteris vittata L.
文献类型：期刊论文
| 作者 | Wan, Xiaoming1; Lei, Mei1; Chen, Tongbin1; Ma, Jie2,3 |
| 刊名 | CHEMOSPHERE
 |
| 出版日期 | 2017 |
| 卷号 | 166页码:389-399 |
| 关键词 | Arsenic species Micro-distribution Oxidation Pteris vittata Reduction Thiol |
| ISSN号 | 0045-6535 |
| DOI | 10.1016/j.chemosphere.2016.09.115 |
| 通讯作者 | Lei, Mei(leim@igsnrr.ac.cn) |
| 英文摘要 | Arsenic (As) contamination and its harmful consequences have gained increasing attention in research. Phytoextraction, which uses the As hyperaccumulator Pteris vittata L., is a well-established technology adopted in many countries. However, the hyperaccumulation mechanisms of this plant remain controversial. This study investigated the species and the micro-distribution of As species in three P. vittata L ecotypes after exposure to arsenite (AsIII) and arsenate (AsV) for 7d. Arsenic-accumulating abilities and preferences to As species varied among different ecotypes. The reduction of AsV into AsIII, oxidation of AsIII into AsV, and chelation of AsIII with thiols were all observed in P. vittata. The reduction of As mainly occurred in the rhizoid, whereas oxidation and chelation mainly occurred in the above ground parts. Correlation analyses showed that the As concentration in pinna was significantly correlated with the AsV percentage in paraxial and abaxial epidermis (positive), AsIII-GSH percentage in paraxial epidermis (positive), and AsIII percentage in paraxial and abaxial epidermis (negative). Results indicated that oxidation and chelation reactions contributed to the accumulation of As in P. vittata. (C) 2016 Elsevier Ltd. All rights reserved. |
| WOS关键词 | RAY-ABSORPTION SPECTROSCOPY ; CHINESE BRAKE FERN ; PITYROGRAMMA-CALOMELANOS ; SPATIAL-DISTRIBUTION ; PROTEOMIC ANALYSIS ; PADDY SOIL ; SPECIATION ; RICE ; PLANTS ; ACCUMULATION |
| 资助项目 | National Natural Science Foundation of China[41301547] ; Program for Bingwei Excellent Talents of the Institute of Geographic Sciences and Natural Resources Research, CAS |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000386186400042 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; Program for Bingwei Excellent Talents of the Institute of Geographic Sciences and Natural Resources Research, CAS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/66073]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Lei, Mei |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.China Univ Geosci, Sch Water Resources & Environm, Beijing 100083, Peoples R China 3.China Univ Geosci, State Key Lab Biogeol & Environm & Geol, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wan, Xiaoming,Lei, Mei,Chen, Tongbin,et al. Micro-distribution of arsenic species in tissues of hyperaccumulator Pteris vittata L.[J]. CHEMOSPHERE,2017,166:389-399. |
| APA | Wan, Xiaoming,Lei, Mei,Chen, Tongbin,&Ma, Jie.(2017).Micro-distribution of arsenic species in tissues of hyperaccumulator Pteris vittata L..CHEMOSPHERE,166,389-399. |
| MLA | Wan, Xiaoming,et al."Micro-distribution of arsenic species in tissues of hyperaccumulator Pteris vittata L.".CHEMOSPHERE 166(2017):389-399. |
入库方式： OAI收割
来源：地理科学与资源研究所
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