First evidence on different transportation modes of arsenic and phosphorus in arsenic hyperaccumulator Pteris vittata
文献类型：期刊论文
| 作者 | Lei, M ; Wan, Xiaoming(万小铭) ; Huang, ZC ; Chen, TB ; Li, XW ; Liu, YR |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2012 |
| 卷号 | 161期号:0页码:1-7 |
| 关键词 | Arsenic hyperaccumulator Micro-XANES Phosphate Pteris vittata L. SRXRF |
| 通讯作者 | Chen, TB |
| 英文摘要 | Arsenic (As) reduction and translocation are key processes for As hyperaccumulation by the hyperaccumulator Pteris vittata L Micro-X-ray adsorption spectroscopy of P. vittata's rhizoid tissues revealed that As reduction mainly occurred in endodermis during translocation from epidermis to vascular bundle. Prior to reduction, arsenate (As (V)) translocation was an active process requiring energy and employing a phosphate (P) transporter. Use of a synchrotron X-ray microprobe showed that As (V) and P were cotransported and that this process could be enhanced by As (V) exposure or P deficiency but restrained by energy release inhibition caused by 2,4-dinitrophenol or sodium orthovanadate. In contrast, after As reduction, As(III) translocation differed from P translocation and was more efficient, appearing free from the apparent endodermal blockage. The results here revealed the role of the P transporter on As translocation as well as the key role of As reduction in As hyperaccumulation by P. vittata. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China 41071215;Natural Science Foundation of China-Guangdong Joint Foundation of China U0833004;Chinese Academy of Sciences KZCX2-YW-Q02-02 |
| 语种 | 英语 |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/8504]  |
| 专题 | 地理科学与资源研究所_研究生部 |
| 推荐引用方式 GB/T 7714 | Lei, M,Wan, Xiaoming,Huang, ZC,et al. First evidence on different transportation modes of arsenic and phosphorus in arsenic hyperaccumulator Pteris vittata[J]. ENVIRONMENTAL POLLUTION,2012,161(0):1-7. |
| APA | Lei, M,Wan, Xiaoming,Huang, ZC,Chen, TB,Li, XW,&Liu, YR.(2012).First evidence on different transportation modes of arsenic and phosphorus in arsenic hyperaccumulator Pteris vittata.ENVIRONMENTAL POLLUTION,161(0),1-7. |
| MLA | Lei, M,et al."First evidence on different transportation modes of arsenic and phosphorus in arsenic hyperaccumulator Pteris vittata".ENVIRONMENTAL POLLUTION 161.0(2012):1-7. |
入库方式： OAI收割
来源：地理科学与资源研究所
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