Impacts of sulfur regulation in vivo on arsenic accumulation and tolerance of hyperaccumulator Pteris vittata
文献类型：期刊论文
| 作者 | Lei, M ; Wan, XM(万小铭) ; Li, XW ; Chen, TB ; Liu, YR ; Huang, ZC |
| 刊名 | ENVIRONMENTAL AND EXPERIMENTAL BOTANY
 |
| 出版日期 | 2013 |
| 卷号 | 85页码:1-6 |
| 关键词 | Arsenic hyperaccumulator BSO (L-buthionine-sulfoximine) OAS (O-acetyl-L-serine) Pteris vittata Sulfur XAFS (X-ray absorption fine structure) |
| 通讯作者 | Chen, TB |
| 英文摘要 | The impacts of the regulation of sulfur (S) metabolism in vivo on arsenic (As) and S species and on As accumulation by Pteris vittata L were investigated using a synchrotron-based X-ray-absorption fine structure method. The S assimilation inhibitor L-buthionine-sulfoximine (BSO) markedly inhibited As reduction, doubling arsenate (As(V)) content in P. vittata rhizoids. The resulting As transport blockage in rhizoids, decreased As movement to aboveground tissues by 47%. The significant impact of BSO demonstrated the vital role of sulfhydryl groups (-SH) as reductants in As(V) reduction and confirmed the importance of As(V) reduction in As accumulation in this fern. The S metabolism accelerant O-acetyl-L-serine resulted in the appearance of large amounts of As-SH in rhizoids and had no obvious impact on As accumulation, but with As stress conditions, effectively increased plant biomass, possibly through chelation of excess As with -SH. Thus, -SH appeared able to act as both a reductant and a chelator of As in P. vittata, and the ratio of -SH to As may have been a factor that determined the specific role of -SH in P. vittata under these conditions. (C) 2012 Elsevier B.V. All rights reserved. |
| 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 ；National Science and Technology Infrastructure Program of China 2007BAC28B04 ；Knowledge Innovation Program of the Chinese Academy of Sciences KZCX2-YW-Q02-02 |
| 语种 | 英语 |
| 公开日期 | 2013-03-07 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/27827]  |
| 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, XM,Li, XW,et al. Impacts of sulfur regulation in vivo on arsenic accumulation and tolerance of hyperaccumulator Pteris vittata[J]. ENVIRONMENTAL AND EXPERIMENTAL BOTANY,2013,85:1-6. |
| APA | Lei, M,Wan, XM,Li, XW,Chen, TB,Liu, YR,&Huang, ZC.(2013).Impacts of sulfur regulation in vivo on arsenic accumulation and tolerance of hyperaccumulator Pteris vittata.ENVIRONMENTAL AND EXPERIMENTAL BOTANY,85,1-6. |
| MLA | Lei, M,et al."Impacts of sulfur regulation in vivo on arsenic accumulation and tolerance of hyperaccumulator Pteris vittata".ENVIRONMENTAL AND EXPERIMENTAL BOTANY 85(2013):1-6. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。