Roles of Sulfur in the Arsenic Tolerant Plant Adiantum capillus-veneris and the Hyperaccumulator Pteris vittata
文献类型：期刊论文
| 作者 | Li, Xuewen(李学文) ; Lei, Mei ; Chen, Tong-bin(陈同斌) ; Wan, Xiaoming(万小铭) |
| 刊名 | JOURNAL OF THE KOREAN SOCIETY FOR APPLIED BIOLOGICAL CHEMISTRY
 |
| 出版日期 | 2009 |
| 卷号 | 52期号:5页码:498-502 |
| 关键词 | Adiantum capillus-veneris arsenic EXAFS GSH Pteris vittata sulfur XANES |
| 通讯作者 | Chen TB |
| 英文摘要 | In this study, the role of sulfur (S) and arsenic (As) species in the As hyperaccumulator Pteris vittata (P. vittata) and the As hypertolerant plant Adiantum capillus-veneris (A. capillus-veneris) were investigated. Under As exposure, sulfhydryl groups (-SH) increased in both plants, indicating that arsenate enhanced sulfur assimilation. This S then played different roles in the two plants. In A. capillus-veneris, As was mainly coordinated with S; whereas in P vittata, it was coordinated with oxygen. Differences in As concentration and in the rate of As reduction were noted in the two plants. In A. capillus-veneris, As was present at lower levels and was reduced and coordinated (combined) with -SH. This was considered to represent a defense strategy to limit As transport to the frond. For P vittata, we deduced that the SH group was likely used as an electron donor to reduce As (V) to As (III), therefore fewer SH groups were used to coordinate with reduced As (M). This was regarded as an accumulation strategy to facilitate As transport. The results of this study suggested that S played important roles in As detoxification and accumulation in tolerant and hyperaccumulating plants. |
| 学科主题 | Agricultural Engineering; Food Science & Technology |
| 收录类别 | SCI |
| 资助信息 | National High-tech Program (863 Program) of China [2007AA061001] |
| 公开日期 | 2011-06-10 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/3307]  |
| 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 | Li, Xuewen,Lei, Mei,Chen, Tong-bin,et al. Roles of Sulfur in the Arsenic Tolerant Plant Adiantum capillus-veneris and the Hyperaccumulator Pteris vittata[J]. JOURNAL OF THE KOREAN SOCIETY FOR APPLIED BIOLOGICAL CHEMISTRY,2009,52(5):498-502. |
| APA | Li, Xuewen,Lei, Mei,Chen, Tong-bin,&Wan, Xiaoming.(2009).Roles of Sulfur in the Arsenic Tolerant Plant Adiantum capillus-veneris and the Hyperaccumulator Pteris vittata.JOURNAL OF THE KOREAN SOCIETY FOR APPLIED BIOLOGICAL CHEMISTRY,52(5),498-502. |
| MLA | Li, Xuewen,et al."Roles of Sulfur in the Arsenic Tolerant Plant Adiantum capillus-veneris and the Hyperaccumulator Pteris vittata".JOURNAL OF THE KOREAN SOCIETY FOR APPLIED BIOLOGICAL CHEMISTRY 52.5(2009):498-502. |
入库方式： OAI收割
来源：地理科学与资源研究所
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