Arsenic accumulation by the aquatic fern Azolla: Comparison of arsenate uptake, speciation and efflux by A. caroliniana and A. filiculoides
文献类型：期刊论文
| 作者 | Xu, Guo-Zhong; Lin, Ai-Jun; Zhao, Fang-Jie; Zhang, Xin; Zhu, Yong-Guan; Duan, Gui-Lan |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2008-12 |
| 卷号 | 156期号:3页码:1149-1155 |
| 关键词 | Arsenic As Speciation As Tolerance As Uptake Azolla Accumulation Detoxification |
| 英文摘要 | This study investigates As accumulation and tolerance of the aquatic fern Azolla. Fifty strains of Azolla showed a large variation in As accumulation. The highest- and lowest-accumulating ferns among the 50 strains were chosen for further investigations. Azolla caroliniana accumulated two times more As than Azolla filiculoides owing to a higher influx velocity for arsenate. A. filiculoides was more resistant to external arsenate due to a lower uptake. Both strains showed a similar degree of tolerance to internal As. Arsenate and arsenite were the dominant As species in both Azolla strains, with methlyated As species accounting for <5% of the total As. A. filiculoides had a higher proportion of arsenite than A. caroliniana. Both strains effluxed more arsenate than arsenite, and the amount of As efflux was proportional to the amount of As accumulation. The potential of growing Azolla in paddy fields to reduce As transfer from soil and water to rice should be further evaluated. (C) 2008 Elsevier Ltd. All rights reserved. |
| WOS记录号 | WOS:000261678700073 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/22314]  |
| 专题 | 生态环境研究中心_土壤环境科学实验室 |
| 推荐引用方式 GB/T 7714 | Xu, Guo-Zhong,Lin, Ai-Jun,Zhao, Fang-Jie,et al. Arsenic accumulation by the aquatic fern Azolla: Comparison of arsenate uptake, speciation and efflux by A. caroliniana and A. filiculoides[J]. ENVIRONMENTAL POLLUTION,2008,156(3):1149-1155. |
| APA | Xu, Guo-Zhong,Lin, Ai-Jun,Zhao, Fang-Jie,Zhang, Xin,Zhu, Yong-Guan,&Duan, Gui-Lan.(2008).Arsenic accumulation by the aquatic fern Azolla: Comparison of arsenate uptake, speciation and efflux by A. caroliniana and A. filiculoides.ENVIRONMENTAL POLLUTION,156(3),1149-1155. |
| MLA | Xu, Guo-Zhong,et al."Arsenic accumulation by the aquatic fern Azolla: Comparison of arsenate uptake, speciation and efflux by A. caroliniana and A. filiculoides".ENVIRONMENTAL POLLUTION 156.3(2008):1149-1155. |
入库方式： OAI收割
来源：生态环境研究中心
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