Zinc tolerance and accumulation in Pteris vittata L. and its potential for phytoremediation of Zn- and As-contaminated soil
文献类型：SCI/SSCI论文
| 作者 | Lei M. |
| 发表日期 | 2006 |
| 关键词 | accumulation arsenic hyperaccumulator Pteris vittata L tolerance zinc arsenic accumulation heavy-metals mining area copper pollution toxicity streams plants lead mine |
| 英文摘要 | A field investigation and pot experiments were conducted to determine the potential of arsenic (As) hyperaccumulator, Pteris vittata L., to remediate sites co-contaminated with zinc (Zn) and As. We found that P. vittata L. had a very high tolerance to Zn and grew normally at sites with high Zn concentrations. In addition, P. vittata L. could effectively take up Zn into its fronds, with a maximum of 737 mg kg(-1) under field conditions. In pot experiments, the accumulated Zn concentration increased significantly as the Zn treatment was raised from 0 to 2000 mg kg(-1), with a maximum Zn accumulation of 0.22 mg pot(-1). Although the concentration of As in P. vittata L. was reduced by the addition of Zn, total frond accumulation of As was elevated when the Zn treatment was increased from 0 to 1000 mg kg(-1), with a maximum As accumulation of 8.3 mg pot(-1) in the presence of 1000 mg kg(-1) Zn. The high Zn tolerance, relatively high ability to accumulate Zn, and great capacity to accumulate As under conditions of suppression by high Zn suggest that P. vittata L. could be useful for the remediation of sites co-contaminated with Zn and As. (c) 2005 Elsevier Ltd. All rights reserved. |
| 出处 | Chemosphere |
| 卷 | 62 |
| 期 | 5 |
| 页 | 796-802 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0045-6535 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24324]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Lei M.. Zinc tolerance and accumulation in Pteris vittata L. and its potential for phytoremediation of Zn- and As-contaminated soil. 2006. |
入库方式： OAI收割
来源：地理科学与资源研究所
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