Role of transpiration in arsenic accumulation of hyperaccumulator Pteris vittata L
文献类型：SCI/SSCI论文
| 作者 | Wan X. M.; Lei, M.; Chen, T. B.; Yang, J. X.; Liu, H. T.; Chen, Y. |
| 发表日期 | 2015 |
| 关键词 | Arsenic Ecotype Phytoextraction Pteris vittata L. Transpiration cadmium accumulation sedum-alfredii populations growth plant soil mechanisms aquaglyceroporins translocation absorption |
| 英文摘要 | Mechanisms of Pteris vittata L. to hyperaccumulate arsenic (As), especially the efficient translocation of As from rhizoids to fronds, are not clear yet. The present study aims to investigate the role of transpiration in the accumulation of As from the aspects of transpiration regulation and ecotypic difference. Results showed that As accumulation of P. vittata increased proportionally with an increase in the As exposure concentration. Lowering the transpiration rate by 28 similar to 67 % decreased the shoot As concentration by 19 similar to 56 %. Comparison of As distribution under normal treatment and shade treatment indicated that transpiration determines the distribution pattern of As in pinnae. In terms of the ecotypic difference, the P. vittata ecotype from moister and warmer habitat had 40 % higher transpiration and correspondingly 40 % higher shoot As concentration than the ecotype from drier and cooler habitat. Results disclosed that transpiration is the main driver for P. vittata to accumulate and re-distribute As in pinnae. |
| 出处 | Environmental Science and Pollution Research |
| 卷 | 22 |
| 期 | 21 |
| 页 | 16631-16639 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 0944-1344 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/38887]  |
| 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 | Wan X. M.,Lei, M.,Chen, T. B.,et al. Role of transpiration in arsenic accumulation of hyperaccumulator Pteris vittata L. 2015. |
入库方式： OAI收割
来源：地理科学与资源研究所
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