Simultaneous hyperaccumulation of arsenic and antimony in Cretan brake fern: Evidence of plant uptake and subcellular distributions
文献类型：SCI/SSCI论文
| 作者 | Feng R. W. ; Wei C. Y. ; Tu S. X. ; Tang S. R. ; Wu F. C. |
| 发表日期 | 2011 |
| 关键词 | Arsenic accumulation Antimony accumulation Hydroponic experiment Interaction Subcellular fractions pteris-vittata l. thlaspi-caerulescens contaminated soils accumulation selenium elements leaves |
| 英文摘要 | Arsenic (As) and antimony (Sb) show similar chemical properties and often present together in sulfide ores. Currently, phenomenon of co-contamination of As and Sb at some sites of the world has been increasingly emerged. The present study was conducted to explore the potential of Pteris cretica L. (Cretan brake fern), an arsenic (As) hyperaccumulator, to simultaneously accumulate As and Sb under hydroponic conditions. Arsenic was imposed at medium and high levels of 5 mg L(-1) and 20 mg L(-1). while Sb was imposed either single or co-presence with As at medium and high levels of 10 mg L(-1) and 20 mg L(-1), with no As and Sb addition as the control. The single and interactive effects of As and Sb on their uptake and subcellular distributions were analyzed. Cretan brake fern could accumulate high concentrations of As and Sb, with the highest concentrations of As and Sb been recorded as 1677.2 mg kg(-1) and 1516.5 mg kg(-1) in the fronds, respectively. Arsenic and Sb were found mainly in cytosol, while less in cell wall and cytoplasmic organelles. Sb uptake by Cretan brake fern was enhanced with increasing As levels, which was accompanied with an increase of Sb but a decrease of As in cytosol fractions. Arsenic uptake was slightly enhanced whereas suppressed when Sb was co-present in a medium and high level, respectively; however, in both conditions, As was found to be decreased in cytosol of the above ground parts as fronds and stems of Cretan brake fern. The results demonstrate Cretan brake fern can simultaneously hyperaccumulate As and Sb, thus is valued in phytoremediation of As and Sb co-contamination. (C) 2010 Elsevier B.V. All rights reserved. |
| 出处 | Microchemical Journal |
| 卷 | 97 |
| 期 | 1 |
| 页 | 38-43 |
| 收录类别 | SCI |
| ISSN号 | 0026-265X |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/24038]  |
| 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 | Feng R. W.,Wei C. Y.,Tu S. X.,et al. Simultaneous hyperaccumulation of arsenic and antimony in Cretan brake fern: Evidence of plant uptake and subcellular distributions. 2011. |
入库方式： OAI收割
来源：地理科学与资源研究所
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