Int J Phytoremediation. 2014;16(5):429-53. doi: 10.1080/15226514.2013.798613.
The discovery of the arsenic hyperaccumulator, Pteris vittata (Chinese brake fern), has contributed to the promotion of its application as a means of phytoremediation for arsenic removal from contaminated soils and water. Understanding the mechanisms involved in arsenic tolerance and accumulation of this plant provides valuable tools to improve the phytoremediation efficiency. In this review, the current knowledge about the physiological and molecular mechanisms of arsenic tolerance and accumulation in P. vittata is summarized, and an attempt has been made to clarify some of the unresolved questions related to these mechanisms. In addition, the capacity of P. vittata for remediation of arsenic-contaminated soils is evaluated under field conditions for the first time, and possible solutions to improve the remediation capacity of Pteris vittata are also discussed.
砷超富集植物凤尾蕨的发现，推动了其作为一种从污染土壤和水中去除砷的植物修复手段的应用。了解该植物砷耐受和积累的机制，为提高植物修复效率提供了有价值的工具。本综述总结了凤尾蕨砷耐受和积累的生理和分子机制的现有知识，并尝试阐明与这些机制相关的一些未解决的问题。此外，首次在田间条件下评估了凤尾蕨修复砷污染土壤的能力，并讨论了提高凤尾蕨修复能力的可能解决方案。
