| 蜈蚣草砷超富集机制及其在砷污染修复中的应用 |
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| 引用本文： | 申红玲,何振艳,麻密. 蜈蚣草砷超富集机制及其在砷污染修复中的应用[J]. 植物生理学通讯, 2014, 0(5): 591-598 |
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| 作者姓名： | 申红玲 何振艳 麻密 |
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| 作者单位： | [1]中国科学院植物研究所,北方资源植物重点实验室,北京100093 [2]中国科学院大学生命科学学院,北京100049 |
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| 基金项目： | 资助国家自然科学基金（31370299和30500307）。 |
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| 摘 要： | 蕨类植物蜈蚣草能够从土壤中吸收砷，并储存于地上部分羽叶的液泡中。蜈蚣草具有高效的抗氧化系统，以降低砷的毒害；其砷酸还原系统和液泡区隔化是蜈蚣草进行砷解毒和砷超富集的重要机制。本文综述了目前蜈蚣草砷超富集机制研究的主要进展，并对其在修复砷污染环境的应用中进行了讨论。
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| 关 键 词： | 砷 蜈蚣草 超富集 植物修复 砷解毒 |
Advance of the Mechanisms of Arsenic Hyperaccumulation in Pteris vittata L. and Applications for Arsenic-Remediation |
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| SHEN Hong-Ling,HE Zhen-Yan,MA Mi. Advance of the Mechanisms of Arsenic Hyperaccumulation in Pteris vittata L. and Applications for Arsenic-Remediation[J]. Plant Physiology Communications, 2014, 0(5): 591-598 |
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| Authors: | SHEN Hong-Ling HE Zhen-Yan MA Mi |
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| Affiliation: | 1Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beij＇ing 100093, China; 2. College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China) |
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| Abstract: | The fern Pteris vittata can absorb arsenic from the soil, and most of arsenic is transported to the abo-veground tissues, stored in the vacuole of fronds. P. vittata has an efifcient antioxidant system which can reduce arsenic poisoning. Importantly, the arsenate reduction system and vacuole sequestration are critical for arsenic detoxiifcation and arsenic hyperaccumulation. In this review, the latest research progress about the physiologi-cal and molecular mechanisms of arsenic tolerance and accumulation in P. vittata was summarized, and the fu-ture applications of this fern for remediation of removal arsenic-contaminated soils or water were discussed as well. |
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| Keywords: | arsenic Pteris vittata hyperaccumulation phytoremediation arsenic detoxiifcation |
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