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应用生态学报 ›› 2017, Vol. 28 ›› Issue (4): 1397-1406.doi: 10.13287/j.1001-9332.201704.005

• 综合评述 • 上一篇    

芒属植物重金属耐性及其在矿山废弃地植被恢复中的应用潜力

吴道铭1, 陈晓阳1,2, 曾曙才1*   

  1. 1华南农业大学林学与风景园林学院, 广州 510642
    2 华南农业大学农业部能源植物资源与利用重点实验室, 广州 510642
  • 收稿日期:2016-07-06 出版日期:2017-04-18 发布日期:2017-04-18
  • 通讯作者: * E-mail: sczeng@scau.edu.cn
  • 作者简介:吴道铭,男,1987年生,博士,讲师.主要从事植物逆境分子生理、重金属耐性植物筛选及矿山植被修复研究.E-mail:dmwu@scau.edu.cn
  • 基金资助:
    本文由国家自然科学基金项目(31270675)和广东省科技计划项目(2014A020216032,2015B020207002)资助

Heavy metal tolerance of Miscanthus plants and their phytoremediation potential in abandoned mine land

WU Dao-ming1, CHEN Xiao-yang1,2, ZENG Shu-cai1*   

  1. 1College of Forestry & Landscape Architecture, South China Agricultural University, Guangzhou 510642, China
    2Ministry of Agriculture Key Laboratory of Energy Plant Resources and Utilization, South China Agriculture University, Guangzhou 510642, China
  • Received:2016-07-06 Online:2017-04-18 Published:2017-04-18
  • Contact: * E-mail: sczeng@scau.edu.cn
  • Supported by:
    This work was supported by the National Natural Science Foundation of China (31270675) and the Science and Technology Program of Guangdong (2014A020216032,2015B020207002)

摘要: 芒属植物重金属耐性强,并且是重要的能源植物,其在矿山废弃地植被恢复中的应用备受关注.芒属植物对多种重金属耐性强,但不属于重金属超累积植物.目前的研究认为,根系代谢能力强、根际存在多种共生微生物及抗氧化和光合作用能力强是芒属植物重金属耐性强的重要原因,但更为全面的耐性机理需要深入研究.芒属植物在矿山废弃地植被恢复的应用潜力大,可以清除土壤重金属、改善土壤性质和促进生物多样性发展.本文总结分析了芒属植物生物学特性、重金属耐性特点、机理及其在矿山废弃地植被恢复中的应用潜力,提出了应用芒属植物进行矿山废弃地植被恢复的基本思路,并对芒属植物的重金属耐性机理及应用的未来研究方向进行展望,以期为利用芒属植物开展矿山废弃地植被恢复提供借鉴.

Abstract: Miscanthus has been recognized as promising candidate for phytoremediation in abandoned mine land, because of its high tolerance to heavy metals and bioenergy potential. Miscanthus has been reported tolerant to several heavy metal elements. However, it has not been recognized as hyperaccumulator for these elements. The detailed mechanisms by which Miscanthus tolerates these heavy metal elements are still unclear. According to recent studies, several mechanisms, such as high metabolic capacity in root, an abundance of microbes in the root-rhizosphere, and high capacity of antioxidation and photosynthesis might contribute to enhance the heavy metal tolerance of Miscanthus. Miscanthus has a certain potential in the phytoremediation of abandoned mine land, because of its high suitability for the phytostabilization of heavy metals. Moreover, Miscanthus cropping is a promising practice to enhance the diversity of botanical species and soil organism, and to improve soil physical and chemical properties. Here we reviewed recent literatures on the biological characteristics and the heavy metal tolerance of Miscanthus, and its phytoremediation potential in abandoned mine land. A basic guideline for using Miscanthus in abandoned mine land phytoremediation and an outlook for further study on the mechanisms of heavy metals tolerance in Miscanthus were further proposed. We hoped to provide theoretical references for phytoremediation in abandoned mine land by using Miscanthus.