| 重金属污染土壤植物修复中的微生物功能研究进展 |
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| 引用本文： | 李韵诗,冯冲凌,吴晓芙,石润. 重金属污染土壤植物修复中的微生物功能研究进展[J]. 生态学报, 2015, 35(20): 6881-6890 |
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| 作者姓名： | 李韵诗 冯冲凌 吴晓芙 石润 |
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| 作者单位： | 中南林业科技大学, 环境科学与工程研究中心, 长沙 410004,中南林业科技大学, 环境科学与工程研究中心, 长沙 410004,中南林业科技大学, 环境科学与工程研究中心, 长沙 410004,中南林业科技大学, 环境科学与工程研究中心, 长沙 410004 |
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| 基金项目： | 国家"十二五"科技支撑计划项目(2012BAC09B03);国家"十二五"科技惠民计划项目(2012GS430203);湖南省环境科学与工程重点学科建设项目;中南林业科技大学研究生科技创新基金 |
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| 摘 要： | 综述了国内外在重金属污染土壤植物-微生物联合修复领域的研究报道,总结了近5年的研究实例。植物-微生物联合修复体系具有生物固定与生物去除土壤重金属的两种功能,根际微生物可以菌根、内生菌等方式与根系形成联合体,通过增强植物抗性和优化根际环境,促进根系发展,增强植物吸收和向上转运重金属的能力。建立植物-微生物联合修复体系,可充分发挥植物与微生物作用功能的优势,提高污染土壤的修复效率。增强植物修复体系中微生物功能的重点是深入研究根际微生物、根系和介质载体三者之间复合功能,结合污染土壤类型与植物群落配置的特点筛选扩繁高效菌种与菌群。
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| 关 键 词： | 重金属污染土壤 植物修复 微生物效应 植物-微生物复合功能 |
| 收稿时间： | 2014-05-01 |
| 修稿时间： | 2014-12-05 |
A review on the functions of microorganisms in the phytoremediation of heavy metal-contaminated soils |
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| LI Yunshi,FENG Chongling,WU Xiaofu and SHI Run. A review on the functions of microorganisms in the phytoremediation of heavy metal-contaminated soils[J]. Acta Ecologica Sinica, 2015, 35(20): 6881-6890 |
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| Authors: | LI Yunshi FENG Chongling WU Xiaofu SHI Run |
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| Affiliation: | Institute of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China,Institute of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China,Institute of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China and Institute of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China |
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| Abstract: | We have reviewed the current literature on plant-microorganism remediation systems for the treatment of heavy metal contaminated soils, including examples of applications developed or advanced in the past five years. In the bioremediation process, the plant-microorganism system performs two functions:metal immobilization and metal removal. Arbuscular mycorrhiza, symbiotic complexes between endophytes and plant root systems, can optimize the micro-environmental conditions for root development and enhance the ability of plants to tolerate metal toxicity, thus promoting both plant growth and metal uptake and transport. Establishment of a plant-microorganism coupling system can amplify the independent effects of the plant and the microorganism, thereby increasing the efficiency of phytoremediation. Investigation of the synergistic effects among plants, microorganisms, and their growth media will be an important topic of future study. The development of new technology requires that particular attention be given to the screening and replication of microorganisms suited to remediation of different types of heavy metal pollution. |
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| Keywords: | heavy metal contaminated soil phytoremediation microbial effect integrated plant-microorganism functions |
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