菌根真菌修复重金属污染土壤研究进展
Research Progress of Mycorrhizal Fungi on the Remediation of Heavy Metal Contaminated Soil
杜运付 1伍金花 1高海健 1李广平 2张长青3
作者信息
- 1. 南京林业大学林草学院、水土保持学院,南京 210037
- 2. 南京林业大学林草学院、水土保持学院,南京 210037;南方现代林业协同创新中心,南京 210037
- 3. 金陵科技学院园艺园林学院,南京 211169
- 折叠
摘要
重金属污染由于其难降解性和积累性,已经成为土壤环境问题中的一大难点.菌根真菌能够与寄主植物形成互惠共生的关系,从而提高植物的重金属抗性,有利于加速污染地的植被覆盖,并能固持重金属,实现污染土壤再利用.真菌对寄主植物重金属的解毒机制主要包括结构固定、营养稀释、基因调控、螯合与辅助螯合、抗氧化等.为系统了解不同菌根真菌(内生菌根真菌,外生菌根真菌)对重金属胁迫下寄主的作用,本文综述了不同类型的菌根真菌对土壤重金属污染的修复作用并系统介绍了其作用机制,讨论了未来的研究方向.本综述为菌根真菌在修复重金属污染土壤中的应用提供理论参考.
Abstract
Heavy metal pollution has become a major difficulty in soil environmental problems due to its refractory degradation and accumulation.Mycorrhizal fungi are able to form a reciprocal symbiotic relationship with the host plant,thereby improving the heavy metal resistance of the plant,which conducive to accelerating the vegetation cover of contaminated land,and can hold heavy metals to achieve the reuse of contaminated soil.The detoxification mechanism of heavy metals in host plants by fungi mainly includes structural fixation,nutrient dilution,gene regulation,chelation and auxiliary chelation,and antioxidant.In order to systematically understand the effects of different mycorrhizal fungi(endomycorrhizae and ectomycorrhizae)on hosts under heavy metal stress,the effect and mechanism of mycorrhizal fungi in enhancing the resistance of host plants to heavy metals were reviewed in this article,and future research directions were discussed.This review provides a theoretical reference for the application of mycorrhizal fungi in the remediation of heavy metal-contaminated soil.
关键词
菌根真菌/土壤/微生物/重金属/修复技术Key words
Mycorrhizal fungi/Soil/Microbe/Heavy metal/Repair techniques引用本文复制引用
基金项目
江苏省现代农业产业技术体系建设项目(JATS[2022]023)
江苏省农业重大技术体系协同推广计划(2022-ZYXT-06)
出版年
2024
国家科技期刊平台
NSTL
万方数据