重金属胁迫下内生菌对宿主植物的解毒机制
发布时间：2018-11-11 12:33
【摘要】：采用内生菌联合植物修复是土壤重金属污染修复理论研究和应用实践的新思路。较之根际促生菌,内生菌因生存环境稳定且与植物联系更加紧密,在实际应用中具有更大价值。在重金属胁迫下,部分具有特定功能的细菌可进入植物体内成为内生菌,这些内生菌通常在重金属吸收、耐受和解毒方面具有优良的特性,而且可以协同宿主植物耐受重金属胁迫,表现在直接或间接降低植物体内重金属胁迫强度和提高植物本身对重金属的耐受性两方面。系统分析了内生菌对宿主植物的解毒机制,综述了近年来内生菌增强植物重金属耐受性的研究,展望了重金属胁迫下植物和内生菌互作机制的研究思路和方向。
[Abstract]:Using endophytic bacteria combined with phytoremediation is a new idea for theoretical research and application practice of heavy metal pollution remediation in soil. Compared with rhizosphere promoting bacteria, endophytic bacteria are more valuable in practical application because of their stable living environment and closer relationship with plants. Under heavy metal stress, some of the bacteria with specific functions can enter the plant to become endophytic bacteria, and these endophytes usually have excellent characteristics in heavy metal absorption, tolerance and detoxification. Moreover, it can be combined with host plants to tolerate heavy metal stress, which can directly or indirectly reduce the intensity of heavy metal stress in plants and improve the tolerance of plants to heavy metals. The detoxification mechanism of endophytic bacteria to host plants was systematically analyzed. The recent studies on endophytic bacteria to enhance the tolerance of heavy metals in plants were reviewed. The research ideas and directions of interaction mechanism between plants and endophytes under heavy metal stress were prospected.
【作者单位】： 中山大学环境科学与工程学院;广东省环境污染控制与修复技术重点实验室;
【基金】：环保公益性行业科研专项项目(No.201509037) 广东省自然科学基金项目(No.2015A030313159)~~
【分类号】：X53;X17
[Abstract]:Using endophytic bacteria combined with phytoremediation is a new idea for theoretical research and application practice of heavy metal pollution remediation in soil. Compared with rhizosphere promoting bacteria, endophytic bacteria are more valuable in practical application because of their stable living environment and closer relationship with plants. Under heavy metal stress, some of the bacteria with specific functions can enter the plant to become endophytic bacteria, and these endophytes usually have excellent characteristics in heavy metal absorption, tolerance and detoxification. Moreover, it can be combined with host plants to tolerate heavy metal stress, which can directly or indirectly reduce the intensity of heavy metal stress in plants and improve the tolerance of plants to heavy metals. The detoxification mechanism of endophytic bacteria to host plants was systematically analyzed. The recent studies on endophytic bacteria to enhance the tolerance of heavy metals in plants were reviewed. The research ideas and directions of interaction mechanism between plants and endophytes under heavy metal stress were prospected.
【作者单位】： 中山大学环境科学与工程学院;广东省环境污染控制与修复技术重点实验室;
【基金】：环保公益性行业科研专项项目(No.201509037) 广东省自然科学基金项目(No.2015A030313159)~~
【分类号】：X53;X17
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1 陈燕玫;柏s，
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