功能内生细菌消减作物有机污染风险的研究进展

Research progress on functional endophytic bacteria for reducing organic contaminant risks in crops

摘要:

作物有机污染威胁食品产品安全和人体健康，亟待解决。内生细菌在微生态系统中不可或缺。近年来，国内外不断有研究从环境中筛选分离出具有降解污染物功能的内生细菌，并利用其调控作物体内有机污染物的代谢过程，实现作物体内有毒有机污染物的高效消减。本文综述了功能内生细菌消减作物体内有毒有机污染物积累的研究进展，重点从功能内生细菌定殖后作物体内有毒有机污染物的降解功能基因、降解产物和途径进行讨论，分析了影响功能内生细菌降解效能的因素，强调了功能内生菌群在作物有机污染物消减方面的重要性，为进一步利用内生细菌调控作物有机污染风险提供了思路和依据。

关键词:内生细菌;有机污染物;污染风险;功能菌群;微生物

Abstract:

Organic contamination of crops poses a threat to the safety of food products and human health, and it is urgently needed to be solved. Endophytic bacteria are indispensable in microecosystems. In recent years, researchers have screened and isolated endophytic bacteria with the function of degrading pollutants from the environment. These bacteria have been used to regulate the metabolic processes of organic pollutants in crops, which achieve the efficient reducing of toxic organic pollutants in crops. This paper reviews the research progress in the reduction of toxic organic pollutant accumulation in crops by functional endophytic bacteria, focusing on the degradation genes, products, and pathways of toxic organic pollutants in crops after the colonization of functional endophytic bacteria. Furthermore, it discusses the factors affecting the degradation efficiency of functional endophytic bacteria and emphasizes the importance of these bacteria in reducing organic pollutants in crops. This review provides ideas and a basis for the further utilization of endophytic bacteria to control the risk of organic contamination in crops.

Key words:endophytic bacteria;organic contaminants;contamination risk;functional consortia;microorganisms