植物-内生菌联合处理环境污染物研究进展  

Degradation of environmental pollutants by plant-endophyte combination: research progress

作　　者：李艳 李剑[1] 刘庆辉 杨航 王志宇 张玮川 刘团 LI Yan;LI Jian;LIU Qinghui;YANG Hang;WANG Zhiyu;ZHANG Weichuan;LIU Tuan(National-Local Joint Engineering Research Center of Heavy Metals Pollutants Control and Resource,School of Environmental and Chemical Engineering,Nanchang Hangkong University,Nanchang 330063,China)

机构地区：[1]南昌航空大学环境与化学工程学院,重金属污染物控制与资源化国家地方联合工程研究中心,南昌330063

出　　处：《应用与环境生物学报》2021年第6期1706-1715,共10页Chinese Journal of Applied and Environmental Biology

基　　金：国家自然科学基金项目(21467018);江西省教育厅项目(GJJ170576)资助。

摘　　要：植物-内生菌联合处理技术不仅可以克服微生物和植物单独处理污染物时的缺陷,而且更加高效、无二次污染.对内生菌的接种方式、定殖过程、作用机理、影响因素以及植物-内生菌联合技术在土壤、水体、大气中的应用和作用机理进行全面综述.植物与内生菌二者可以相互合作,内生菌不仅可以促进植物的生长,而且在适应和耐受胁迫环境中起着重要的调节作用;内生菌通过释放抗菌化合物、产生铁载体、争夺空间和营养以及调节植物的抗逆性,对宿主植物产生生物和非生物胁迫的抗性或耐受性.一些菌株可以通过阻断植物乙烯合成途径来缓解植物胁迫.同时协同植物隔离、转化、降解、吸收环境中的污染物质,特别是一些难降解的物质.但这些研究大都以土壤、水体为介质,关于大气处理的研究非常缺乏,关于内生菌的定殖过程和机理研究也较少.此外总结了大气污染物如颗粒物(particulate matters,PMs)、挥发性有机物(volatile organic compounds,VOCs)、无机污染物的处理和修复.虽然目前关于植物-内生菌联合处理环境中污染物的研究较多,但是二者相互作用的机理,特别是内生菌的定殖动态和植物-内生菌相互作用的持续性还不清楚,需要深入研究.Plant-endophyte combination technology not only overcomes the defects of microorganisms or plants in treating pollutants separately but is also more efficient and does not cause secondary pollution. In this study,we comprehensively summarize the endophyte inoculation mode, colonization process, and mechanism of action, as well as the application and mechanism of action of the plant-endophyte combination technology in soil, water, and atmosphere. Bacterial endophytes can confer resistance or tolerance to the host plants from biotic and abiotic stresses by releasing antimicrobial compounds, producing siderophores, competing for space and nutrients, and modulating the plant resistance response. Some bacterial strains can relieve plant stress by blocking the pathway of ethylene synthesis in plants. Research progress shows that plants and endophytes can cooperate with each other. On the one hand, endophytes promote plant growth, and on the other hand they play an important regulatory role in adapting to and tolerating environmental stress. Moreover, endophytes can help plants to isolate, transform, degrade, and absorb pollutants in the environment, especially for some hardly decomposed substances. However, most studies have focused on soil and water media, and there is a lack of research on atmospheric treatments. Moreover, there is a further lack of research on the colonization process and mechanism of endophytes. Therefore, the different inoculation methods of endophytes, their entry into plants from different parts of the roots, and their influencing factors are reviewed in detail in this paper, alongside a review of the remediation of particulate matters(PMs), volatile organic compounds(VOCs), and inorganic pollutants. To date, although there have been many studies on the treatment of environmental pollutants by plant-endophyte technology, their mechanism of action has not been fully explained, especially endophytic colonization dynamics and the persistence of the interaction, which will be topics for further stud

关 键 词：植物-内生菌联合技术 内生菌定殖 土壤污染物 水体污染物 大气污染物 有机污染物 颗粒物 挥发性有机物 

分 类 号：X17[环境科学与工程—环境科学] X505