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1、微生物学通报Nov.20,2018,45(11):2503−2516MicrobiologyChinahttp://journals.im.ac.cn/wswxtbcntongbao@im.ac.cnDOI:10.13344/j.microbiol.china.180360专论与综述植物-菌根真菌联合修复重金属污染土壤122122*吴洁婷杨东广王立包红旭赵磊马放(1.辽宁大学环境学院辽宁沈阳110036)(2.哈尔滨工业大学城市水资源与水环境国家重点实验室黑龙江哈尔滨150090)摘要：菌根是菌根真菌侵染植物根系后在植物根部形成的共生结构。菌根技术作为一种生物强化技术应用于重金属
2、污染土壤的植物修复已引起研究者的广泛关注。目前大量研究表明菌根能强化植物对重金属的转运、富集及根系稳定化过程，并通过促进营养物质的吸收利用、稳定细胞内氧化还原平衡、调控抗逆性相关基因的表达以及改善根际微生态环境等方式提升寄主植物的抗逆性。本文在介绍菌根真菌在植物修复重金属污染的联合过程中的作用效应及机制的基础上，分析了目前限制该技术应用的瓶颈问题以及未来的研究方向，为植物-菌根真菌联合修复的推广应用提供理论基础。关键词：菌根真菌，植物，联合修复，重金属Remediationofheavy-metalcontaminatedsoilbyplant-mycorrhizalfungal
3、combinations122122*WUJie-TingYANGDong-GuangWANGLiBAOHong-XuZHAOLeiMAFang(1.SchoolofEnvironment,LiaoningUniversity,Shenyang,Liaoning110036,China)(2.StateKeyLaboratoryofUrbanWaterResourceandEnvironment,HarbinInstituteofTechnology,Harbin,Heilongjiang150090,China)Abstract:Mycorrhizaearesymbiotics
4、tructuresformedintherootsofplantsaftermycorrhizalfungiinfectplantroots.Theuseofmycorrhizaeasabio-enhancingtechnologyinthephytoremediationofheavymetal-contaminatedsoilhasattractedextensiveattentionofresearchers.Alargenumberofstudieshaveshownthatmycorrhizaecanstrengthentheheavymetaltransportati
5、onandaccumulation,androotstabilizationprocessesofplants.Inaddition,theycanpromotetheabsorptionandutilizationofnutrients,stabilizeintracellularredoxbalance,regulatetheexpressionofresistance-relatedgenes,andalterthemicro-environmentintherhizospheretoimprovehostplantresistancetocontaminants.Inth
6、ispaper,throughreviewingtheresultsandmechanismsofusingplant-mycorrhizalfungalcombinationstorehabilitatesoilpollutedwithheavymetals,thebottleneckproblemsthatlimittheapplicationofthistechnologyandthefutureresearchdirectionsareFoundationitems:NationalNaturalScienceFoundationofChina(51608246);The
7、OpenProjectofStateKeyLaboratoryofUrbanWaterResourceandEnvironment,HarbinInstituteofTechnology(QA201715)*Correspondingauthor:Tel:86-451-86282107;E-mail:mafang@hit.edu.cnReceived:May07,2018;Accepted:August15,2018;Publishedonline(www.cnki.net):A
