摘要
植物根际促生菌是一类可以显著提高植物生活力或植物抗病害能力的天然土壤细菌,除可经由多种途径促进植物的营养吸收与物质积累、提高植物的各项生长参数与生理生化指标外,其还可通过多种途径对植物病害加以防治。根际促生菌的生物防治活性依赖于其在植物根际的定殖,并经由特定生防活性物质的分泌、对植物系统抗性的诱导来加以实现。利用根际促生菌在植物根际的定殖,可对植物病害病原菌的生长造成抑制,这对于一些难以使用化学药剂进行防治的植物病害十分关键。本文论述了根际促生菌的生物防治机理,并探讨了将根际促生菌用作植物病害的生物防治剂的可能性,可为生态农业的发展提供了新思路。
Plant growth promoting rhizobacteria(PGPR)is a type of soil bacteria that can enhance plant growth and disease resisting ability.Besides improving nutrients’absorption,plant substance accumulation,and promoting various growth parameters of physiological and biochemical indexes of plants,PGPR can also protect plants from diseases in various ways.The biological control activity of PGPR relies on the colonization of plant rhizosphere,which is realized by the secretion of specific biological control active substances and the inducing of systemic resistance of plants.The rhizosphere colonization of PGPR can inhibit pathogens,which is crucial to the control of some plant diseases that are difficult to be realized by chemical agents.This paper discusses the biological control mechanism of PGPR,and the possibility of using PGPR as biological control agent for plant diseases,which might provide new views for the ecological agriculture development.
作者
姬彦飞
董欣欣
田野
张杰
杨洪一
Ji Yanfei;Dong Xinxin;Tian Ye;Zhang Jie;Yang Hongyi(Key Laboratory of Saline-alkali Vegetation Ecology Restoration,Ministry of Education/College of Life Sciences,Northeast Forestry University,Harbin 150040)
出处
《中国农学通报》
2021年第14期141-149,共9页
Chinese Agricultural Science Bulletin
基金
国家自然科学基金面上项目“越橘microRNA分子挖掘及越橘与杜鹃花类菌根真菌互作中的microRNA解析”(31670605)
黑龙江省自然科学基金联合引导项目“蜡螟肠道降解聚乙烯微生物的分离鉴定及其关键酶特性的研究”(LH2019C005)
哈尔滨市科技创新人才项目“北虫草高产栽培技术及虫草产品研发”(2017RALXJ010)。
关键词
植物根际促生菌
生物防治
根际定殖
生防物质
系统抗性
plant growth promoting rhizobacteria
biological control
rhizosphere colonization
biocontrol substances
systemic resistance
