生物灾害科学2026，Vol.49Issue(2)：319-325,7.DOI:10.3969/j.issn.2095-3704.2026.02.37
烟草靶斑病流行态势、病原遗传分化及生物防治进展
Epidemic trend,pathogen genetic differentiation,and biological control progress of tobacco target spot
摘要
Abstract
With global warming and changes in cropping systems,tobacco target spot caused by Rhizoctonia solani has evolved from a minor disease into a major limiting factor severely threatening global tobacco production.This review systematically summarizes the epidemiological characteristics,pathogen population genetic structure,and progress in biological control of the disease.Epidemiological analysis indicates that high temperature,high humidity,and soil environmental factors are key drivers of disease outbreaks.Pathogenic studies reveal a complex differentiation of anastomosis groups(AGs)within R.solani.While AG-3 remains the dominant population in China with distinct subgroup differentiation(AG-3 TB/PT/TM),the frequent emergence of new pathogenic groups such as AG-5,AG-6,and AG1-IB highlights an expansion in host range and increasing genetic complexity of the pathogen.Addressing the resistance and environmental risks associated with chemical control,this paper focuses on biological control strategies.It deeply analyzes the synergistic inhibitory mechanisms of antagonistic bacteria(e.g.,Bacillus spp.)mediated by volatile organic compounds(VOCs)and lipopeptides.In response to the severe challenge that resistance breeding and single control measures are highly susceptible to failure due to current pathogen genetic differentiation,this paper proposes a core academic viewpoint:shifting from a"single pathogen-host game"to a systematic management model based on"synergistic micro-ecological targeted regulation and immune induction".Furthermore,it discusses the application potential of microbial secondary metabolites and plant immune inducers.Finally,future perspectives on integrated management based on pathogen population dynamic monitoring,rhizosphere microbiome engineering,and big data-driven intelligent forecasting are proposed,aiming to provide a theoretical basis for the green and precise control of tobacco target spot.关键词
烟草靶斑病/立枯丝核菌/融合群/遗传分化/生物防治/精准防控Key words
tobacco target spot/Rhizoctonia solani/anastomosis group/genetic differentiation/biological control/precision control分类
农业科技引用本文复制引用
刘峰,丁建冰,郑陶娟,袁春辉,刘羽,唐利忠,黄宇,肖钦之..烟草靶斑病流行态势、病原遗传分化及生物防治进展[J].生物灾害科学,2026,49(2):319-325,7.基金项目
湖南省烟草公司永州市公司科技项目(YZ2023KJ02)和中国烟草总公司重大科技项目[(110202201027(LS-11))] （YZ2023KJ02）
