植物保护2026，Vol.52Issue(4)：110-119,176,11.DOI:10.16688/j.zwbh.2025424
芒果炭疽病3种优势病原菌的侵染特性及寄主范围
Infection characteristics and host range of three dominant pathogens causing mango anthracnose
摘要
Abstract
Mango is one of the most important tropical fruits,and anthracnose is a major fungal disease during both the growing period and postharvest storage,which severely restricts the development of the mango industry.In this study,two isolates of each dominant pathogen causing mango anthracnose:Colletotrichum asianum,C.siamense and C.fructicola,were selected to investigate their infection characteristics and host range.The results demonstrated that temperature and humidity had significant effects on the virulence of each isolate.C.fructicola GZ15-1 showed strong pathogenicity and could infect at 15-30℃.C.asianum YN55-1,FJ11-1 and C.siamense GD10-1 were able to infect at 25-30℃,while C.fructicola HN47-2 and C.siamense YN56-1-1 could infect at 28-30℃.The optimal humidity for successful infection of all isolates was 92％-100％.Significant differences were observed in the pathogenicity of different isolates to three mango cultivars:C.fructicola HN47-2 showed the strongest pathogenicity on'Tainong 1'fruits,while C.asianum FJ11-1 showed the strongest pathogenicity on'Xiangya'and'Jinhuang'fruits.Histological observations revealed that,except for GD10-1,conidia of all isolates began to germinate 3 h after inoculation,and the germination rate reached 100％24 h after inoculation.Significant differences were observed in appressorium formation rates among different isolates.Detached leaf inoculation assays on plants from 12 families showed that C.asianum could infect five plant species,including chili pepper,bok choy,banana,dragon fruit and plum;C.siamense could infect maize,plum,banana,dragon fruit and persimmon;and C.fructicola could infect eight plant species,including chili pepper,bok choy,maize,plum,banana,dragon fruit,persimmon and sweet potato.These findings provide a scientific basis for the integrated management of mango anthracnose.关键词
亚洲炭疽菌/暹罗炭疽菌/果生炭疽菌/侵染特性/寄主范围Key words
Colletotrichum asianum/C.siamense/C.fructicola/infection characteristic/host range分类
农业科技引用本文复制引用
舒娟,李其利,王睿,张苗苗,余知和,孙文秀,唐利华,黄穗萍,郭堂勋,陈小林..芒果炭疽病3种优势病原菌的侵染特性及寄主范围[J].植物保护,2026,52(4):110-119,176,11.基金项目
国家自然科学基金(32160622,32460654) （32160622,32460654）
广西科技创新平台计划项目(桂科LT2600640030) （桂科LT2600640030）
广西农业科学院基本科研业务专项(桂农科2021YT075,2025ZX04) （桂农科2021YT075,2025ZX04）
