文献类型： 外文期刊

作者： Han Yong-chao ¹ ; Zeng Xiang-guo ¹ ; Xiang Fa-yun ¹ ; Zhang Qing-hua ¹ ; Guo Cong ¹ ; Chen Feng-ying ¹ ; Gu Yu-chen ¹ ;

作者机构： 1.Hubei Acad Agr Sci, Inst Ind Crops, Wuhan 430064, Hubei, Peoples R China

2.Hubei Key Lab Crop Dis Insect Pests & Corp Weeds, Key Lab Integrated Pest Management Crops Cent Chi, Wuhan, Hubei, Peoples R China

关键词： carbendazim; resistance frequency; Colletotrichum gloeosporioides; Colletotrichum species; point mutations; anthracnose

期刊名称：JOURNAL OF INTEGRATIVE AGRICULTURE （ 2020影响因子：2.848； 五年影响因子：2.979 ）

ISSN： 2095-3119

年卷期： 2018 年 17 卷 6 期

页码：

收录情况： SCI

摘要： The ascomycete fungus Colletotrichum gloeosporioides is a devastating plant pathogen with a wide host range and worldwide distribution. Carbendazim has been widely used to control anthracnose caused by the C. gloeosporioides complex in China for more than 30 years and resistance to carbendazim has been reported in China. A total of 125 Colletotrichum isolates of strawberry and yam were collected from different geographical regions in Hubei Province, China. Approximately 52.8% of Colletotrichum spp. isolates showed resistance to carbendazim. The isolates tested in this study belong to four species, and the frequencies of resistant isolates differed across Colletotrichum species. Resistant isolates were found in C. siamense and C. fructicola. In contrast, all isolates of C. gloeosporioides and C. aenigma were sensitive to carbendazim. Highly carbendazim-resistant isolates harbored the E198A mutation in the beta-tubulin 2 (TUB2) gene, whereas moderately carbendazim-resistant isolates harbored the F200Y mutation in the TUB2 gene. Carbendazim-sensitive Colletotrichum isolates in this study were not genetically similar enough to form a separate cluster from resistant isolates. The result of this study emphasizes the importance of knowing which Colletotrichum sp. is present, when strategies for disease control are made.