Identification and characterization of Colletotrichum species associated with anthracnose disease of banana
文献类型： 外文期刊
作者： Huang, Rong 1 ; Sun, Wenxiu 1 ; Wang, Luru 2 ; Li, Quli 2 ; Huang, Suiping 2 ; Tang, Lihua 2 ; Guo, Tangxun 2 ; Mo, Jiany 1 ;
作者机构： 1.Yangtze Univ, Coll Life Sci, Jingzhou 434025, Hubei, Peoples R China
2.Guangxi Acad Agr Sci, Inst Plant Protect, Nanning 530007, Guangxi, Peoples R China
3.Guangxi Key Lab Biol Crop Dis & Insect Pests, Nanning 530007, Guangxi, Peoples R China
4.Univ Guelph, Sch Environm Sci, Guelph, ON, Canada
关键词： banana; Colletotrichum; pathogenicity; phylogenetic analysis
期刊名称：PLANT PATHOLOGY （ 影响因子：2.59； 五年影响因子：2.924 ）
ISSN： 0032-0862
年卷期： 2021 年 70 卷 8 期
页码：
收录情况： SCI
摘要： Banana (Musa spp.) is one of the five most abundantly produced fruits in the world and is widely planted in tropical and subtropical areas. Banana anthracnose is one of the main diseases during the growth and postharvest storage period of banana, seriously affecting quality and production. In this study, 24 samples of banana anthracnose were collected near the cities Nanning, Qinzhou, Baise, and Chongzuo in Guangxi Province, China. Based on colony features, conidial and appressorial morphology, and sequence analysis of several genomic regions (internal transcribed spacer [ITS] region, glyceraldehyde-3-phosphate dehydrogenase [GAPDH], actin [ACT], beta-tubulin [TUB2], chitin synthase [CHS-1], calmodulin [CAL], and the intergenic region of apn2 and MAT1-2-1 [ApMAT]), the 32 Colletotrichum isolates obtained were identified as five species: C. fructicola (41%), C. cliviicola (28%), C. siamense (16%), C. karstii (9%), and C. musae (6%). A conidial suspension (10(6) spores/ml) was used to inoculate banana seedlings for pathogenicity tests by applying 20 mu l to wound sites. Lesions caused by C. musae developed most rapidly while those of C. karstii took the longest time to develop. This is the first report of C. siamense, and C. karstii associated with banana anthracnose in China, and the first report of C. fructicola and C. cliviicola associated with banana anthracnose worldwide.
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