Identification and Characterization of Colletotrichum Species Associated with Anthracnose Disease of Plum

文献类型： 外文期刊

第一作者： Wang, Rui

作者： Wang, Rui;Ouyang, Dan;Lu, Mengmeng;Tang, Lihua;Chen, Xiaolin;Huang, SuiPing;Guo, Tangxun;Li, Qili;Wang, Rui;Ouyang, Dan;Lu, Mengmeng;Tang, Lihua;Chen, Xiaolin;Huang, SuiPing;Guo, Tangxun;Li, Qili;Wang, Rui;Lu, Mengmeng;Hsiang, Tom

作者机构：

关键词： Colletotrichum; morphology; pathogenicity; plum

期刊名称：PLANT DISEASE （ 影响因子：4.4； 五年影响因子：4.8 ）

ISSN： 0191-2917

年卷期： 2024 年 108 卷 9 期

页码：

收录情况： SCI

摘要： Plum (Prunus salicina Lindl.) is commercially cultivated worldwide for the high levels of nutrients in the fruit. In recent years, anthracnose has been severe in some plum planting areas in China, resulting in a large number of necrotic leaves, blight, and premature leaf fall. In this study, anthracnose samples of plum leaves were collected from Hezhou, Guilin, and Lipu in Guangxi Province and Meishan, Abe Tibetan, and Qiang Autonomous Prefecture of Sichuan Province. Characteristics of mycelia on potato dextrose agar, morphology of appressoria and conidia, and analysis of sequences of several marker regions (internal transcribed spacer [ITS] region, glyceraldehyde-3-phosphate dehydrogenase [GAPDH], chitin synthase [CHS-1], histone H3 [HIS3], actin [ACT], beta-tubulin [TUB2], and the intergenic region between apn2 and MAT1-2-1 [ApMat]). The resulting 101 Colletotrichum isolates obtained were identified as eight species: C. fructicola (50.5%), C. siamense (24.8%), C. karsti (8.9%), C. plurivorum (7.9%), C. aeschynomenes (3.9%), C. gloeosporioides (2%), C. celtidis (1%), and C. phyllanthi (1%). Representatives of all eight Colletotrichum species were found to cause disease on wounded leaves of plum seedlings in pathogenicity assays. As far as we are aware, this is the first report of anthracnose of plum caused by C. celtidis and C. phyllanthi in China.

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