Identification and Characterization of Colletotrichum Species Associated with Cherry Leaf Spot Disease in China
文献类型： 外文期刊
作者： Zhou, Yueyan 1 ; Zhang, Wei 1 ; Li, Yameng 1 ; Ji, Shuxian 1 ; Li, Xinghong 1 ; Hyde, Kevin D. D. 2 ; Zhang, Kaichun 3 ; Phillips, Alan J. L. 4 ; Manawasinghe, Ishara S. S. 5 ; Yan, Jiye 1 ;
作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing Key Lab Environm Friendly Management Fruit, Beijing 100097, Peoples R China
2.Mae Fah Luang Univ, Ctr Excellence Fungal Res, Chiang Rai 57100, Thailand
3.Beijing Acad Forestry & Pomol Sci, Beijing 100093, Peoples R China
4.Univ Lisbon, Biosyst & Integrat Sci Inst BioISI, Fac Ciencias, P-1749016 Lisbon, Portugal
5.Zhongkai Univ Agr & Engn, Innovat Inst Plant Hlth, Guangzhou 510225, Peoples R China
关键词： morphological characteristics; new host record; pathogenicity; phylogenetic analysis
期刊名称：PLANT DISEASE （ 影响因子：4.5； 五年影响因子：5.0 ）
ISSN： 0191-2917
年卷期： 2023 年 107 卷 2 期
页码：
收录情况： SCI
摘要： Leaf spot is a common and serious disease of sweet cherry worldwide and has become a major concern in China. From 2018 to 2020, disease investigations were carried out in Beijing City, Sichuan, Shandong, and Liaoning Provinces in China, and 105 Colletotrichum isolates were obtained from diseased samples. Isolates were identified by morphological characterization coupled with multigene phylogenetic analyses based on six loci (internal transcribed spacer region, glyceraldehyde 3-phosphate dehydrogenase, calmodulin, actin, chitin synthase, and beta-tubulin). A total of 13 Colletotrichum species were identified, namely Colletotrichum aenigma, C. gloeosporioides, C. fructicola, C. siamense, C. temperatum, C. conoides, C. hebeiense, C. sojae, C. plurivorum, C. karsti, C. truncatum, C. incanum, and C. dematium. Among these, C. aenigma (25.7%) was the most prominent species isolated from diseased leaves, followed by C. gloeosporioides (19.0%) and C. fructicola (12.4%). Pathogenicity was tested on detached leaves of cv. 'Tieton' and 'Summit' and young seedlings of cv. 'Brooks' under greenhouse conditions. All 13 species were pathogenic to cherry leaves, and C. aenigma, C. conoides, and C. dematium showed high levels of virulence. Seedlings inoculated with the isolates developed similar symptoms to those seen in the orchards. This study provides the first reports for 11 of the 13 Colletotrichum species on sweet cherry in the world, excluding C. aenigma and C. fructicola. This is the first comprehensive study of Colletotrichum species associated with cherry leaf spot in China, and the results will provide basic knowledge to develop sustainable control measures for cherry leaf spot.
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