Three New Records of Pathogens Causing Stem Blight on Vaccinium corymbosum in China

文献类型： 外文期刊

第一作者： Zhou, Yueyan

作者： Zhou, Yueyan;Tangtrakulwanich, Khanobporn;Chethana, Kandawatte Wedaralalage Thilini;Zhou, Yueyan;Wu, Linna;Ren, Kaixuan;Wang, Meng;Wang, Nannan;Li, Xinghong;Zhang, Wei;Yan, Jiye;Zhou, Yueyan;Chethana, Kandawatte Wedaralalage Thilini;Hyde, Kevin D.

作者机构：

关键词： Colletotrichum; Curvularia; Diaporthe; morphology; phylogeny; Koch's postulates; new host records

期刊名称：PLANTS-BASEL （ 影响因子：4.1； 五年影响因子：4.5 ）

ISSN： 2223-7747

年卷期： 2025 年 14 卷 5 期

页码：

收录情况： SCI

摘要： Stem blight is a significant disease affecting blueberries worldwide, caused by various pathogens. This study investigated stem blight disease in Ji'an, Jilin Province, China. Fungi isolated from diseased stems were identified as Colletotrichum temperatum, Curvularia austriaca, and Diaporthe unshiuensis based on morphological characters and multi-locus phylogenetic analyses using the internal transcribed spacer (ITS) region, glyceraldehyde 3-phosphate dehydrogenase (gapdh), chitin synthase (chs), actin (act), beta-tubulin (tub2), the translation elongation factor 1-alpha (tef1-alpha), calmodulin (cal), and histone 3 (his3) regions. Pathogenicity test was conducted on detached green blueberry shoots, all shoots inoculated by mycelium plugs presented necrotic lesions with dark brown margins, while the control (PDA plugs) group did not show any symptoms. Koch's postulates were confirmed by re-isolating the inoculated pathogen from the disease symptoms. The study provides three new host-pathogen records of fungi associated with blueberry stem blight.

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