Characterization of Diaporthe species associated with peach constriction canker, with two novel species from China

文献类型： 外文期刊

第一作者： Wang, Xianhong

作者： Wang, Xianhong;Guo, Yashuang;Du, Yamin;Yang, Ziling;Hong, Ni;Xu, Wenxing;Wang, Guoping;Hong, Ni;Xu, Wenxing;Wang, Guoping;Huang, Xinzhong

作者机构：

关键词： Constriction canker; Diaporthe; multi-gene phylogeny; Prunus persica; taxonomy; two new taxa

期刊名称：MYCOKEYS （ 影响因子：2.984； 五年影响因子：3.004 ）

ISSN： 1314-4057

年卷期： 2021 年 80 期

页码：

收录情况： SCI

摘要： Species of Diaporthe infect a wide range of plants and live in vivo as endophytes, saprobes or pathogens. However, those in peach plants are poorly characterized. In this study, 52 Diaporthe strains were isolated from peach branches with buds, showing constriction canker symptoms. Phylogenetic analyses were conducted using five gene regions: internal transcribed spacer of the ribosomal DNA (ITS), translation elongation factor 1-alpha (TEF), beta-tubulin (TUB), histone (HIS), and calmodulin (CAL). These results coupled with morphology revealed seven species of Diaporthe, including five known species (D. caryae, D. cercidis, D. eres, D. hongkongensis, and D. unshiuensis). In addition, two novel species D. jinxiu and D. zaofenghuang are introduced. Except for the previously reported D. eres, this study represents the first characterization of Diaporthe species associated with peach constriction canker in China, and contributes useful data for practicable disease management.

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