Diversity and Virulence of Diaporthe Species Associated with Peach Trunk Diseases in China
文献类型： 外文期刊
作者： Zhou, Ying 1 ; Zhang, Wei 2 ; Abeywickrama, Pranami D. 2 ; He, Zhizheng 2 ; Zhang, Zhixiang 1 ; Li, Yonghua 2 ; Li, Shifang 1 ; Fan, Zaifeng 3 ; Yan, Jiye 2 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Coconstruct Minist & Prov, Inst Plant Protect, Beijing Key Lab Environm Friendly Management Fruit, Beijing 100097, Peoples R China
3.China Agr Univ, Coll Plant Protect, Beijing 100193, Peoples R China
关键词：
fungal trunk diseases; new host records; pathogenicity;
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： 2024 年 13 卷 22 期
页码：
收录情况： SCI
摘要： Peach (Prunus persica L.) is one of the most important and oldest stone fruits grown in China. Though Diaporthe species have more commonly been reported as plant pathogens, endophytes and saprophytes with a wide range of plant hosts, little is known about the Diaporthe species associated with peach trunk diseases in China. In the present study, forty-four Diaporthe isolates were obtained from trees with peach branch canker, shoot blight and gummosis symptoms in four provinces in China. Based on a combination of morphology and multi-locus sequence analysis of the rDNA internal transcribed spacer region (ITS), calmodulin (cal), translation elongation factor 1-alpha (tef1) and beta-tubulin (tub2), these Diaporthe isolates were assigned to four species. Detailed descriptions and illustrations of all of the species, D. arecae, D. caulivora, D. discoidispora and D. eres, are provided. This study further reports the first host association of D. caulivora and D. discoidispora on peaches worldwide. The pathogenicity experiment results revealed that D. arecae was the most aggressive species, whereas D. discoidispora was the least aggressive on detached peach shoots. This study provides new insights into the fungi associated with peach trunk diseases in China, and the results of this study may help to facilitate routine diagnosis and planning of suitable plant disease management strategies.
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