Diaporthe arecae is a new pathogen causing Chinese olive ( Canarium album ) dieback in China

文献类型： 外文期刊

第一作者： Lai, Duo

作者： Lai, Duo;Wang, Delin;Shao, Xuehua;Qin, Jian;Zhuang, Qingli;Xiao, Weiqiang;Lai, Ruilian;Ni, Xiaorong

作者机构：

关键词： Canarium album; Diaporthe arecae; Pathogenicity; Molecular identification

期刊名称：PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY （ 影响因子：2.8； 五年影响因子：2.8 ）

ISSN： 0885-5765

年卷期： 2024 年 133 卷

页码：

收录情况： SCI

摘要： Chinese olive (Canarium album Raeusch.) is an economically important fruit crop with a long history in China as a medicinal plant. However, it is prone to fungal pathogens. In recent survey, Chinese olive trees showing shoot and twigs dieback, and in severe cases, leaf defoliation and branches withered, were observed in the field. These symptoms were never observed in Chinese olive and can be considered a novel dieback disease. The responsible pathogen was isolated and purified from shoot and twigs samples of dieback diseased Chinese olive collected from in Fujian Province, and was identified as Diaporthe arecae based on morphological characteristics and multigenes phylogenetic analysis. Subsequent pathogen inoculations on detached leaves and branches and in seedlings confirmed its pathogenicity in Chinese olive causing dieback disease, in accordance to Koch's postulates. This is the first report of dieback disease caused by D. arecae in Chinese olive worldwide.

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