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Alternaria species infecting potato in southern China

文献类型： 外文期刊

作者： Zhao, Juan 1 ; Ma, Guo-Ping 1 ; Liu, Yue-Yang 1 ; Wu, Xue-Hong 1 ;

作者机构： 1.China Agr Univ, Dept Plant Pathol, Beijing 100193, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Inst Plant & Environm Protect, Beijing 100097, Peoples R China

关键词： Alternaria species; histone 3 gene; morphological characteristics; PCR-RFLP; Solanum tuberosum

期刊名称：CANADIAN JOURNAL OF PLANT PATHOLOGY （ 影响因子：2.442； 五年影响因子：1.993 ）

ISSN： 0706-0661

年卷期： 2018 年 40 卷 2 期

页码：

收录情况： SCI

摘要： Potato leaves with symptoms of foliar diseases were collected from eight different geographical areas in southern China. A total of 109 Alternaria isolates were recovered and identified to three species according to morphological characteristics, nucleotide sequencing and PCR-RFLP analysis. Three Alternaria species were recovered, of which A. tenuissima was the most common, followed by A. alternata and A. solani. Pathogenicity tests indicated that all species caused foliar symptoms on potato cultivar 'Favorite'. Compared with earlier results reported in 2010-2013 in northern China, the proportion of A. alternata isolates was notably increased, while the number of A. solani isolates was lower. This study provides a survey of the Alternaria species composition associated with potato foliar diseases in southern China.

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