Alternaria species infecting potato in southern China
文献类型: 外文期刊
第一作者: Zhao, Juan
作者: Zhao, Juan;Ma, Guo-Ping;Liu, Yue-Yang;Wu, Xue-Hong;Zhao, Juan
作者机构:
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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