Leaf Spot on Sweet Potato (Ipomoea batatas) Caused by Stemphylium solani, a New Disease in China

文献类型: 外文期刊

第一作者: Chai, A-Li

作者: Chai, A-Li;Du, Gong-Fu;Shi, Yan-Xia;Xie, Xue-Wen;Li, Bao-Ju

作者机构:

关键词: Ipomoea batatas;new disease;Stemphylium solani;sweet potato

期刊名称:JOURNAL OF PHYTOPATHOLOGY ( 影响因子:1.789; 五年影响因子:1.574 )

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收录情况: SCI

摘要: During 2010-2011, a severe leaf spot disease of sweet potato (Ipomoea batatas) was found in Haikou City, Hainan province of China. The disease is characterized with large, irregular, brown, necrotic lesions on the margin or in the centre of leaves. A species of Stemphylium was consistently recovered from pieces of symptomatic tissues on PDA. Based on morphological characteristics and molecular identification by rDNA-ITS gene analysis, the fungal species was identified as Stemphylium solani Weber, and its pathogenicity was confirmed by Koch's postulates. This is the first report of leaf spot on sweet potato caused by S.solani in China.

分类号: Q945

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