Antifungal activity of the osthol derivative JS-B against Phytophthora capsici

文献类型: 外文期刊

第一作者: Wang, Chun-Mei

作者: Wang, Chun-Mei;Guan, Wei;Fang, Shu;Chen, Hao;Li, You-Qin;Fan, Yong-Jian;Shi, Zhi-Qi;Wang, Chun-Mei;Guan, Wei;Fang, Shu;Chen, Hao;Li, You-Qin;Fan, Yong-Jian;Shi, Zhi-Qi;Wang, Chun-Mei;Guan, Wei;Fang, Shu;Chen, Hao;Li, You-Qin;Fan, Yong-Jian;Shi, Zhi-Qi;Cai, Chun

作者机构:

关键词: antifungal;pepper blight;Phytophthora capsici;ultrastructure

期刊名称:JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH ( 影响因子:1.569; 五年影响因子:1.598 )

ISSN: 1028-6020

年卷期: 2010 年 12 卷 8 期

页码:

收录情况: SCI

摘要: JS-B (C12H10O3) is a derivative compound of osthol. The antifungal properties of JS-B were tested against 10 economically important plant pathogens. JS-B was effective in inhibiting the mycelial growth of Phytophthora capsici, and its inhibition on different stages of the life cycle of P. capsici was observed. The 50% effective concentration (EC50) of JS-B on mycelial dry weight and zoospore germination of P. capsici was 43.74 and 86.03g/ml, respectively. The rupture of released zoospores induced by JS-B was reduced by the addition of 100mM glucose. The ultrastructural study showed that JS-B caused destruction of most of the mitochondrions, the concentration of cell nuclear, and the existing vesicles. When compared with dimethomorph, the activity of JS-B on P. capsici was determined under pot conditions. The result showed that JS-B has a curative effect on pepper blight.

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