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中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (4): 212-214.

• 植物保护 农药 • 上一篇    下一篇

柴胡根腐病致病菌生物学特性研究初报

李 勇,丁万隆,刘时轮,等   

  • 收稿日期:2008-11-21 修回日期:2009-01-13 出版日期:2009-02-20 发布日期:2009-02-20

Preliminary study on biological characteristics of root rot pathogen of Bupleurum chinense DC.

  • Received:2008-11-21 Revised:2009-01-13 Online:2009-02-20 Published:2009-02-20

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摘要： 根腐病是对柴胡为害最为严重的病害之一，本文对该病病原菌的生物学特性进行了研究。结果表明，致病菌生长最适温度为25～30℃，最适pH6～8，在麦汁培养基上较在PDA培养基上容易产孢。孢子萌发的最适条件是20～25℃，pH4～6和100%相对湿度。孢子在25℃水滴中3 h后开始萌发，10 h时全部萌发，孢子致死温度为51℃/10 min。

关键词: 水杨酸, 水杨酸, 黄瓜, 萌发种子, 抗冷性

Abstract: Root rot disease is one of the most important diseases of Bupleurum chinense DC, biological characters were studied in this paper. Results showed that the optimal temperature and pH of it were 25～30℃ and pH6～8. Also, we found that, pathogen isolated sporulated easier on oatmeal medium than PDA medium. The optimal condition for conidia germination was 20～25℃, pH4～6 and relative humidity 100%. Conidia of pathogen will begin to germinate in water drop 3 hours later, and germinated thoroughly after 10 hours, the lethal temperature of conidia was 51℃ for 10 minutes.

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