苦参有效成分对辣椒枯萎菌的抑菌活性  

Antifungal Activity of Sophora flavescens Ait Extracts Against Capsicum Blight

作　　者：郑玉艳[1] 

机构地区：[1]辽宁农业职业技术学院,辽宁营口115009

出　　处：《北方园艺》2011年第22期124-125,共2页Northern Horticulture

基　　金：国家"863"计划资助项目(2004AA247010)

摘　　要：采用生长速率法和悬滴法测试了不同浓度苦参提取物、黄酮类化合物及生物碱对辣椒枯萎病的抑菌活性。结果表明:苦参提取物对辣椒枯萎菌菌丝生长和孢子萌发均有很强的抑制作用。在供试质量浓度40g/L时,对辣椒枯萎菌菌丝生长、孢子萌发抑制率分别达到94.48%、89.01%;并且黄酮类化合物抑菌活性显著高于生物碱。The crude extracts of Sophora flavescens Ait and flavone and alkaloid were bioassayed by using growth rate and pendant-drop methods for antifungal activity of Capsicum blight at different concentrations.The results showed that crude extracts performed significant antifungal activity.The inhibition rate was 94.48% on mycelium growth and the inhibition rate on the spore germination was 89.01% as the concentration was 40 g/L.And the antifungal activity of flavone were more active than alkaloid.

关 键 词：苦参 辣椒枯萎病 抑菌活性 

分 类 号：S482.292[农业科学—农药学]