Antibacterial Activity of Sophora flavescens Extracts against Pepper Blight (Fusarium oxysporum)  

苦参对辣椒枯萎病的抑菌活性(英文)

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：《Plant Diseases and Pests》2011年第3期59-61,共3页植物病虫害研究（英文版）

基　　金：Supported by National"863"Project(2004AA247010)~~

摘　　要：[ Objectlve] The paper was to explore the antibacterial activity of S. fiavescens extracts against pepper blight. [ Methods] Growth rate method and sus- pend-drop method were used to measure the inhibition effect of different solvents and concentrations of S. fiavescens extracts on F. oxysporum. [Result] The inhibi- tion rate of etude extracts of S. flavescens extracted by ethyl acetate and acetone was significantly higher than that of ethanol. With the increasing concentration of ethyl acetate crude extracts of S. flavescens, its inhibition effect against myeelial growth and spore germination of F. oxysporum signitieantly increased. When the mass concentration was 40 g/L, its inhibition rates against myeelial growth and spore germination of F. oxysporum were 94.48% and 89.01%, respectively. [ Con- clusion] The active substance contained in S. flavescens roots had strong inhibition activity against pepper blight, which had the potential value for further research and development.[ Objectlve] The paper was to explore the antibacterial activity of S. fiavescens extracts against pepper blight. [ Methods] Growth rate method and sus- pend-drop method were used to measure the inhibition effect of different solvents and concentrations of S. fiavescens extracts on F. oxysporum. [Result] The inhibi- tion rate of etude extracts of S. flavescens extracted by ethyl acetate and acetone was significantly higher than that of ethanol. With the increasing concentration of ethyl acetate crude extracts of S. flavescens, its inhibition effect against myeelial growth and spore germination of F. oxysporum signitieantly increased. When the mass concentration was 40 g/L, its inhibition rates against myeelial growth and spore germination of F. oxysporum were 94.48% and 89.01%, respectively. [ Con- clusion] The active substance contained in S. flavescens roots had strong inhibition activity against pepper blight, which had the potential value for further research and development.

关 键 词：S. flavescens Pepper blight Antlbacterial activity China 

分 类 号：S436.418[农业科学—农业昆虫与害虫防治]