Study on Pu-erh Tea Methanol Extracts on Antibacterial Activity of Several Plant Pathogens  

普洱茶醇提物对几种植物病原菌抑菌活性的研究(英文)

作　　者：王勇[1] 李俊凯[1] 张莉萍[1] 杜铁钢[1] 方祖凯[1] 

机构地区：[1]长江大学湖北省涝渍灾害与湿地农业重点实验室,湖北荆州434025

出　　处：《Agricultural Science & Technology》2010年第2期137-139,共3页农业科学与技术（英文版）

基　　金：Support by National Natural Science Foundation of China(30971948);the Key Project of Chinese Ministry of Education(208091);Science and Technology Program of Hubei Education Department(Q200712002)~~

摘　　要：[Objective] The aim was to study Pu-erh tea methanol extracts on antibacterial activity of several plant pathogens and provide reference for application of Pu-erh tea in agriculture disease prevention and control.[Method]The inhibitive effect of Pu-erh tea methanol extracts on several plant pathogens was studied by adopting mycelium growth rate method.[Result] The results showed that Pu-erh tea methanol extracts had inhibitive effects on Thanatephorus cucomeris(Frank)Donk,Fusarium oxysporum f.sp.niveum,Fusa...[目的]研究普洱茶醇提物对几种植物病原菌的抑菌活性,为普洱茶在农业病害防治方面的应用提供参考。[方法]利用菌丝生长速率抑制法研究普洱茶醇提物对水稻纹枯病、西瓜枯萎病、棉花枯萎病、棉花黄萎病4种植物病原菌的抑制作用。菌丝生长抑制率=(对照组菌丝生长直径-处理组菌丝生长直径)/(对照组菌丝生长直径-菌饼直径)×100%。[结果]普洱茶醇提物对水稻纹枯病菌、西瓜枯萎病菌、棉花枯萎病菌和棉花黄萎病菌均有一定的抑制作用。其中,对水稻纹枯病抑制作用最好,其EC50为1435.5mg/L;对棉花枯萎病的抑制作用最小,其EC50为3013.0mg/L。[结论]普洱茶醇取物在植物病害防治和新型杀菌剂开发方面具有潜在功能。

关 键 词：Pu-erh tea Methanol extract Antibacterial activity 

分 类 号：S482.2[农业科学—农药学]