番茄叶霉病菌对多菌灵和乙霉威的抗药性与电导率关系的初步研究  

A Preliminary Study on Detecting Resistance of Fulvia fulva to Carbendazim and Diethofencarb with Conductometer

作　　者：陈俊美 王美琴[2] 孔令斌[2] 

机构地区：[1]偏关县农业局,山西偏关036400 [2]山西农业大学农学院,山西太谷030801

出　　处：《山西农业科学》2007年第4期61-63,共3页Journal of Shanxi Agricultural Sciences

基　　金：山西省科技攻关项目(033006);山西农业大学创新基金项目(2004007)

摘　　要：敏感菌株TY4对多菌灵和乙霉威的最低抑制浓度分别是0.5和5μg/m l,抗性菌株LX13在1 000μg/m l的多菌灵或乙霉威的浓度下均能正常生长。5和10μg/m l多菌灵盐酸盐溶液和乙霉威丙酮溶液同时处理敏感菌株和抗性菌株的菌丝体,用电导仪测定溶液电导率的动态变化,结果表明:在敏感菌株存在时,多菌灵盐酸盐溶液和乙霉威丙酮溶液2 h后的电导率均降低,而抗性菌株存在的溶液中电导率则未见下降。The minimum inhibitory concentration （MIC）of sensitive isolate TY4 to carbendazim and diethofencarbt were 0.5 and 5μg/ml respectively. The mycelial of the resistance strain LX13 can grow on PDA containing 1 000 μg/ml The susceptible and resistant isolate of Fulviafulva Ciferri to carbendazim and diethofencarb were compared with regard to mycelial growth and the extreme value of conductance under the treatment of earbendaz/m hydrechloride and diethofencarb acetone with the concontration of 5 or 10 μg/ml, the conductivity of sensitive isolate TY4 showed a decreasing tread,but that of resistant isolate LX13 only changed a little.

关 键 词：叶霉病菌 电导率 多菌灵 乙霉威 抗药性 

分 类 号：S436.412.1[农业科学—农业昆虫与害虫防治]