黄瓜黑星病菌的生物学特性研究  

Biological characteristics of Cladosporium cucumerinum

作　　者：王育水[1] 王玉[1] 许会才[1] 刘永英[1] 姬生栋[2] 

机构地区：[1]焦作师范高等专科学校,河南焦作454001 [2]河南师范大学生命科学学院,河南新乡453002

出　　处：《湖北农业科学》2008年第1期62-64,共3页Hubei Agricultural Sciences

基　　金：河南省基础与前沿技术研究计划项目(072300430200)

摘　　要：黄瓜黑星病菌是引起黄瓜及其他葫芦科蔬菜病害的主要病源菌。探讨了温度、培养基酸碱度、光照、碳氮营养对病菌菌丝生长和产孢的影响。结果发现,黄瓜黑星病菌生长和产孢的适宜温度为15～25℃,最适温度为20℃,适宜pH值为5.0～6.5,最适pH值为6;在散射光下培养有利于菌丝生长和产孢;培养基碳源中,以葡萄糖和蔗糖最有利于病菌菌丝生长,以葡萄糖为碳源产孢最多;培养基氮源中,酵母提取物、硝酸钠、牛肉膏最有利于病菌菌丝生长和产孢。Cladosporium cucumerinum is the main pathogenic organism which lead Cucumis sativus and other vegetables of Cueurhitaceae to fall sick. This experiment studiedon the factors which affected hypha of Cladosporium cueumerinum growing and producing spores, basing on culture medium, temperature, pH of culture medium, illuminance, carbon nutrition and nitrogen nutrition. The results showed that the temperature was fitting for 15-25℃, 20℃ appeared the optimal temperature; euhure medium pH was fitting for 5.0-6.5; it was propitious of hypha growing and producing spores under scattering light; nitrogen nutrition relatively small impact on the pathogenic organism; glucose and saecharose were fit for hypha growing, glucose was fit for producing spores in many kinds of carbon nutritional culture medium.

关 键 词：黄瓜黑星病菌 菌丝生长 产孢 生物学特性 

分 类 号：S436.421.19[农业科学—农业昆虫与害虫防治] S601[农业科学—植物保护]