魔芋白绢病病原菌的初步研究  

Studies on Pathogenic Strains Causing Amorphalluskonjac White Rot

作　　者：马琼[1] 万左玺[1] 余展深[1] 

机构地区：[1]湖北民族学院生物科学与技术学院/湖北省生物资源保护与利用重点实验室,湖北恩施445000

出　　处：《湖北农业科学》2008年第5期539-541,共3页Hubei Agricultural Sciences

基　　金：国家科技攻关计划项目(2003BA901A05)

摘　　要：以不同地理来源的白绢病菌核为分离材料,分离获得了3株菌株,根据分离物的形态学及致病性特征,初步认为该病原菌为半知菌亚门,丝孢纲,无孢目,小核菌属的罗氏小核菌(Sclerotium rolfsiiSacc)。病原菌菌丝生长的最适温度为28～30℃,适宜生长pH值为5.0～8.0,适宜碳源为葡萄糖、麦芽糖、蔗糖、甘露聚糖,最适氮源为蛋白胨。Three pathogenic strains （Sr-01, Sr-02, Sr-03） were isolated successfully.According to the morphologic character and pathogenicity from white rot sclerotia on Amorphopalluskon jac plant. , three strains were identified as Sclerotium rolfsii Sacc.The optimal temperature of mycelial growth was 28-30℃ ,and the optimal pH range was 5.0-8.0.The suitable carbon were glucose, malt sugar, cane sugar and mannosan. The optimal nitrogen was peptone.

关 键 词：魔芋白绢病 病原 分离 生物学特性 

分 类 号：S632.3[农业科学—蔬菜学] S436.32[农业科学—园艺学]