桑枝枯菌核病病原菌的生物学特性研究  

Biological Characteristics of the Sclerotinia sclerotiorum of the Mulberry

作　　者：浦冠勤[1] 毛建萍[1] 

机构地区：[1]苏州大学生命科学学院,苏州215006

出　　处：《蚕业科学》2002年第2期87-90,共4页ACTA SERICOLOGICA SINICA

摘　　要：从发病桑树上分离到桑枝枯菌核病病原菌的纯菌种 ,并对该菌的培养性状和生物学特性进行了调查和研究。结果表明 :桑枝枯菌核病病原菌适于在PDA培养基和桑叶汁培养基上生长 ,其生长温度范围为 8～ 30℃ ,最适生长温度为 2 0～ 2 5℃ ,生长pH值范围为 1～ 12 ,最适生长pH值为 5～ 8,菌丝与菌核的生长情况大致相同 ;菌核在适宜的温湿度条件下能够产生子囊盘和子囊孢子 ,子囊孢子椭圆形 ,大小 7～ 14 μm× 3～ 7μm。The Sclerotinia sclerotiorum was isolated from the diseased mulberry branches.The cultural properties and biological characters of the pathogen were studied.The pathogen grew well on PDA medium and the mulberry leaf juice medium.The temperature for growth of the pathogen ranged from 8℃ to 30℃,and the favorable temperature was from 20℃ to 25℃.The pH value for the pathogen growth was 1～12,and the favorable pH value was 5～8.The growing conditions of the sclerotium were similar to that of the mycelium.The sclerotium produced apothecium and ascospores.The ascospore was elliptical and about 7～14 μm×3～7 μm in size.

关 键 词：病原菌 生物学特性 桑枝枯菌核病 菌丝 菌核 温度 PH值 

分 类 号：S888.71[农业科学—特种经济动物饲养]