摘要
采用菌核诱捕法从源于湖北省４０个县市的土壤样品中分离及鉴定同腐烂菌核相关的真菌。结果表明：重要的菌核寄生菌盾壳霉（Ｃｏｎｉｏｔｈｙｒｉｕｍｍｉｎｉａｔｎｓ）在湖北省分布于西北及西南部高海拔山区，表现出明显的地域性。除核盘菌（Ｓｃｌｅｒｏｔｉｎｉａｓｃｌｅｒｏｔｉｏｒｕｍ），盾壳霉还可寄生三叶草核盘菌（Ｓ．ｔｒｉｆｏｌｉｏｒｕｍ）和小核盘菌（Ｓ．ｍｉｎｏｒ）。盾壳霉菌丝生长和分生孢子萌发的适温为２０℃，菌丝生长的最适ｐＨ值为４，光对孢子的产生具明显的促进作用。此外，分生孢子萌发需９５％以上的空气相对湿度。
With the baiting technique using the sclerotia of Sclerotinia sclerotiorum,Coniothyroim minitans ,an important mycoparasite of the pathogen, was isolated and identifed from the soil samples collected from 40 counties of Hubei Province.The result showed that it mainly exists in the mountainous areas of the northwest and southwest Hubei Provincee. Besides S. sclerotiorum,it could parasitize S. trifoliourm and S. minor and no antibiosis against them was detected in the dual cultural tests.C .minitans could grow under 30 C, and the most optimium temperature for the mycelial growtyh and spore germination was 20 ℃. The pH value for its growth ranged from 2～11, the most optimium was 3～4.The spore germination needs more than 95%of the air relative humidity. Light treatment could promote its propagation.
出处
《华中农业大学学报》
CSCD
北大核心
1995年第2期125-130,共6页
Journal of Huazhong Agricultural University
基金
国家自然科学基金
关键词
核盘菌
盾壳霉
自然分布
湖北
Coniothyrium
minitans
Sclerotinia spp.natural distribution
Hubei Province
