苹果叶表附生微生物区系及其有益菌的研究　Ⅱ、有益芽孢杆菌的筛选、初步鉴定和电镜观察

A Preliminary Studies on the Epiphytic Microorgnism of the Apple Phylloplane and the Beneficial Microorgnism Ⅱ、The Sift Identification, and Scanning Elemicroscope Observation on the Beneficial Microorgnisms

在分析了同一生态条件下苹果褐斑病抗感品种的叶部微生物类群的基础上，从已获得的７株Ｂａｃｉｌｕｓ中筛选出３株普遍对苹果轮纹病、炭疽病、霉心病具拮抗作用的菌株，再通过对其菌体代谢液中激素的定性定量分析，筛选出Ｂ０１７（经鉴定为Ｂａｃｉｌｕｓｃｅｒｅｕｓ）作为本实验的益菌．

In the laboratory studies, Strain B 017 isolated from the apple phylloplane showed extensive antagonistic effect against Macrophoma kawatsukai Alternaria alternata, Colletortrichum gloeosporioides and higher quantity phytohormones in its metabolites The observation with the scanning electron-mieroscope indicated that strain B 017 could be clonized on the phylloplane The routine procedure of bacterial identification showed that strain B 017 belong to the species Bacillus cereus