摘要
采集并分离来源于吉林省10个地区的15株野生球孢白僵菌菌株,比较了各菌株孢子萌发率、菌落直径、产孢量、胞外蛋白酶产生水平等指标的差异。结果表明:孢子萌发率高的菌株类型为孢子型,菌落生长迅速的菌株类型为菌丝型,介于孢子型和菌丝型菌株生物学特性之间的菌株类型为混合型;胞外蛋白酶产生水平与菌落形态特征不具相关性。筛选出菌株D4-2-1、CHL20可作为生物防治菌株。
Fifteen wild strains of Beauveria bassiana were collected and isolated from 10 regions of Jilin province. Their spore germination rate, colony diameter, sporulation and extracellular protease production level were compared. The results indicated that high spore germination rate strains were the conidia type, fast growing strains of colony type were the hyphae type, and strains＇characteristics between the conidia type and the hyphae type were the mixed type, respectively. Protease activity test showed that there was no correlation between extracellular protease production level and colony morphology. In conclusion, the strains of D4-2-1 and CHL20 were potential strains for biological control.
出处
《吉林农业大学学报》
CAS
CSCD
北大核心
2012年第1期58-61,75,共5页
Journal of Jilin Agricultural University
基金
吉林省科技支撑计划重点资助项目(20080249)
关键词
球孢白僵菌
生物学特性
菌落形态
胞外蛋白酶产生水平
Beauveria bassiana
biological characteristics
colony morphology
extracellular protease production level
