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采用杯碟法研究了放线菌菌株的抑菌活性。研究发现,4期菌株SY-5无论是活体还是发酵液对6种供试病原菌均表现出强烈的抑菌效果,发酵滤液稀释10倍后对玉米弯孢病菌的抑制率达81.8%。
The antibacterial activities of actinomycetes strains were studied by cup-plate method. The results showed that strain SY-5 showed a strong antibacterial activity against six tested pathogens, either in vivo or in fermentation broth. The inhibitory rate of SY-5 strain on C. curvatus was 81.8% after 10-fold dilution.