在筛选防治稻白叶枯病新抗生素的工作中,对筛选方法我们曾作了一些探讨,本文试图将分离到的链霉菌进行初步分类,并用二种细菌和二种真菌作为指示菌,观察各类群链霉菌的抗菌性质,同时测定它们对稻白叶枯病的防治效果,以比较不同类群和不同抗菌谱的链霉菌对稻白叶枯病防治效果的差别,寻求可以利用的某种联系,从而更有效地分离筛选放线菌。 In the screening of new antibiotics against bacterial leaf blight in the work, we have done some screening methods, this article attempts to initially classify the isolated Streptomyces, and two kinds of bacteria and two kinds of fungi as indicator bacteria observed The antibacterial properties of Streptomyces spp. And their control effects on rice bacterial leaf blight were also tested. The differences in the control effects of Streptomyces on different groups and different antibacterial spectrum against rice bacterial leaf blight were compared and some available links were found , So as to separate and screen actinomycetes more effectively.