[A new subspecies of Streptomyces griseoflavus].

In the process of research of microorganism ecology on Dun Huang freseo a strain of Streptomyces culture No. 25706 was isolated. Its morphological cultural characteristics and physiological properties as well as antimicrobial spectrum were studied. It is near to Streptomyces griseoflavus as described in the literature, but there are some significant differences between the two strains. Therefore, it was considered, to be a new subspecies and named Streptomyces griseoflavus subsp. dunhuangensis n. subsp.