Identification of Some Streptomycetes Producing Oxytetracycline

Summary: A study was made of Streptornyces rimosusand mutant strains to compare the phenotype of high and low oxytetracycline producers. Strains were identified using a probabilistic identification matrix for the genusStreptomyces.Mutant strains separated into two groups: high-titre strains and blocked mutants. The former identified with theS. rimosuscluster whereas the latter were not identified. Two further oxytetracycline producers identified with theStreptornyces lydicuscluster.