The picture shows the colonies of Streptomyces aureofaciens growing in Petri-dish.
Taxonomy of Streptomyces aureofaciens is the folowing:
Bacteria
Actinobacteria
Actinobacteridae
Actinomycetales
Streptomycineae
Streptomycetaceae
Streptomyces
S. aureofaciens is the producer of many tetracycline-type antibiotics. The main tetracycline of the endustrial bacetrial strain is described chemically as 4-(dimethylamino)-1, 4, 4a, 5, 5a, 6, 11, 12a-octahydro-3, 6, 10, 12, 12a-pentahydroxy-6-methyl-1, 11-dioxo-2-napthacenecarboxamide. It was isolated from Streptomyces aureofaciens and produced in industrial size. The medicine Sumycin for oral administration contains this tetracycline. The tetracyclines are primarily bacteriostatic and are thought to exert their antimicrobial effect by the inhibition of protein synthesis.