Development of a chemically defined medium for the production of the antibiotic platensimycin by Streptomyces platensis.

The actinomycete Streptomyces platensis produces two compounds that display antibacterial activity: platensimycin and platencin. These compounds were discovered by the Merck Research Laboratories, and a complex insoluble production medium was reported. We have used this medium as our starting point in our studies.