[Isolation of highly active strain producing the antistaphylococcal antibiotic batumin].

The use of chemical and UV-induced mutageneses allowed us to increase the biosynthetic activity of the strain capable of producing new antistaphylococcal antibiotic, batumin. The strain of Pseudomonas batumici N17 producing 87-100 mg batumin per liter culture liquid was selected. Its activity was 3.5-5 times higher than the activity of the most potent natural strain. P. batumici N17 was shown to be stable in relation to the synthesis of batumin.