Аннотация
The morphological mutation of the museum strain Streptomyces canosus 71, its variants obtained under the influence of γ- and UV-rays and new variants selected after the combined irradiation was studied. The lipids quality of Streptomyces canosus 71 and new variants is identical. The quantity of steroids in new variants is increased to 174.7 and 201.0% to control. The unsaturated fatty acid????s, such as С15:1, С16:1, С18:1 predominated in lipids of new variants.
The possibility of application the combined irradiation for obtaining the new Streptomycetes strains, producing the biologically active substances (phospholipids, steroids, unsaturated fatty acids) was shown.