title: [Isolation of peptide antibiotic virginiamycin components and selection of their producer Streptomyces virginiae].
abstract: A method for chromatographic separation and quantitative determination of individual components of the antibiotic virginiamycin, produced by microbiological synthesis (Streptomyces virginiae strain 147), is described. The components, M1-2 and S1-5, were isolated from fermentation broth and identified by HPTLC and HPLC (the results obtained using the two methods correlate well with each other). Conditions of culturing of the producer and compositions of nutritive media were optimized. Using UV irradiation as a mutagenic factor, the producer was selected for increased level of synthesis of the antibiotic; this was achieved by inducing mutations that impart resistance to virginiamycin and meta-fluorophenylalanine, an analog of phenylalanine.
authors.affiliation: State Research Institute of Genetics and Breeding of Industrial Microorganisms, Moscow, 113545 Russia.
authors.forename: V I
authors.initials: VI
authors.lastname: Zvenigorodskiĭ
authors.forename: B V
authors.initials: BV
authors.lastname: Tiaglov
authors.forename: T A
authors.initials: TA
authors.lastname: Voeĭkova
mesh_terms: D000900:Anti-Bacterial Agents / Q000737:chemistry* / Q000302:isolation & purification; D002851:Chromatography, High Pressure Liquid; D009154:Mutation; D010446:Peptide Fragments / Q000737:chemistry / Q000302:isolation & purification; D013302:Streptomyces / Q000737:chemistry* / Q000302:isolation & purification; D014769:Virginiamycin / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D000900:Anti-Bacterial Agents; D010446:Peptide Fragments; D014769:Virginiamycin