[Biosynthesis of nactinic compounds by population variants of macrotetrolide-producing streptomycetes].

Strains of Streptomyces chrysomallus subsp. macrotetrolidi and soil isolates of Streptomyces spp. producing ammonium specific agents were studied and correlation between the synthesis of nactinic acids and their oligomers and the hydrophobic nature of the active variant in the streptomycete population was shown.