[Effect of Distant Interactions on Growth and Development of Streptomycetes].

Regulation of streptomycete growth and development by distant interactions of physical nature was shown using a vial-in-vial experimental setup, providing physical isolation of the inducer and detector cultures. Some effects of distant interaction were observed with Streptomyces netropsis proliferating submerged culture as an inducer and a surface culture of the same strain as a detector. The growth rate of the detector strain doubled. Spore germination was stimulated, as was indicated by a 30% increase in the number of colony-forming units (CRU) in the detector culture plated as a spore suspension. The phase variation spectrum also changed, with an increased share of the colonies of the morphotype predominant under the standard conditions.