[The nature of the luminescence of the heliomycin producer Actinomyces enissus].

Luminescence of Actinomyces enissus synthesizing heliomycin is caused by the action of UV; it is multicoloured, mosaic, and changes in the course of growth. Multicoloured luminescence is due to formation of substances with various colours of luminescence (antibiotics heliomycin and resistoflavin, coproporphyrins I and III, riboflavin, etc.); its mosaic character is caused by the presence in the population of variants with difference in the component composition of luminescent substances and the degree of differentiation of colonies.