Taxonomical study of the reference strain ofStreptomyces erythreus

The reference strainStreptomyces erythreus formed filamentous growth with Retinaculum-Apertum forms and narrow, long, extended spirals. Under defined conditions it produced abundant red and white mycelium; for its taxonomical characterization the production of red mycelium according to which the strain is classified in a certain series is conclusive. Chains of spiny spores were observed in the electron microscope. In its growth requirements (taxonomically important carbon sources) this strain differed from other strains of the genusStreptomyces. Components of the cell wall type IV were demonstrated in its mycelium.