[New species of Actinomadura coeruleoviolacea sp. nov. and its antagonistic properties].

Eight strains of actinomycetes isolated from soil samples were described as representatives of Actinomadura coeruleoviolacea sp.nov. The species was characterized by straight and sometimes branching short chains of spores, smooth spores, blue aerial mycellium and violet soluble pigment. All the strains showed antibacterial activity when cultivated in liquid media. The pigment differed from all known pigments. It is probably a new natural compound.