Abstract
In an attempt to assess the taxonomic relationships among human (Corynebacterium haemolyticum), animal (Corynebacterium pyogenes bovis) haemolytio corynebacteria, typical corynebacteria (Corynebacterium diphteriae mitis, C. ovis, C. ulcerans) and group A and G streptococci, a number of biochemical parameters were established: the DNA content of G + C, the presence of the cytochrome system, composition of fatty acids in free lipids and production of carboxylic acids as end products of fermentation. It was found that according to the above criteria, streptococci differed significantly from the corynebacteria studied. In addition, it was possible to differentiate a subgroup of typically aerobic haemolytic corynebacteria (different from both human and animal corynebacteria), possessing a complete cytochrome system, producing propionic acid and having a different composition of fatty acids.
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