A numerical taxonomic study of coryneform and related bacteria

Journal of General Microbiology
D Jones


Two hundred and thirty-three strains of coryneform bacteria, including representatives of the genera Arthrobacter, Brevibacterium, Cellulomonas, Corynebacterium, Erysipelothrix, Jensenia, Kurthia, Listeria, Microbacterium, Mycobacterium, Nocardia and Propionibacterium and other related bacteria, were studied using 173 morphological, physiological and biochemical tests. The bacteria were grown on a soil extract medium which allowed growth of all the strains, and all were incubated at 30 degrees C. The results were subjected to computer analysis. The majority of the strains grouped into eight main clusters representing: (A) Lactobacillus, Listeria, Microbacterium thermosphactum and Streptococcus faecalis; (B) Erysipelothrix and Streptococcus pyogenes; (C) animal corynebacteria and Microbacterium flavum; (D) Cellulomonas and related bacteria; (E) Propionibacterium; (F) Arthrobacter, Brevibacterium, Kurthia and Mycobacterium rhodochrous; (G) plant pathogenic corynebacteria; (H) Nocardia. Based on these clusters, several recommendations are made regarding the classification of the coryneform area. (i) The members of clusters A and B at present placed in the Corynebacteriaceae would seem better moved to the Lactobacillaceae. (ii) The...Continue Reading


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