A Numerical Taxonomic Study of Coryneform and Related Bacteria

Abstract

S U M M A R YTwo 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 I 73 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 "C. The results were subjected to computer analysis. The majority of the Arthrobacter is a large loose taxon and it is premature to decide on its taxonomic rank. The genus Brevibacterium should be retained for B. linens and closely related strains. (v) The cellulolytic forms of Nocardia should be removed from the genus ; they are however quite distinct from Cellulomonas.

Clavibacter: a New Genus Containing Some Phytopathogenic Coryneform Bacteria, Including Clavibacter xyli subsp. xyli sp. nov., subsp. nov. and Clavibacter xyli subsp. cynodontis subsp. nov., Pathogens That Cause Ratoon Stunting Disease of Sugarcane and Bermudagrass Stunting Disease

“…There is little consensus as to how the phytopathogenic coryneform bacteria containing 2,4-diaminobutyric acid in their cell wall peptidodglycans should be classified, except that they should be removed from the genus Corynebacterium (7, 15,23,50). It is interesting that the separation of phytopathogenic coryneform bacteria into four groups based on the diamino acids in their peptidoglycans (Table 4) agrees exactly with the separation obtained by Dye and Kemp (16) in their numerical phenetic analysis of the phytopat hogenic coryneform bacteria.…”

Numerical Taxonomy of Phylloplane Bacteria Isolated from Lolium perenne

“…Corynebacterium betae NCPPB375 was recovered in phenon 28. Chemotaxonomic (Keddie & Cure, 1977) and numerical phenetic data (Jones, 1975) indicate that C. betae should be reclassified in the coryneform taxon Curtobacterium (Yamada & Komagata, 1972). The 'coryneform' bacteria grew at 10 "C, most degraded aesculin, tributyrin and Tweens 20 and 80 and utilized a wide range of sole carbon sources.…”

Classification of the "Rhodochrous" Complex and Allied Taxa Based upon Deoxyribonucleic Acid Reassociation

“…The heterogeneity of the rhodochrous complex is most clearly seen in numerical phenetic studies in which two or more homogeneous phena have been recognised (6,16,17,22,35). However, since few strains are common to all of these investigations, it is difficult to determine whether or not, and to what extent, the phena overlap.…”

“…pellegrino (28); subclusters 1F and 1G were equated with phena lc and lb (17), respectively; subcluster 1H was equated with N . erythropolis (6) and phena 14D (16) and F3 (22); and subcluster 1J was equated with bacteria given the trivial name "Lspi" (large, spored, pink, irregular) (15). Subcluster 1C can be subdivided further and contains strains of G. bronchialis, G. rubra, and G .…”