Reclassification of Pseudomonas acidovorans den Dooren de Jong 1926 and Pseudomonas testosteroni Marcus and Talalay 1956 as Comamonas acidovorans comb. nov. and Comamonas testosteroni comb. nov., with an Emended Description of the Genus Comamonas

Abstract

We examined 36 strains of Pseudomonas acidovorans, Pseudomonas testosteroni, and Comamonas terrigena on the basis of phenotypic characters, chemotaxonomic characters, and deoxyribonucleic acid (DNA)-DNA homology. Strains of these three species share many phenotypic characteristics; these organisms exhibit higher levels of DNA-DNA homology and higher levels of electrophoretic enzyme pattern similarity within the three species than with Pseudomonas aeruginosa. The strains in the three species could be differentiated on the basis of carbon compound assimilation patterns, cellular fatty acid composition, and DNA base composition. We propose that Pseudomonas acidovorans and Pseudomonas testosteroni be transferred to the genus Comamonas, as Comamonas acidovorans comb. nov. and Comamonas testosteroni comb, nov., respectively.