Roseomonas terrae sp nov.

A Gram-negative, non-motile, coccobacilli-shaped bacterium, DS-48(T) was isolated from soil from Dokdo, Korea, and its taxonomic position was investigated by means of a polyphasic study. Strain DS-48(T) grew optimally at 25 degrees C and pH 7.0-8.0 in the presence of 0.5 % (w/v) NaCl. It contained Q-10 as the predominant ubiquinone and C-18:1 omega 7c and C-18:1 2-OH as the major fatty acids. The DNA G+C content was 69.3 mol%. A phylogenetic analysis based on 16S rRNA gene sequences showed that strain DS-48(T) fell within the genus Roseamonas, clustering with Roseomonas lacus TH-G33(T) (at a bootstrap confidence level of 100%). The levels of similarity between the 16S rRNA gene sequence of strain DS-48(T) and those of the type strains of recognized Roseomonas species were in the range 93.2-98.0%. DNA-DNA relatedness data T and differential phenotypic properties, together with the phylogenetic distinctiveness of DS-48(T), revealed that this strain differs from recognized Roseomonas species. On the basis of phenotypic, phylogenetic and genetic data, therefore, strain DS-48(T) represents a novel species within the genus Roseomonas, for which the name Roseomonas terrae sp. nov. is proposed. The type strain is DS-48(T) (=KCTC 12874(T)=JCM 14592(T)).