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Roseomonas terrae sp. nov.

Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea

Correspondence
Jung-Hoon Yoon
jhyoon{at}kribb.re.kr

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 °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}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 Roseomonas, 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 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).

A table showing phenotypic characteristics of strain DS-48^T and Roseomonas species is available with the online version of this paper.

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