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Nocardioides terrigena sp. nov., isolated from soil

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-positive, rod- or coccoid-shaped bacterial strain, DS-17^T, was isolated from a soil in Dokdo, Korea, and its taxonomic position was investigated by using a polyphasic approach. Strain DS-17^T grew optimally at around pH 8.0 and 30 °C in the presence of 0.5–1.0 % (w/v) NaCl. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain DS-17^T belonged to the genus Nocardioides. The chemotaxonomic properties of strain DS-17^T were consistent with those of the genus Nocardioides: the cell-wall peptidoglycan type was based on LL-2,6-diaminopimelic acid, MK-8(H₄) was the predominant menaquinone and iso-C_{16 : 0}, C_{17 : 1}8c and C_{17 : 0} were the major fatty acids. The DNA G+C content was 71.5 mol%. Strain DS-17^T exhibited 16S rRNA gene sequence similarity values of 94.5–96.9 % to the type strains of recognized Nocardioides species. Strain DS-17^T could be distinguished from recognized Nocardioides species by differences in phenotypic characteristics. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain DS-17^T is considered to represent a novel species of the genus Nocardioides, for which the name Nocardioides terrigena sp. nov. is proposed. The type strain is DS-17^T (=KCTC 19217^T=JCM 14582^T).

A table detailing the differential phenotypic characteristics of strain DS-17^T and related Nocardioides species is available as supplementary material with the online version of this paper.

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