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Idiomarina salinarum sp. nov., isolated from a marine solar saltern in Korea

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, motile, rod-shaped, Idiomarina-like bacterial strain, ISL-52^T, was isolated from a marine solar saltern of the Yellow Sea in Korea and was subjected to a polyphasic taxonomic investigation. Strain ISL-52^T grew optimally at pH 7.0–8.0 and at 30–37 °C. It contained Q-8 as the predominant ubiquinone. The major fatty acids (>10 % of total fatty acids) were iso-C_{15 : 0}, iso-C_{17 : 0} and iso-C_{17 : 1}9c. The DNA G+C content was 53.9 mol%. A phylogenetic analysis based on 16S rRNA gene sequences showed that strain ISL-52^T fell within the genus Idiomarina, joining the type strain of Idiomarina homiensis at a bootstrap resampling value of 100 %. Strain ISL-52^T exhibited 16S rRNA gene sequence similarity values of 94.9–96.7 % with respect to the type strains of eight recognized Idiomarina species. The differential phenotypic properties of ISL-52^T, together with its phylogenetic distinctiveness, demonstrated that this strain is distinguishable from the recognized Idiomarina species. On the basis of phenotypic, phylogenetic and genetic data, therefore, strain ISL-52^T represents a novel species of the genus Idiomarina, for which the name Idiomarina salinarum sp. nov. is proposed. The type strain is ISL-52^T (=KCTC 12971^T=CCUG 54359^T).

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