Marinobacter salicampi sp. nov., isolated from a marine solar saltern in Korea

Abstract

A Gram-negative, motile, rod-shaped, Marinobacter-like bacterial strain, ISL-40(T), was isolated from a marine solar saltern of the Yellow Sea in Korea. The taxonomic position of the novel strain was investigated using a polyphasic approach. Strain ISL-40(T) grew optimally at pH 7.0-8.0 and at 30 degrees C. It contained Q-9 as the predominant ubiquinone. The major fatty acids were C(16 : 0), C(16 : 1)omega7c and/or iso-C(15 : 0) 2-OH and 10-methyl C(16 : 0). The DNA G+C content was 58.1 mol%. A phylogenetic analysis based on 16S rRNA gene sequences showed that strain ISL-40(T) belongs to the genus Marinobacter. Strain ISL-40(T) exhibited 16S rRNA gene sequence similarity values of 93.5-96.4 % to the type strains of recognized Marinobacter species. The differential phenotypic properties and phylogenetic distinctiveness of strain ISL-40(T) revealed that it is separate from recognized Marinobacter species. On the basis of phenotypic, phylogenetic and genetic data, therefore, strain ISL-40(T) represents a novel species of the genus Marinobacter, for which the name Marinobacter salicampi sp. nov. is proposed. The type strain is ISL-40(T) (=KCTC 12972(T)=CCUG 54357(T)).