Aquimarina litoralis sp. nov., isolated from a coastal seawater

A strictly aerobic, red-pigmented, non-motile, catalase- and oxidase-positive, Gram-staining-negative bacterium, designated strain CNURIC011^T, was isolated from seawater off the coast of Jeju Island in Korea. A phylogenetic analysis based on 16S rRNA gene sequences showed that strain CNURIC011^T belongs to the genus Aquimarina in the family Flavobacteriaceae. 16S rRNA gene sequence analysis revealed that the close relatives of the novel strain are Aquimarina latercula ATCC 23177^T, Aquimarina marcrocephali JAMB N27^T, Aquimarina intermedia KMM 6258^T, Aquimarina muelleri KMM 6020^T, and Aquimarina brevivitae SMK-19^T, with sequence similarities of 97.6, 96.6, 96.0, 95.6, and 94.2%, respectively. DNA-DNA hybridization revealed that the level of relatedness between strain CNURIC011^T and Aquimarina latercula ATCC 23177^T (=KCTC 2912^T) was 4.9%. The DNA G+C content was 35.8 mol% and the major respiratory quinone was MK-6. The major fatty acids were iso-C_15:0 (14.9%), C_15:0 (13.9%), iso-C_17:0 3-OH (12.6%), iso-C_15:1 G (7.3%), and iso-C_17:1 ω9c (7.2%). On the basis of phenotypic, phylogenetic, and genotypic data, strain CNURIC011^T represents a novel species within the genus Aquimarina, for which the name Aquimarina litoralis sp. nov. is proposed. The type strain is CNURIC011^T (=KCTC 22614^T =JCM 15974^T).