Umboniibacter roseus sp. nov., isolated from coastal seawater = 해수에서 분리한 신종 세균 Umboniibacter roseus

Abstract

A Gram-reaction-negative, non-motile, strictly aerobic darkness orange pigmented and rod-shaped bacterial isolate, designated strain 14-121-B13T, was isolated from surface seawater off the coast of the South Sea at Namhae-gun, Republic of Korea. Cells were catalase- and oxidase-positive and required NaCl for growth. Strain 14-121-B13T grew optimally at 30 °C, in the presence of 2% (w/v) NaCl and at pH7.5-8.0. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain 14-121-B13T clustered with the type strain of Umboniibacter marinipuniceus, with which it exhibited 96.7% sequence similarity. The DNA G+C content was 48.9 mol%. The major cellular fatty acids were summed feature 3 (C16:1 ω7c and/or C16:1 ω6с) and C16:0. The major respiratory quinone was ubiquinone Q-7 and the polar lipids detected in strain 14-121-B13T were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, an unidentified aminolipids, unidentified aminophospholipids and unidentified lipids. Based on phenotypic, chemotaxonomic and phylogenetic data presented, strain 14-121-B13T is considered to represent a novel species of the genus, Umboniibacter for which the name Umboniibacter roseus sp. nov. is proposed. The type strain is 14-121-B13T (=DSM 29882T =KCTC 42467T).