Altererythrobacter marensis sp. nov., isolated from seawater

Abstract

A novel Gram-negative bacterium, designated MSW-14T, was isolated from seawater collected around Mara Island, Jeju, Republic of Korea. The organism was motile by means of a flagellum and showed optimum growth at 0–4 % NaCl, 30 °C and pH 7.1. Phylogenetic analyses based on 16S rRNA gene sequences showed that the isolate belonged to the family Erythrobacteraceae. The strain's closest phylogenetic neighbours were Altererythrobacter epoxidivorans JCS350T (97.7 % sequence similarity), Altererythrobacter luteolus SW-109T (97.3 %) and Altererythrobacter indicus MSSRF26T (95.0 %). The dominant cellular fatty acid was C18 : 1 (summed feature 7, 52.8 %). The major ubiquinone was UQ-10. The DNA G+C content was 63.1 mol%. DNA–DNA hybridization values between strain MSW-14T and A. epoxidivorans KCCM 42314T and A. luteolus KCTC 12311T were 26.0–27.3 % and 9.8–15.2 %, respectively. On the basis of the data from the polyphasic characterization, strain MSW-14T represents a novel species, for which the name Altererythrobacter marensis sp. nov. is proposed. The type strain is MSW-14T (=KCTC 22370T=DSM 21428T).