sp. nov., isolated from the marine sponge, .

A facultative anaerobic Gram-negative bacterium, designated as strain 2205BS29-5, was isolated from a marine sponge, , in Beomseom on Jeju Island, Republic of Korea, and taxonomically characterized. The cells were catalase and oxidase positive, non-motile, coccoid-rod shaped and capable of poly-β-hydroxybutyrate production. Growth was observed at 10-37 °C (optimum, 25 °C) and pH 5.0-8.0 (optimum, pH 7.0), and in the presence of 0-9% NaCl (w/v) (optimum, 3.0-4.0%). The major cellular fatty acids and respiratory quinone were identified as summed feature 8 (C 7/C 6) and Q-10, respectively. The major polar lipids comprised diphosphatidylglycerol, phosphatidylglycerol, four phosphoglycolipids, two unidentified amino lipids and eight unidentified lipids. The DNA G+C content was 67.8%. Strain 2205BS29-5 was most closely represented by 11-3 and MJ17 with 97.8 and 97.5% 16S rRNA gene sequence similarities, respectively. Phylogenetic analyses based on 16S rRNA genes and whole-genome sequences showed that strain 2205BS29-5 was affiliated with the genus . Genomic analysis showed that strain 2205BS29-5 could synthesize vitamin B family (folate and cobalamin) and ectoine. The average nucleotide identity and digital DNA-DNA hybridization values between strain 2205BS29-5T and 11-3 were 77.1% and 18.8%, respectively, and with MJ17 were 78.4 and 21.2%, respectively. Based on phylogenetic, chemotaxonomic and genome relatedness analyses, strain 2205BS29-5 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is 2205BS29-5 (=LMG 33062 =KACC 23240).