Fulvimarina uroteuthidis sp. nov., isolated from a marine invertebrate and Uroteuthis (Photololigo) edulis.

Abstract

Gram-stain-negative, strictly aerobic bacterium, designated strain 2208YS6-2-32^T, was isolated from a marine invertebrate, Uroteuthis (Photololigo) edulis collected by trawl in the south coastal sea of the Republic of Korea. The cells were motile, short-rod, non-spore-forming and contained carotenoid pigments. Catalase and oxidase activities were positive. According to phylogenetic analysis based on 16S rRNA gene and whole-genome sequence determined that strain 2208YS6-2-32^T belongs to the novel Fulvimarina species and shares the highest 16S rRNA gene similarity with Fulvimarina endophytica 85^T (97.5%). The average nucleotide identity and digital DNA-DNA hybridization values between strain 2208YS6-2-32^T and Fulvimarina endophytica 85^T were 78.3% and 21.9%, respectively. The DNA G+C content was 64.5%. Optimal growth of strain 2208YS6-2-32^T was observed at 28 °C and pH 8 and in the presence of 1-3% (w/v) NaCl. Strain 2208YS6-2-32^T contained ubiquinone-10 as the respiratory quinone, C_18 : 1 ω7c (79.0%) and summed feature 3 (C_{16  :  1} ω7c and/or C_16 : 1 ω6c; 13.5%) as the major fatty acids. The polar lipids comprised diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine, an unidentified aminolipid and seven unidentified lipids. Based on the results of the polyphasic approach, strain 2208YS6-2-32^T represents a novel species of the genus Fulvimarina, for which the name Fulvimarina uroteuthidis sp. nov. is proposed. The type strain is 2208YS6-2-32^T (=KACC 23586^T=JCM 36703^T).