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Jeotgalicoccus marinus sp. nov., a marine bacterium isolated from sea urchin

¹ Jishou University;
² Chinese Academy of Medical Sciences& Peking Union Medical College;
³ Yunnan University

⁴ E-mail: wjli{at}ynu.edu.cn

A novel non-sporulating, non-motile, catalase- and oxidase-positive, facultatively anaerobic, moderately halophilic, Gram-positive coccus, designated JSM 076033T, was isolated from a sea urchin collected from the South China Sea. Strain JSM 076033T was able to grow in the presence of 0.5-25 % (w/v) total salts and at pH 6.0-10.0 and 10-45 °C optimum growth was observed with 5-10 % (w/v) total salts and at pH 7.0-8.0 and 25-30 °C. The major amino acid constituents of the cell wall were glycin, lysine and alanine. The major cellular fatty acids were anteiso-C15:0, iso-C15:0 and anteiso-C17:0. Strain JSM 076033T possessed menaquinone 7 (MK-7) (60.7 %) and MK-6 (39.3 %) as respiratory quinones and diphosphatidylglycerol, phosphatidylglycerol and an unidentified phospholipid as polar lipids. The DNA G + C content was 40.3 mol%. Phylogenetic analysis based on 16S rRNA gene sequence comparisons revealed that strain JSM 076033T should be assigned to the genus Jeotgalicoccus. The sequence similarities between the novel isolate and the type strains of recognized Jeotgalicoccus species were in the range 95.2-97.2 % The combination of phylogenetic analysis, DNA-DNA relatedness, phenotypic characteristics and chemotaxonomic data supported the view that strain JSM 076033T represents a novel species of the genus Jeotgalicoccus, for which the name Jeotgalicoccus marinus sp. nov. is proposed. The type strain is JSM 076033T (=CCTCC AA 207028T =DSM 19772T =KCTC 13189T).

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