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Salinicoccus jeotgali sp. nov., isolated from jeotgal, a traditional Korean fermented seafood

¹ Department of Biological Sciences, Korea Advanced Institute of Science and Technology, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701, Republic of Korea
² Department of Microbiology, Gyeongsang National University, 900 Gazwa, Jinju 660-701, Republic of Korea

Correspondence
Sung-Taik Lee
e_stlee{at}kaist.ac.kr

A novel, moderately halophilic, Gram-positive coccus, designated strain S2R53-5^T, was isolated from jeotgal, a traditional Korean fermented seafood. The organism was strictly aerobic, non-motile, non-sporulating and catalase- and oxidase-positive. Strain S2R53-5^T grew in the presence of 0.5–15 % (w/v) NaCl and at pH 6.5–11.0, with optimum growth at 5 % (w/v) NaCl and pH 7.0. The temperature range for growth was 20.0–30.0 °C, with an optimum temperature of 30 °C. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain S2R53-5^T belongs to the family Staphylococcaceae and was most closely related to Salinicoccus roseus DSM 5351^T (96.8 % gene sequence similarity), Salinicoccus hispanicus DSM 5352^T (96.1 %), Salinicoccus alkaliphilus T8^T (95.2 %) and Jeotgalicoccus halotolerans YKJ-101^T (95.1 %). The genomic DNA G+C content was 47.0 mol%, which is in the range of 46–51 mol% that is characteristic for the genus Salinicoccus. Levels of DNA–DNA relatedness between strain S2R53-5^T and S. roseus DSM 5351^T, S. hispanicus DSM 5352^T and S. alkaliphilus KCTC 13928^T were 32.2, 15.4 and 4.6 %, respectively. Chemotaxonomic data (major menaquinone, MK-6; major fatty acids, iso-C_{15 : 0} and anteiso-C_{15 : 0}; cell-wall murein type, Lys and Gly) and 16S rRNA gene sequence analysis supported the affiliation of strain S2R53-5^T with the genus Salinicoccus. The combined evidence from the low DNA–DNA relatedness, physiological, biochemical and other genotypic data indicate that strain S2R53-5^T clearly represents a novel species of the genus Salinicoccus, for which the name Salinicoccus jeotgali sp. nov. is proposed. The type strain is S2R53-5^T (=KCTC 13030^T=LMG 23640^T).

Supplementary tables comparing additional characteristics and the fatty acid content of strain S2R53-5^T with members of the genus Salinicoccus and other related genera are available in IJSEM Online.

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