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Salinimonas marina sp. nov. Isolated from Jeju Island Marine Sediment

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Abstract

A Gram-stain-negative, rod-shaped, and strictly aerobic bacterium designated strain G2-bT was isolated from the marine sediment around Jeju Island, South Korea. Strain G2-bT was found to be catalase- and oxidase-positive, white-pigmented, motile with polar flagellum, and to grow optimally at 25 °C, pH 7.0 in the presence of 4% (w/v) NaCl. Phylogenetic analysis based on the 16S rRNA gene sequence revealed that strain G2-bT belongs to the genus Salinimonas and was closely related Salinimonas sediminis N102T (96.7% sequence similarity), Salinimonas iocasae KX18D6T (95.4%), Salinimonas lutimaris DPSR-4T (94.7%), and Salinimonas chungwhensis BH030046T (94.6%). Strain G2-bT possessed ubiquinone 8 as the sole respiratory quinone, summed feature 3 and summed feature 8 as the major fatty acids, and phosphatidylethanolamine and phosphatidylglycerol as the major polar lipids. The genome size and G + C content of the strain G2-bT were determined to be 3,765,169 bp, and 49.7%, respectively, as a complete circular genome. Based on the genomic analyses (e.g., average nucleotide identity and digital DNA–DNA hybridization), the strain G2-BT likely represents a new species in the genus Salinimonas, for which we propose to name this novel bacterium Salinimonas marina sp. nov., and the type strain is designated G2-BT (= KCTC 72817T = VTCC 910110T).

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Abbreviations

ANI :

Average nucleotide identity

MA :

Marine agar

MB :

Marine broth

dDDH :

Digital DNA–DNA hybridization

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Acknowledgements

This work was supported by Grants from the National Research Foundation of Korea (No. 2020R1I1A3062110) and National Institute of Biological Resourced funded by the Ministry of Environment (No. NIBR202102109 and NIBR202104104).

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Authors and Affiliations

  1. Department of Biology, Jeju National University, 102 Jejudaehak-ro, Jeju, 63243, South Korea

    Minji Kim & Soo-Je Park

  2. Microorganism Resources Division, National Institute of Biological Resources, Incheon, 22689, South Korea

    Ki-Eun Lee & In-Tae Cha

  3. Department of Microbiology and Immunology, Jeju National University School of Medicine, Aran 13-15, Jeju, 63241, South Korea

    Eui Tae Kim

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  1. Minji Kim
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Contributions

MK and SJP designed the experiments. MK, KEL, and SJP performed the experiments. ITC and ETK gave support on the experiments. MK, ITC, and SJP analyzed the data and wrote the manuscript. All authors read and approved the final manuscript.

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Correspondence to Soo-Je Park.

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Kim, M., Lee, KE., Cha, IT. et al. Salinimonas marina sp. nov. Isolated from Jeju Island Marine Sediment. Curr Microbiol 78, 3321–3327 (2021). https://doi.org/10.1007/s00284-021-02576-9

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