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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo International Journal of Systematic and Evolutionary Microbiology

Volume 75, Issue 3

sp. nov., isolated from tidal flat, Gochang, South Korea No Access

Abstract

A Gram-negative, rod-shaped, non-motile, aerobic bacterium, designated MK-3, was isolated from shallow seawater in Gochang, Republic of Korea. Growth of strain MK-3 occurred at 15–40 °C (30 °C), pH 6.0–7.0 (pH 7.0) and in the presence of 2–3 % NaCl (2%). Phylogenetic analysis based on the 16S rRNA gene sequence placed strain MK-3 within the family . It exhibited sequence similarities of 95.7% with CK-I3-6, DSM 22011 and P9; 95.4% with 1NDH52C, VSW210 and DSM 10146; 95.3% with AM-4 and B17; and 95.2% with FJ12. Phylogenetic and phylogenomic analyses consistently demonstrated that strain MK-3 formed a distinct lineage within the genus , clustering with its closest relatives. The major fatty acids were C cC1 c, C c 11-methyl and C. The genome length of strain MK-3 was 3.3 Mbp, and the DNA G+C content was 62.8 mol%. The strain contained Q-10 as the major ubiquinone. The polar lipids consisted of three phosphatidylinositol mannosides and a diphosphatidylglycerol. Based on its phenotypic, chemotaxonomic, phylogenetic and genomic characteristics, strain MK-3 represents a novel species in the genus , for which the name sp. nov. is proposed. The type strain is MK-3 (=KEMB 21417=KCTC 8294=JCM 36630).

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  • Accepted:
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Keyword(s): marine bacteria , Marivivens , Roseobacteraceae , shallow mud , taxonomy and tidal flat
Funding
This study was supported by the:
  • Korea Institute of Marine Science and Technology promotion (Award RS-2022-KS221563)
    • Principal Award Recipient: Sang-SeobLee
  • Ministry of Science and ICT, South Korea (Award NRF-2022M3H9A1085063)
    • Principal Award Recipient: Sang-SeobLee
© 2025 The Authors
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/content/journal/ijsem/10.1099/ijsem.0.006735
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Marivivens marinum sp. nov., isolated from tidal flat, Gochang, South Korea
Int J Syst Evol Microbiol 75, 006735 (2025); https://doi.org/10.1099/ijsem.0.006735
/content/journal/ijsem/10.1099/ijsem.0.006735
/content/journal/ijsem/10.1099/ijsem.0.006735
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