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Abstract

Strain MEBiC09520, which was isolated from a tidal sediment in Incheon, Korea, is a pale yellow, rod-shaped bacterium, cells of which are 0.4–0.5 µm in width and 1.5–2 µm in length. Strain MEBiC09520 shared 95.17 and 92.57% 16S rRNA gene sequence similarity with and , respectively. It grew optimally at pH 6.0, at 55 °C and with 2.5–3.5% (w/v) NaCl. Its polar lipid components included phosphatidylethanolamine (PE), diphosphatidylglycerol (DPG), phosphatidylglycerol (PG), an unidentified phospholipid (PL), three unidentified aminolipids (ALs) and two unidentified lipids (L). The fatty acids C, C cyclo ω8, C 2-OH and summed feature 8 (Cω7 and/or Cω6) were predominantly present in its cell wall. Strain MEBiC09520 was thermophilic, while and were mesophilic. Although showed no nitrate reduction activity, MEBiC09520 and showed a positive reaction. These strains differed in carbohydrate utilization. In particular, was able to thrive on various carbohydrate substrates as compared to the other strains. The average nucleotide identity value was 69.92% between strain MEBiC09520 and ZYL, 70.38% between ZYL and HTCJW17, and 72.83% between strain MEBiC09520 and HTCJW17. Considering these differences, strain MEBiC09520 (=KCCM 43320=MCCC 1K03920) is suggested to represent and novel species of a new genus, gen. nov., sp. nov., and should be reclassified as gen. nov., comb. nov.

Funding
This study was supported by the:
  • Ministry of Ocean and Fisheries, Korea (Award 20170431)
    • Principle Award Recipient: Kae Kyoung Kwon
  • Korea Institute of Ocean Science and Technology (Award PE99822)
    • Principle Award Recipient: Kae Kyoung Kwon
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2020-07-22
2021-08-02
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