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Volume 73, Issue 5

sp. nov., a moderately halotolerant bacterium isolated from seaweed sediment collected in the East Sea, Republic of Korea No Access

Abstract

A Gram-stain-negative, aerobic, rod-shaped bacterium, designated as strain CAU 1638, was isolated from seaweed sediment collected in the Republic of Korea. The cells of strain CAU 1638 grew at 25–37 °C (optimum, 30 °C), at pH 6.0–7.0 (optimum, pH 6.5) and in the presence of 0–10% NaCl (optimum, 2 %). The cells were positive for catalase and oxidase and did not hydrolyse starch and casein. Strain CAU 1638 was most closely related to KCTC 52885 (97.7 %), followed by KCTC 52042 (97.4 %), KCCM 90206 (97.2 %), KCCM 90063 and DSM 21985 (97.1 %), as revealed by 16S rRNA gene sequencing. MK-7 was the major isoprenoid quinone, and iso-C and C 6 were the major fatty acids. The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, two unidentified lipids, two unidentified glycolipids and three unidentified phospholipids. The G+C content of the genome was 44.2 mol%. The average nucleotide identity and digital DNA–DNA hybridization values between strain CAU 1638 and the reference strains were 73.1–73.9 % and 18.9–21.5  %, respectively. Based on its phylogenetic, phenotypic and chemotaxonomic features, strain CAU 1638 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is CAU 1638 (=KCTC 82454=MCCC 1K06087).

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Keyword(s): 16S rRNA gene sequence , Balneolaceae , Balneolia , genome sequencing , Gracilimonas sediminicola and seaweed sediment
Funding
This study was supported by the:
  • Chung-Ang University (Award 2022)
    • Principle Award Recipient: WonyongKim
  • National Institute of Biological Resources (Award NIBR202002203)
    • Principle Award Recipient: WonyongKim
© 2023 The Authors
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2023-05-30
2024-12-10
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Gracilimonas sediminicola sp. nov., a moderately halotolerant bacterium isolated from seaweed sediment collected in the East Sea, Republic of Korea
Int J Syst Evol Microbiol 73, 005912 (2023); https://doi.org/10.1099/ijsem.0.005912
/content/journal/ijsem/10.1099/ijsem.0.005912
/content/journal/ijsem/10.1099/ijsem.0.005912
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