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

Volume 74, Issue 7

gen. nov., sp. nov., a novel member of the family , isolated from sea sand Open Access

Abstract

A Gram-negative, non-motile, and creamy-white coloured bacterium, designated CAU 1616, was isolated from sea sand collected at Ayajin Beach, Goseong-gun, Republic of Korea. The bacterium was found to grow optimally at 37 °C, pH 8.0–8.5, and with 1–5 % (w/v) NaCl. Phylogenetic analyses based on the 16S rRNA gene sequences placed strain CAU 1616 within the order . The highest 16S rRNA gene sequence similarity was to YIM D812 (94.1 %), YIM D82 (93.7 %), BA45AL (93.6 %) and HHTR 118 (92.3 %). Comparing strain CAU 1616 with closely related species ( YIM D812 and YIM D82), the average nucleotide identity based on + values were 69.7–69.8 %, the average amino acid identity values were 61.3–61.4 %, and the digital DNA–DNA hybridization values were 18.4–18.5 %. The assembled draft genome of strain CAU 1616 had 29 contigs with an N50 value of 385.8 kbp, a total length of 3 490 371 bp, and a DNA G+C content of 65.1 mol%. The predominant cellular fatty acids were C 2−OH, C cyclo 8, and summed feature 8 (C 6 and/or C 7). The major respiratory quinone was Q-10. Based on phenotypic, phylogenetic, and chemotaxonomic evidence, strain CAU 1616 represents a novel genus in the family , for which the name gen. nov., sp. nov. is proposed. The type strain is CAU 1616 (=KCTC 82428=MCCC 1K06089).

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Keyword(s): Alphaproteobacteria , Aquibaculum arenosum , novel genus , novel species and Rhodovibrionaceae
Funding
This study was supported by the:
  • This work was supported by a grant from the National Institute of Biological Resources (NIBR), funded by the Ministry of Environment (MOE) of the Republic of Korea (NIBR202002203). (Award NIBR202002203)
© 2024 The Authors
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License. This article was made open access via a Publish and Read agreement between the Microbiology Society and the corresponding author’s institution.
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2024-07-12
2025-05-16
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Aquibaculum arenosum gen. nov., sp. nov., a novel member of the family Rhodovibrionaceae, isolated from sea sand
Int J Syst Evol Microbiol 74, 006458 (2024); https://doi.org/10.1099/ijsem.0.006458
/content/journal/ijsem/10.1099/ijsem.0.006458
/content/journal/ijsem/10.1099/ijsem.0.006458
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