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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 70, Issue 12

sp. nov., an agar-digesting marine bacterium isolated from surface seawater Free

Abstract

A Gram-stain-negative, aerobic, gliding, reddish-orange-coloured, rod-shaped strain, designated SR4, was isolated from surface seawater sampled at Luhuitou fringing reef (South China Sea). Phylogenetic analyses based on the 16S rRNA gene, phylogenomic analysis of single-copy gene families and whole genome data affiliated it to the genus . It was most closely related to NBRC 100898 (97.99 % 16S rRNA gene similarity). The genome average nucleotide identity and DNA–DNA relatedness values between strain SR4 and its reference strains were less than 74.2 and 16.3 %, respectively. Growth occurred at 20–35 °C (optimum, 28 °C), pH 6.0–9.0 (optimum, pH 7.0) and in the presence of 1–6 % (w/v) NaCl (optimum, 2–4 %). The dominant fatty acids were C, iso-C and C 6,9,12,15. The polar lipid profile of strain SR4 comprised phosphatidylethanolamine, two glycolipids, two aminophospholipids and three unidentified lipids. The major respiratory quinone was MK-7. The DNA G+C content of strain SR4 was 34.20 mol%. On the basis of the polyphasic evidence, strain SR4 is proposed as representing a novel species of the genus , for which the name sp. nov. is proposed. The type strain is SR4 (=KCTC 82075=MCCC 1A17137).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Flammeovirga agarivorans sp. nov. , Luhuitou fringing reef and surface seawater
Funding
This study was supported by the:
  • Scientific Research Foundation of Third Institute of Oceanography, MNR (Award 2019003)
    • Principle Award Recipient: Jiaguang Xiao
  • Scientific Research Foundation of Third Institute of Oceanography, MNR (Award 2020005)
    • Principle Award Recipient: Xiaolei Wang
  • National Key Research and Development Program of China (Award 2017YFA0604902)
    • Principle Award Recipient: Wentao Niu
© 2020 The Authors
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2020-10-23
2023-06-08
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Flammeovirga agarivorans sp. nov., an agar-digesting marine bacterium isolated from surface seawater
Int J Syst Evol Microbiol 70, 6060 (2020); https://doi.org/10.1099/ijsem.0.004497
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