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

Volume 71, Issue 8

gen. nov., sp. nov., isolated from deep-sea sediment Free

Abstract

A Gram-stain-negative, non-motile bacterial strain, designated SW124, was isolated from a deep-sea sediment sample collected from the Indian Ocean. SW124 was aerobic and catalase-positive. The strain grew at 4–40 °C (optimum, 30 °C), at pH 5.0–8.6 (optimum, pH 7.0) and in the presence of 0.5–9.5 % (w/v) NaCl (optimum, 3.0%). The results of comparative analyses of the 16S rRNA gene sequence indicated that SW124 was grouped in the vicinity of the genus in the family . The quinone system contained menaquinone MK-7. The predominant cellular fatty acids were iso-C, iso-C 3-OH and summed feature 3 (comprising Cω7 and/or Cω6). SW124 contained phosphatidylethanolamine (PE) as the major polar lipid. The genomic DNA G+C content of SW124 was 41.7 mol%. On the basis of its phenotypic characteristics and phylogenetic data, we propose that strain SW124 (=CGMCC 1.16171=KCTC 82235) represents a novel species of a novel genus, with the name gen. nov., sp. nov.

  • Received:
  • Accepted:
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Keyword(s): deep-sea sediment , Pararhodonellum marinum and phylogenetic analysis
Funding
This study was supported by the:
  • China Ocean Mineral Resources Research and Development Association (Award DY135-B2-02)
    • Principal Award Recipient: LeiSong
  • Key Technologies Research and Development Program (Award 2018YFC0310703)
    • Principal Award Recipient: LeiSong
© 2021 The Authors
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2021-08-24
2025-11-19

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Pararhodonellum marinum gen. nov., sp. nov., isolated from deep-sea sediment
Int J Syst Evol Microbiol 71, 004966 (2021); https://doi.org/10.1099/ijsem.0.004966
/content/journal/ijsem/10.1099/ijsem.0.004966
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