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

Volume 73, Issue 7

gen. nov., sp. nov., a novel member of the family isolated from South China Sea sediment No Access

Abstract

A novel member of class was isolated from marine sediment of the South China Sea. Cells of strain LMO-2 were Gram-stain negative, greyish in colour, motile, with a single lateral flagellum and short rod in shape with a slight curve. Strain LMO-2 was positive for oxidase and negative for catalase. The bacterium grew aerobically at 10–40 °C (optimum, 25–30 °C), pH 5.5–10.0 (optimum, pH 7.0) and 0–9 % NaCl (w/v; optimum, 2–3 %). Phylogenetic analysis of the 16S rRNA gene sequence and phylogenomic analysis of the whole genome sequence indicated that strain LMO-2 represents a new genus and a new species within the family , class , phylum . Comparisons of the 16S rRNA gene sequences of strain LMO-2 showed 94.8 % similarity to its closest relative. The genome size is ~3.45 Mbp with a DNA G+C content of 58.17 mol%. The strain possesses potential capability for the degradation of complex organic matter, i.e. fatty acid and benzoate. The predominant cellular fatty acids (>10 %) were C and C ω7c 11-methyl. The sole respiratory quinone was ubiquinone-10. The major identified polar lipids were diphosphatidylglycerol, phosphatidylglycerol and phospholipid. Based on the polyphasic taxonomic data, strain LMO-2 represents a novel genus and a novel species for which the name gen. nov., sp. nov., was proposed in the family . The type strain is LMO-2 (=CGMCC 1.19273=JCM 34934).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): aerobic bacteria , Alphaproteobacteria , Mariluticola halotolerans , marine sediment and Pseudomonadota
Funding
This study was supported by the:
  • National Key Research and Development Program of China (Award 2022YFC2804100)
    • Principle Award Recipient: FengpingWang
© 2023 The Authors
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/content/journal/ijsem/10.1099/ijsem.0.005972
2023-07-24
2025-03-15
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Mariluticola halotolerans gen. nov., sp. nov., a novel member of the family Devosiaceae isolated from South China Sea sediment
Int J Syst Evol Microbiol 73, 005972 (2023); https://doi.org/10.1099/ijsem.0.005972
/content/journal/ijsem/10.1099/ijsem.0.005972
/content/journal/ijsem/10.1099/ijsem.0.005972
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