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

Volume 70, Issue 1

sp. nov., isolated from marine sediment Free

Abstract

A Gram-stain-negative, rod-shaped and facultatively anaerobic strain, designated CG51, was isolated from marine sediment collected from a coastal area in Weihai, PR China. Strain CG51 grew at 4–37 °C (optimum, 28–30 °C), with 1.0–6.0 % (w/v) NaCl (2.0–3.0 %) and at pH 6.0–8.5 (pH 7.0–7.5). The predominant fatty acids were iso-C, anteiso-C and iso-C. Major polar lipids included an unidentified lipid and a phospholipid. The respiratory quinone was MK-7 and the genomic DNA G+C content was 35.9 mol%. The results of phylogenetic analysis based on 16S rRNA gene sequences placed strain CG51 in the genus with the close relatives being Y11 and HQYD1, exhibiting 96.5 and 96.3 % 16S rRNA pairwise similarity, values which are clearly below the 98.7 % threshold value recommended for species demarcation. Based on the phylogenetic, physiological, chemotaxonomic and genetic data, strain CG51 represents a novel species within the genus , for which the name sp. nov. is proposed. The type strain is CG51 (=MCCC 1K03739=JCM 33138).

  • Received:
  • Accepted:
  • Revised:
  • Published Online:
Keyword(s): 16S rRNA gene , Labilibacter sediminis sp. nov. , marine sediment and polyphasic taxonomy
Funding
This study was supported by the:
  • National Natural Sciences Foundation of China (Award 31602144)
    • Principle Award Recipient: Guo-Hua Sun
  • Instituto Nacional de Ciência e Tecnologia de Semioquímicos na Agricultura (BR) (Award SDAIT-22-2)
    • Principle Award Recipient: Guo-Hua Sun
  • Key Research and Development Program of the Ministry of Science and Technology (Award 2018YFD0901602)
    • Principle Award Recipient: Guo-Hua Sun
© 2020 The Authors
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2020-02-03
2025-01-18
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Labilibacter sediminis sp. nov., isolated from marine sediment
Int J Syst Evol Microbiol 70, 321 (2020); https://doi.org/10.1099/ijsem.0.003758
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