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Abstract

A novel bacterium, strain QS115, was isolated from deep-sea sediment collected from the South China Sea at a depth of 1151 m. Phylogenetic analyses based on 16S rRNA gene sequences indicated that QS115 was most closely related to W43, with similarity of 98.21 %. Strain QS115 shared 82.39 % average nucleotide identity, 26.3 % digital DNA–DNA hybridization and 85.32 % average amino acid identity with W43. Cells of strain QS115 were Gram-stain-negative, rod-shaped and grew optimally at 10 °C, pH 7.5 and 2 % (w/v) NaCl. The principal fatty acids were summed feature 8 (C 7/6), the major respiratory quinone was ubiquinone-10 and predominant polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, glycophospholipid, phosphatidylglycerol and phosphatidylcholine. Polyphasic analyses of physiological and phenotypic characteristics and genomic studies suggested that strain QS115 represents a novel species of the genus , for which the name sp. nov. is proposed (type strain QS115=MCCC 1K04395=JCM 34219).

Funding
This study was supported by the:
  • Centre National de la Recherche Scientifique (Award DBM 2023)
    • Principle Award Recipient: Long-FeiWu
  • National Natural Science Foundation of China (Award 42076127)
    • Principle Award Recipient: Wei-JiaZhang
  • National Natural Science Foundation of China (Award NSFC 42176121)
    • Principle Award Recipient: Wei-JiaZhang
  • Major Scientific and Technological Projects of Hainan Province (Award ZDKJ2019011)
    • Principle Award Recipient: Wei-JiaZhang
  • Major Scientific and Technological Projects of Hainan Province (Award ZDKJ2021028)
    • Principle Award Recipient: Wei-JiaZhang
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/content/journal/ijsem/10.1099/ijsem.0.006046
2023-09-27
2024-05-08
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