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Volume 67, Issue 8

sp. nov., isolated from surface seawater Free

Abstract

A bacterial strain, designated DL5-4, was isolated from the surface seawater of Dalian Bay and characterized using a polyphasic taxonomy approach. Cells of DL5-4 were Gram-staining-negative, non-motile and short-rod-shaped. Growth was observed at 8–40 °C (optimum 28–30 °C), at pH 6–9 (optimum pH 7) and in 0–7 % NaCl (optimum 1–3 %, w/v). The results of phylogenetic analysis based on 16S rRNA gene sequences indicated that DL5-4 formed an independent branch with members of the genus , sharing high similarities with five related type strains, CDM-7 (96.6 %), DSM 18921 (96.0 %), 20V17 (95.8 %), BS14 (95.8 %) and cai42 (94.5 %). The predominant fatty acid was summed feature 8 (Cω6 and/or Cω7). The isoprenoid quinone was identified as Q-10. The polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, four phospholipids, an aminolipid and an unknown lipid. The DNA G+C content was 63.8 mol%. The results of the phenotypic, phylogenetic and chemotaxonomic analyses clearly indicated that DL5-4 represents a novel species of the genus , for which the name sp. nov. is proposed, with type strain DL5-4 (=MCCC 1A06955=LMG 29616).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): Defluviimonas nitratireducens , taxonomy and the surface seawater
© 2017 IUMS
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2017-08-01
2024-04-25
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Defluviimonas nitratireducens sp. nov., isolated from surface seawater
Int J Syst Evol Microbiol 67, 2752 (2017); https://doi.org/10.1099/ijsem.0.002015
/content/journal/ijsem/10.1099/ijsem.0.002015
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