1887

Abstract

A novel psychrotolerant bacterial strain, BCw111, was isolated from seawater samples from the Chukchi Sea in the Arctic Ocean. Cells of strain BCw111 were Gram-negative, motile, facultatively anaerobic, curved rods and were able to grow at 0–30 °C (optimum 23–25 °C). Strain BCw111 had Q-8 as the major respiratory quinone and contained iso-C 2-OH and/or Cω7 (28.13 %), C (13.28 %) and C (12.90 %) as the major cellular fatty acids. The genomic DNA G+C content was 41.3 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain BCw11 formed a distinct lineage within the genus and exhibited the highest 16S rRNA gene sequence similarity with 537 (97.8 %) and SMK-10 (97.1 %). Based on phenotypic characteristics, phylogenetic analysis and DNA–DNA relatedness, a novel species, sp. nov., is proposed. The type strain is BCw111 ( = CGMCC 1.9127  = LMG 25329  = DSM 22576).

Funding
This study was supported by the:
  • IPY 2007–2008 Chinese Programme, the National Key Technology R&D Program of China (Award 2006BAB18B07)
  • National Natural Science Foundation of China (Award 30500001)
  • National Infrastructure of Natural Resources for Science and Technology Program of China (Award 2005DKA21209)
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2011-04-01
2021-04-22
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