1887

Abstract

A Gram-reaction-negative, motile, non-violet-pigmented, rod-shaped bacterial strain, designated E1, was isolated from Arctic lake sediment. Growth occurred at 4 °C–28 °C (optimum, 18 °C), at pH 4–11(optimum, 9–10) and in the presence of 0–1 % (w/v) NaCl. The taxonomic position of E1 was analysed using a polyphasic approach. Strain E1 exhibited 16S rRNA gene sequence similarity value of 98.1 % with respect to the type strain of , but no more than 93 % with the type strains of other recognized species. A further DNA–DNA hybridization experiment was conducted, which demonstrated unambiguously that strain E1 was distinct from ATCC 33051 (51.3 % relatedness). The DNA G+C content of strain E1 was 52.3 mol%. Chemotaxonomic data [Q-8 as the monospecific respiratory quinone and summed feature 3 (Cω7 and/or Cω6 56.1 %) and C (18.8 %) as the major cellular fatty acids] supported the affiliation of strain E1 to the genus . However, the results of physiological and biochemical tests allowed phenotypic differentiation of strain E1 from ATCC 33051. On the basis of phenotypic and genotypic properties, strain E1 represents a novel species of genus , for which the name sp. nov. is proposed. The type strain is E1 ( = CCTCC AB 2010224 = NRRL B-59456).

Funding
This study was supported by the:
  • National Basic Research Program of China (Award 2011CB808800)
  • R & D Infrastructure and Facility Development Program from the Ministry of Science and Technology of the People’s Republic of China
  • State Oceanic Administration, P.R.China (Award 10/11YR06)
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2013-04-01
2024-11-07
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