sp. nov., a psychrophilic bacterium isolated from glacier ice, and emended descriptions of Park 2012 and Yi and Chun 2012 Free

Abstract

A Gram-negative, proteorhodopsin-containing, orange pigmented, rod-shaped and strictly aerobic bacterium, designated strain AKS622, was isolated from a glacier core collected from the coast of King George Island, Antarctica. 16S rRNA gene sequence analysis revealed that strain AKS622 was affiliated to the genus of the family and showed highest similarity to S1-08 (97.9 %). The level of DNA–DNA relatedness between strain AKS622 and S1-08 was 46 %. Optimal growth of strain AKS622 was observed at pH 7.0, at 15 °C and with 2.0 % NaCl. The predominant cellular fatty acids were anteiso-C, iso-C, iso-C 3-OH, C 2-OH and summed feature 3 (comprising Cω7 and/or Cω6). The DNA G+C content was 37.9 mol%. The major respiratory quinone was MK-6. Phosphatidylethanolamine, four unidentified glycolipids, three unidentified aminolipids and one unidentified lipid were detected as major polar lipids. On the basis of the data from this polyphasic taxonomic study, it was concluded that strain AKS622 represents a novel species within the genus , for which the name sp. nov. is proposed. The type strain is AKS622 ( = KCCM 43019 = JCM 14068). Emended descriptions of Park 2012 and Yi and Chun 2012 are given.

Funding
This study was supported by the:
  • Marine and Extreme Genome Research Center Program & Marine BioResource Bank Program
  • Ministry of Ocean and Fisheries, Korea
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2014-02-01
2024-03-28
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