1887

Abstract

A novel, strictly aerobic, red-pigmented, Gram-reaction-negative bacterium, designated strain R9-9, was isolated from tundra soil collected near Ny-Ålesund, Svalbard Archipelago, Norway (78° N). The novel strain was subjected to a taxonomic study using a polyphasic approach. It grew optimally at 20–22 °C and at pH 7.0. Flexirubin-type pigments were absent. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain R9-9 represents a distinct phyletic line that reflects a novel generic status within the family . The novel strain showed relatively low 16S rRNA gene sequence similarities (<88.0 %) to members of established genera. Strain R9-9 contained summed feature 3 (Cω7 and/or Cω6), iso-C 3-OH, iso-C and Cω5 as its major cellular fatty acids, phosphatidylethanolamine as its main polar lipid, and MK-7 as its major respiratory quinone. The genomic DNA G+C content was 56.1 mol%. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain R9-9 is considered to represent a novel species in a new genus in the family , for which the name gen. nov., sp. nov. is proposed. The type strain is R9-9 ( = CCTCC AB 2010418 = NRRL B-59750).

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2013-02-01
2019-12-11
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