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Abstract

The bacterial strain N1-38 was isolated from ancient Siberian permafrost sediment. The strain was Gram-reaction-negative, motile by gliding, rod-shaped and psychrophilic, and showed good growth over a temperature range of − 5 to 25 °C. Phylogenetic analysis of 16S rRNA gene sequences revealed that strain N1-38 was most closely related to members of the genus and shared the highest 16S rRNA gene sequence similarities with the type strains of (99.3 %), (98.9 %) and (96.5 %). The predominant cellular fatty acids of strain N1-38 were summed feature 3 (Cω7 and/or iso-C 2-OH), C and Cω7. The major respiratory quinone was ubiquinone 8 and the major polar lipids were phosphatidylethanolamine and diphosphatidylglycerol. The genomic DNA G+C content was 53.0 mol%. Combined data of phenotypic, phylogenetic and DNA–DNA relatedness studies demonstrated that strain N1-38 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is N1-38 ( = LMG 28868 = CCOS 838). An emended description of the genus is also provided.

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2016-02-01
2019-10-13
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