A pale yellow, Gram-reaction-negative, non-motile, aerobic bacterium, designated MC 3726 T , was isolated from a tundra soil near Ny-Å lesund, Svalbard Archipelago, Norway (78 8N). Growth occurred at 4-37 8C (optimum 25-30 8C) and at pH 5.0-9.0 (optimum pH 8.0). Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain MC 3726 T belonged to the genus Luteolibacter in the family Verrucomicrobiaceae. The 16S rRNA gene sequence of this strain showed 93.18, 92.54 and 92.44 %

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... arity to those of Luteolibacter cuticulihirudinis E100 T , Luteolibacter pohnpeiensis A4T-83 T and Luteolibacter yonseiensis EBTL01 T , respectively. The cell wall of strain MC 3726 T contained meso-diaminopimelic acid as the diagnostic amino acid. Strain MC 3726 T contained iso-C 14:0 (38.28 %), C 16:0 (15.89 %), C 16:1 v9c (14.24 %), iso-C 16:0 (10.42 %) and anteiso-C 15:0 (5.75 %) as the predominant cellular fatty acids, MK-9 and MK-10 as the major respiratory quinones, and phosphatidylethanolamine, phosphatidylmethylethanolamine, phosphatidylglycerol and diphosphatidylglycerol as the main polar lipids. The DNA G+C content was 60.7 mol %. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain MC 3726 T is considered to represent a novel species of the genus Luteolibacter, for which the name Luteolibacter arcticus sp. nov. is proposed. The type strain is MC 3726 T (5CCTCC AB 2014275 T 5 LMG 28638 T ). An emended description of the genus Luteolibacter is also provided, along with emended descriptions of Luteolibacter cuticulihirudinis, Luteolibacter yonseiensis and Luteolibacter pohnpeiensis.