Niveibacterium umoris gen. nov., sp nov., isolated from wetland freshwater

A taxonomic study was carried out on a novel bacterial strain, designated MIC2059(T), which was isolated from Ungok Wetland of Gochang in Korea. Cells of the isolate were found to be Gram-stain-negative, rod-shaped and motile. Comparison of the 16S rRNA gene sequences indicated that the isolate belonged to the family Rhodocyclaceae, with Uliginosibacterium gangwonense as its closest relative, with a similarity of 94.8 %. It contained summed feature 3 (comprising C-16 : 1 omega 7c and/or C-16 : 1 omega 6c), C-16 : 0, summed feature 8 (comprising C-18 : 1 omega 7c and/or C-18 : 1 omega 6c) and C-12 : 0 3-OH as the major fatty acids and Q8 as the respiratory ubiquinone. The polar lipid profile of strain MIC2059(T) revealed the presence of phosphatidylethanolamine, phosphatidylglycerol and diphosphatidylglycerol as major polar lipids. In addition, phosphatidylserine, an unidentified aminophospholipid and unidentified lipids were present in small amounts. The DNA G + C content of the strain was 65.1 mol%. On the basis of the evidence presented, it is concluded that strain MIC2059(T) represents a novel species of a novel genus within the family Rhodocyclaceae, for which the name Niveibacterium umoris gen. nov., sp. nov. is proposed. The type strain is MIC2059(T) (=KACC 17062(T)=JCM 18716(T)).