gen. nov., sp. nov., a novel bacterium of the family isolated from soil of a farming field.

A Gram-stain-negative bacterium, designated strain YJ03, was isolated from a spinach farming field soil at Shinan in Korea. Strain YJ03 was found to be an aerobic, non-motile and non-spore-forming bacterium which can grow at 10-33 °C (optimum, 25-28 °C), at pH 6.6-9.5 (optimum, pH 7.0-7.5) and at salinities of 0-1.0 % (w/v) NaCl (optimum, 0 % NaCl). Sequence similarities of the 16S rRNA gene of strain YJ03 with the closely related relatives were in the range 93.9-92.2 %, and the results of phylogenomic analysis indicated that strain YJ03 was clearly separated from species of the genera in the family , showing average nucleotide identity values of 68.8-64.3 %. The predominant isoprenoid quinone was identified as MK-7 and the major fatty acids were iso-C, iso-C 3-OH and an unidentified fatty acid with an equivalent chain-length of 13.565. The major polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, four unidentified aminolipids and six unidentified lipids. The G+C content of the genome was determined to be 41.8 mol%. On the basis of phenotypic and chemotaxonomic properties and phylogenetic and phylogenomic analyses using 16S rRNA gene sequences and whole-genome sequences in this study, strain YJ03 is considered to represent a novel species of a new genus in the family , for which the name gen. nov., sp. nov., is proposed. The type strain of is YJ03 (=KACC 19548=NBRC 113195).