RT Journal Article SR Electronic(1) A1 Malimas, Taweesak A1 Yukphan, Pattaraporn A1 Takahashi, Mai A1 Muramatsu, Yuki A1 Kaneyasu, Mika A1 Potacharoen, Wanchern A1 Tanasupawat, Somboon A1 Nakagawa, Yasuyoshi A1 Tanticharoen, Morakot A1 Yamada, YuzoYR 2009 T1 Gluconobacter japonicus sp. nov., an acetic acid bacterium in the Alphaproteobacteria JF International Journal of Systematic and Evolutionary Microbiology, VO 59 IS 3 SP 466 OP 471 DO https://doi.org/10.1099/ijs.0.65740-0 PB Microbiology Society, SN 1466-5034, AB Five strains, NBRC 3271T, NBRC 3272, NBRC 3263, NBRC 3260 and NBRC 3269 were examined genetically, phylogenetically, phenotypically and chemotaxonomically. The DNA G+C contents of the five strains were 55.1–56.4 mol%. The five strains had low levels of DNA–DNA hybridization of 13–51 % to the type strains of Gluconobacter frateurii, Gluconobacter thailandicus, Gluconobacter oxydans, Gluconobacter cerinus, Gluconobacter albidus and Gluconobacter kondonii and formed a cluster that was separate from the type strains of the six Gluconobacter species given above in phylogenetic trees based on 16S rRNA gene and 16S–23S rRNA gene internal transcribed spacer sequences. The five strains weakly produced dihydroxyacetone from glycerol, but not 2,5-diketo-d-gluconate or a water-soluble brown pigment from d-glucose and contained ubiquinone-10. The five strains were assigned as representing a novel species of the genus Gluconobacter, for which the name Gluconobacter japonicus sp. nov. is proposed. The type strain is NBRC 3271T (=BCC 14458T=strain 7T, K. Kondo). Cells of the type strain are motile by means of polar flagella and the DNA G+C content is 56.4 mol%., UL https://www.microbiologyresearch.org/content/journal/ijsem/10.1099/ijs.0.65740-0