Nitrobacteraceae Buchanan 1917 (Approved Lists 1980) emend. Hördt et al. 2020 Nitrobacteraceae Buchanan 1917 (Approved Lists 1980) emend. Hördt et al. 2020 Nitrobacter Winogradsky 1892 emend. Watson 1974 (Approved Lists 1980) Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Proteobacteria (sic) Garrity et al. 2021 Pseudomonadota corrig. Garrity et al. 2021 Alphaproteobacteriota (sic) Garrity et al. 2021 Alphaproteobacteria Garrity et al. 2006 Hyphomicrobiales Douglas 1957 (Approved Lists 1980) emend. Hördt et al. 2020 Nitrobacteraceae Buchanan 1917 (Approved Lists 1980) emend. Hördt et al. 2020 Hyphomicrobiales Douglas 1957 (Approved Lists 1980) emend. Hördt et al. 2020 Hyphomicrobiaceae Babudieri 1950 (Approved Lists 1980) emend. Hördt et al. 2020 Afifellaceae Hördt et al. 2020 Ahrensiaceae Hördt et al. 2020 Amorphaceae Hördt et al. 2020 Aurantimonadaceae Hördt et al. 2020 Blastochloridaceae Hördt et al. 2020 Boseaceae Hördt et al. 2020 Breoghaniaceae Hördt et al. 2020 Devosiaceae Hördt et al. 2020 Kaistiaceae Hördt et al. 2020 Parvibaculaceae Hördt et al. 2020 Phreatobacteraceae Hördt et al. 2020 Pleomorphomonadaceae Hördt et al. 2020 Pseudoxanthobacteraceae Hördt et al. 2020 Stappiaceae Hördt et al. 2020 Tepidamorphaceae Hördt et al. 2020 Ancalomicrobiaceae Dahal et al. 2018 emend. Felföldi et al. 2019 Bartonellaceae Gieszczykiewicz 1939 (Approved Lists 1980) emend. Brenner et al. 1993 Beijerinckiaceae Garrity et al. 2006 emend. Hördt et al. 2020 Brucellaceae Breed et al. 1957 (Approved Lists 1980) Chelatococcaceae Dedysh et al. 2016 Cohaesibacteraceae Hwang and Cho 2008 emend. Hördt et al. 2020 Methylobacteriaceae Garrity et al. 2006 emend. Hördt et al. 2020 Methylocystaceae Bowman 2006 emend. Hördt et al. 2020 Notoacmeibacteraceae Huang et al. 2017 emend. Hördt et al. 2020 Phyllobacteriaceae Mergaert and Swings 2006 emend. Hördt et al. 2020 Rhizobiaceae Conn 1938 (Approved Lists 1980) emend. Hördt et al. 2020 Rhodobiaceae Garrity et al. 2006 emend. Hördt et al. 2020 Xanthobacteraceae Lee et al. 2005 emend. Hördt et al. 2020 Acuticoccaceae Lai et al. 2019 Incertae sedis 664 Nakai et al. 2021 Nitrosomonas Winogradsky 1892 (Approved Lists 1980) emend. Campbell et al. 2011 Nitrosospira Winogradsky and Winogradsky 1933 (Approved Lists 1980) emend. Head et al. 1993 Nitrosococcus Winogradsky 1892 (Approved Lists 1980) emend. Wang et al. 2016 Nitrobacter Winogradsky 1892 emend. Watson 1974 (Approved Lists 1980) Afipia Brenner et al. 1992 emend. La Scola et al. 2002 Blastobacter Zavarzin 1961 (Approved Lists 1980) emend. Sly 1985 Bradyrhizobium Jordan 1982 Agromonas Ohta and Hattori 1985 Pseudolabrys Kämpfer et al. 2006 emend. Jung et al. 2022 Pseudorhodoplanes Tirandaz et al. 2015 Rhodopseudomonas Czurda and Maresch 1937 (Approved Lists 1980) emend. Imhoff et al. 1984 Tardiphaga De Meyer et al. 2012 Variibacter Kim et al. 2014 Rhodoplanes Hiraishi and Ueda 1994 Undibacter Jung et al. 2022 Jung G.-Y. Nam I.-H. Kim S.-J. Undibacter mobilis gen. nov., sp. nov. isolated from an artificial wetland in Okcheon, Korea. 2022 72 5 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijsem.0.005369 35576239 Breed R.S. Murray E.G.D. Smith N.R. Breed R.S. Murray E.G.D. Smith N.R. Order I. Pseudomonadales Orla-Jensen, 1921 1957 7 35 261 Bergey's Manual of Determinative Bacteriology The Williams and Wilkins Co. Baltimore Breed R.S. Murray E.G.D. Smith N.R. Breed R.S. Murray E.G.D. Smith N.R. Suborder II. Pseudomonadineae Breed, Murray and Smith, Sub-Ordo Nov. 1957 7 67 261 Bergey's Manual of Determinative Bacteriology The Williams and Wilkins Co. Baltimore Hördt A. García-López M. Meier-Kolthoff J.P. Tindall B.J. Weinhold L.-M. Gronow S. Kyrpides N. Woyke T. Schleuning M. Göker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria 2020 11 468 Frontiers in Microbiology Front. Microbio. 1664-302X 10.3389/fmicb.2020.00468 32373076 Watson S.W. Buchanan R.E. Gibbons N.E. Genus VI. Nitrosococcus Winogradsky 1892, 127; Nom. cons. Opin. 23, Jud. Comm. 1958, 169 1974 8 454 455 Bergey's Manual of Determinative Bacteriology The Williams and Wilkins Co. Baltimore 0683011170 Bradyrhizobiaceae Garrity et al. 2006 Bradyrhizobiaceae Garrity et al. 2006 Incertae sedis 121 Tirandaz et al. 2015 Buchanan R.E. Studies on the Nomenclature and Classification of the Bacteria: III. The Families of the Eubacteriales. 1917 2 4 347 350 Journal of Bacteriology J Bacteriol 0021-9193 1098-5530 16558750 Skerman V.B.D. McGowan V. Sneath P.H.A. Approved Lists of Bacterial Names 1980 30 1 225 420 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-30-1-225 Hördt A. García-López M. Meier-Kolthoff J.P. Tindall B.J. Weinhold L.-M. Gronow S. Kyrpides N. Woyke T. Schleuning M. Göker M. Analysis of 1,000+ Type-Strain Genomes Substantially Improves Taxonomic Classification of Alphaproteobacteria 2020 11 468 Frontiers in Microbiology Front. Microbio. 1664-302X 10.3389/fmicb.2020.00468 32373076