Lawsonia intracellularis (Gebhart et al. 1993) McOrist et al. 1995 Lawsonia intracellularis (Gebhart et al. 1993) McOrist et al. 1995 Universal Root Woese et al. 1990 Bacteria (None 2015) Woese et al. 1990 Desulfobacterota Waite et al. 2020 Desulfovibrionia Waite et al. 2020 Desulfovibrionales Kuever et al. 2006 emend. Waite et al. 2020 Desulfovibrionaceae Kuever et al. 2006 Lawsonia McOrist et al. 1995 Lawsonia intracellularis (Gebhart et al. 1993) McOrist et al. 1995 Lawsonia McOrist et al. 1995 Lawsonia intracellularis (Gebhart et al. 1993) McOrist et al. 1995 Liolios K. Chen I.M. Mavromatis K. Tavernarakis N. Hugenholtz P. Markowitz V.M. Kyrpides N.C. The Genomes On Line Database (GOLD) in 2009: status of genomic and metagenomic projects and their associated metadata 2010 38 D346 354 Nucleic Acids Research Nucleic Acids Res. 0305-1048 1362-4962 10.1093/nar/gkp848 19914934 Candidatus intracellularis Gebhart et al. 1993 Lawsonia intracellularis (Gebhart et al. 1993) McOrist et al. 1995 McOrist S. Gebhart C.J. Boid R. Barns S.M. Characterization of Lawsonia intracellularis gen. nov., sp. nov., the obligately intracellular bacterium of porcine proliferative enteropathy. 1995 45 4 820 825 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-45-4-820 7547305 Gebhart C.J. Barns S.M. McOrist S. Lin G.F. Lawson G.H. Ileal symbiont intracellularis, an obligate intracellular bacterium of porcine intestines showing a relationship to Desulfovibrio species 1993 43 3 533 538 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-43-3-533 8347512 McOrist S. Gebhart C.J. Boid R. Barns S.M. Characterization of Lawsonia intracellularis gen. nov., sp. nov., the obligately intracellular bacterium of porcine proliferative enteropathy. 1995 45 4 820 825 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-45-4-820 7547305 Candidatus intracellularis Gebhart et al. 1993 McOrist S. Gebhart C.J. Boid R. Barns S.M. Characterization of Lawsonia intracellularis gen. nov., sp. nov., the obligately intracellular bacterium of porcine proliferative enteropathy. 1995 45 4 820 825 International Journal of Systematic Bacteriology Int J Syst Bacteriol 0020-7713 10.1099/00207713-45-4-820 7547305