Xanthomonas alfalfae citrumelonis Schaad et al. 2007 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 Gammaproteobacteria Garrity et al. 2005 emend. Williams and Kelly 2013 Lysobacterales Christensen and Cook 1978 (Approved Lists 1980) emend. Naushad et al. 2015 Lysobacteraceae Christensen and Cook 1978 (Approved Lists 1980) emend. Naushad et al. 2015 Xanthomonas (Bergey et al. 1923) Dowson 1939 (Approved Lists 1980) emend. Vauterin et al. 1995 Xanthomonas alfalfae (ex Riker et al. 1935) Schaad et al. 2007 Xanthomonas alfalfae citrumelonis Schaad et al. 2007 Xanthomonas alfalfae (ex Riker et al. 1935) Schaad et al. 2007 Xanthomonas alfalfae alfalfae (ex Riker et al. 1935) Schaad et al. 2007 E Xanthomonas alfalfae citrumelonis Schaad et al. 2007 Euzéby J. Validation List No. 115. List of new names and new combinations previously effectively, but not validly, published 2007 57 5 893 897 International Journal of Systematic and Evolutionary Microbiology Int J Syst Evol Microbiol 1466-5026 1466-5034 10.1099/ijs.0.65207-0 17473228 Listed as quarantine organism in the European Union. Listed as dual use organism in the European Union. Schaad N.W. Postnikova E. Lacy G. Sechler A. Agarkova I. Stromberg P.E. Stromberg V.K. Vidaver A.K. Emended classification of xanthomonad pathogens on citrus 2006 29 6 690 695 Systematic and Applied Microbiology Syst Appl Microbiol 0723-2020 10.1016/j.syapm.2006.08.001 17183629