xanthobacter xanthobacter xanthobacter is a genus of gram-negative bacteria from the family xanthobacteraceae. xanthobacter scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: xanthobacteraceae genus: xanthobacterwiegel et al. 1978 type species xanthobacter autotrophicus species x. agilis jenni and aragno 1988 x. aminoxidans doronina and trotsenko 2003 x. autotrophicus (baumgarten et al. 1974) wiegel et al. 1978 (approved lists 1980) x. flavus malik and claus 1979 (approved lists 1980) "xanthobacter polyaromaticivorans" hirano et al. 2004 x. tagetidis padden et al. 1997 x. viscosus doronina and trotsenko 2003 phylogeny the currently accepted taxonomy is based on the list of prokaryotic names with standing in nomenclature (lpsn). the phylogeny is based on whole-genome analysis. xanthobacter xanthobacter agilis xanthobacter tagetidis xanthobacter flavus xanthobacter aminoxidans xanthobacter autotrophicus xanthobacter viscosus outgroup azorhizobium