xanthomonas cynarae xanthomonas cynarae xanthomonas cynarae is a species of bacteria. xanthomonas cynarae scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: xanthomonadales family: xanthomonadaceae genus: xanthomonas species: x. cynarae binomial name xanthomonas cynaraetrébaol et al. 2000,