xanthomonas theicola xanthomonas theicola xanthomonas theicola is a species of bacteria. xanthomonas theicola scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: xanthomonadales family: xanthomonadaceae genus: xanthomonas species: x. theicola binomial name xanthomonas theicolavauterin et al. 1995