burkholderia pyrrocinia burkholderia pyrrocinia burkholderia pyrrocinia is a gram-negative bacterium which has been found in soil as well as in the sputum of patients with cystic fibrosis. burkholderia pyrrocinia scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: burkholderiaceae genus: burkholderia species: b. pyrrocinia binomial name burkholderia pyrrocinia(imanaka et al. 1965) vandamme et al. 1997 synonyms pseudomonas pyrrocinia imanaka et al. 1965