caballeronia sordidicola caballeronia sordidicola caballeronia sordidicola is a species of bacteria which has been reported to perform biological nitrogen fixation and promote plant growth caballeronia sordidicola scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: burkholderiaceae genus: caballeronia species: c. sordidicola binomial name caballeronia sordidicola(lim et al. 2003) dobritsa and samadpour 2016 synonyms burkholderia sordidicola lim et al. 2003