paraburkholderia tuberum paraburkholderia tuberum paraburkholderia tuberum is a species of bacteria that is capable of symbiotic nitrogen fixation with the legume aspalathus carnosa. paraburkholderia tuberum scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: burkholderiaceae genus: paraburkholderia species: p. tuberum binomial name paraburkholderia tuberum(vandamme et al. 2003) sawana et al. 2015 synonyms burkholderia tuberum vandamme et al. 2003