methylorubrum rhodesianum methylorubrum rhodesianum methylorubrum rhodesianum is a species of alphaproteobacteria. it has been found on the international space station (iss) amongst others. methylorubrum rhodesianum scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: methylobacteriaceae genus: methylorubrum binomial name methylorubrum rhodesianum(green et al. 1988) green and ardley 2018 synonyms methylobacterium lusitanum doronina et al. 2002 methylobacterium rhodesianum green et al. 1988