methylorhabdus methylorhabdus methylorhabdus is a genus of gram-negative bacteria. up to now there is only one species of this genus known (methylorhabdus multivorans) methylorhabdus scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: hyphomicrobiaceae genus: methylorhabdusdoronina et al. 1996 type species methylorhabdus multivorans species m. multivorans