microvirga ossetica microvirga ossetica microvirga ossetica is a gram-negative bacterium from the genus of microvirga which has been isolated from the nodules of the plant vicia alpestris from north ossetia. microvirga ossetica scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: methylobacteriaceae genus: microvirga species: m. ossetica binomial name microvirga osseticasafronova et al. 2017 type strain lmg 29787, v5/3m, rcam 02728