monaibacterium monaibacterium monaibacterium is a gram-negative and aerobic genus of bacteria from the family of rhodobacteraceae with one known species (monaibacterium marinum). monaibacterium marinum has been isolated from seawater from the menai strait. monaibacterium scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: monaibacteriumchernikova et al. 2017 type species monaibacterium marinum species m. marinum