rhodobaculum rhodobaculum rhodobaculum is an alkaliphilic genus of bacteria from the family of rhodobacteraceae with one known species (rhodobaculum claviforme). rhodobaculum claviforme has been isolated from saline alkaline steppe lakes from siberia. rhodobaculum scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: rhodobaculumbryantseva et al. 2015 type species rhodobaculum claviforme species r. claviforme