roseibaca roseibaca roseibaca is a genus of bacteria from the family of rhodobacteraceae. roseibaca scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: rhodobacterales family: rhodobacteraceae genus: roseibacalabrenz et al. 2009 type species roseibaca ekhonensis species r. calidilacus r. ekhonensis