aminobacterium aminobacterium aminobacterium is a gram-negative genus of bacteria from the family of synergistaceae. aminobacterium scientific classification domain: bacteria phylum: synergistota class: synergistia order: synergistales family: synergistaceae genus: aminobacteriumbaena et al. 1999 type species aminobacterium colombiensebaena et al. 1999 species a. colombiense a. mobile a. thunnarium phylogeny