lactivibrio lactivibrio lactivibrio is a genus of bacteria from the family of synergistaceae with one known species (lactivibrio alcoholicus). lactivibrio alcoholicus has been isolated from mesophilic granular sludge from tokyo in japan. lactivibrio scientific classification domain: bacteria phylum: synergistota class: synergistia order: synergistales family: synergistaceae genus: lactivibrioqiu et al. 2014 type species lactivibrio alcoholicus species l. alcoholicus