microbacter microbacter microbacter is a genus of bacteria from the family of porphyromonadaceae, with one known species (microbacter margulisiae). microbacter scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: porphyromonadaceae genus: microbactersánchez-andrea et al. 2014 type species microbacter margulisiae species m. margulisiae