fusibacter ferrireducens fusibacter ferrireducens fusibacter ferrireducens is a bacterium from the family peptostreptococcaceae. fusibacter ferrireducens scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: peptostreptococcaceae genus: fusibacter species: f. ferrireducens binomial name fusibacter ferrireducensqiu et al. 2021