cumulibacter cumulibacter cumulibacter is a gram-positive genus of bacteria from the family of geodermatophilaceae. cumulibacter manganitolerans has been isolated from sludge from a manganese mine. cumulibacter scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: geodermatophilales family: geodermatophilaceae genus: cumulibacterhuang et al. 2017 type species cumulibacter manganitoleranshuang et al. 2017 species c. manganitolerans huang et al. 2017 c. soli gao et al. 2020