Propionibacterium acidifaciens Downes and Wade 2009 Dataset NCBI Taxonomy Classification phylum Actinomycetota class Actinomycetes order Propionibacteriales family Propionibacteriaceae genus Propionibacterium species Propionibacterium acidifaciens Name Homonyms Propionibacterium acidifaciens Propionibacterium acidifaciens Downes and Wade 2009