clostridium akagii clostridium akagii clostridium akagii is a nitrogen-fixing and anaerobic bacterium from the genus clostridium which has been isolated from the fichtel mountains in germany. clostridium akagii scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: clostridiaceae genus: clostridium species: c. akagii binomial name clostridium akagiikuhner et al. 2000 type strain atcc baa-166, ck58, dsm 12554