clostridium huakuii clostridium huakuii clostridium huakuii is a gram-positive, acetogenic, obligately anaerobic and spore-forming bacterium from the genus clostridium. clostridium huakuii scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: clostridiaceae genus: clostridium species: c. huakuii binomial name clostridium huakuiiruan et al. 2014 type strain accc 00698, lam1030, jcm 19186