dysgonomonas dysgonomonas dysgonomonas is a gram-negative and facultatively anaerobic genus from the family of dysgonomonadaceae which have been isolated from human sources. dysgonomonas bacteria can cause gastroenteritis in immunocompromised persons dysgonomonas scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: dysgonomonadaceae genus: dysgonomonashofstad et al. 2000 type species dysgonomonas gadei species d. alginatilytica d. capnocytophagoide d. gadei d. hofstadii d. macrotermitis d. mossii d. oryzarvi d. termitidis