dysgonomonas gadei dysgonomonas gadei dysgonomonas gadei is a gram-negative and facultatively anaerobic bacterium from the genus of dysgonomonas which has been isolated from a gall bladder from a patient in bergen in norway. dysgonomonas gadei scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: dysgonomonadaceae genus: dysgonomonas species: d. gadei binomial name dysgonomonas gadeihofstad et al. 2000 type strain atcc baa-286, ccug 42882, cip 106420, hofstad 1145589, jcm 16698