dysgonomonas oryzarvi dysgonomonas oryzarvi dysgonomonas oryzarvi is a gram-negative, short-rod-shaped, anaerobic and non-motile bacterium from the genus of dysgonomonas. dysgonomonas oryzarvi scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: dysgonomonadaceae genus: dysgonomonas species: d. oryzarvi binomial name dysgonomonas oryzarvikodama et al. 2012 type strain jcm 16859, kctc 5936, dy73