dyadobacter fermentans dyadobacter fermentans dyadobacter fermentans is a gram-negative bacterium from the genus of dyadobacter which has been isolated from the stem of a zea mays plant. dyadobacter fermentans scientific classification domain: bacteria phylum: bacteroidota class: cytophagia order: cytophagales family: spirosomaceae genus: dyadobacter species: d. fermentans binomial name dyadobacter fermentanschelius and triplett 2000 type strain atcc 700827, cip 107007, dsm 18053, ncimb 13785, ns114 synonyms dyadobacter fermentens