syntrophomonas zehnderi syntrophomonas zehnderi syntrophomonas zehnderi is a bacterium. it is anaerobic, syntrophic (in association with methanogens, particularly methanobacterium formicicum) and fatty acid-oxidizing. the type strain is ol-4t (=dsm 17840t =jcm 13948t). cells are slightly curved, non-motile rods. syntrophomonas zehnderi scientific classification domain: bacteria phylum: bacillota class: clostridia order: eubacteriales family: syntrophomonadaceae genus: syntrophomonas species: s. zehnderi binomial name syntrophomonas zehnderisousa et al. 2007