alloprevotella tannerae alloprevotella tannerae alloprevotella tannerae is a gram-negative, obligately anaerobic, non-spore-forming, rod-shaped and non-motile bacterium from the genus of alloprevotella which has been isolated from a human gingival crevice. alloprevotella tannerae scientific classification domain: bacteria phylum: bacteroidota class: bacteroidia order: bacteroidales family: prevotellaceae genus: alloprevotella species: a. tannerae binomial name alloprevotella tannerae(moore et al. 1994) downes et al. 2013 synonyms prevotella tannerae