thauera selenatis thauera selenatis thauera selenatis is a gram-negative rod-shaped motile bacterium from the genus of thauera with a single polar flagellum. thauera selenatis has the ability to generate energy by respiring anaerobically with the enzyme selenate reductase. thauera selenatis scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: rhodocyclales family: rhodocyclaceae genus: thauera species: t. selenatis binomial name thauera selenatismacy et al. 1993 type strain atcc 55363, ax, ax39