thioalkalivibrio denitrificans thioalkalivibrio denitrificans thioalkalivibrio denitrificancs is an obligately alkaliphilic and obligately chemolithoautotrophic sulfur-oxidizing bacteria. it was first isolated from soda lakes in northern russia. thioalkalivibrio denitrificancs scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: chromatiales family: ectothiorhodospiraceae genus: thioalkalivibrio species: t. denitrificancs binomial name thioalkalivibrio denitrificancssorokin et al. 2001