has part sulfate assimilation anaerobic respiration dissimilatory sulfite reductase (NADH) activity dissimilatory sulfate reduction https://github.com/geneontology/go-ontology/issues/26582 biological_process GO:0019420 MetaCyc:DISSULFRED-PWY The reduction of sulfate to hydrogen sulfide, which acts as a terminal electron acceptor. Sulfate is activated to adenosine-phosphosulfate (APS) which is then reduced to sulfite, which is in turn reduced to hydrogen sulfide. Wikipedia:Sulfate-reducing_microorganism dissimilatory sulphate reduction