halomonas nitroreducens halomonas nitroreducens halomonas nitroreducens is a gram-negative halophilic pseudomonadota, that is able to respire on nitrate and nitrite in anaerobiosis. halomonas nitroreducens scientific classification domain: bacteria phylum: pseudomonadota class: gammaproteobacteria order: oceanospirillales family: halomonadaceae genus: halomonas species: h. nitroreducens binomial name halomonas nitroreducensgonzález-domenech et al. 2008 halomonas nitroreducens's closest relatives are halomonas alimentaria, h. denitrificans, h. organivorans, and h. ventosa. the bacterium was studied taxonomically from a strain taken from a solar saltern in cáhuil, pichilemu, chile, by the university of granada.