The effect of oxygen on denitrification during steady-state growth of Paracoccus halodenitrificans.
Steady-state cultures of Paracoccus halodenitrificans were grown anaerobically prior to establishing steady states at different concentrations of oxygen. In the absence of oxygen, nitrate-limited cultures produced dinitrogen, and as the oxygen supply increased, these cultures produced nitrous oxide, then nitrite. These changes reflected two phenomena: the inactivation of nitrous oxide reductase by oxygen and the diversion of electrons from nitrite to oxygen.
D000332:Aerobiosis; D000641:Ammonia / Q000378:metabolism; D000693:Anaerobiosis; D007700:Kinetics; D009566:Nitrates / Q000378:metabolism; D010230:Paracoccus / Q000254:growth & development*
D009566:Nitrates; D000641:Ammonia