1.14.13.61 2-Oxo-1,2-dihydroquinoline + NADH + O2 second enzyme in the quinoline degradation pathway. The reductase component and the oxygenase component are inducible by the substrate 2-oxo-1,2-dihydroquinoline 1.14.13.61 quinolin-2-ol + NADH + O2 the N-heteroaromatic compound quinoline acts as sole source of carbon, nitrogen, and energy in the aerobic soil bacterium