Product Overview :
Significance of Measurement: Nitrate reductase (NR, EC 1.7.1.3) is a key enzyme in nitrate assimilation in plants and plays an important role in crop yield and quality.
Principle of Measurement: NR catalyzes the reduction of nitrate to nitrite. NADH exhibits a characteristic absorption peak at 340 nm, and changes in absorbance at 340 nm are used to determine NR activity.