Fig. 3
![Fig. 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12870-022-03759-7/MediaObjects/12870_2022_3759_Fig3_HTML.png)
Effects of N supply on mean (± SE, n = 4) activities of N assimilation-related enzymes in leaves and roots. a and f Leaf and root nitrate reductase (NR). b and g Leaf and root NADH-dependent glutamate 2-oxoglutarate aminotransferase (NADH-GOGAT). c and h Leaf and root glutamate oxaloacetate aminotransferase (GOT). d and i Leaf and root glutamate pyruvate aminotransferase (GPT). e and j Leaf and root glutamine synthase (GS)