Fig. 3From: Molecular and physiological mechanisms of tea (Camellia sinensis (L.) O. Kuntze) leaf and root in response to nitrogen deficiencyThe effect of N-deficiency on root N content (A), root NR activity (B), root NiR activity (C), root GOGAT activity (D), and root GS activity (E) of tea plants. The means of data were separated by student’s t-test, and bars were represented by mean ± standard error (SE, n = 6). Different letters above the bars indicated significant difference at P < 0.05Back to article page