Fig. 2

Changes of cell size in rice roots in response to low and high N. a cell length in the elongation zone. b cell width in the elongation zone. c cell length in the maturation zone. d cell width in the maturation zone. e cell number in the meristematic zone, 10,000 μm². Asterisks indicate significant differences between the two N treatments, (as evaluated with ANOVA with Fisher’s LSD, *, p < 0.05, ns, not significant. n = 60 (cell length and width), n = 9 (cell number))