Fig. 3

Histological analysis of the leaf blades between WT and rel2 mutant. a Transverse section of large vein and small vein at the middle of the third leaf from the top at heading stage, Bars = 100 μm. b Transverse section of leaf blades at the middle of the third leaf from the top at heading stage, Bars = 200 μm. c Statistics analysis of the number of bulliform cells besides large veins and small veins between WT and rel2 mutant, data are mean ± SD (n ≥ 10). d Statistics analysis of the depth of bulliform cells on the sides of large veins and small veins between WT and rel2 mutant, data are mean ± SD (n ≥ 10). Double asterisk (* *) indicates that the difference between the WT and rel2 is statistically significant at P < 0.01