Fig. 2

Spikelet cell number and size analysis using SEM. Cell density for a fixed area in the outer surface of a palea and b lemma for WT, mutant (KO) and C4. c Cell density expressed as number of cells/sq.mm of the outer surface of palea and lemma for WT, KO and C4. d Cell size parameters, depicting cell width and cell length and e Cell area in sq.μm, for the inner surface of palea and lemma. Data represent the mean ± SE (n = 9). Same letters indicate insignificant differences between the lines tested using ANOVA (Tukey’s test) with significance level of p < 0.05. Horizontal bars represent 100 μm