Figure 3.

Overexpression of MdWRKY31 maintains tomato fruit firmness during postharvest. (a) WT and MdWRKY31‐OEs (OE59 and OE62) tomato fruit during postharvest. Scale bars represent 1 cm. Fruit firmness (b), total pectin (c), water‐soluble pectin content (d), and the proportion of water‐soluble pectin (e), water loss (f) of tomato fruit in WT and two MdWRKY31 transgenic lines during postharvest. Data are shown as the mean ± SD. Experiments were repeated nine independent times. Different letters above the columns indicate significant differences (P < 0.05) as determined by one‐way ANOVA. Gel tissue (g) and cell wall expansion (h) of tomato fruit in WT and two MdWRKY31 transgenic lines at B10 stage. (i) The relative height of the settled sediment was taken as a measure of cell wall swelling. Data are shown as the mean ± SD. Every experiment was performed at least in triplicate. Different letters above the columns indicate significant differences (P < 0.05) as determined by one‐way ANOVA.