Fig. 4: Comparison of metabolites level in the heatmap in each tissue located at the two regions corresponding to the border (N(B)) and watercore region (N(W)) in normal apple fruit and each tissue (border (B), and watercore (W) regions) in watercored apples.

The metabolites level indicates the ratio of N(B) or N(W) region to normal parenchyma region of normal apple fruit, and B or W region to normal outer parenchyma region in the watercored apples. The data were the means ± SE of 7–10 apple fruit. ACC 1-aminocyclopropane-1-carboxylic acid