Figure 2
From: Apple metabolism under oxidative stress affects plant cell wall structure and mechanical properties
Enzyme activity measurements for apples subjected to oxidative stress of various durations. The activity of four enzymes was measured: α-L-arabinofuranosidase (ABF), β-galactosidase (B-GAL), pectin methylesterase (PME) and polygalacturonase (PG). Data points show average values with standard deviations (points with bars) for all cultivars tested. Data points with different letter indices are significantly different (One-way ANOVA, Tukey HSD, p < 0.05, N = 18, three samples per each cultivar-treatment variant, two replicates per sample). Color-coded points indicate individual measurement for each apple cultivar: 
—Ligol cv., 
—Red Jonaprince cv., 
—Najdared cv.
