Fig. 2
From: Low pH effects on reactive oxygen species and methylglyoxal metabolisms in Citrus roots and leaves
Effects of low pH on ascorbate peroxidase (APX; a, h), monodehydroascorbare reductase (MDHAR; b, i), dehydroascorbate reductase (DHAR; c, j), glutathione reductase (GR; d, k), superoxide dismutase (SOD, e, l), catalase (CAT, f, m) and guaiacol peroxidase (GuPX, g, n) activities in Citrus grandis and Citrus sinensis leaves (a-g) and roots (h-n). Bar represent mean ± SE (n = 4 except for 8 for APX, MDHAR and DHAR). Different letters above the bars indicate a significant difference at P < 0.05