Fig. 4
From: Low pH effects on reactive oxygen species and methylglyoxal metabolisms in Citrus roots and leaves
Effects of low pH on ATP sulphurylase (ATPS; a, i), cysteine synthase (CS; b, j), glutathione S-transferase (GST; c, k), glutathione peroxidase (GlPX; d, l), adenosine 5′-phosphosulfate reductase (APR; e, m), sulfite reductase (SiR; f, n), γ-glutamylcysteine synthase (γGCS; g, o) and glutamine synthetase (GS; h, p) activities in Citrus grandis and Citrus sinensis leaves (a-h) and roots (i-p). Bar represent mean ± SE (n = 8 except for 4 for GST and GS). Different letters above the bars indicate a significant difference at P < 0.05. OAS: O-acetyl-l-serine