Figure 8.
Melatonin (MT) upholds the redox state of 2-Cys peroxiredoxin (2-CP) protein in tomato leaves under low-sulfur conditions. (a) Total 2-CP content, (b) the monomer-to-dimer ratio, and (c,d) the relative transcript abundance of genes encoding the 2-CP enzyme (full-length blots are presented in Supplementary Fig. S1). Fourteen-day-old tomato plants were supplied with an optimal amount of sulfur (S) or 1/10 of optimal sulfur (LS) for 15 days, and 100 µM of MT was supplied every five days for a total of three applications. Data are presented as the means of 4 biological replicates. The means denoted by the same letter did not significantly differ at P < 0.05 according to a Tukey’s test.