Figure 4
From: Melatonin alleviates low-sulfur stress by promoting sulfur homeostasis in tomato plants
Melatonin (MT) enhances sulfur uptake and assimilation under limited S supply. (a) Endogenous melatonin content (b) relative expression of melatonin biosynthetic gene, (c) S content and (d,e) transcript abundance of sulfate transporter genes under sulfur deficiency in tomato. 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 replicates. The means denoted by the same letter did not significantly differ at P < 0.05 according to a Tukey’s test.
