Fig. 7From: Exogenous melatonin increases salt tolerance in bitter melon by regulating ionic balance, antioxidant system and secondary metabolism-related genesEffect of application of melatonin (0, 75 and 150µM) on relative expression level of PAL (a), MAP30 (b), a-mmc (c) and polypeptide-p (d) genes in bitter melon leaves. Data are the average of 3 replicas ± standard error. Different letters show significant difference according to Duncan’s multiple range test at p ≤ 0.05Back to article page