Fig. 6From: Oxidative damage, antioxidant mechanism and gene expression in tomato responding to salinity stress under in vitro conditions and application of iron and zinc oxide nanoparticles on callus induction and plant regenerationQuantitative expression analysis of APX (A), SOD (B) and GR (C) genes in four tomato cultivars exposed to salinity in vitro condition. Data are mean ± SD (n = 4 replicates)Back to article page