Additional file 11: of Silicon protects soybean plants against Phytophthora sojae by interfering with effector-receptor expression

Figure S4. Expression profile of secondary metabolism-related genes. Gene expression shows a higher expression of 31 genes involved in flavonoid metabolism (a), nine genes involved in isoflavone metabolism (b) and 15 genes involved in isoprenoid metabolism (c) in Phytophthora sojae-inoculated soybean plants at 4 dpi under Si−- compared to Si+ treatment. Graph shows the average relative (%) expression at each timepoint based on the highest level of expression for each gene as a measure to showcase the trend in expression dynamics. Bars represent standard error from the mean (n = 5). (TIF 261 kb)