Fig. 6

Transcriptional changes of genes involved in sulfur and GSH metabolism in the root and shoot of cadmium-treated Brassica napus seedlings. The metabolites are represented in gray boxes, arrows represent enzymatic reactions, and names of the enzymes and tissues are given under or above the colored bars. Colored bars on the arrows indicate relative expression of the corresponding genes across the three different biological replicates for the control (C1, C2 and C3; left) and cadmium treatment (T1, T2 and T3; right). Products with red and green color representations indicate an increase and decrease in products respectively, while the products with represented by blue color indicate products with both up- and down-regulation