Fig. 5. Reduced (GSH) and oxidized glutathione (GSSG) (in nmol g^–1 fresh matter) in stems and leaves of Mediterranean saltbush exposed for 1, 2, and 3 wk to 0.1 mM Cd in nutrient solution. Each value is the mean of three replicates and vertical bars are standard errors. Note that vertical scaling is not the same for GSH and GSSG.