Figure 1. Time course changes of GSH pool and H₂S synthesis upon Cd stress.

Upon 200 µM CdCl₂ treatment for 12 h, contents of (h)GSH (A), (h)GSSG(h) (B) and H₂S (D), the ratio of (h)GSH/(h)GSSG(h) (C), and the activities of LCD (E) and DCD (F) in root tissues were analyzed. Values are means ± SD of three independent experiments with three replicates for each. Bars denoted by the same letter did not differ significantly at P<0.05 according to Duncan's multiple range test.