Fig. 4
Effects of different treatments on endogenous H2S content in cucumber seedling roots. Cucumber seedlings treated with distilled water (Con), 200 μM CdCl2 for 48 h, 100 μM NaHS pretreatment for 24 h or 100 μM NaHS pretreatment + Cd for 48 h. The content of endogenous H2S after 24 h and 48 h were measured. The data are means ± SE of three independent experiments. Different letters indicate significant differences (P < 0.05; Duncan’s multiple range test). FW, fresh weight