Fig. 5
Effects of H2S on H2O2, O2·−, MDA and ELP under Cd stress in cucumber seedling roots. Cucumber seedlings pretreated with 100 μM NaHS were exposed to Cd stress for 48 h and analyzed for the content of H2O2(a),阿2·−(b), MDA (c), and ELP (d). The data are means ± SE of three independent experiments. Different letters indicate a statistically significant difference (P < 0.05; Duncan’s multiple range test). FW, fresh weight