Fig. 2From: Hydrogen sulfide negatively regulates cd-induced cell death in cucumber (Cucumis sativus L) root tip cellsEffects of 200 μM Cd treatment on cell death in root tips of cucumber seedlings. a Roots stained with Evans blue at different times (0, 12, 24, 36, and 48 h). b Quantitative analysis of root tip cell death in cucumber seedlings. Scale bar indicates 500 μm. The data are means ± SE of three independent experiments. Different letters indicate significant differences (P < 0.05; Duncan’s multiple range test). FW, fresh weightBack to article page