Figure 2From: Differential patterns of reactive oxygen species and antioxidative mechanisms during atrazine injury and sucrose-induced tolerance in Arabidopsis thaliana plantletsVisualization of superoxide radical detected by NBT staining. Detections have been done on 3-week-old MS-grown Arabidopsis thaliana plantlets subjected to subsequent treatment (12, 24, 48 or 72 hours) with 80 mM mannitol (M), 80 mM sucrose (S), 80 mM mannitol plus 10 μM atrazine (MA) or 80 mM sucrose plus 10 μM atrazine (SA). Groups of 15 plantlets are shown. Quantification of superoxide radical is presented in Additional file 2.Back to article page