Fig. 9From: Iris lactea var. chinensis plant drought tolerance depends on the response of proline metabolism, transcription factors, transporters and the ROS-scavenging systemComparison of O2·- and H2O2 accumulation in Iris lactea var. chinensis leaves under normal watering (CK), water-stressed (T), and rehydration -treated (R) condition. a NBT staining, b DAB staining. Arrow indicate the location of O2·- and H2O2 accumulationBack to article page