Fig. 7

The activity of reactive oxygen species (ROS)-scavenging enzymes in salicylic acid (SA), TYLCV, and SA + TYLCV treated plants leaves. a, (b), and (c) are the activities of superoxide dismutase (SOD), peroxidase (POD), and ascorbate peroxidase (APX) in ‘Zhefen-702’, respectively. d, (e) and (f) are these ROS-scavenging enzymes in ‘Jinpeng-1’. The plants were first treated with SA through foliar spray, and then inoculated or non-inoculated with TYLCV. The leaves were harvest after inoculated or non-inoculated with TYLCV 2, 4, 10, 14 days and detected the activities of SOD, POD and APX. Values are means ±SD of three replicates