Fig. 10

Antioxidant enzyme (SOD, POD, and CAT) activity and expression of ROS-scavenging genes in WT and transgenic tomato plants exposed to cold stress. a SOD activity. b POD activity. c CAT activity. d Expression level of LeSOD. e Expression level of LePOD. f Expression level of LeCAT. Uniformly sized 6-week-old tomato plants were subjected to a 5-day cold stress exposure at 4 °C. Leaves that were the second and third from the top were assessed. Data are the means and SDs from triplicate samples.*P < 0.05 and **P < 0.01