Figure 3. Effect of high temperature stress on expression of antioxidant genes in 2nd instar larvae of F. occidentalis.
(A) SOD, superoxide dismutase; (B) POD, peroxidase; (C) GST, glutathione-S-transferase. Larvae were exposed to 31, 33, 35, 37, 39, and 41 °C for 1 h in glass tubes; 26 °C was used as the control. Expression levels were normalized with respect to GAPDH. Values represent the mean (±SE) of four replications, and columns labeled with different letters indicate significance at P < 0.05 in ANOVA (Ducan’s test).