Research Article

Physiological Responses and Proteomic Analysis on the Cold Stress Responses of Annual Pitaya (Hylocereus spp.) Branches

Figure 4

The changes of enzyme activities of SOD (a), POD (b), and CAT (c) of the annual branches of the three varieties of pitaya with cold treatment. ā€œā€ indicates the enzyme activity changes of SOD, POD, and CAT with a significant difference at compared with the control group.
(a)
(b)
(c)