Overexpression of CaAPX Induces Orchestrated Reactive Oxygen Scavenging and Enhances Cold and Heat Tolerances in Tobacco

Figure 5

The contents of MDA, H₂O₂, and electrolyte leakage rates in plants under temperature stress. (a) MDA concentration of transgenic and WT plants under 4°C temperature stress. (b) MDA concentration of transgenic and WT plants under 38°C temperature stress. (c) H₂O₂ concentration of transgenic and WT plants under 4°C temperature stress. (d) H₂O₂ concentration of transgenic and WT plants under 38°C temperature stress. (e) Electrolyte leakage rates of transgenic and WT plants under low temperature stress. (f) Electrolyte leakage rat of transgenic and WT plants under high temperature stress. L1, L2, and L3: 3 lines of CaAPX transgenic tobacco. WT: wild type. FW: fresh weight.

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