FIGURE 5.

Effects of mechanical wounding on relative transcript abundance of Rbohs, Prx103 and activities of cell-wall POD in the local and the systemic leaves of wheat under freezing stress. Relative transcript abundance of RbohD (A), RbohF (B), Prx103 (C), and activities of cell-wall POD (D). The local (fifth) leaves were separately pre-treated with distilled water, 5 mM DMTU or 100 μM DPI prior to wounding. At 10 days after wounding, the seedlings were exposed to freezing stress for 24 h. After 24 h recovery, both local and systemic (sixth) leaves were harvested for the measurement.