Figure 7.

Characterization of Col-CAT transgenic (lines 4, 6, and 7) plants inoculated with Y1H2Y3. A, Delay of necrosis in Col-CAT transgenic plants compared with the wild-type Col-0 (WT) at 10 dpi. B, Detection of H₂O₂ in control and Col-CAT plants inoculated with Y1H2Y3 using H₂DCFDA. Leaves were harvested at 10 dpi and photographed either by bright-field light microscopy (BF) or by fluorescence microscopy (H₂O₂). C, Development of necrotic symptoms in control and Col-CAT transgenic (lines 4, 6, and 7) plants. The percentage of symptomatic plants was calculated using 10 plants for each transgenic line.