Laser scanning confocal images showing Z stacks projections imaging of infected <i>N. tabacum</i> plants showing oxidative burst in parenchyma cells.

<p>Plant tissue was loaded with H₂DCF-DA, washed, and infected with <i>S.</i> Typhimurium (A, C) and <i>P. syringae</i> (B, D). Epidermal tissues of the plant were examined by laser scanning confocal microscopy. The pseudocolor key was included and was applied to glow scale images (C and D). The laser setting, microscope filters and all other image parameters were identical in both images.