Figure 2

Comparison of CF and AgNO ₃ staining in potato tissues. Plants were labelled with aqueous CFDA and left to translocate for 5 h prior to harvesting. Tubers or stems were hand sectioned and sections were either incubated in mineral oil and examined under a confocal microscope for CF fluorescence or stained for AsA using ethanolic AgNO₃. Confocal images are shown on the left and silver stained sections on the right of each panel. A, stem (bar = 2 mm); B, developing tuber (bar = 3 mm); C, large developing tuber (bar = 5 mm).