FIGURE 6. Fluorescent dye loading in the leaves ofCapparis odoratissima. (a) Abaxial deposition of 1 µL droplets LY revealed strong fluorescence towards the center of the peltate hairs. (b) Detail of the central region of the peltate hairs showing fluorescence in the cell walls (arrows). (c) Negative control showing absence of autofluorescence in the cell walls of the idioblasts with a 488nm wavelength. (d) Following abaxial loading of the dye, idioblasts showed a strong fluorescence in their walls. (e) Maximum projection of the lumen of an idioblast filled with LY dye after adaxial deposition. (f) Same as E, but with the dye loaded abaxially. Id, idioblast. LY adax, adaxial load of Lucifer yellow; LY abax, abaxial load of Lucifer Yellow. Scale bars: a = 100µm; b-f = 20µm.