Figure 3.

Indirect immunofluorescence labelling of sections through tobacco endosperm cells immuno with LM5 galactan, LM6 arabinan and RU1 RG backbone antibodies using untreated sections (left) and after pre-treatment with endo-β–mannanase (+EβM) to remove the abundant heteromannan (right). The yellow lines indicate cell-wall regions where transects of fluorescence intensity were determined (see Figure 4). Scale bar = 10 μm.