Fig. 8

Immunohistochemistry of extensins in the grafted hypocotyls (whole mount). a – epitopes occurring abundantly on the surface of the graft union cells (arrowheads), at the cut surface (arrows), and in some of the epidermal cells (full arrows), dotted lines – outline of the scion and stock. b and c – epitope detected in the outer walls and cuticle of the scion and stock epidermal cells (full arrows), on the surface of the graft union cells (arrowheads), and at the cut surface (arrows). d – epitope occurring abundantly on the surface of the graft union cells (arrowhead), at the cut surface (arrows), and in some of the epidermal cells (full arrows), dotted lines – outline of the scion. e – epitope detected on the surface of the graft union cells (arrowheads) and in the bead-like structures (arrows). c Calcofluor White. Scale bars: a–d = 50 μm; e = 20 μm