Additional file 1: of Unmethyl-esterified homogalacturonan and extensins seal Arabidopsis graft union

Figure S1. Immunohistochemistry of grafted hypocotyl sections –homogalacturonan (LM7 and LM8 epitopes). A – lack of fluorescence signal. A′ A, Calcofluor White. B – epitope detected in random sections (arrow) between groups of tracheary elements (asterisk) and other graft union cells. C – epitope present in some locations (arrow) within graft union area. c Calcofluor White. Scale bars: A and A′ = 50 μm; B and C = 10 μm (JPG 2277 kb)