If homogalacturonan were a side chain of rhamnogalacturonan I. Implications for cell wall architecture.

Graduate School Experimental Plant Sciences, Laboratory of Plant Breeding, Wageningen University, Binnenhaven 5, 6709 PD Wageningen, The Netherlands (J.-P.V., R.J.F.J.O., R.G.F.V.); Laboratory of Food Chemistry, Wageningen University, Bomenweg 2, 6703 HD Wageningen, The Netherlands (J.-P.V., H.A.S., A.G.J.V.); Department of Biological Sciences, Purdue University, West Lafayette, Indiana 47907–1392 (M.C.M.); and Biotechnology Group, Danish Institute of Agricultural Sciences, 40 Thorvaldsensvej, DK–1871 Frederiksberg C, Denmark (P.U.)