Figure 6.
Analysis of the MeGlcA distribution on xylan in the four gymnosperm lineages and Magnoliales. AIR prepared from representatives of each gymnosperm lineage: Cycad (E. gratus), Ginkgo (G. biloba), conifer (P. menziesii), and Gnetophyta (E. major) and a representative of Magnoliales (Magnolia x soulangeana), plus the eudicot Arabidopsis for comparison, were hydrolyzed by glucuronoxylanase GH30 and analyzed by PACE. The cycad, gingko, and conifer show UX6 and UAX6, but the Gnetophyta products are largely UX6. Marker (M), xylosyl oligosaccharides X1-X6.