Fig. 3.

Quantification of XEG released XyG oligos by HPAEC-PAD from various cell wall fractions as outlined in Figure S2. a Buffer-soluble XyG oligos. b XyG composition of 4 M KOH extract. c XyG composition released by XEG from AIR without prior extraction. d XyG composition of 4 M KOH extract after previous XEG digestion. Numbers (1, 2, 3, 4) refer to the extraction overview in Fig. S2. The mean quantity (n = 6, ±SD) of XyG oligos is shown. Asterisks indicate consistent significant changes of all three mutant lines compared to wild type and complementation line (** p = 0.01, *** p = 0.001) using pairwise comparisons with Student’s t test