Pectin levels (as estimated by uronic acid content) in stem tissue from wild type and <i>rabA</i> knockout lines.

<p>Acetone insoluble solids were sequentially extracted with CDTA and Na₂CO₃ to generate ionically (clear) and covalently (grey) bound pectin, respectively represented to show individual levels and additive total pectin. Significance values are as follows; (p<0.001 (d.f,32 v.r,39.13) with letters annotating significant difference between means.