Figure 8.

Size-Exclusion Chromatography, Using Refractive Index Detection, of Pectin Fractions Obtained from Stems of Wild-Type and fra8 Plants.

Pectin fractions were treated with 0.1 M HCl for 1 h to dissociate the borate-diester cross-linked RGII dimers into monomers. RI, refractive index.

(A) Pectin fractions from wild-type plants before (solid lines) and after (dashed lines) mild-acid treatment.

(B) Pectin fractions from fra8 plants before (solid lines) and after (dashed lines) mild-acid treatment.