Figure 3.

WANS from celery collenchyma cell walls. A, Scattering patterns in H form (right half) and after deuterium exchange of hydroxyl groups accessible to water (left half). The fiber axis is vertical. B, Difference scattering pattern (D − H). C, Equatorial scattering profiles from cell walls in H form, D form, and difference (D − H). D, Scattering profiles on the fiber axis from cell walls in H form, D form, and difference (D − H). E, Azimuthal scattering profiles across the 200 reflection. [See online article for color version of this figure.]