Secretion of XET-active enzymes from haustoria of C. reflexa.
The localization of secreted XTHs is shown by fluorescence indicating the site-specific incorporation of XyGO-SR into xyloglucan. (a) Position of non-induced (left) and far-red light-induced (right) Cuscuta shoots on the XET test paper. (b) Fluorescence image of the XET test paper in (a) after incubation with parasite shoots and de-staining of background. Arrows point to single haustoria.