Stachyose Translocation in Plants

Abstract
Following application of C14O2 to leaves of Acer negundo, Fraxinus americana, Cucurbita pepo, and Verbascum thapsus for periods of less than 1 hour, samples of midvein and petiole were analyzed to determine distribution of labelled sugars for translocation analysis. Sucrose was the principal labelled material from the transport area of Acer negundo. Stachyose contained the greatest proportion of label in the other 3 species. It is concluded that stachyose may be the principal carbohydrate transported in some species.