While the movement of water through xylem tissue is relatively well understood, the movement of solute-laden sap through phloem is not. One possibility is the ‘pressure flow hypothesis’ proposed by ...

This is a preview. Log in through your library . Abstract Summary Although much is known about the hydraulics of xylem, the hydraulic interconnectivity and dimensional scaling of phloem with respect ...

Movement of THO and tritium-labeled photoassimilate was studied in intact fronds and frond cuttings of Macrocystis integrifolia following labeling of a mature blade by tritiated water. Both THO and ...