Turgor Pressures in Phloem: Measurements on Hevea Latex.


Hydrostatic pressures in laticiferous phloem tissues of Hevea brasiliensis trees exhibit a diurnal fluctuation, with minimum values occurring during the day. Pressure decreases with increasing height up the trunk, the gradient becoming greater under conditions of rapid transpiration. Sieve-tube turgor must be controlled independently if pressure-flow is to occur in the expected direction.

Cite this paper

@article{Buttery1964TurgorPI, title={Turgor Pressures in Phloem: Measurements on Hevea Latex.}, author={B. R. Buttery and Sonja Boatman}, journal={Science}, year={1964}, volume={145 3629}, pages={285-6} }