The plant water pump: why does water flow uphill of water potential gradients in my model of the root hydraulic anatomy

Couvreur, Valentin;Lobet, Guillaume;Meunier, Félicien;Heymans, Adrien;Draye, Xavier;et.al.
(2020) 9th International Conference on FUNCTIONAL-STRUCTURAL PLANT MODELS — Location: Hanovre (5.October.2020)

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Abstract
Guttation is the exudation of xylem sap from vascular plant leaves. This process is particularly interesting because in its configuration root water uptake occurs against the hydrostatic pressure driving force. Hence, it emphasizes the contribution of another driving force that lifts water in plants: the osmotic potential gradient.
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Couvreur, V., Lobet, G., Meunier, F., Heymans, A., Saint Cast, C., & Draye, X. (2020). The plant water pump: why does water flow uphill of water potential gradients in my model of the root hydraulic anatomy. In Katrin Kahlen, Tsu-Wei Chen, Andreas Fricke, Hartmut Stützel (ed.), FSPM2020: Towards Computable Plants (p. p. 193 p). Institute of Horticultural Production Systems. https://hdl.handle.net/2078.5/239117