How are driving forces of root water uptake altered in maize under water deficit?

Ding, Lei;Kolawole, Moustapha;D'Agostino, Marco;Thiébaut, Noémie;Couvreur, Valentin;et.al.
(2024) 12th International Symposium of the International Society of Root Research (Leipzig) — Location: Leipzig (4.June.2024)

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In vascular plants, water flows along decreasing gradients of pressure (Ψp ) or total water potential (Ψtot ). ➢ It was occasionally observed that water flowed along increasing gradients of water potential across roots (Miller, 1985; Enns et al., 2000; Rowan et al., 2000; Bai et al., 2007). ➢ By combining micro-hydrology modeling with cell solutes mapping data, it was suggested that osmotic potential (Ψo ) gradients across living cells may generate a complementary driving-force that is missing in the current paradigm of water flow across roots (Couvreur et al., 2021). This gradient may act as an active water pump.
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Ding, L., Kolawole, M., D’Agostino, M., Thiébaut, N., Dagbert, T., Degand, T., Mulligan, F., Heymans, A., Persson, D. O., & Couvreur, V. (2024). How are driving forces of root water uptake altered in maize under water deficit? 12th International Symposium of the International Society of Root Research (Leipzig), Leipzig. https://hdl.handle.net/2078.5/271044