Root-Apex Proton Fluxes at the Centre of Soil-Stress Acclimation

Trends in Plant Science
Wei SiaoWeifeng Xu

Abstract

Proton (H+) fluxes in plant roots play critical roles in maintaining root growth and facilitating plant responses to multiple soil stresses, including fluctuations in nutrient supply, salt infiltration, and water stress. Soil mining for nutrients and water, rates of nutrient uptake, and the modulation of cell expansion all depend on the regulation of root H+ fluxes, particularly at the root apex, mediated primarily by the activity of plasma membrane (PM) H+-ATPases. Here, we summarize recent findings on the regulatory mechanisms of H+ fluxes at the root apex under three abiotic stress conditions - phosphate deficiency, salinity stress, and water deficiency - and present an integrated physiomolecular view of the functions of H+ fluxes in maintaining root growth in the acclimation to soil stress.

Citations

Oct 13, 2020·Frontiers in Plant Science·Ágnes Szepesi
Nov 20, 2020·Journal of Experimental Botany·D M S B DissanayakaWilliam C Plaxton
Dec 12, 2020·Computational and Structural Biotechnology Journal·Ilaria BassaniEric Galiana
May 19, 2021·International Journal of Phytoremediation·Azam NooriJason C White
May 26, 2021·Journal of Plant Physiology·Dev T BrittoHerbert J Kronzucker
Aug 21, 2021·Plant, Cell & Environment·Veronica SantoroLuisella Celi

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