Force-Driven Polymerization and Turgor-Induced Wall Expansion

Abstract : While many molecular players involved in growth control have been identified in the past decades, it is often unknown how they mechanistically act to induce specific shape changes during development. Plant morphogenesis results from the turgor-induced yielding of the extracellular and load-bearing cell wall. Its mechanochemical equilibrium appears as a fundamental link between molecu- lar growth regulation and the effective shape evolution of the tissue. We focus here on force-driven polymerization of the cell wall as a central process in growth control. We propose that mechanical forces facilitate the insertion of wall components, in particular pectins, a process that can be modulated through genetic regulation. We formalize this idea in a mathematical model, which we subsequently test with published experimental results.
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Trends in Plant Science, Elsevier, 2016, 21 (5), pp.398 - 409. 〈10.1016/j.tplants.2016.01.019〉
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Contributeur : Olivier Ali <>
Soumis le : vendredi 12 octobre 2018 - 16:25:08
Dernière modification le : samedi 13 octobre 2018 - 01:18:54

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Olivier Ali, Jan Traas. Force-Driven Polymerization and Turgor-Induced Wall Expansion. Trends in Plant Science, Elsevier, 2016, 21 (5), pp.398 - 409. 〈10.1016/j.tplants.2016.01.019〉. 〈hal-01396586〉

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