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Poster De Conférence Année : 2015

Coupling physiology and mechanics in multicellular models of plant growth

Résumé

At the cellular level, plant growth results from the competition between the so-called turgor pressure and mechanical resistance from the cell walls. The turgor pressure itself results from a difference of osmotic pressure between the interior and the exterior of the cell: the plasmic membrane is semi-permeable, so that a higher solute (sugars, ions) concentration inside the cell leads to a water flux towards the cell and to a pressure rise; if the pressure exceeds a given threshold, the cell walls extend and the cell grows. Recently, different models of plant growth have attempted to incorporate mechanics of cell walls in tissue development [Boudon et al. 2015], but all of them make the assumption that turgor pressure is constant with time. In this work, we go one step further and include a model of the regulation of turgor pressure in a multicellular framework.
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Dates et versions

hal-01594262 , version 1 (26-09-2017)

Identifiants

  • HAL Id : hal-01594262 , version 1
  • PRODINRA : 396462

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Ibrahim Cheddadi, Valentina Baldazzi, Nadia Bertin, Michel Génard, Christophe Godin. Coupling physiology and mechanics in multicellular models of plant growth. 2015 - 8th Plant Biomechanics International Conference, Nov 2015, Nagoya, Japan. 2015. ⟨hal-01594262⟩
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