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Toward a mechanical model of 3D fruit development

Ibrahim Cheddadi 1, 2 Christophe Godin 1 Frédéric Boudon 1, 3 Valentina Baldazzi 2 Michel Génard 2 Nadia Bertin 2
1 VIRTUAL PLANTS - Modeling plant morphogenesis at different scales, from genes to phenotype
CRISAM - Inria Sophia Antipolis - Méditerranée , INRA - Institut National de la Recherche Agronomique, UMR AGAP - Amélioration génétique et adaptation des plantes méditerranéennes et tropicales
Abstract : Understanding the controlling factors of fruit quality development is challenging, because fruit quality results from the interplay between physical and physiological processes that are under the control of genes and the environment. Although process-based models have been used to make significant progress in understanding these factors, they ignored to a large extent the shape and internal structure of the fruit, as well as mechanical interactions that are essential to properly model growth. To help characterizing effects of fruit shape and internal structure on quality, the creation of a 3D virtual fruit model that integrates fruit structure and function with growth governed by environmental inputs is investigated : we combine on the one hand a modeling pipeline that creates a 3D volumetric mesh of the internal fruit structure, including vasculature, and couples it with water and carbon transport; and on the other hand, a mechanical description where growth is related to the extension of the cell walls, which is triggered when the so-called turgor pressure inside the cells exceeds a given threshold. This approach is applied to study tomato fruit, in particular the influence of the mechanical properties of the cuticle on the global growth and the shape of the fruit.
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Conference papers
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https://hal.inria.fr/hal-01237387
Contributor : Christophe Godin <>
Submitted on : Monday, December 7, 2015 - 5:26:05 PM
Last modification on : Wednesday, March 24, 2021 - 11:52:02 AM

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  • HAL Id : hal-01237387, version 1
  • PRODINRA : 350186

Citation

Ibrahim Cheddadi, Christophe Godin, Frédéric Boudon, Valentina Baldazzi, Michel Génard, et al.. Toward a mechanical model of 3D fruit development. International Symposium on Modelling in Fruit Research and Orchard Management, Jun 2015, Montpellier, France. 1 p. ⟨hal-01237387⟩

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