Integrating Physiology and Architecture in Models of Fruit Expansion

Mikolaj Cieslak 1, 2 Ibrahim Cheddadi 1, 2 Frédéric Boudon 2, 3 Valentina Baldazzi 4, 1 Michel Génard 1 Christophe Godin 2 Nadia Bertin 1
2 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
4 BIOCORE - Biological control of artificial ecosystems
INRA - Institut National de la Recherche Agronomique, CRISAM - Inria Sophia Antipolis - Méditerranée , LOV - Laboratoire d'océanographie de Villefranche
Abstract : Architectural properties of a fruit, such as its shape, vascular patterns, and skin morphology, play a significant role in determining the distributions of water, carbohydrates, and nutrients inside the fruit. Understanding the impact of these properties on fruit quality is difficult because they develop over time and are highly dependent on both genetic and environmental controls. We present a 3D functional-structural fruit model that can be used to investigate effects of the principle architectural properties on fruit quality. We use a three step modeling pipeline in the OpenAlea platform: (1) creating a 3D volumetric mesh representation of the internal and external fruit structure, (2) generating a complex network of vasculature that is embedded within this mesh, and (3) integrating aspects of the fruit's function, such as water and dry matter transport, with the fruit's structure. We restrict our approach to the phase where fruit growth is mostly due to cell expansion and the fruit has already differentiated into different tissue types. We show how fruit shape affects vascular patterns and, as a consequence, the distribution of sugar/water in tomato fruit. Furthermore, we show that strong interaction between tomato fruit shape and vessel density induces, independently of size, an important and contrasted gradient of water supply from the pedicel to the blossom end of the fruit. We also demonstrate how skin morphology related to microcracking distribution affects the distribution of water and sugars inside nectarine fruit. Our results show that such a generic model permits detailed studies of various, unexplored architectural features affecting fruit quality development.
Document type :
Journal articles
Complete list of metadatas

Cited literature [58 references]  Display  Hide  Download

https://hal.inria.fr/hal-01400062
Contributor : Christophe Godin <>
Submitted on : Monday, November 21, 2016 - 1:41:49 PM
Last modification on : Saturday, May 25, 2019 - 1:43:11 AM

File

Cieslak-fpls-2016-07-01739.pdf
Publication funded by an institution

Identifiers

Citation

Mikolaj Cieslak, Ibrahim Cheddadi, Frédéric Boudon, Valentina Baldazzi, Michel Génard, et al.. Integrating Physiology and Architecture in Models of Fruit Expansion. Frontiers in Plant Science, Frontiers, 2016, 7, pp.19. ⟨10.3389/fpls.2016.01739⟩. ⟨hal-01400062⟩

Share

Metrics

Record views

515

Files downloads

196