Morphogenetic processes: from leaves to embryos

The present manuscript is devoted to two works related to the spontaneous formation of patterns in Nature: venation in leaves and evolution of embryos. Morphogenetic processes and growth-induced instability phenomena are modelled through analogue experiments. The organization of veins in leaves is s...

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Main Author: Pauchard, Ludovic
Format: Article
Language:English
Published: Académie des sciences 2020-11-01
Series:Comptes Rendus. Mécanique
Subjects:
Online Access:https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.5802/crmeca.33/
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author Pauchard, Ludovic
author_facet Pauchard, Ludovic
author_sort Pauchard, Ludovic
collection DOAJ
description The present manuscript is devoted to two works related to the spontaneous formation of patterns in Nature: venation in leaves and evolution of embryos. Morphogenetic processes and growth-induced instability phenomena are modelled through analogue experiments. The organization of veins in leaves is similar to what is expected from growth in a tensorial stress field that governs the formation of fractures, while the change in the shape of embryos is related to the deformation of a shell-like membrane whose properties evolve with time. The approaches resulting from analogue experiments is a way to explore specific properties of the media at a macroscopic scale. Thus the manuscript aims to focus on the analogue experiments, their adaptability to reproduce specific patterns and the relation between both growth-induced instability and mechanical behaviour of the matter.
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spelling doaj.art-34e45c0648e643ca92962cd48f10e84e2023-10-24T14:20:55ZengAcadémie des sciencesComptes Rendus. Mécanique1873-72342020-11-013486-763764810.5802/crmeca.3310.5802/crmeca.33Morphogenetic processes: from leaves to embryosPauchard, Ludovic0Laboratoire FAST, Univ. Paris-Sud, CNRS, Université Paris-Saclay, F-91405 Orsay, FranceThe present manuscript is devoted to two works related to the spontaneous formation of patterns in Nature: venation in leaves and evolution of embryos. Morphogenetic processes and growth-induced instability phenomena are modelled through analogue experiments. The organization of veins in leaves is similar to what is expected from growth in a tensorial stress field that governs the formation of fractures, while the change in the shape of embryos is related to the deformation of a shell-like membrane whose properties evolve with time. The approaches resulting from analogue experiments is a way to explore specific properties of the media at a macroscopic scale. Thus the manuscript aims to focus on the analogue experiments, their adaptability to reproduce specific patterns and the relation between both growth-induced instability and mechanical behaviour of the matter.https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.5802/crmeca.33/MorphologyInstabilityCrackBucklingDrying
spellingShingle Pauchard, Ludovic
Morphogenetic processes: from leaves to embryos
Comptes Rendus. Mécanique
Morphology
Instability
Crack
Buckling
Drying
title Morphogenetic processes: from leaves to embryos
title_full Morphogenetic processes: from leaves to embryos
title_fullStr Morphogenetic processes: from leaves to embryos
title_full_unstemmed Morphogenetic processes: from leaves to embryos
title_short Morphogenetic processes: from leaves to embryos
title_sort morphogenetic processes from leaves to embryos
topic Morphology
Instability
Crack
Buckling
Drying
url https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.5802/crmeca.33/
work_keys_str_mv AT pauchardludovic morphogeneticprocessesfromleavestoembryos