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.
Ludovic Pauchard 1
CC-BY 4.0
@article{CRMECA_2020__348_6-7_637_0,
author = {Ludovic Pauchard},
title = {Morphogenetic processes: from leaves to~embryos},
journal = {Comptes Rendus. M\'ecanique},
pages = {637--648},
publisher = {Acad\'emie des sciences, Paris},
volume = {348},
number = {6-7},
year = {2020},
doi = {10.5802/crmeca.33},
language = {en},
}
Ludovic Pauchard. Morphogenetic processes: from leaves to embryos. Comptes Rendus. Mécanique, Tribute to an exemplary man: Yves Couder, Volume 348 (2020) no. 6-7, pp. 637-648. doi : 10.5802/crmeca.33. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.5802/crmeca.33/
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