1. Morphogenetic processes: from leaves to embryos.
- Author
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Pauchard, Ludovic
- Subjects
- *
EMBRYOS , *VEINS , *DEFORMATIONS (Mechanics) , *MANUSCRIPTS , *GASTRULATION - Abstract
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. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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