title: Synchrony in reaction-diffusion models of morphogenesis: applications to curvature-dependent proliferation and zero-diffusion front waves.
abstract: The paper presents the classical age-dependent approach of the morphogenesis in the framework of the von Foerster equation, in which we introduce a new constraint and study a new feature: (i) the new constraint concerns cell proliferation along the contour lines of the cell density, depending on the local curvature such as it favours the amplification of the concavities (like in the gastrulation process) and (ii) the new feature consists of considering, on the cell density surface, a remarkable line (the null mean Gaussian curvature line), on which the normal diffusion vanishes, favouring local coexistence of diffusing morphogens, metabolites or cells, and hence the auto-assemblages of these entities. Two applications to biological multi-agents systems are studied, gastrulation and feather morphogenesis.
authors.affiliation: Institut National des Sciences Appliquées Rouen, Laboratoire de Mathématiques de l'INSA EA 3226, Place Emile Blondel BP 08, 76131 Mont-Saint-Aignan, France.
authors.forename: Lamia
authors.initials: L
authors.lastname: Abbas
authors.forename: Jacques
authors.initials: J
authors.lastname: Demongeot
authors.forename: Nicolas
authors.initials: N
authors.lastname: Glade
mesh_terms: D000818:Animals; D001717:Birds; D002453:Cell Cycle / Q000502:physiology*; D005241:Feathers / Q000502:physiology; D054262:Gastrulation / Q000502:physiology; D008954:Models, Biological; D009024:Morphogenesis / Q000502:physiology*; D013816:Thermodynamics