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1 Bulletin of the Polish Academy of Sciences. Technical Sciences

1 2012

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Configurational forces for growth and shape regulations in morphogenesis

Charletta P., Ambrosi D., Maugin G.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2012

Vol. 60, nr 2

253-257

Morphogenetic theories investigate the mechanisms of creation and regulation of definite biological forms in living organisms. The incredible diversity of shapes and sizes is generated through a barely unknown coordination of biochemical processes occurring at molecular levels. Such a crosstalk not only defines the rules of a robust scheme of matter differentiation, but it also has the capacity to adapt with respect to some variations of the environmental conditions. In this work, we propose a continuum model of growth and mass transport for biological materials during morphogenetic processes. Using the theory of configurational forces, we define the thermomechanical bases for understanding how both the mechanical and the biochemical states can orchestrate growth. The model is successfully applied to describe the morphogen-driven growth control in the imaginal wing disc of Drosophila melanogaster.