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Deformable Cell Model and its Application to Growth of PlantMeristem

Published online by Cambridge University Press:  10 July 2013

N. Bessonov
Affiliation:
Institute of Mechanical Engineering Problems, 199178 Saint Petersburg, Russia
V. Mironova
Affiliation:
Institute of cytology and genetics SB RAS, Novosibirsk, Russia
V. Volpert*
Affiliation:
Institut Camille Jordan, UMR 5208 CNRS, University Lyon 1, 69622 Villeurbanne, France Department of Mathematics, Mechanics and Computer Science Southern Federal University, Rostov-on-Don, Russia
*
Corresponding author. E-mail: [email protected]
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Abstract

Deformable cell model is developed to study pattern formation and to simulate planttissue growth. Each cell represents a polygon with a number of vertices connected bysprings. Some cells in the tissue can grow and divide, other cells are differentiated anddo not grow or divide but remain deformable. The model is used to investigate formation ofself-similar structures which reproduce the same cell organization during their growth. Innumerical experiments we observed that self-similar solutions can exist for a ratherprecise choice of plant structure and mechanical properties of cell walls. We test themodel for simulation of apical meristems functioning which represent self-similar cellstructures in plants. At the next stage of modelling, auxin distribution is introduced bymeans of diffusion and polar transport mechanisms. The existence of steady auxindistribution in a growing root is investigated. Single as well as multiple auxin maximahave been observed in model solutions.

Type
Research Article
Copyright
© EDP Sciences, 2013

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