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Coupling water fluxes with cell wall mechanics in a multicellular model of plant development
The growth of plant organs is a complex process powered by osmosis that attracts water inside the cells; this influx induces simultaneously an elastic extension of the walls and pressure in the cells, called turgor pressure; above a threshold, the walls yield and the cells grow. Based on Lockhart’s...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6605655/ https://www.ncbi.nlm.nih.gov/pubmed/31220080 http://dx.doi.org/10.1371/journal.pcbi.1007121 |
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author | Cheddadi, Ibrahim Génard, Michel Bertin, Nadia Godin, Christophe |
author_facet | Cheddadi, Ibrahim Génard, Michel Bertin, Nadia Godin, Christophe |
author_sort | Cheddadi, Ibrahim |
collection | PubMed |
description | The growth of plant organs is a complex process powered by osmosis that attracts water inside the cells; this influx induces simultaneously an elastic extension of the walls and pressure in the cells, called turgor pressure; above a threshold, the walls yield and the cells grow. Based on Lockhart’s seminal work, various models of plant morphogenesis have been proposed, either for single cells, or focusing on the wall mechanical properties. However, the synergistic coupling of fluxes and wall mechanics has not yet been fully addressed in a multicellular model. This work lays the foundations of such a model, by simplifying as much as possible each process and putting emphasis on the coupling itself. Its emergent properties are rich and can help to understand plant morphogenesis. In particular, we show that the model can display a new type of lateral inhibitory mechanism that amplifies growth heterogeneities due e.g to cell wall loosening. |
format | Online Article Text |
id | pubmed-6605655 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-66056552019-07-12 Coupling water fluxes with cell wall mechanics in a multicellular model of plant development Cheddadi, Ibrahim Génard, Michel Bertin, Nadia Godin, Christophe PLoS Comput Biol Research Article The growth of plant organs is a complex process powered by osmosis that attracts water inside the cells; this influx induces simultaneously an elastic extension of the walls and pressure in the cells, called turgor pressure; above a threshold, the walls yield and the cells grow. Based on Lockhart’s seminal work, various models of plant morphogenesis have been proposed, either for single cells, or focusing on the wall mechanical properties. However, the synergistic coupling of fluxes and wall mechanics has not yet been fully addressed in a multicellular model. This work lays the foundations of such a model, by simplifying as much as possible each process and putting emphasis on the coupling itself. Its emergent properties are rich and can help to understand plant morphogenesis. In particular, we show that the model can display a new type of lateral inhibitory mechanism that amplifies growth heterogeneities due e.g to cell wall loosening. Public Library of Science 2019-06-20 /pmc/articles/PMC6605655/ /pubmed/31220080 http://dx.doi.org/10.1371/journal.pcbi.1007121 Text en © 2019 Cheddadi et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Cheddadi, Ibrahim Génard, Michel Bertin, Nadia Godin, Christophe Coupling water fluxes with cell wall mechanics in a multicellular model of plant development |
title | Coupling water fluxes with cell wall mechanics in a multicellular model of plant development |
title_full | Coupling water fluxes with cell wall mechanics in a multicellular model of plant development |
title_fullStr | Coupling water fluxes with cell wall mechanics in a multicellular model of plant development |
title_full_unstemmed | Coupling water fluxes with cell wall mechanics in a multicellular model of plant development |
title_short | Coupling water fluxes with cell wall mechanics in a multicellular model of plant development |
title_sort | coupling water fluxes with cell wall mechanics in a multicellular model of plant development |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6605655/ https://www.ncbi.nlm.nih.gov/pubmed/31220080 http://dx.doi.org/10.1371/journal.pcbi.1007121 |
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