A coupled mechano-biochemical model for cell polarity guided anisotropic root growth

Marconi M, Gallemi M, Benková E, Wabnik K. 2021. A coupled mechano-biochemical model for cell polarity guided anisotropic root growth. eLife. 10, 72132.

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Journal Article | Published | English

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Author
Marconi, Marco; Gallemi Rovira, MarcalISTA; Benková, EvaISTA ; Wabnik, Krzysztof
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Abstract
Plants develop new organs to adjust their bodies to dynamic changes in the environment. How independent organs achieve anisotropic shapes and polarities is poorly understood. To address this question, we constructed a mechano-biochemical model for Arabidopsis root meristem growth that integrates biologically plausible principles. Computer model simulations demonstrate how differential growth of neighboring tissues results in the initial symmetry-breaking leading to anisotropic root growth. Furthermore, the root growth feeds back on a polar transport network of the growth regulator auxin. Model, predictions are in close agreement with in vivo patterns of anisotropic growth, auxin distribution, and cell polarity, as well as several root phenotypes caused by chemical, mechanical, or genetic perturbations. Our study demonstrates that the combination of tissue mechanics and polar auxin transport organizes anisotropic root growth and cell polarities during organ outgrowth. Therefore, a mobile auxin signal transported through immobile cells drives polarity and growth mechanics to coordinate complex organ development.
Publishing Year
Date Published
2021-11-01
Journal Title
eLife
Acknowledgement
Comunidad de Madrid (2017-T1/BIO-5654) Krzysztof Wabnik ; Ministerio de Ciencia, Innovación y Universidades (PGC2018-093387-A-I00) Krzysztof Wabnik ; Ministerio de Ciencia, Innovación y Universidades (SEV-2016-0672 (2017-2021)) Marco Marconi, Krzysztof Wabnik ; IST Interdisciplinary Project (IC1022IPC03) Marcal Gallemi
Volume
10
Article Number
72132
ISSN
IST-REx-ID

Cite this

Marconi M, Gallemi M, Benková E, Wabnik K. A coupled mechano-biochemical model for cell polarity guided anisotropic root growth. eLife. 2021;10. doi:10.7554/elife.72132
Marconi, M., Gallemi, M., Benková, E., & Wabnik, K. (2021). A coupled mechano-biochemical model for cell polarity guided anisotropic root growth. ELife. eLife Sciences Publications. https://doi.org/10.7554/elife.72132
Marconi, Marco, Marçal Gallemi, Eva Benková, and Krzysztof Wabnik. “A Coupled Mechano-Biochemical Model for Cell Polarity Guided Anisotropic Root Growth.” ELife. eLife Sciences Publications, 2021. https://doi.org/10.7554/elife.72132.
M. Marconi, M. Gallemi, E. Benková, and K. Wabnik, “A coupled mechano-biochemical model for cell polarity guided anisotropic root growth,” eLife, vol. 10. eLife Sciences Publications, 2021.
Marconi M, Gallemi M, Benková E, Wabnik K. 2021. A coupled mechano-biochemical model for cell polarity guided anisotropic root growth. eLife. 10, 72132.
Marconi, Marco, et al. “A Coupled Mechano-Biochemical Model for Cell Polarity Guided Anisotropic Root Growth.” ELife, vol. 10, 72132, eLife Sciences Publications, 2021, doi:10.7554/elife.72132.
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