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Asymmetric water transport in dense leaf cuticles and cuticle-inspired compositionally graded membranes

Most of the aerial organs of vascular plants are covered by a protective layer known as the cuticle, the main purpose of which is to limit transpirational water loss. Cuticles consist of an amphiphilic polyester matrix, polar polysaccharides that extend from the underlying epidermal cell wall and be...

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Autores principales: Kamtsikakis, Aristotelis, Baales, Johanna, Zeisler-Diehl, Viktoria V., Vanhecke, Dimitri, Zoppe, Justin O., Schreiber, Lukas, Weder, Christoph
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7904774/
https://www.ncbi.nlm.nih.gov/pubmed/33627645
http://dx.doi.org/10.1038/s41467-021-21500-0
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author Kamtsikakis, Aristotelis
Baales, Johanna
Zeisler-Diehl, Viktoria V.
Vanhecke, Dimitri
Zoppe, Justin O.
Schreiber, Lukas
Weder, Christoph
author_facet Kamtsikakis, Aristotelis
Baales, Johanna
Zeisler-Diehl, Viktoria V.
Vanhecke, Dimitri
Zoppe, Justin O.
Schreiber, Lukas
Weder, Christoph
author_sort Kamtsikakis, Aristotelis
collection PubMed
description Most of the aerial organs of vascular plants are covered by a protective layer known as the cuticle, the main purpose of which is to limit transpirational water loss. Cuticles consist of an amphiphilic polyester matrix, polar polysaccharides that extend from the underlying epidermal cell wall and become less prominent towards the exterior, and hydrophobic waxes that dominate the surface. Here we report that the polarity gradient caused by this architecture renders the transport of water through astomatous olive and ivy leaf cuticles directional and that the permeation is regulated by the hydration level of the cutin-rich outer cuticular layer. We further report artificial nanocomposite membranes that are inspired by the cuticles’ compositionally graded architecture and consist of hydrophilic cellulose nanocrystals and a hydrophobic polymer. The structure and composition of these cuticle-inspired membranes can easily be varied and this enables a systematic investigation of the water transport mechanism.
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spelling pubmed-79047742021-03-11 Asymmetric water transport in dense leaf cuticles and cuticle-inspired compositionally graded membranes Kamtsikakis, Aristotelis Baales, Johanna Zeisler-Diehl, Viktoria V. Vanhecke, Dimitri Zoppe, Justin O. Schreiber, Lukas Weder, Christoph Nat Commun Article Most of the aerial organs of vascular plants are covered by a protective layer known as the cuticle, the main purpose of which is to limit transpirational water loss. Cuticles consist of an amphiphilic polyester matrix, polar polysaccharides that extend from the underlying epidermal cell wall and become less prominent towards the exterior, and hydrophobic waxes that dominate the surface. Here we report that the polarity gradient caused by this architecture renders the transport of water through astomatous olive and ivy leaf cuticles directional and that the permeation is regulated by the hydration level of the cutin-rich outer cuticular layer. We further report artificial nanocomposite membranes that are inspired by the cuticles’ compositionally graded architecture and consist of hydrophilic cellulose nanocrystals and a hydrophobic polymer. The structure and composition of these cuticle-inspired membranes can easily be varied and this enables a systematic investigation of the water transport mechanism. Nature Publishing Group UK 2021-02-24 /pmc/articles/PMC7904774/ /pubmed/33627645 http://dx.doi.org/10.1038/s41467-021-21500-0 Text en © The Author(s) 2021 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Kamtsikakis, Aristotelis
Baales, Johanna
Zeisler-Diehl, Viktoria V.
Vanhecke, Dimitri
Zoppe, Justin O.
Schreiber, Lukas
Weder, Christoph
Asymmetric water transport in dense leaf cuticles and cuticle-inspired compositionally graded membranes
title Asymmetric water transport in dense leaf cuticles and cuticle-inspired compositionally graded membranes
title_full Asymmetric water transport in dense leaf cuticles and cuticle-inspired compositionally graded membranes
title_fullStr Asymmetric water transport in dense leaf cuticles and cuticle-inspired compositionally graded membranes
title_full_unstemmed Asymmetric water transport in dense leaf cuticles and cuticle-inspired compositionally graded membranes
title_short Asymmetric water transport in dense leaf cuticles and cuticle-inspired compositionally graded membranes
title_sort asymmetric water transport in dense leaf cuticles and cuticle-inspired compositionally graded membranes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7904774/
https://www.ncbi.nlm.nih.gov/pubmed/33627645
http://dx.doi.org/10.1038/s41467-021-21500-0
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