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Mechanical buckling can pattern the light-diffracting cuticle of Hibiscus trionum
Many species have cuticular striations that play a range of roles, from pollinator attraction to surface wettability. In Hibiscus trionum, the striations span multiple cells at the base of the petal to form a pattern that produces a type of iridescence. It is postulated, using theoretical models, th...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Cell Press
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9697994/ https://www.ncbi.nlm.nih.gov/pubmed/34525367 http://dx.doi.org/10.1016/j.celrep.2021.109715 |
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author | Airoldi, Chiara A. Lugo, Carlos A. Wightman, Raymond Glover, Beverley J. Robinson, Sarah |
author_facet | Airoldi, Chiara A. Lugo, Carlos A. Wightman, Raymond Glover, Beverley J. Robinson, Sarah |
author_sort | Airoldi, Chiara A. |
collection | PubMed |
description | Many species have cuticular striations that play a range of roles, from pollinator attraction to surface wettability. In Hibiscus trionum, the striations span multiple cells at the base of the petal to form a pattern that produces a type of iridescence. It is postulated, using theoretical models, that the pattern of striations could result from mechanical instabilities. By combining the application of mechanical stress with high-resolution imaging, we demonstrate that the cuticle buckles to create a striated pattern. Through mechanical modeling and cryo-SEM fractures, we show that the cuticle behaves like a bilayer system with a stiff film on a compliant substrate. The pattern of buckling aligns with the direction of the stress to create a larger-scale pattern. Our findings contribute to the understanding of the formation of tissue-wide patterns in living organisms. |
format | Online Article Text |
id | pubmed-9697994 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Cell Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-96979942022-11-28 Mechanical buckling can pattern the light-diffracting cuticle of Hibiscus trionum Airoldi, Chiara A. Lugo, Carlos A. Wightman, Raymond Glover, Beverley J. Robinson, Sarah Cell Rep Report Many species have cuticular striations that play a range of roles, from pollinator attraction to surface wettability. In Hibiscus trionum, the striations span multiple cells at the base of the petal to form a pattern that produces a type of iridescence. It is postulated, using theoretical models, that the pattern of striations could result from mechanical instabilities. By combining the application of mechanical stress with high-resolution imaging, we demonstrate that the cuticle buckles to create a striated pattern. Through mechanical modeling and cryo-SEM fractures, we show that the cuticle behaves like a bilayer system with a stiff film on a compliant substrate. The pattern of buckling aligns with the direction of the stress to create a larger-scale pattern. Our findings contribute to the understanding of the formation of tissue-wide patterns in living organisms. Cell Press 2021-09-14 /pmc/articles/PMC9697994/ /pubmed/34525367 http://dx.doi.org/10.1016/j.celrep.2021.109715 Text en © 2021 The Authors https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Report Airoldi, Chiara A. Lugo, Carlos A. Wightman, Raymond Glover, Beverley J. Robinson, Sarah Mechanical buckling can pattern the light-diffracting cuticle of Hibiscus trionum |
title | Mechanical buckling can pattern the light-diffracting cuticle of
Hibiscus trionum |
title_full | Mechanical buckling can pattern the light-diffracting cuticle of
Hibiscus trionum |
title_fullStr | Mechanical buckling can pattern the light-diffracting cuticle of
Hibiscus trionum |
title_full_unstemmed | Mechanical buckling can pattern the light-diffracting cuticle of
Hibiscus trionum |
title_short | Mechanical buckling can pattern the light-diffracting cuticle of
Hibiscus trionum |
title_sort | mechanical buckling can pattern the light-diffracting cuticle of
hibiscus trionum |
topic | Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9697994/ https://www.ncbi.nlm.nih.gov/pubmed/34525367 http://dx.doi.org/10.1016/j.celrep.2021.109715 |
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