Differential growth and shape formation in plant organs
Morphogenesis is a phenomenon by which a wide variety of functional organs are formed in biological systems. In plants, morphogenesis is primarily driven by differential growth of tissues. Much effort has been devoted to identifying the role of genetic and biomolecular pathways in regulating cell di...
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sg-ntu-dr.10356-861062023-03-04T17:25:57Z Differential growth and shape formation in plant organs Huang, Changjin Wang, Zilu Quinn, David Suresh, Subra Hsia, K. Jimmy School of Chemical and Biomedical Engineering School of Mechanical and Aerospace Engineering Growth Morphogenesis Engineering::Chemical engineering::Biochemical engineering Morphogenesis is a phenomenon by which a wide variety of functional organs are formed in biological systems. In plants, morphogenesis is primarily driven by differential growth of tissues. Much effort has been devoted to identifying the role of genetic and biomolecular pathways in regulating cell division and cell expansion and in influencing shape formation in plant organs. However, general principles dictating how differential growth controls the formation of complex 3D shapes in plant leaves and flower petals remain largely unknown. Through quantitative measurements on live plant organs and detailed finite-element simulations, we show how the morphology of a growing leaf is determined by both the maximum value and the spatial distribution of growth strain. With this understanding, we develop a broad scientific framework for a morphological phase diagram that is capable of rationalizing four configurations commonly found in plant organs: twisting, helical twisting, saddle bending, and edge waving. We demonstrate the robustness of these findings and analyses by recourse to synthetic reproduction of all four configurations using controlled polymerization of a hydrogel. Our study points to potential approaches to innovative geometrical design and actuation in such applications as building architecture, soft robotics and flexible electronics. Published version 2019-09-04T01:36:46Z 2019-12-06T16:16:10Z 2019-09-04T01:36:46Z 2019-12-06T16:16:10Z 2018 Journal Article Huang, C., Wang, Z., Quinn, D., Suresh, S., & Hsia, K. J. (2018). Differential growth and shape formation in plant organs. Proceedings of the National Academy of Sciences, 115(49), 12359-12364. doi:10.1073/pnas.1811296115 0027-8424 https://hdl.handle.net/10356/86106 http://hdl.handle.net/10220/49851 10.1073/pnas.1811296115 en Proceedings of the National Academy of Sciences © 2018 The Author(s). Published by PNAS. This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND). 6 p. application/pdf |
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Growth Morphogenesis Engineering::Chemical engineering::Biochemical engineering Huang, Changjin Wang, Zilu Quinn, David Suresh, Subra Hsia, K. Jimmy Differential growth and shape formation in plant organs |
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Morphogenesis is a phenomenon by which a wide variety of functional organs are formed in biological systems. In plants, morphogenesis is primarily driven by differential growth of tissues. Much effort has been devoted to identifying the role of genetic and biomolecular pathways in regulating cell division and cell expansion and in influencing shape formation in plant organs. However, general principles dictating how differential growth controls the formation of complex 3D shapes in plant leaves and flower petals remain largely unknown. Through quantitative measurements on live plant organs and detailed finite-element simulations, we show how the morphology of a growing leaf is determined by both the maximum value and the spatial distribution of growth strain. With this understanding, we develop a broad scientific framework for a morphological phase diagram that is capable of rationalizing four configurations commonly found in plant organs: twisting, helical twisting, saddle bending, and edge waving. We demonstrate the robustness of these findings and analyses by recourse to synthetic reproduction of all four configurations using controlled polymerization of a hydrogel. Our study points to potential approaches to innovative geometrical design and actuation in such applications as building architecture, soft robotics and flexible electronics. |
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School of Chemical and Biomedical Engineering |
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School of Chemical and Biomedical Engineering Huang, Changjin Wang, Zilu Quinn, David Suresh, Subra Hsia, K. Jimmy |
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Article |
author |
Huang, Changjin Wang, Zilu Quinn, David Suresh, Subra Hsia, K. Jimmy |
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Huang, Changjin |
title |
Differential growth and shape formation in plant organs |
title_short |
Differential growth and shape formation in plant organs |
title_full |
Differential growth and shape formation in plant organs |
title_fullStr |
Differential growth and shape formation in plant organs |
title_full_unstemmed |
Differential growth and shape formation in plant organs |
title_sort |
differential growth and shape formation in plant organs |
publishDate |
2019 |
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https://hdl.handle.net/10356/86106 http://hdl.handle.net/10220/49851 |
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