Multiscale integration of environmental stimuli in plant tropism produces complex behaviors

Plant tropism refers to the directed movement of an organ or organism in response to external stimuli. Typically, these stimuli induce hormone transport that triggers cell growth or deformation. In turn, these local cellular changes create mechanical forces on the plant tissue that are balanced by a...

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Main Authors: Moulton, D, Oliveri, H, Goriely, A
Format: Journal article
Language:English
Published: National Academy of Sciences 2020
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author Moulton, D
Oliveri, H
Goriely, A
author_facet Moulton, D
Oliveri, H
Goriely, A
author_sort Moulton, D
collection OXFORD
description Plant tropism refers to the directed movement of an organ or organism in response to external stimuli. Typically, these stimuli induce hormone transport that triggers cell growth or deformation. In turn, these local cellular changes create mechanical forces on the plant tissue that are balanced by an overall deformation of the organ, hence changing its orientation with respect to the stimuli. This complex feedback mechanism takes place in a three-dimensional growing plant with varying stimuli depending on the environment. We model this multiscale process in filamentary organs for an arbitrary stimulus by explicitly linking hormone transport to local tissue deformation leading to the generation of mechanical forces and the deformation of the organ in three dimensions. We show, as examples, that the gravitropic, phototropic, nutational, and thigmotropic dynamic responses can be easily captured by this framework. Further, the integration of evolving stimuli and/or multiple contradictory stimuli can lead to complex behavior such as sun following, canopy escape, and plant twining.
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spelling oxford-uuid:cdb036b7-a4bd-4ea5-8b71-24a6d7e2896f2022-03-27T07:30:24ZMultiscale integration of environmental stimuli in plant tropism produces complex behaviorsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:cdb036b7-a4bd-4ea5-8b71-24a6d7e2896fEnglishSymplectic ElementsNational Academy of Sciences2020Moulton, DOliveri, HGoriely, APlant tropism refers to the directed movement of an organ or organism in response to external stimuli. Typically, these stimuli induce hormone transport that triggers cell growth or deformation. In turn, these local cellular changes create mechanical forces on the plant tissue that are balanced by an overall deformation of the organ, hence changing its orientation with respect to the stimuli. This complex feedback mechanism takes place in a three-dimensional growing plant with varying stimuli depending on the environment. We model this multiscale process in filamentary organs for an arbitrary stimulus by explicitly linking hormone transport to local tissue deformation leading to the generation of mechanical forces and the deformation of the organ in three dimensions. We show, as examples, that the gravitropic, phototropic, nutational, and thigmotropic dynamic responses can be easily captured by this framework. Further, the integration of evolving stimuli and/or multiple contradictory stimuli can lead to complex behavior such as sun following, canopy escape, and plant twining.
spellingShingle Moulton, D
Oliveri, H
Goriely, A
Multiscale integration of environmental stimuli in plant tropism produces complex behaviors
title Multiscale integration of environmental stimuli in plant tropism produces complex behaviors
title_full Multiscale integration of environmental stimuli in plant tropism produces complex behaviors
title_fullStr Multiscale integration of environmental stimuli in plant tropism produces complex behaviors
title_full_unstemmed Multiscale integration of environmental stimuli in plant tropism produces complex behaviors
title_short Multiscale integration of environmental stimuli in plant tropism produces complex behaviors
title_sort multiscale integration of environmental stimuli in plant tropism produces complex behaviors
work_keys_str_mv AT moultond multiscaleintegrationofenvironmentalstimuliinplanttropismproducescomplexbehaviors
AT oliverih multiscaleintegrationofenvironmentalstimuliinplanttropismproducescomplexbehaviors
AT gorielya multiscaleintegrationofenvironmentalstimuliinplanttropismproducescomplexbehaviors