The Kinematics of Plant Nutation Reveals a Simple Relation between Curvature and the Orientation of Differential Growth

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The Kinematics of Plant Nutation Reveals a Simple Relation between Curvature and the Orientation of Differential Growth

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Title: The Kinematics of Plant Nutation Reveals a Simple Relation between Curvature and the Orientation of Differential Growth
Author: Bastien, Renaud; Meroz, Yasmine

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Citation: Bastien, Renaud, and Yasmine Meroz. 2016. “The Kinematics of Plant Nutation Reveals a Simple Relation between Curvature and the Orientation of Differential Growth.” PLoS Computational Biology 12 (12): e1005238. doi:10.1371/journal.pcbi.1005238. http://dx.doi.org/10.1371/journal.pcbi.1005238.
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Abstract: Nutation is an oscillatory movement that plants display during their development. Despite its ubiquity among plants movements, the relation between the observed movement and the underlying biological mechanisms remains unclear. Here we show that the kinematics of the full organ in 3D give a simple picture of plant nutation, where the orientation of the curvature along the main axis of the organ aligns with the direction of maximal differential growth. Within this framework we reexamine the validity of widely used experimental measurements of the apical tip as markers of growth dynamics. We show that though this relation is correct under certain conditions, it does not generally hold, and is not sufficient to uncover the specific role of each mechanism. As an example we re-interpret previously measured experimental observations using our model.
Published Version: doi:10.1371/journal.pcbi.1005238
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5140061/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:29739156
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