How the Venus Flytrap Snaps

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How the Venus Flytrap Snaps

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Title: How the Venus Flytrap Snaps
Author: Forterre, Yoel; Skotheim, Jan M.; Dumais, Jacques; Mahadevan, Lakshminarayanan

Note: Order does not necessarily reflect citation order of authors.

Citation: Forterre, Yoel, Jan M. Skotheim, Jacques Dumais, and Lakshminarayanan Mahadevan. 2005. How the Venus flytrap snaps. Nature 433(7024): 421-425.
Access Status: At the direction of the depositing author this work is not currently accessible through DASH.
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Abstract: The rapid closure of the Venus flytrap (Dionaea muscipula) leaf in about 100 ms is one of the fastest movements in the plant kingdom. This led Darwin to describe the plant as "one of the most wonderful in the world". The trap closure is initiated by the mechanical stimulation of trigger hairs. Previous studies have focused on the biochemical response of the trigger hairs to stimuli and quantified the propagation of action potentials in the leaves. Here we complement these studies by considering the post-stimulation mechanical aspects of Venus flytrap closure. Using high-speed video imaging, non-invasive microscopy techniques and a simple theoretical model, we show that the fast closure of the trap results from a snap-buckling instability, the onset of which is controlled actively by the plant. Our study identifies an ingenious solution to scaling up movements in non-muscular engines and provides a general framework for understanding nastic motion in plants.
Published Version: doi:10.1038/nature03185
Other Sources: http://www.seas.harvard.edu/softmat/downloads/2005-07.pdf
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:9967608

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  • FAS Scholarly Articles [7594]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University
 
 

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