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Smooth or with a snap! Biomechanics of trap reopening in the Venus flytrap (Dionaea muscipula)

Durak, Grażyna M. ; Thierer, Rebecca ; Sachse, Renate ; Manfred, Bischoff ; Speck, Thomas ; Poppinga, Simon (2022)
Smooth or with a snap! Biomechanics of trap reopening in the Venus flytrap (Dionaea muscipula).
In: Advanced Science, 9 (22)
doi: 10.1002/advs.202201362
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

Fast snapping in the carnivorous Venus flytrap (Dionaea muscipula) involves trap lobe bending and abrupt curvature inversion (snap-buckling), but how do these traps reopen? Here, the trap reopening mechanics in two different D. muscipula clones, producing normal-sized (N traps, max. ≈3 cm in length) and large traps (L traps, max. ≈4.5 cm in length) are investigated. Time-lapse experiments reveal that both N and L traps can reopen by smooth and continuous outward lobe bending, but only L traps can undergo smooth bending followed by a much faster snap-through of the lobes. Additionally, L traps can reopen asynchronously, with one of the lobes moving before the other. This study challenges the current consensus on trap reopening, which describes it as a slow, smooth process driven by hydraulics and cell growth and/or expansion. Based on the results gained via three-dimensional digital image correlation (3D-DIC), morphological and mechanical investigations, the differences in trap reopening are proposed to stem from a combination of size and slenderness of individual traps. This study elucidates trap reopening processes in the (in)famous Dionaea snap traps – unique shape-shifting structures of great interest for plant biomechanics, functional morphology, and applications in biomimetics, i.e., soft robotics.

Typ des Eintrags: Artikel
Erschienen: 2022
Autor(en): Durak, Grażyna M. ; Thierer, Rebecca ; Sachse, Renate ; Manfred, Bischoff ; Speck, Thomas ; Poppinga, Simon
Art des Eintrags: Bibliographie
Titel: Smooth or with a snap! Biomechanics of trap reopening in the Venus flytrap (Dionaea muscipula)
Sprache: Englisch
Publikationsjahr: 20 September 2022
Verlag: Wiley-VCH
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Advanced Science
Jahrgang/Volume einer Zeitschrift: 9
(Heft-)Nummer: 22
DOI: 10.1002/advs.202201362
URL / URN: https://onlinelibrary.wiley.com/doi/10.1002/advs.202201362
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Kurzbeschreibung (Abstract):

Fast snapping in the carnivorous Venus flytrap (Dionaea muscipula) involves trap lobe bending and abrupt curvature inversion (snap-buckling), but how do these traps reopen? Here, the trap reopening mechanics in two different D. muscipula clones, producing normal-sized (N traps, max. ≈3 cm in length) and large traps (L traps, max. ≈4.5 cm in length) are investigated. Time-lapse experiments reveal that both N and L traps can reopen by smooth and continuous outward lobe bending, but only L traps can undergo smooth bending followed by a much faster snap-through of the lobes. Additionally, L traps can reopen asynchronously, with one of the lobes moving before the other. This study challenges the current consensus on trap reopening, which describes it as a slow, smooth process driven by hydraulics and cell growth and/or expansion. Based on the results gained via three-dimensional digital image correlation (3D-DIC), morphological and mechanical investigations, the differences in trap reopening are proposed to stem from a combination of size and slenderness of individual traps. This study elucidates trap reopening processes in the (in)famous Dionaea snap traps – unique shape-shifting structures of great interest for plant biomechanics, functional morphology, and applications in biomimetics, i.e., soft robotics.

Freie Schlagworte: biomechanics, carnivorous plants, mechanical instability problems, plantmovement, snap-buckling, snap-traps
Zusätzliche Informationen:

Artikel-ID: 2201362

Fachbereich(e)/-gebiet(e): 10 Fachbereich Biologie
10 Fachbereich Biologie > Botanischer Garten
Hinterlegungsdatum: 21 Sep 2022 05:19
Letzte Änderung: 03 Jul 2024 02:58
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