scholarly journals Triggering a false alarm: wounding mimics prey capture in the carnivorous Venus flytrap (Dionaea muscipula )

2017 ◽  
Vol 216 (3) ◽  
pp. 927-938 ◽  
Author(s):  
Andrej Pavlovič ◽  
Jana Jakšová ◽  
Ondřej Novák
Keyword(s):  
False Alarm ◽  
Prey Capture ◽  
Venus Flytrap ◽  
Dionaea Muscipula

Prey capture in the Venus flytrap: collection or selection?

Botany ◽  
2009 ◽  
Vol 87 (10) ◽  
pp. 1007-1010 ◽  
Author(s):  
John J. Hutchens, ◽  
James O. Luken
Keyword(s):  
Resource Availability ◽  
Charles Darwin ◽  
Prey Capture ◽  
Large Prey ◽  
Venus Flytrap ◽  
Dionaea Muscipula ◽  
Plant Allocation ◽  
Trap Size ◽  
Prey Length ◽  
Best Fit

Charles Darwin first proposed that the Venus flytrap ( Dionaea muscipula Ellis) functions optimally by capturing and digesting large prey, the small prey escaping through openings at the trap margins. This hypothesis, although intuitively sound in the context of trap mechanics or plant allocation theory, has not been tested adequately with populations of plants growing in the field. Here, with traps collected in the endemic habitat over 9 months, we show that prey capture in the Venus flytrap is opportunistic rather than selective. While there was no effect of trap size on prey capture success, there was a significant but weak positive relationship between trap length and prey length. Prey sizes were well below the theoretical maximum holding capacities of traps and relatively small insects were represented across the range of trap sizes. Our results show that prey capture was not biased toward large invertebrates. Instead, we suggest that nonselective prey capture across the observed range of trap sizes is the best-fit explanation of trap function in the context of relatively limited ability to change allocation in response to sudden increases in resource availability.

scholarly journals Action potentials induce biomagnetic fields in carnivorous Venus flytrap plants

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Anne Fabricant ◽  
Geoffrey Z. Iwata ◽  
Sönke Scherzer ◽  
Lykourgos Bougas ◽  
Katharina Rolfs ◽  
...  
Keyword(s):  
Electrical Activity ◽  
Action Potentials ◽  
Plant Stress ◽  
Optically Pumped ◽  
Long Distance ◽  
Noninvasive Diagnostics ◽  
Venus Flytrap ◽  
Dionaea Muscipula ◽  
Cell Arrays ◽  
Electrical Signaling

AbstractUpon stimulation, plants elicit electrical signals that can travel within a cellular network analogous to the animal nervous system. It is well-known that in the human brain, voltage changes in certain regions result from concerted electrical activity which, in the form of action potentials (APs), travels within nerve-cell arrays. Electro- and magnetophysiological techniques like electroencephalography, magnetoencephalography, and magnetic resonance imaging are used to record this activity and to diagnose disorders. Here we demonstrate that APs in a multicellular plant system produce measurable magnetic fields. Using atomic optically pumped magnetometers, biomagnetism associated with electrical activity in the carnivorous Venus flytrap, Dionaea muscipula, was recorded. Action potentials were induced by heat stimulation and detected both electrically and magnetically. Furthermore, the thermal properties of ion channels underlying the AP were studied. Beyond proof of principle, our findings pave the way to understanding the molecular basis of biomagnetism in living plants. In the future, magnetometry may be used to study long-distance electrical signaling in a variety of plant species, and to develop noninvasive diagnostics of plant stress and disease.

Action Potential and Contraction of Dionaea muscipula (Venus Flytrap)

Science ◽  
1961 ◽  
Vol 133 (3456) ◽  
pp. 878-879 ◽  
Author(s):  
J. R. Di Palma ◽  
R. Mohl ◽  
W. Best
Keyword(s):  
Action Potential ◽  
Venus Flytrap ◽  
Dionaea Muscipula

Dynamics of amino acid redistribution in the carnivorous Venus flytrap (Dionaea muscipula ) after digestion of 13 C/15 N-labelled prey

Plant Biology ◽  
2017 ◽  
Vol 19 (6) ◽  
pp. 886-895 ◽  
Author(s):  
J. Kruse ◽  
P. Gao ◽  
M. Eibelmeier ◽  
S. Alfarraj ◽  
H. Rennenberg
Keyword(s):  
Amino Acid ◽  
Venus Flytrap ◽  
Dionaea Muscipula

scholarly journals How the carnivorous waterwheel plant ( Aldrovanda vesiculosa ) snaps

2018 ◽  
Vol 285 (1878) ◽  
pp. 20180012 ◽  
Author(s):  
Anna S. Westermeier ◽  
Renate Sachse ◽  
Simon Poppinga ◽  
Philipp Vögele ◽  
Lubomir Adamec ◽  
...  
Keyword(s):  
Computer Simulations ◽  
Compliant Mechanisms ◽  
Venus Flytrap ◽  
Dionaea Muscipula ◽  
Mechanical Modelling ◽  
Biomimetic Approach ◽  
Fast Motion

The fast motion of the snap-traps of the terrestrial Venus flytrap ( Dionaea muscipula ) have been intensively studied, in contrast to the tenfold faster underwater snap-traps of its phylogenetic sister, the waterwheel plant ( Aldrovanda vesiculosa ). Based on biomechanical and functional–morphological analyses and on a reverse biomimetic approach via mechanical modelling and computer simulations, we identify a combination of hydraulic turgor change and the release of prestress stored in the trap as essential for actuation. Our study is the first to identify and analyse in detail the motion principle of Aldrovanda , which not only leads to a deepened understanding of fast plant movements in general, but also contributes to the question of how snap-traps may have evolved and also allows for the development of novel biomimetic compliant mechanisms.

On the mechanism of trap closure of Venus flytrap (Dionaea muscipula Ellis)

Planta ◽  
1989 ◽  
Vol 179 (1) ◽  
pp. 32-42 ◽  
Author(s):  
Dieter Hodick ◽  
Andreas Sievers
Keyword(s):  
Venus Flytrap ◽  
Dionaea Muscipula

scholarly journals Abundance of Cysteine Endopeptidase Dionain in Digestive Fluid of Venus Flytrap (Dionaea muscipula Ellis) Is Regulated by Different Stimuli from Prey through Jasmonates

PLoS ONE ◽  
2014 ◽  
Vol 9 (8) ◽  
pp. e104424 ◽  
Author(s):  
Michaela Libiaková ◽  
Kristýna Floková ◽  
Ondřej Novák ◽  
L'udmila Slováková ◽  
Andrej Pavlovič
Keyword(s):  
Cysteine Endopeptidase ◽  
Venus Flytrap ◽  
Dionaea Muscipula ◽  
Digestive Fluid
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