Complete hunting cycle of Dionaea muscipula: Consecutive steps and their electrical properties

Alexander G. Volkov, Monique Renée Pinnock, Dennell C. Lowe, Ma'Resha S. Gay, Vladislav S. Markin

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The total hunting cycle of the Venus flytrap consists of five stages: 1. Open state → 2. Closed state → 3. Locked state → 4. Constriction and digestion → 5. Semi-open state → 1. Open state. The opening of the trap after digestion consists of two steps: opening of the lobes, and changing of their curvature from concave to convex shape. Uncouplers carbonylcyanide-4-trifluoromethoxyphenyl hydrazone (FCCP) and carbonylcyanide-3-chlorophenylhydrazone (CCCP) inhibit the trap from opening for two weeks and antracene-9-carboxylic acid inhibits the trap from constricting. Different stages of the hunting cycle have different electrical characteristics. The biologically closed electrochemical circuits in the Venus flytrap are analyzed using the charged capacitor method. If the initial voltage applied to the Venus flytrap is 0.5. V or greater, changing the polarity of the electrodes between the midrib and one of the lobes results in a rectification effect and in different kinetics of discharge capacitance. These effects can be caused by the fast transport of ions through ion channels. The electrical properties of the Venus flytrap were investigated and equivalent electrical circuits within the upper leaf were proposed to explain the experimental data.

Original languageEnglish (US)
Pages (from-to)109-120
Number of pages12
JournalJournal of Plant Physiology
Volume168
Issue number2
DOIs
StatePublished - Jan 15 2011

Fingerprint

Droseraceae
Dionaea muscipula
electrical properties
traps
Digestion
digestion
Carbonyl Cyanide p-Trifluoromethoxyphenylhydrazone
electronic circuits
Hydrazones
capacitance
Ion Transport
ion channels
ion transport
carboxylic acids
Carboxylic Acids
Ion Channels
Constriction
electrodes
Electrodes
kinetics

Keywords

  • Charged capacitor method
  • Electrical circuits
  • Electrical signaling
  • Electrophysiology
  • Plant cell electrostimulation
  • Venus flytrap

ASJC Scopus subject areas

  • Plant Science
  • Physiology
  • Agronomy and Crop Science

Cite this

Complete hunting cycle of Dionaea muscipula : Consecutive steps and their electrical properties. / Volkov, Alexander G.; Pinnock, Monique Renée; Lowe, Dennell C.; Gay, Ma'Resha S.; Markin, Vladislav S.

In: Journal of Plant Physiology, Vol. 168, No. 2, 15.01.2011, p. 109-120.

Research output: Contribution to journalArticle

Volkov, Alexander G. ; Pinnock, Monique Renée ; Lowe, Dennell C. ; Gay, Ma'Resha S. ; Markin, Vladislav S. / Complete hunting cycle of Dionaea muscipula : Consecutive steps and their electrical properties. In: Journal of Plant Physiology. 2011 ; Vol. 168, No. 2. pp. 109-120.
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