Molecular electronics in pinnae of Mimosa pudica

Alexander G. Volkov, Justin C. Foster, Vladislav S. Markin

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

Bioelectrochemical circuits operate in all plants including the sensitive plant Mimosa pudica Linn. The activation of biologically closed circuits with voltage gated ion channels can lead to various mechanical, hydrodynamical, physiological, biochemical and biophysical responses. here the biologically closed electrochemical circuit in pinnae of Mimosa pudica is analyzed using the charged capacitor method for electrostimulation at different voltages. also the equivalent electrical scheme of electrical signal transduction inside the plant's pinna is evaluated. These circuits remain linear at small potentials not exceeding 0.5 V. at higher potentials the circuits become strongly non-linear pointing to the opening of ion channels in plant tissues. changing the polarity of electrodes leads to a strong rectification effect and to different kinetics of a capacitor. These effects can be caused by a redistribution of K+, cl, ca2+ and h+ ions through voltage gated ion channels. The electrical properties of Mimosa pudica were investigated and equivalent electrical circuits within the pinnae were proposed to explain the experimental data.

Original languageEnglish (US)
Pages (from-to)826-831
Number of pages6
JournalPlant Signaling and Behavior
Volume5
Issue number7
DOIs
StatePublished - Jul 2010

Keywords

  • Charged capacitor method
  • Electrical circuits
  • Electrical signaling
  • Electrophysiology
  • Mimosa p udica
  • Plant cell electrostimulation

ASJC Scopus subject areas

  • Plant Science

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