TY - JOUR
T1 - Molecular electronics in pinnae of Mimosa pudica
AU - Volkov, Alexander G.
AU - Foster, Justin C.
AU - Markin, Vladislav S.
N1 - Funding Information:
This work was supported by the National Science Foundation (grant no. HRD0811507).
PY - 2010/7
Y1 - 2010/7
N2 - 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.
AB - 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.
KW - Charged capacitor method
KW - Electrical circuits
KW - Electrical signaling
KW - Electrophysiology
KW - Mimosa p udica
KW - Plant cell electrostimulation
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U2 - 10.4161/psb.5.7.11569
DO - 10.4161/psb.5.7.11569
M3 - Article
C2 - 20448476
AN - SCOPUS:77956971199
SN - 1559-2316
VL - 5
SP - 826
EP - 831
JO - Plant Signaling and Behavior
JF - Plant Signaling and Behavior
IS - 7
ER -