The mechanism of propagation of variation potentials in wheat leaves

Vodeneev, Vladimir; Orlova, Anna; Morozova, Ekaterina; Orlova, L. A.; Akinchits, Elena; Орлова, О.В.; Sukhov, Vladimir

doi:10.1016/j.jplph.2012.02.013

Cited by 48 publications

(80 citation statements)

References 25 publications

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“…46,47,56 This decrement was about 10% cm ¡1 in pumpkin 46 and wheat. 47 Our theoretical investigation 56 showed that this decrement depends on initial damage intensity. Another interesting property of VP propagation is its transmission through inactive or dead plant parts.…”

Section: Introductionmentioning

confidence: 92%

“…used stressor for inducing VP in a wide variety of plants, including barley, 37 faba bean, 37 soybean, 38 tobacco, 39 sunflower, 40 mimosa, 11,41,42 tomato, 6,43 Bidens pilosa, 44,45 pumpkin, 11,46 wheat, 47 and pea. 26,30,31 Mechanical injury also can induce VP.…”

Section: Introductionmentioning

confidence: 99%

“…49 However, similar mechanical injuries did not induce VP in tomato and wheat. 47,50 Because the presence/absence of VP induction depends on the type of damage, burning has become the preferred inductor of VP.…”

Section: Introductionmentioning

confidence: 99%

“…It has wide-range variable amplitude (» tens mV) and low velocity propagation (» mm s ¡1 ). 46,47 However, VP may also include fast impulse depolarization, a similarity it shares with AP.…”

Section: Introductionmentioning

confidence: 99%

“…11,43,47,51,53 However, VP can occur without 'AP-like' spikes, as well. Only long-term depolarization was observed in pea epicotyls, 49,53,54 wheat 47 and spiderwort. 55 It should be noted that presence and absence of 'AP-like' spikes may be observed in the same plants, i.e., its generation is determined by damage parameters and distance from the zone of stimulation (Fig.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Variation potential in higher plants: Mechanisms of generation and propagation

Vodeneev

Akinchits

Sukhov

2015

Plant Signaling & Behavior

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104

158

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Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Variation potential in higher plants: Mechanisms of generation and propagation

Vodeneev

Akinchits

Sukhov

2015

Plant Signaling & Behavior

Self Cite

104

158

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Simulation of Variation Potential in Higher Plant Cells

Sukhov¹,

Akinchits²,

Katicheva³

et al. 2013

J Membrane Biol

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Variation potential (VP), a propagating electrical signal unique to plants, induces a number of changes in many physiological processes. However, the mechanisms of its generation and propagation are still under discussion and require experimental and theoretical analysis, including VP simulations. The mathematical model for VP formation in plants has been worked out and is based on our previous description of electrophysiological processes in higher plant cells, including plasma membrane ion transport systems (K(+), Cl(-) and Ca(2+) channels, H(+) and Ca(2+)-ATPase, 2H(+)/Cl(-) symporter and H(+)/K(+) antiporter) and their regulation, ion concentration changes in cells and extracellular spaces and buffers in cytoplasm and apoplast. In addition, the VP model takes into account wound substance diffusion, which is described by a one-dimensional diffusion equation, and ligand-gated Ca(2+) channels, which are activated by this substance. The VP model simulates the experimental dependence of amplitude, velocity and shape of VP on the distance from the wounding site and describes the influence of metabolic inhibitors, divalent cation chelators and anion channel blockers on the generation of this electrical reaction, as shown in experiments. Thus, our model favorably simulates VP in plants and theoretically supports the role of wound substance diffusion and Ca(2+) influx in VP development.

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Mathematical Models of Electrical Activity in Plants

Sukhova¹,

Akinchits²,

Sukhov³

2017

J Membrane Biol

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Electrical activity plays an important role in plant life; in particular, electrical responses can participate in the reception of the action of stressors (local electrical responses and oscillations) and signal transduction into unstimulated parts of the plant (action potential, variation potential and system potential). Understanding the mechanisms of electrical responses and subsequent changes in physiological processes and the prediction of plant responses to stressors requires the elaboration of mathematical models of electrical activity in plant organisms. Our review describes approaches to the simulation of plant electrogenesis and summarizes current models of electrical activity in these organisms. It is shown that there are numerous models of the generation of electrical responses, which are based on various descriptions (from modifications of the classical Hodgkin-Huxley model to detailed models, which consider ion transporters, regulatory processes, buffers, etc.). A moderate number of works simulate the propagation of electrical signals using equivalent electrical circuits, systems of excitable elements with local electrical coupling and descriptions of chemical signal propagation. The transmission of signals from a plasma membrane to intracellular compartments (endoplasmic reticulum, vacuole) during the generation of electrical responses is much less modelled. Finally, only a few works simulate plant physiological changes that are connected with electrical responses or investigate the inverse problem: reconstruction of the type and parameters of stimuli through the analysis of electrical responses. In the conclusion of the review, we discuss future perspectives on the simulation of electrical activity in plants.

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The mechanism of propagation of variation potentials in wheat leaves

Cited by 48 publications

References 25 publications

Variation potential in higher plants: Mechanisms of generation and propagation

Variation potential in higher plants: Mechanisms of generation and propagation

Simulation of Variation Potential in Higher Plant Cells

Mathematical Models of Electrical Activity in Plants

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