Plant electrical signals: A multidisciplinary challenge

Li, Jinhai; Fan, Lifeng; Zhao, Dongjie; Zhou, Qiao; Yao, Jie-Peng; Wang, Zhongyi; Huang, Lan

doi:10.1016/j.jplph.2021.153418

Cited by 34 publications

(30 citation statements)

References 180 publications

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“…A transient inactivation of H + -ATPase in the plasma membrane is considered to be the main mechanism of VP generation [9,10]. AP is a short-term depolarization signal (mainly, seconds and tens of seconds) [4,[11][12][13] which is induced by stimuli with weak and moderate intensity and has a spike shape; its parameters are not dependent on the distance from the irritated zone. The generation of AP is mainly related to transient activation of calcium, anion, and potassium…”

Section: Introductionmentioning

confidence: 99%

Influence of Burning-Induced Electrical Signals on Photosynthesis in Pea Can Be Modified by Soil Water Shortage

Yudina

Gromova

Grinberg

et al. 2022

Plants

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Local damage to plants can induce fast systemic physiological changes through generation and propagation of electrical signals. It is known that electrical signals influence numerous physiological processes including photosynthesis; an increased plant tolerance to actions of stressors is a result of these changes. It is probable that parameters of electrical signals and fast physiological changes induced by these signals can be modified by the long-term actions of stressors; however, this question has been little investigated. Our work was devoted to the investigation of the parameters of burning-induced electrical signals and their influence on photosynthesis under soil water shortage in pea seedlings. We showed that soil water shortage decreased the amplitudes of the burning-induced depolarization signals (variation potential) and the magnitudes of photosynthetic inactivation (decreasing photosynthetic CO2 assimilation and linear electron flow and increasing non-photochemical quenching of the chlorophyll fluorescence and cyclic electron flow around photosystem I) caused by these signals. Moreover, burning-induced hyperpolarization signals (maybe, system potentials) and increased photosynthetic CO2 assimilation could be observed under strong water shortage. It was shown that the electrical signal-induced increase of the leaf stomatal conductance was a potential mechanism for the burning-induced activation of photosynthetic CO2 assimilation under strong water shortage; this mechanism was not crucial for photosynthetic response under control conditions or weak water shortage. Thus, our results show that soil water shortage can strongly modify damage-induced electrical signals and fast physiological responses induced by these signals.

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Section: Introductionmentioning

confidence: 99%

Influence of Burning-Induced Electrical Signals on Photosynthesis in Pea Can Be Modified by Soil Water Shortage

Yudina

Gromova

Grinberg

et al. 2022

Plants

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“…They are a rapid-response signals generated by the instantaneous change in the electric potential gradient on the plasma membrane or alveolar leaf membrane [16]. All plants can produce long-distance electrical signals, which play a role in the communication of diverse tissues and organs, leading to the integration of environmental responses [17,18]. In recent years, the function of electrical signals in GLR-mediated plant resistance to biotic stress has attracted much attention [19].…”

Section: Introductionmentioning

confidence: 99%

The Glutamate Receptor Plays a Role in Defense against Botrytis cinerea through Electrical Signaling in Tomato

et al. 2021

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Plant glutamate-like receptor genes (GLRs) are homologous to mammalian ionotropic glutamate receptors genes (iGluRs). Although GLRs have been implicated in plant defenses to biotic stress, the relationship between GLR-mediated plant immunity against fungal pathogens and electrical signals remains poorly understood. Here, we found that pretreatment with a GLR inhibitor, 6,7-dinitriquinoxaline-2,3-dione (DNQX), increased the susceptibility of tomato plants to the necrotrophic fungal pathogen Botrytis cinerea. Assessment of the glr3.3, glr3.5 and glr3.3/glr3.5 double-mutants upon B. cinerea infection showed that tomato GLR3.3 and GLR3.5 are essential for plant immunity against B. cinerea, wherein GLR3.3 plays the main role. Analysis of the membrane potential changes induced by glutamate (Glu) or glycine (Gly) revealed that amplitude was significantly reduced by knocking out GLR3.3 in tomato. While treatment with Glu or Gly significantly increased immunity against B. cinerea in wild-type plants, this effect was significantly attenuated in glr3.3 mutants. Thus, our data demonstrate that GLR3.3- and GLR3.5-mediated plant immunity against B. cinerea is associated with electrical signals in tomato plants.

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“…In support, mutating clade 3 GLR genes, such as GLR3.1 , GLR3.2 , GLR3.3 , or GLR3.6 , reduces Ca 2+ influx and also the duration of SWPs in local wounded leaves ( Mousavi et al, 2013 ). Propagation of SWP is particularly dependent on two GLR members, GLR3.3 and GLR3.6, which are expressed in the phloem and xylem contact cells, respectively, as SWP propagation in distal leaves is abolished in glr3.3 glr3.6 double mutants ( Mousavi et al, 2013 ; Salvador-Recatala, 2016 ; Toyota et al, 2018 ; Li et al, 2021 ; Moe-Lange et al, 2021 ). Similarly, OsGLR3.4, which is a clade 3 GLR member in rice, also functions in wound-induced SWP propagation ( Yu et al, 2022 ).…”

Section: Long-distance Signals In Response To Woundingmentioning

confidence: 99%

Wound-Induced Systemic Responses and Their Coordination by Electrical Signals

Lee

Seo

2022

Front. Plant Sci.

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Wounding not only induces the expression of damage-responsive genes, but also initiates physiological changes, such as tissue repair, vascular reconnection, and de novo organogenesis in locally damaged tissues. Wound-induced signals also propagate from the site of wounding to distal organs to elicit a systemic response. Electrical signaling, which is the most conserved type of systemic signaling in eukaryotes, is triggered by wound-induced membrane potential changes. Changes in membrane potential spread toward systemic tissues in synergy with chemical and hydraulic signals. Here, we review current knowledge on wound-induced local and systemic responses in plants. We focus particularly on how wound-activated plasma membrane-localized ion channels and pumps propagate systemic information about wounding to induce downstream molecular responses in distal tissues. Finally, we propose future studies that could lead to a better understanding of plant electrical signals and their role in physiological responses to wounding.

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Plant electrical signals: A multidisciplinary challenge

Cited by 34 publications

References 180 publications

Influence of Burning-Induced Electrical Signals on Photosynthesis in Pea Can Be Modified by Soil Water Shortage

Influence of Burning-Induced Electrical Signals on Photosynthesis in Pea Can Be Modified by Soil Water Shortage

The Glutamate Receptor Plays a Role in Defense against Botrytis cinerea through Electrical Signaling in Tomato

Wound-Induced Systemic Responses and Their Coordination by Electrical Signals

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