Effect of a Single Excitation Stimulus on Photosynthetic Activity and Light-dependent pH Banding in Chara Cells

Булычев, А. А.; Kamzolkina, N. A.; Luengviriya, J.; Rubin, A. B.; Müller, Stefan

doi:10.1007/s00232-004-0716-5

Cited by 55 publications

(23 citation statements)

References 41 publications

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“…A number of publications have demonstrated the influence of electrical signals on photosynthesis (Fromm and Eschrich 1993;Fromm and Fei 1998;Koziolek et al 2003;Bulychev et al 2004;Lautner et al 2005;Kaiser and Grams 2006;Hlaváčková et al 2006;Fromm and Lautner 2007;Grams et al 2007Grams et al , 2009Krupenina and Bulychev 2007;Krupenina et al 2008;Sukhov et al 2008a, b;Pavlovič et al 2011); however, these results are contradictory. In particular, electrical signals can induce rapid (*minutes) reduction in the CO 2 assimilation rate (Koziolek et al 2003;Lautner et al 2005;Grams et al 2009), a decrease in quantum yields of photosystem I (PSI) (Grams et al 2009) and photosystem II (PSII) (Koziolek et al 2003;Lautner et al 2005;Grams et al 2009), an increase in photochemical fluorescence quenching and a lowering in non-photochemical quenching (Pavlovič et al 2011).…”

Section: Introductionmentioning

confidence: 52%

“…The ability of a local stimulus to induce electrical signal propagation and subsequent photosynthesis changes has been demonstrated in a number of works (Fromm and Eschrich 1993;Fromm and Fei 1998;Koziolek et al 2003;Bulychev et al 2004;Lautner et al 2005;Kaiser and Grams 2006;Hlaváčková et al 2006;Grams et al 2007Grams et al , 2009Krupenina and Bulychev 2007;Krupenina et al 2008;Sukhov et al 2008a, b;Pavlovič et al 2011). Fig.…”

Section: Discussionmentioning

confidence: 99%

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Analysis of the photosynthetic response induced by variation potential in geranium

Sukhov

Orlova

Mysyagin

et al. 2011

Planta

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Electrical signals (action and variation potentials) caused by environmental stimuli induce a number of physiological responses in plants including changes in photosynthesis; however, mechanisms of these changes remain unclear. We investigated the influence of the variation potential on photosynthesis in geranium (Pelargonium zonale) under different conditions (control, low external CO₂ concentration, and actinic light absence). The variation potential caused by lamina burning induced a reduction in photosynthesis (decreases in effective quantum yields of photosystem I and II, CO₂ assimilation rate, and stomatal conductance) in unstimulated leaves under control conditions. Changes in the majority of light-stage parameters (photosystem I and II quantum yields, coefficients of photochemical and non-photochemical quenching, quantum yield of non-photochemical energy dissipation in photosystem I due to donor-side limitation) were correlated with a decrease in CO₂ assimilation rate. The changes were similar to those caused by lowering [CO₂]; their magnitudes decreased both under low external CO₂ concentration and without actinic light. These results support the hypothesis that Calvin cycle inactivation plays a key role in photosynthetic response induced by electrical signals. However, a decrease in electron transport through the PSI acceptor side also induced by variation potential was not correlated with a decrease in the CO₂ assimilation rate and did not depend on the external CO₂ concentration or actinic light intensity. Thus, we suggest that there are two different mechanisms of light-stage inactivation induced by the variation potential in geranium: one strongly dependent on dark-stage inactivation and one weakly dependent on dark-stage inactivation.

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Section: Introductionmentioning

confidence: 52%

Section: Discussionmentioning

confidence: 99%

Analysis of the photosynthetic response induced by variation potential in geranium

Sukhov

Orlova

Mysyagin

et al. 2011

Planta

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“…Earlier attempts with characean algae to observe effects of cell excitation on chloroplast fluorescence [9] failed, as no allowance was made for heterogeneous distribution of photosynthetic activity, revealed later [21]. Recent studies with Chara corallina show that the quantum efficiency of PSII electron flow diminishes and nonphotochemical quenching appears after electrostimulated AP [22], like it occurs upon photogeneration of AP in Anthoceros. Apparently, MP changes at the plasma membrane not only depend on events occurring in chloroplasts but also modulate through ionic mecha-nisms the light energy transduction in thylakoid membranes.…”

Section: Discussionmentioning

confidence: 99%

Light-Triggered Action Potentials and Changes in Quantum Efficiency of Photosystem II in Anthoceros Cells

Pikulenko

Булычев

2005

Russ J Plant Physiol

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Capillary microelectrodes and pulse amplitude-modulated microfluorometry were used to study light-triggered changes in cell membrane potential, chlorophyll fluorescence, and photochemical yield of PSII in chloroplasts of a hornwort Anthoceros sp. The action potential was generated by illuminating the plant sample for a few seconds. It was accompanied by a reversible decrease in quantum efficiency of PSII and by nonphotochemical quenching of fluorescence that continued as long as 10 min after the light stimulus. The presence of ammonium ions (2 mM) enhanced the amplitude and prolonged the duration of dark changes of fluorescence parameters in accordance with the reported increase in duration and amplitude of the light-triggered action potential in the presence of NH 4 + . A rapid retardation of PSII activity within the first seconds of illumination was also evident from absorbance changes at 810 nm reflecting the redox conversions of chlorophyll P700. The PSII-dependent stage of reduction in the induction curves of P700 absorbance was strongly suppressed, and the amplitudes of signals induced by white and far-red light (717 nm) differed insignificantly. It is concluded that a short-term irradiation triggers the generation of ∆ pH at the thylakoid membranes, which is accompanied by inhibition of the plasma membrane H + pump and by reversible inactivation of PSII due to increased thermal dissipation of chlorophyll excitations.Abbreviations : AP-action potential; F 0 , F v , and F m -the yields of background, variable, and maximum fluorescence, respectively; MP-membrane potential; PSI and PSII-photosystems I and II; qN -coefficient of nonphotochemical quenching.

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“…The absorption of excess light increases the fraction of pigment excitations dissipated as heat [1]. The AP propagation temporally inhibits photosynthesis in "excitable" plants and in plants lacking movement responses [4][5][6][7]. The perception of mechanical treatments, chemical agents, cooling, and heating in plants is often associated with generation of propagating electric signals, action potentials (AP) [3].…”

Section: Introductionmentioning

confidence: 99%

10.1007/s11183-008-2003-2

2010

CrossRef Listing of Deleted DOIs

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Effects of inhibitors and cofactors of cyclic and noncyclic electron transport on nonphotochemical quenching of chlorophyll fluorescence induced by action potential (AP) was investigated in Chara corallina cells. Under control conditions, energy-dependent quenching (q E ) develops upon the increase in photosynthetically active radiation (PAR); it also arises and reversibly disappears after AP generation at moderate irradiances. The treatment of cells with diuron (DCMU) completely eliminated q E established at high irradiances and q E induced by AP generation. The activation of cyclic electron transport by DCMU in combination with phenazine methosulfate restored q E at high irradiances but did not restore q E imposed after AP generation. The presence in the medium of a PSI acceptor, methyl viologen at concentrations from 100 µ M to 0.83 mM had no effect on fluorescence and photosynthetic activity of chloroplasts until the application of a single excitatory stimulus. Once a single AP was generated in the presence of methyl viologen, it induced irreversible q E at a wide range of irradiances, which indicates the AP-triggered redirection of a part of electron flow from the main pathway to the artificial acceptor. It is concluded that AP generation opens access for permeation of a divalent cation methyl viologen from the medium to the chloroplast stroma across two membrane barriers, the plasmalemma and the inner membrane of the chloroplast envelope.

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Effect of a Single Excitation Stimulus on Photosynthetic Activity and Light-dependent pH Banding in Chara Cells

Cited by 55 publications

References 41 publications

Analysis of the photosynthetic response induced by variation potential in geranium

Analysis of the photosynthetic response induced by variation potential in geranium

Light-Triggered Action Potentials and Changes in Quantum Efficiency of Photosystem II in Anthoceros Cells

10.1007/s11183-008-2003-2

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