Effect of Action Potential on Photosynthesis and Proton Transport in the Plant Cell

Krupenina, Natalia A.; Булычев, А. А.

doi:10.1007/978-1-4020-6709-9_280

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…In a previous study it was shown that repeated irritation of trigger hairs temporarily reduced the rate of photosynthesis ( A N ) and the effective photochemical quantum yield of photosystem II (Φ PSII ), and stimulated the rate of respiration ( R D ) in the traps but not in the adjacent laminae ( Pavlovič et al , 2010 ). These findings are not surprising because the inhibitory effect of electrical signals on A N and Φ PSII has also been well documented in non-carnivorous plants ( Koziolek et al , 2003 ; Lautner et al , 2005 ; Bulychev and Kamzolkina, 2006 a , b ; Hlaváčková et al , 2006 ; Kaiser and Grams, 2006 ; Fromm and Lautner, 2007 ; Krupenina and Bulychev, 2007 , 2008 ; Grams et al , 2009 ). However, the exact mechanism underlying the photosynthetic limitation caused by electrical signals is not yet known.…”

Section: Introductionsupporting

confidence: 53%

“…The generation of action potentials and their negative effect on photosynthesis were confined to the trap and were not recorded in the adjacent lamina ( Volkov et al , 2007, 2008 a ; Pavlovič et al , 2010 ). Convincing evidence on the role of the electrical signals in the regulation of photosynthesis has been described by numerous authors ( Herde et al , 1999 ; Koziolek et al , 2003 ; Lautner et al , 2005 ; Bulychev and Kamzolkina, 2006 a , b ; Hlaváčková et al , 2006 ; Kaiser and Grams, 2006 ; Fromm and Lautner, 2007 ; Krupenina and Bulychev, 2007 , 2008 ; Grams et al , 2009 ). In accordance with Krupenina and Bulychev (2007) , the inhibition of Φ PSII and the rapid efflux of CO 2 are longer than the duration of the action potential itself.…”

Section: Discussionmentioning

confidence: 99%

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On the mechanism underlying photosynthetic limitation upon trigger hair irritation in the carnivorous plant Venus flytrap (Dionaea muscipula Ellis)

Pavlovič

Slováková

Pandolfi

et al. 2011

Journal of Experimental Botany

105

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Mechanical stimulation of trigger hairs on the adaxial surface of the trap of Dionaea muscipula leads to the generation of action potentials and to rapid leaf movement. After rapid closure secures the prey, the struggle against the trigger hairs results in generation of further action potentials which inhibit photosynthesis. A detailed analysis of chlorophyll a fluorescence kinetics and gas exchange measurements in response to generation of action potentials in irritated D. muscipula traps was used to determine the ‘site effect’ of the electrical signal-induced inhibition of photosynthesis. Irritation of trigger hairs and subsequent generation of action potentials resulted in a decrease in the effective photochemical quantum yield of photosystem II (ΦPSII) and the rate of net photosynthesis (AN). During the first seconds of irritation, increased excitation pressure in photosystem II (PSII) was the major contributor to the decreased ΦPSII. Within ∼1 min, non-photochemical quenching (NPQ) released the excitation pressure at PSII. Measurements of the fast chlorophyll a fluorescence transient (O-J-I-P) revealed a direct impact of action potentials on the charge separation–recombination reactions in PSII, although the effect seems to be small rather than substantial. All the data presented here indicate that the main primary target of the electrical signal-induced inhibition of photosynthesis is the dark reaction, whereas the inhibition of electron transport is only a consequence of reduced carboxylation efficiency. In addition, the study also provides valuable data confirming the hypothesis that chlorophyll a fluorescence is under electrochemical control.

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Section: Introductionsupporting

confidence: 53%

Section: Discussionmentioning

confidence: 99%

On the mechanism underlying photosynthetic limitation upon trigger hair irritation in the carnivorous plant Venus flytrap (Dionaea muscipula Ellis)

Pavlovič

Slováková

Pandolfi

et al. 2011

Journal of Experimental Botany

105

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Cyclosis-related asymmetry of chloroplast–plasma membrane interactions at the margins of illuminated area in Chara corallina cells

Dodonova

Булычев

2010

Protoplasma

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Cytoplasmic streaming in plant cells is an effective means of intracellular transport. The cycling of ions and metabolites between the cytosol and chloroplasts in illuminated cell regions may alter the cytoplasm composition, while directional flow of this modified cytoplasm may affect the plasma membrane and chloroplast activities in cell regions residing downstream of the illumination area. The impact of local illumination is predicted to be asymmetric because the cell regions located downstream and upstream in the cytoplasmic flow with respect to illumination area would be exposed to flowing cytoplasm whose solute composition was influenced by photosynthetic or dark metabolism. This hypothesis was checked by measuring H(+)-transporting activity of plasmalemma and chlorophyll fluorescence of chloroplasts in shaded regions of Chara corallina internodal cells near opposite borders of illuminated region (white light, beam width 2 mm). Both the apoplastic pH and chlorophyll fluorescence, recorded in shade regions at equal distances from illuminated area, exhibited asymmetric light-on responses depending on orientation of cytoplasmic streaming at the light-shade boundary. In the region where the cytoplasm flowed from illuminated area to the measurement area, the alkaline zone (a zone with high plasma membrane conductance) was formed within 4-min illumination, whereas no alkaline zone was observed in the area where cytoplasm approached the boundary from darkened regions. The results emphasize significance of cyclosis in lateral distribution of a functionally active intermediate capable of affecting the membrane transport across the plasmalemma, the functional activity of chloroplasts, and pattern formation in the plant cell.

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Facilitated permeation of methyl viologen into chloroplasts in situ during electric pulse generation in excitable plant cell membranes

Булычев

Krupenina

2008

Biochem. Moscow Suppl. Ser. A

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Effect of Action Potential on Photosynthesis and Proton Transport in the Plant Cell

Cited by 3 publications

References 6 publications

On the mechanism underlying photosynthetic limitation upon trigger hair irritation in the carnivorous plant Venus flytrap (Dionaea muscipula Ellis)

On the mechanism underlying photosynthetic limitation upon trigger hair irritation in the carnivorous plant Venus flytrap (Dionaea muscipula Ellis)

Cyclosis-related asymmetry of chloroplast–plasma membrane interactions at the margins of illuminated area in Chara corallina cells

Facilitated permeation of methyl viologen into chloroplasts in situ during electric pulse generation in excitable plant cell membranes

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