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Marina A. Grinberg
Department of Biophysics, National Research Lobachevsky State University of Nizhny Novgorod, 23 Gagarin Avenue, Nizhny Novgorod, 603950, Russia

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Journal article
Published: 06 February 2021 in Journal of Plant Physiology
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Mechanisms of the specific systemic response of plant to different adverse factors are poorly understood. We studied the mechanisms acting in wheat (Triticum aestivum L.) under the action of local burn and gradual heating. Both stimuli induce a variation potential (VP) propagation and a biphasic (fast and long-term phases) photosynthetic response in non-stimulated zones of plant with stimulus-specific parameters of the latter: the fast phase or long-term phase predominance in responses induced by burn or heating, respectively. The burn-induced VP and photosynthetic response attenuate with distance, while the heating-induced VP and photosynthetic response were of more stable amplitude in distant part of the stimulated plant. VP propagation in both cases induced apoplast alkalization with dynamics well corresponding to such of VP and of the fast phase of photosynthetic response. Gradual heating induced a significant rise in jasmonate production along with a decrease in stomatal conductance with characteristic times well corresponding to the long-term phase of the photosynthetic response. We suppose that the VP-induced pH shift is responsible for in the induction of the fast phase, while jasmonate production for the long-term phase of the photosynthetic response. The revealed differences in the systemic response to stressors studied, apparently, reflect two distinct plant adaptation strategies to fast and slow-growing stimuli. The immediate response in the tissue nearest to the damage zone is the most important under a fast-growing stimulus. The fundamentally different situation is under a slowly-growing stimulus which provokes long-term changes in the plant that ensure the preparation of the whole organism for impending environmental changes.

ACS Style

Maxim Mudrilov; Maria Ladeynova; Ekaterina Berezina; Marina Grinberg; Anna Brilkina; Vladimir Sukhov; Vladimir Vodeneev. Mechanisms of specific systemic response in wheat plants under different locally acting heat stimuli. Journal of Plant Physiology 2021, 258-259, 153377 .

AMA Style

Maxim Mudrilov, Maria Ladeynova, Ekaterina Berezina, Marina Grinberg, Anna Brilkina, Vladimir Sukhov, Vladimir Vodeneev. Mechanisms of specific systemic response in wheat plants under different locally acting heat stimuli. Journal of Plant Physiology. 2021; 258-259 ():153377.

Chicago/Turabian Style

Maxim Mudrilov; Maria Ladeynova; Ekaterina Berezina; Marina Grinberg; Anna Brilkina; Vladimir Sukhov; Vladimir Vodeneev. 2021. "Mechanisms of specific systemic response in wheat plants under different locally acting heat stimuli." Journal of Plant Physiology 258-259, no. : 153377.

Journal article
Published: 16 November 2020 in Plants
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Local damage (e.g., burning, heating, or crushing) causes the generation and propagation of a variation potential (VP), which is a unique electrical signal in higher plants. A VP influences numerous physiological processes, with photosynthesis and respiration being important targets. VP generation is based on transient inactivation of H+-ATPase in plasma membrane. In this work, we investigated the participation of this inactivation in the development of VP-induced photosynthetic and respiratory responses. Two- to three-week-old pea seedlings (Pisum sativum L.) and their protoplasts were investigated. Photosynthesis and respiration in intact seedlings were measured using a GFS-3000 gas analyzer, Dual-PAM-100 Pulse-Amplitude-Modulation (PAM)-fluorometer, and a Dual-PAM gas-exchange Cuvette 3010-Dual. Electrical activity was measured using extracellular electrodes. The parameters of photosynthetic light reactions in protoplasts were measured using the Dual-PAM-100; photosynthesis- and respiration-related changes in O2 exchange rate were measured using an Oxygraph Plus System. We found that preliminary changes in the activity of H+-ATPase in the plasma membrane (its inactivation by sodium orthovanadate or activation by fusicoccin) influenced the amplitudes and magnitudes of VP-induced photosynthetic and respiratory responses in intact seedlings. Decreases in H+-ATPase activity (sodium orthovanadate treatment) induced fast decreases in photosynthetic activity and increases in respiration in protoplasts. Thus, our results support the effect of H+-ATPase inactivation on VP-induced photosynthetic and respiratory responses.

ACS Style

Lyubov Yudina; Oksana Sherstneva; Ekaterina Sukhova; Marina Grinberg; Sergey Mysyagin; Vladimir Vodeneev; Vladimir Sukhov. Inactivation of H+-ATPase Participates in the Influence of Variation Potential on Photosynthesis and Respiration in Peas. Plants 2020, 9, 1585 .

AMA Style

Lyubov Yudina, Oksana Sherstneva, Ekaterina Sukhova, Marina Grinberg, Sergey Mysyagin, Vladimir Vodeneev, Vladimir Sukhov. Inactivation of H+-ATPase Participates in the Influence of Variation Potential on Photosynthesis and Respiration in Peas. Plants. 2020; 9 (11):1585.

Chicago/Turabian Style

Lyubov Yudina; Oksana Sherstneva; Ekaterina Sukhova; Marina Grinberg; Sergey Mysyagin; Vladimir Vodeneev; Vladimir Sukhov. 2020. "Inactivation of H+-ATPase Participates in the Influence of Variation Potential on Photosynthesis and Respiration in Peas." Plants 9, no. 11: 1585.

Journal article
Published: 15 October 2020 in Plants
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A local leaf burning causes variation potential (VP) propagation, a decrease in photosynthesis activity, and changes in the content of phytohormones in unstimulated leaves in pea plants. The VP-induced photosynthesis response develops in two phases: fast inactivation and long-term inactivation. Along with a decrease in photosynthetic activity, there is a transpiration suppression in unstimulated pea leaves, which corresponds to the long-term phase of photosynthesis response. Phytohormone level analysis showed an increase in the concentration of jasmonic acid (JA) preceding a transpiration suppression and a long-term phase of the photosynthesis response. Analysis of the spatial and temporal dynamics of electrical signals, phytohormone levels, photosynthesis, and transpiration activity showed the most pronounced changes in the more distant leaf from the area of local stimulation. The established features are related to the architecture of the vascular bundles in the pea stem.

ACS Style

Maria Ladeynova; Maxim Mudrilov; Ekaterina Berezina; Dmitry Kior; Marina Grinberg; Anna Brilkina; Vladimir Sukhov; Vladimir Vodeneev. Spatial and Temporal Dynamics of Electrical and Photosynthetic Activity and the Content of Phytohormones Induced by Local Stimulation of Pea Plants. Plants 2020, 9, 1364 .

AMA Style

Maria Ladeynova, Maxim Mudrilov, Ekaterina Berezina, Dmitry Kior, Marina Grinberg, Anna Brilkina, Vladimir Sukhov, Vladimir Vodeneev. Spatial and Temporal Dynamics of Electrical and Photosynthetic Activity and the Content of Phytohormones Induced by Local Stimulation of Pea Plants. Plants. 2020; 9 (10):1364.

Chicago/Turabian Style

Maria Ladeynova; Maxim Mudrilov; Ekaterina Berezina; Dmitry Kior; Marina Grinberg; Anna Brilkina; Vladimir Sukhov; Vladimir Vodeneev. 2020. "Spatial and Temporal Dynamics of Electrical and Photosynthetic Activity and the Content of Phytohormones Induced by Local Stimulation of Pea Plants." Plants 9, no. 10: 1364.

Journal article
Published: 04 October 2020 in Biology
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Abscisic acid (ABA) is an important hormone in plants that participates in their acclimation to the action of stressors. Treatment by exogenous ABA and its synthetic analogs are a potential way of controlling the tolerance of agricultural plants; however, the mechanisms of influence of the ABA treatment on photosynthetic processes require further investigations. The aim of our work was to investigate the participation of inactivation of the plasma membrane H+-ATP-ase on the influence of ABA treatment on photosynthetic processes and their regulation by electrical signals in peas. The ABA treatment of seedlings was performed by spraying them with aqueous solutions (10−5 M). The combination of a Dual-PAM-100 PAM fluorometer and GFS-3000 infrared gas analyzer was used for photosynthetic measurements; the patch clamp system on the basis of a SliceScope Pro 2000 microscope was used for measurements of electrical activity. It was shown that the ABA treatment stimulated the cyclic electron flow around photosystem I and decreased the photosynthetic CO2 assimilation, the amplitude of burning-induced electrical signals (variation potentials), and the magnitude of photosynthetic responses relating to these signals; in contrast, treatment with exogenous ABA increased the heat tolerance of photosynthesis. An investigation of the influence of ABA treatment on the metabolic component of the resting potential showed that this treatment decreased the activity of the H+-ATP-ase in the plasma membrane. Inhibitor analysis using sodium orthovanadate demonstrated that this decrease may be a mechanism of the ABA treatment-induced changes in photosynthetic processes, their heat tolerance, and regulation by electrical signals.

ACS Style

Lyubov Yudina; Ekaterina Sukhova; Oksana Sherstneva; Marina Grinberg; Maria Ladeynova; Vladimir Vodeneev; Vladimir Sukhov. Exogenous Abscisic Acid Can Influence Photosynthetic Processes in Peas through a Decrease in Activity of H+-ATP-ase in the Plasma Membrane. Biology 2020, 9, 324 .

AMA Style

Lyubov Yudina, Ekaterina Sukhova, Oksana Sherstneva, Marina Grinberg, Maria Ladeynova, Vladimir Vodeneev, Vladimir Sukhov. Exogenous Abscisic Acid Can Influence Photosynthetic Processes in Peas through a Decrease in Activity of H+-ATP-ase in the Plasma Membrane. Biology. 2020; 9 (10):324.

Chicago/Turabian Style

Lyubov Yudina; Ekaterina Sukhova; Oksana Sherstneva; Marina Grinberg; Maria Ladeynova; Vladimir Vodeneev; Vladimir Sukhov. 2020. "Exogenous Abscisic Acid Can Influence Photosynthetic Processes in Peas through a Decrease in Activity of H+-ATP-ase in the Plasma Membrane." Biology 9, no. 10: 324.

Review
Published: 01 June 2019 in Journal of Environmental Radioactivity
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The study of effects of ionizing radiation (IR) on plants is important in relation to several problems: (I) the existence of zones where background radiation - either natural or technogenic - is increased; (II) the problems of space biology; (III) the use of IR in agricultural selection; (IV) general biological problems related to the fundamental patterns and specifics of the effects of IR on various living organisms. By now, researchers have accumulated and systematized a large body of data on the effects of IR on the growth and reproduction of plants, as well as on the changes induced by IR at the genetic level. At the same time, there is a large gap in understanding the mechanisms of IR influence on the biochemical and physiological processes - despite the fact that these processes form the basis determining the manifestation of IR effects at the level of the whole organism. On the one hand, the activity of physiological processes determines the growth of plants; on the other, it is determined by changes at the genetic level. Thus, it is the study of IR effects at the physiological and biochemical levels that can give the most detailed and complex picture of IR action in plants. The review focuses on the effects of radiation on the essential physiological processes, including photosynthesis, respiration, long-distance transport, the functioning of the hormonal system, and various biosynthetic processes. On the basis of a large body of experimental data, we analyze dose and time dependences of the IR-induced effects - which are qualitatively similar - on various physiological and biochemical processes. We also consider the sequence of stages in the development of those effects and discuss their mechanisms, as well as the cause-effect relationships between them. The primary IR-induced physicochemical reactions include the formation of various forms of reactive oxygen species (ROS) and are the cause of the observed changes in the functional activity of plants. The review emphasizes the role of hydrogen peroxide, a long-lived ROS, not only as a damaging agent, but also as a mediator - a universal intracellular messenger, which provides for the mechanism of long-distance signaling. A supposition is made that IR affects physiological processes mainly by violating the regulation of their activity. The violation seems to become possible due to the fact that there exists a crosstalk between different signaling systems of plants, such as ROS, calcium, hormonal and electrical systems. As a result of both acute and chronic irradiation, an increase in the level of ROS can influence the activity of a wide range of physiological processes - by regulating them both at the genetic and physiological levels. To understand the ways, by which IR affects plant growth and development, one needs detailed knowledge about the mechanisms of the processes that occur at the (i) genetic and (ii) physiological levels, as well as their interplay and (iii) knowledge about regulation of these processes at different levels.

ACS Style

Sergey V. Gudkov; Marina A. Grinberg; Vladimir Sukhov; Vladimir Vodeneev. Effect of ionizing radiation on physiological and molecular processes in plants. Journal of Environmental Radioactivity 2019, 202, 8 -24.

AMA Style

Sergey V. Gudkov, Marina A. Grinberg, Vladimir Sukhov, Vladimir Vodeneev. Effect of ionizing radiation on physiological and molecular processes in plants. Journal of Environmental Radioactivity. 2019; 202 ():8-24.

Chicago/Turabian Style

Sergey V. Gudkov; Marina A. Grinberg; Vladimir Sukhov; Vladimir Vodeneev. 2019. "Effect of ionizing radiation on physiological and molecular processes in plants." Journal of Environmental Radioactivity 202, no. : 8-24.