Responses of genes of DNA repair, alternative oxidase, and pro-/antioxidant state in <i>Arabidopsis thaliana</i> with altered expression of <i>AOX1a</i> to gamma irradiation

Belykh, Elena S.; Velegzhaninov, Ilya O.; Гармаш, Е. В.

doi:10.1080/09553002.2022.1998712

Cited by 4 publications

(10 citation statements)

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“…2015; Belykh et al . 2021), and in some cases, the stress‐induced expression of AOX1c and AOX2 has also been observed (Clifton et al . 2005; Watanabe et al .…”

Section: Genes Encoding Other Aox Forms and Mitochondrial Components ...mentioning

confidence: 88%

“…2020, 2021; Belykh et al . 2021) and where it was significantly higher than that in the wild‐type plants (Vishwakarma et al . 2015).…”

Section: Ascorbate As An Important Player In Stress Signalling In Aox...mentioning

confidence: 98%

“…2015) or after treatment with γ‐radiation (Belykh et al . 2021). However, in all these experiments, the increased expression of AOX genes was not sufficient to compensate for the lack of AOX1a under stress conditions.…”

Section: Genes Encoding Other Aox Forms and Mitochondrial Components ...mentioning

confidence: 99%

“…2020, 2021; Belykh et al . 2021), indicating that Asc, or specifically, the ratio of Asc to its oxidized form, dehydroascorbate (DHA), plays an important role in stress signalling in AOX ‐suppressed plants.…”

Section: Ascorbate As An Important Player In Stress Signalling In Aox...mentioning

confidence: 99%

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Suppression of mitochondrial alternative oxidase can result in upregulation of the ROS scavenging network: some possible mechanisms underlying the compensation effect

Гармаш

2022

Plant Biol J

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Mitochondrial alternative oxidase is an important protein involved in maintaining cellular metabolic and energy balance, especially under stress conditions. AOX genes knockout is aimed at revealing the functions of AOX genes. Under unfavourable conditions, AOX-suppressed plants (mainly based on Arabidopsis AOX1a-knockout lines) usually experience strong oxidative stress. However, a compensation effect, which consists of the absence of AOX1a leading to an increase in defence response mechanisms, concomitant with a decrease in ROS content, has also been demonstrated. This review briefly describes the possible mechanisms underlying the compensation effect upon the suppression of AOX1a. Information about mitochondrial retrograde regulation of AOX is given. The importance of ROS and mitochondrial membrane potential in triggering the signal transmission from mitochondria in the absence of AOX or disturbance of mitochondrial electron transport chain functions is indicated. The few available data on the response of the cell to the absence of AOX at the level of changes in the hormonal balance and the reactions of chloroplasts are presented. The decrease in the relative amount of reduced ascorbate at stable ROS levels as a result of compensation in AOX1a-suppressed plants is proposed as a sign of stress development.Obtaining direct evidence on the mechanisms and signalling pathways involved in AOX modulation in the genome should facilitate a deeper understanding of the role of AOX in the integration of cellular signalling pathways.

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“…2015; Belykh et al . 2021), and in some cases, the stress‐induced expression of AOX1c and AOX2 has also been observed (Clifton et al . 2005; Watanabe et al .…”

Section: Genes Encoding Other Aox Forms and Mitochondrial Components ...mentioning

confidence: 88%

“…2020, 2021; Belykh et al . 2021) and where it was significantly higher than that in the wild‐type plants (Vishwakarma et al . 2015).…”

Section: Ascorbate As An Important Player In Stress Signalling In Aox...mentioning

confidence: 98%

Section: Genes Encoding Other Aox Forms and Mitochondrial Components ...mentioning

confidence: 99%

Section: Ascorbate As An Important Player In Stress Signalling In Aox...mentioning

confidence: 99%

See 2 more Smart Citations

Suppression of mitochondrial alternative oxidase can result in upregulation of the ROS scavenging network: some possible mechanisms underlying the compensation effect

Гармаш

2022

Plant Biol J

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“…Such specific features of plant mitochondria might be essential for the flexible modulation of energy-producing metabolisms depending on the situations. Indeed, the unique components of plant mitochondria include enzymes that prevent accumulation of damaging oxygen by-products by modulating energy-producing metabolisms or dissipating excess electrons accumulated in the mitochondria [ 3 , 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Mechanisms Regulating Energy Homeostasis in Plant Cells and Their Potential to Inspire Electrical Microgrids Models

et al. 2022

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In this paper, the main features of systems that are required to flexibly modulate energy states of plant cells in response to environmental fluctuations are surveyed and summarized. Plant cells possess multiple sources (chloroplasts and mitochondria) to produce energy that is consumed to drive many processes, as well as mechanisms that adequately provide energy to the processes with high priority depending on the conditions. Such energy-providing systems are tightly linked to sensors that monitor the status of the environment and inside the cell. In addition, plants possess the ability to efficiently store and transport energy both at the cell level and at a higher level. Furthermore, these systems can finely tune the various mechanisms of energy homeostasis in plant cells in response to the changes in environment, also assuring the plant survival under adverse environmental conditions. Electrical power systems are prone to the effects of environmental changes as well; furthermore, they are required to be increasingly resilient to the threats of extreme natural events caused, for example, by climate changes, outages, and/or external deliberate attacks. Starting from this consideration, similarities between energy-related processes in plant cells and electrical power grids are identified, and the potential of mechanisms regulating energy homeostasis in plant cells to inspire the definition of new models of flexible and resilient electrical power grids, particularly microgrids, is delineated. The main contribution of this review is surveying energy regulatory mechanisms in detail as a reference and helping readers to find useful information for their work in this research field.

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Exploring low-dose gamma radiation effects on monoterpene biosynthesis in Thymus vulgaris: insights into plant defense mechanisms

Kordrostami,

Sanjarian,

Shahbazi

et al. 2024

Environ Sci Pollut Res

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Responses of genes of DNA repair, alternative oxidase, and pro-/antioxidant state in Arabidopsis thaliana with altered expression of AOX1a to gamma irradiation

Cited by 4 publications

References 42 publications

Suppression of mitochondrial alternative oxidase can result in upregulation of the ROS scavenging network: some possible mechanisms underlying the compensation effect

Suppression of mitochondrial alternative oxidase can result in upregulation of the ROS scavenging network: some possible mechanisms underlying the compensation effect

Mechanisms Regulating Energy Homeostasis in Plant Cells and Their Potential to Inspire Electrical Microgrids Models

Exploring low-dose gamma radiation effects on monoterpene biosynthesis in Thymus vulgaris: insights into plant defense mechanisms

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