Review on nitric oxide at the forefront of rapid systemic signaling in mitigation of salinity stress in plants: Crosstalk with calcium and hydrogen peroxide

Plant Science, Journal Year: 2023, Volume and Issue: 336, P. 111835 - 111835

Published: Aug. 21, 2023

Language: Английский

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The role of nitric oxide and hydrogen sulfide in regulation of redox homeostasis at extreme temperatures in plants

Frontiers in Plant Science, Journal Year: 2023, Volume and Issue: 14

Published: Feb. 7, 2023

Nitric oxide and hydrogen sulfide, as important signaling molecules (gasotransmitters), are involved in many functions of plant organism, including adaptation to stress factors various natures. As redox-active molecules, NO H 2 S redox regulation functional activity proteins. They also maintaining cell homeostasis due their ability interact directly indirectly (functionally) with ROS, thiols, other molecules. The review considers the involvement nitric sulfide responses low high temperatures. Particular attention is paid role gasotransmitters interaction mediators (in particular, Ca 2+ ions ROS) formation adaptive extreme Pathways stress-induced enhancement synthesis plants considered. Mechanisms effect on some proteins system, well state antioxidant osmoprotective systems during temperatures, were analyzed. Possibilities practical use donors inductors discussed.

Language: Английский

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Regulation of NO-Generating System Activity in Cucumber Root Response to Cold

International Journal of Molecular Sciences, Journal Year: 2025, Volume and Issue: 26(4), P. 1599 - 1599

Published: Feb. 13, 2025

Nitric oxide (NO) functions as a signaling molecule in plant adaptation to changing environmental conditions. NO levels were found increase plants response low temperatures (LTs). However, knowledge of the pathways involved enhanced production under cold stress is still limited. For this reason, we aimed determine role different sources generation cucumber roots exposed 10 °C for short (1 d) and long (6 periods. The short-term treatment seedlings with LT markedly increased plasma membrane-bound nitrate reductase (PM-NR) activity induced expression three genes encoding NR (CsNR1-3). On other hand, long-term exposure was related both cytoplasmic (cNR) CsARC gene, amidoxime-reducing component (ARC) protein. decrease nitrite (NiR) higher NO2-/NO3- ratio LTs 1 d suggest that tissue conditions may favor NR-dependent production. Regardless stimulation, significant NOS-like observed roots, especially during LT. These results indicate diverse NO-producing routes, reductive oxidative, are activated tissues at stages stress.

Language: Английский

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Enhancing plant drought tolerance through exogenous nitric oxide: a comprehensive meta-analysis

BMC Plant Biology, Journal Year: 2025, Volume and Issue: 25(1)

Published: April 9, 2025

Drought stress severely impacts plant growth and agricultural productivity, necessitating strategies to enhance drought tolerance. This meta-analysis synthesizes data from 48 peer-reviewed studies evaluate the effects of exogenous nitric oxide (NO) on growth, photosynthesis, antioxidant defense, osmoregulation under conditions. Results show that NO significantly improves shoot length, root dry weight, weight by 66.60%, 29.38%, 26.71%, 16.17%. Photosynthetic rate, stomatal conductance, intercellular CO₂, Leaf relative water content, total chlorophyll, chlorophyll a b was also improved 17.98%, 67.95%, 12.12%, 10.20%, 19.68%, 52.26%, 39.91%, respectively. Antioxidant enzyme activities, including superoxide dismutase, catalase, peroxidase, ascorbate were elevated 13.69%, 22.60%, 16.98%, 19.33%, Oxidative markers, hydrogen peroxide, superoxide, malondialdehyde, reduced 18.63%, 22.01%, 18.22%, Osmotic regulators, proline, soluble sugars, proteins, increased 17.01%, 18.34%, 30.40%. Subgroup analyses reveal NO's effectiveness is influenced environmental factors, species, application methods. confirms photosynthetic efficiency, osmotic regulation stress. The heterogeneity different conditions highlights importance improving methods, concentrations, These findings encourage focused research maximize benefits in enhancing crop resilience, promoting sustainable practices.

Language: Английский

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Gasotransmitters signaling and their crosstalk with other signaling molecules under diverse stress conditions in plants

South African Journal of Botany, Journal Year: 2024, Volume and Issue: 169, P. 119 - 133

Published: April 19, 2024

Language: Английский

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Harmonizing hydrogen sulfide and nitric oxide: A duo defending plants against salinity stress

Nitric Oxide, Journal Year: 2024, Volume and Issue: 144, P. 1 - 10

Published: Jan. 6, 2024

Language: Английский

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Plant development and heat stress: role of exogenous nutrients and phytohormones in thermotolerance

Discover Plants., Journal Year: 2024, Volume and Issue: 1(1)

Published: Sept. 17, 2024

Language: Английский

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Role of Acetic Acid and Nitric Oxide against Salinity and Lithium Stress in Canola (Brassica napus L.)

Plants, Journal Year: 2023, Volume and Issue: 13(1), P. 51 - 51

Published: Dec. 22, 2023

In this study, canola (Brassica napus L.) seedlings were treated with individual and combined salinity lithium (Li) stress, without acetic acid (AA) or nitric (NO), to investigate their possible roles against these stresses. Salinity intensified Li-induced damage, the principal component analysis revealed that was primarily driven by increased oxidative deregulation of sodium potassium accumulation, an imbalance in tissue water content. However, pretreatment AA NO prompted growth, re-established homeostasis, enhanced defense system nitrosative damage triggering antioxidant capacity. Combined stress negatively impacted phenylalanine ammonia lyase activity, affecting flavonoids, carotenoids, anthocyanin levels, which then restored plants primed NO. Additionally, helped maintain osmotic balance increasing trehalose proline levels upregulating signaling molecules such as hydrogen sulfide, γ-aminobutyric acid, salicylic acid. Both improved Li detoxification phytochelatins metallothioneins, reducing glutathione contents. Comparatively, exerted more effective protection detrimental effects than Our findings offer novel perspectives on impacts combining salt stress.

Language: Английский

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Deciphering the growth promoting and stress curtailing role of nitric oxide in Meloidogyne incognita infested Solanum lycopersicum seedlings

Scientia Horticulturae, Journal Year: 2023, Volume and Issue: 319, P. 112147 - 112147

Published: May 17, 2023

Language: Английский

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Nitric Oxide, a Key Modulator in the Alleviation of Environmental Stress-Mediated Damage in Crop Plants: A Meta-Analysis

Plants, Journal Year: 2023, Volume and Issue: 12(11), P. 2121 - 2121

Published: May 26, 2023

Nitric oxide (NO) is a small, diatomic, gaseous, free radicle, lipophilic, diffusible, and highly reactive molecule with unique properties that make it crucial signaling important physiological, biochemical, molecular implications for plants under normal stressful conditions. NO regulates plant growth developmental processes, such as seed germination, root growth, shoot development, flowering. It also in various cell elongation, differentiation, proliferation. the expression of genes encoding hormones molecules associated development. Abiotic stresses induce production plants, which can regulate biological stomatal closure, antioxidant defense, ion homeostasis, induction stress-responsive genes. Moreover, activate defense response mechanisms, pathogenesis-related proteins, phytohormones, metabolites against biotic oxidative stressors. directly inhibit pathogen by damaging their DNA proteins. Overall, exhibits diverse regulatory roles responses through complex mechanisms still require further studies. Understanding NO’s role biology essential developing strategies improved stress tolerance agriculture environmental management.

Language: Английский

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