Effects of exogenous nitric oxide on wild barley (<i>Hordeum brevisubulatum</i>) under salt stress

Yin, Xiujie; Hu, Yue; Zhao, Yihang; Meng, Long; Zhang, Xiaomeng; Liu, Haoyue; Wang, Lina; Cui, Guowen

doi:10.1080/13102818.2022.2041096

Cited by 7 publications

(7 citation statements)

References 46 publications

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“…The data also showed that treatment with 150 mM NaCl caused a more considerable decrease in the chlorophyll content in Albanus than in Shamal. The obtained results are in harmony with earlier investigations on maize, sorghum, tomato, mustard, barley, and pea plants under salt stress [15,[65][66][67][68][69][70][71]. Our data (Figure 1) are also in accordance with previous studies on soy bean and pea plants under salt stress [72,73], which have shown that treatment with SNP prevents a salt-induced reduction of the leaf pigment content.…”

Section: Discussionsupporting

confidence: 93%

“…Moreover, our data revealed that the degree of protection was different in the two studied varieties, and depended on the applied SNP concentration, with concentrations up to 150 µM SNP giving better protection in both varieties of sorghum, while 300 µM SNP exhibited a weaker protective effect. Similar effects of different SNP concentrations have been shown for barley plants [71].…”

Section: Discussionsupporting

confidence: 77%

“…The degree of protection of chlorophylls and carotenoids is different in both studied varieties under NaCl stress, as the SNP spraying protects pigments more effectively at lower concentrations (25 µM-150 µM SNP), while at the highest concentration (300 µM) the protective effect weakens. Similar effects of high SNP concentrations were also observed in barley plants [71]. Moreover, this study showed variations in the effects of SNP on two varieties of wild-type barley, and the authors concluded that 100 µM SNP was most suitable for relieving chlorophylls under salt stress.…”

Section: Discussionsupporting

confidence: 75%

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Protective Effects of Sodium Nitroprusside on Photosynthetic Performance of Sorghum bicolor L. under Salt Stress

Stefanov

Rashkov

Yotsova

et al. 2023

Plants

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In this study, the impacts of the foliar application of different sodium nitroprusside (SNP, as a donor of nitric oxide) concentrations (0–300 µM) on two sorghum varieties (Sorghum bicolor L. Albanus and Sorghum bicolor L. Shamal) under salt stress (150 mM NaCl) were investigated. The data revealed that salinity leads to an increase in oxidative stress markers and damage of the membrane integrity, accompanied by a decrease in the chlorophyll content, the open photosystem II (PSII) centers, and the performance indexes (PI ABS and PI total), as well as having an influence on the electron flux reducing photosystem I (PSI) end acceptors (REo/RC). Spraying with SNP alleviated the NaCl toxicity on the photosynthetic functions; the protection was concentration-dependent, and greater in Shamal than in Albanus, i.e., variety specific. Furthermore, the experimental results revealed that the degree of SNP protection under salt stress also depends on the endogenous nitric oxide (NO) amount in leaves, the number of active reaction centers per PSII antenna chlorophylls, the enhanced electron flux reducing end acceptors at the acceptor side of PSI, as well as the stimulation of the cyclic electron transport around PSI. The results showed better protection in both varieties of sorghum for SNP concentrations up to 150 µM, which corresponds to about a 50% increase in the endogenous NO leaf content in comparison to the control plants. Our study provides valuable insight into the molecular mechanisms underlying SNP-induced salt tolerance in sorghum varieties and might be a practical approach to correcting salt intolerance.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 77%

Section: Discussionsupporting

confidence: 75%

See 1 more Smart Citation

Protective Effects of Sodium Nitroprusside on Photosynthetic Performance of Sorghum bicolor L. under Salt Stress

Stefanov

Rashkov

Yotsova

et al. 2023

Plants

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show abstract

“…Salt stress decreases the height, fresh weight, total dry weight, photosynthetic pigment content, and protein content of plants. The inhibitory effects of salt stress can be alleviated by exogenous NO treatment in wild barley [ 15 ]. Exogenous application of SNP increased the fresh weight and shoot/root elongation of Nitraria tangutorum seedlings under salt stress.…”

Section: No Alleviates Salt Stress-induced Damagementioning

confidence: 99%

The Role of Nitric Oxide in Plant Responses to Salt Stress

Shang

et al. 2022

IJMS

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The gas nitric oxide (NO) plays an important role in several biological processes in plants, including growth, development, and biotic/abiotic stress responses. Salinity has received increasing attention from scientists as an abiotic stressor that can seriously harm plant growth and crop yields. Under saline conditions, plants produce NO, which can alleviate salt-induced damage. Here, we summarize NO synthesis during salt stress and describe how NO is involved in alleviating salt stress effects through different strategies, including interactions with various other signaling molecules and plant hormones. Finally, future directions for research on the role of NO in plant salt tolerance are discussed. This summary will serve as a reference for researchers studying NO in plants.

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“…Conversely, an increased APX activity has been demonstrated in sweet potato or soybean plants exposed to NO donors ( Keyster et al., 2011 ; Lin et al., 2011 ); these results highlight that depending on the plant species and the source of NO applied, the impact on APX bioactivity might vary. On the other hand, the protective effect of NO on different plant species (i.e., barley, soybean, or mustard) exposed to salt stress through the increase of APX activity ( Egbichi et al., 2014 ; Fatma et al., 2016 ; Yin et al., 2021 ) and under drought stress in watermelon plants ( Hamurcu et al., 2020 ) has been revealed. Recently, Arabidopsis APX recombinant protein has been shown to be modulated by nitroalkylation, specifically by NO 2 -Ln ( Aranda-Caño et al., 2019 ).…”

Section: Drought and Salt Stressmentioning

confidence: 99%

Functions of nitric oxide-mediated post-translational modifications under abiotic stress

et al. 2023

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Environmental conditions greatly impact plant growth and development. In the current context of both global climate change and land degradation, abiotic stresses usually lead to growth restriction limiting crop production. Plants have evolved to sense and respond to maximize adaptation and survival; therefore, understanding the mechanisms involved in the different converging signaling networks becomes critical for improving plant tolerance. In the last few years, several studies have shown the plant responses against drought and salinity, high and low temperatures, mechanical wounding, heavy metals, hypoxia, UV radiation, or ozone stresses. These threats lead the plant to coordinate a crosstalk among different pathways, highlighting the role of phytohormones and reactive oxygen and nitrogen species (RONS). In particular, plants sense these reactive species through post-translational modification (PTM) of macromolecules such as nucleic acids, proteins, and fatty acids, hence triggering antioxidant responses with molecular implications in the plant welfare. Here, this review compiles the state of the art about how plant systems sense and transduce this crosstalk through PTMs of biological molecules, highlighting the S-nitrosylation of protein targets. These molecular mechanisms finally impact at a physiological level facing the abiotic stressful traits that could lead to establishing molecular patterns underlying stress responses and adaptation strategies.

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Effects of exogenous nitric oxide on wild barley (Hordeum brevisubulatum) under salt stress

Cited by 7 publications

References 46 publications

Protective Effects of Sodium Nitroprusside on Photosynthetic Performance of Sorghum bicolor L. under Salt Stress

Protective Effects of Sodium Nitroprusside on Photosynthetic Performance of Sorghum bicolor L. under Salt Stress

The Role of Nitric Oxide in Plant Responses to Salt Stress

Functions of nitric oxide-mediated post-translational modifications under abiotic stress

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