Nitric oxide alleviates salt-induced stress damage by regulating the ascorbate–glutathione cycle and Na+/K+ homeostasis in Nitraria tangutorum Bobr

Gao, Zheng; Zhang, Jiayuan; Zhang, Jie; Zhang, Wenxiu; Zheng, Linlin; Borjigin, Tebuqin; Wang, Yingchun

doi:10.1016/j.plaphy.2022.01.017

Cited by 42 publications

(24 citation statements)

References 48 publications

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“…Leaf senescence and root damage induced by salt stress were also alleviated. Meanwhile, application of the NO scavenger cPTIO and mammalian NOS inhibitor L-NAME significantly worsened stress-induced damage under high-salt conditions [ 16 ]. In plants, NO alleviates the damage caused by salt exposure via several strategies ( Figure 1 ), as summarized below.…”

Section: No Alleviates Salt Stress-induced Damagementioning

confidence: 99%

“…NO reportedly enhances the hydrolytic activity of plasma membrane (PM)-localized proton pump (H + -ATPase), which provides the driving force for improving ion imbalances in salt-stressed wheat plants [ 25 ]. The NO-induced gene expression and protein accumulation of PM H + -ATPase has been identified in several species, including reed, N. tangutorum , Avicennia marina , and K. obovata [ 6 , 16 , 26 , 27 ]. In addition, NO promotes the expression of Na + efflux pumps, such as the PM Na + /H + antiporter, to push Na + from the cytoplasm to the extracellular environment; this reduces the Na + content and the Na + /K + ratio in N. tangutorum and A. marina under saline conditions [ 16 , 26 ].…”

Section: No Alleviates Salt Stress-induced Damagementioning

confidence: 99%

“…NO stimulates the activity of vacuolar H + -ATPase and H + -PPase, which provide the driving force for Na + /H + exchange under salt stress in wheat leaves and maize seedlings [ 25 , 28 ]. In addition, NO promotes the gene expression and protein accumulation of vacuolar ion transporters, such as the Na + /H + antiporter, which sequester cytoplasmic Na + in vesicles so as to reduce the Na + content and Na + /K + ratio [ 16 , 26 ].…”

Section: No Alleviates Salt Stress-induced Damagementioning

confidence: 99%

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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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Section: No Alleviates Salt Stress-induced Damagementioning

confidence: 99%

Section: No Alleviates Salt Stress-induced Damagementioning

confidence: 99%

Section: No Alleviates Salt Stress-induced Damagementioning

confidence: 99%

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The Role of Nitric Oxide in Plant Responses to Salt Stress

Shang

et al. 2022

IJMS

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“…Alla et al 19 showed that nitrogen application could improve the photosynthetic activity of maize seedlings under NaCl stress, inhibit the reduction of protein and pigments, and effectively reduce the impact of salt stress. Gao et al 20 showed that nitrogen application could increase the content of antioxidants and the activity of antioxidant enzymes in Nitraria japonica under salt stress, and activate the ascorbic acid-glutathione (ASA-GSH) cycle through improving the expression of related genes, so as to eliminate excessive reactive oxygen species and alleviate salt stress.…”

Section: Introductionmentioning

confidence: 99%

Nitrogen application alleviates salt stress by enhancing osmotic balance, ROS scavenging, and photosynthesis of rapeseed seedlings (Brassica napus)

Tian

Wang

et al. 2022

Plant Signaling & Behavior

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Nitrogen application could alleviate salt stress on crops, but the specific physiological mechanism is still unclear. Therefore, in this study, a pot experiment was conducted to explore the effects of different application rates of nitrogen (0, 0.15, 0.30, and 0.45 g·kg −1 ) on the growth parameters, osmotic adjustment, reactive oxygen species scavenging, and photosynthesis of rapeseed seedlings planted in the soils with different concentrations of sodium chloride (1.5, 3.5, 5.5, and 7.5 g·kg −1 ). The results showed that nitrogen could alleviate the inhibition of salt on rapeseed growth, and improve the antioxidant enzyme activities and the contents of non-enzymatic substances, K + , soluble protein (SP), soluble sugar (SS), and proline. Besides, there was a significant correlation between the indexes of active oxygen scavenging system, osmoregulation system, and photosynthesis. Therefore, applying appropriate amount of nitrogen can promote the growth and development of rapeseed seedlings under salt stress, accelerate the scavenging of reactive oxygen species, maintain osmotic balance, and promote photosynthesis. This study will improve our understanding on the mechanism by which nitrogen application alleviates salt stress to crops.

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“…We also converted the corresponding concentration into international units. For these reasons, we decided to adopt such a salt concentration ( Miranda-Apodaca et al, 2020 ; Roman et al, 2020 ; Gao et al, 2022 ; Gou et al, 2022 ; Ni et al, 2022 ). A 1/2 dilution of Hoagland’s complete nutrient solution was used as the base to prepare hydroponic solutions with NaCl concentrations of 171, 342, 513, and 684 mmol, and 1/2 Hoagland’s complete nutrient solution (pH = 7.2) was used as a control (CK).…”

Section: Methodsmentioning

confidence: 99%

Study on the Relationship of Ions (Na, K, Ca) Absorption and Distribution to Photosynthetic Response of Salix matsudana Koidz Under Salt Stress

et al. 2022

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To identify the key indicators for salt tolerance evaluation of Salix matsudana Koidz, we explored the relationship of ion absorption and distribution with chlorophyll, fluorescence parameters (leaf performance index, maximum photochemical efficiency), and photosynthetic gas parameters (net photosynthetic rate, transpiration, stomatal conductance, intercellular carbon dioxide concentration) under salt stress. We established 4 treatment groups and one control group based on salinity levels of NaCl hydroponic solutions (171, 342, 513, and 684 mm). The Na+/K+, Na+/Ca2+, chlorophyll fluorescence, and photosynthetic parameters of leaves were measured on the 1st, 3rd, 5th, 8th, 11th, and 15th days to analyze the correlations of chlorophyll, chlorophyll fluorescence and photosynthetic parameters to the ion distribution ratio. The results showed that (1) The ratio of the dry weight of roots to leaves gradually increased with increasing salt concentration, whereas the water content of leaves and roots first increased and then decreased with increasing time. (2) The content of Na+, Na+/K+, and Na+/Ca2+ in roots and leaves increased with increasing salt stress concentration and treatment time, and the difference gradually narrowed. (3) Ca2+ was lost more than K+ under salt stress, and Na+/Ca2+ was more sensitive to the salt stress environment than Na+/K+. (4) Because the root system had a retention effect, both Na+/K+ and Na+/Ca2+ in roots under different NaCl concentrations and different treatment times were higher than those in leaves, and Na+/Ca2+ was much higher than Na+/K+ in roots. (5) Na+/K+ had a higher correlation with fluorescence parameters than Na+/Ca2+. Among them, Na+/K+ had a significantly negative correlation with the maximum photochemical efficiency, and the correlation coefficient R2 was 0.8576. (6) Photosynthetic gas parameters had a higher correlation with Na+/Ca2+ than with Na+/K+. Among them, significantly negative correlations were noted between Na+/Ca2+ and Gs as well as between Na+/Ca2+ and E under salt stress. The correlation between Na+/Ca2+ and Gs was the highest with a correlation coefficient of 0.9368. (7) Na+/K+ and Na+/Ca2+ had no significant correlation with chlorophylls. Na+/Ca2+ was selected as a key index to evaluate the salt tolerance of S. matsudana Koidz, and the results provided a reference for analyzing the relationship between ion transport and distribution for photosynthesis.

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Nitric oxide alleviates salt-induced stress damage by regulating the ascorbate–glutathione cycle and Na+/K+ homeostasis in Nitraria tangutorum Bobr

Cited by 42 publications

References 48 publications

The Role of Nitric Oxide in Plant Responses to Salt Stress

The Role of Nitric Oxide in Plant Responses to Salt Stress

Nitrogen application alleviates salt stress by enhancing osmotic balance, ROS scavenging, and photosynthesis of rapeseed seedlings (Brassica napus)

Study on the Relationship of Ions (Na, K, Ca) Absorption and Distribution to Photosynthetic Response of Salix matsudana Koidz Under Salt Stress

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