Exogenous salicylic acid improves salinity tolerance of Nitraria tangutorum

Liu, W.; Zhang, Y.; Yuan, Xiaoting; Xuan, Y. S.; Gao, Yang; Yan, Yi–Dan

doi:10.1134/s1021443716010118

Cited by 52 publications

(28 citation statements)

References 21 publications

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“…In the present study, salinity stress triggered the accumulation of compatible solutes such as soluble sugar, free amino acids, and soluble protein compared with non-saline and salt-stressed plants ( Figure 5). A similar accumulation trend of soluble sugar and protein under salt stress was reported by Ahmad et al [72], Abdel Latef et al [73], and Liu et al [74] for chickpeas, Lupine, and Nitraria tangutorum, respectively. Total free amino acid also started to escalate under salinity stress in wheat [75] and Lupinus termis [73].…”

Section: Discussionsupporting

confidence: 86%

Nitrogen Enhances Salt Tolerance by Modulating the Antioxidant Defense System and Osmoregulation Substance Content in Gossypium hirsutum

Sikder

Wang

Zhang

et al. 2020

Plants

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Increasing soil salinity suppresses both productivity and fiber quality of cotton, thus, an appropriate management approach needs to be developed to lessen the detrimental effect of salinity stress. This study assessed two cotton genotypes with different salt sensitivities to investigate the possible role of nitrogen supplementation at the seedling stage. Salt stress induced by sodium chloride (NaCl, 200 mmol·L −1 ) decreased the growth traits and dry mass production of both genotypes. Nitrogen supplementation increased the plant water status, photosynthetic pigment synthesis, and gas exchange attributes. Addition of nitrogen to the saline media significantly decreased the generation of lethal oxidative stress biomarkers such as hydrogen peroxide, lipid peroxidation, and electrolyte leakage ratio. The activity of the antioxidant defense system was upregulated in both saline and non-saline growth media as a result of nitrogen application. Furthermore, nitrogen supplementation enhanced the accumulation of osmolytes, such as soluble sugars, soluble proteins, and free amino acids. This established the beneficial role of nitrogen by retaining additional osmolality to uphold the relative water content and protect the photosynthetic apparatus, particularly in the salt-sensitive genotype. In summary, nitrogen application may represent a potential strategy to overcome the salinity-mediated impairment of cotton to some extent.Plants 2020, 9, 450 2 of 20 most sensitivity to salinity during the seedling growth stage, and remained sensitive at the reproductive stage [9]. Excess salinity inhibits plant growth and development by inducing osmotic stress, particular ion toxicity (Na + and Cl − ), oxidative damage, and/or nutritional disorders in plant tissues, which subsequently lead to weakened plant growth and endurance [10][11][12]. Salt stress has been shown to significantly decrease the uptake and metabolism of numerous mineral nutrients (such as nitrogen, potassium, phosphorus, and calcium), and accelerate the damage of the photosynthetic machinery as well as the whole salt tolerance mechanisms of plants. Salt stress-induced plant metabolism alterations are the secondary consequence of carbon and nitrogen metabolism [13]. Moreover, a high salt concentration perturbs electron transport systems in both chloroplasts and mitochondria [14,15]. This accelerates electron leakage from electron transportation chains and induces the generation of reactive oxygen species (ROS), such as superoxide radicals, hydroxyl radicals, and hydrogen peroxide [16,17]. The over-accumulation of ROS not only damages cellular and biological activities [18][19][20], but also degrades chlorophyll pigments and obstructs the synthesis of proteins, amino acids, lipids, deoxyribonucleic acid, as well as enzymatic and non-enzymatic activities of plants [17]. To avoid ROS-induced oxidative damage, plant-assured endogenous tolerance approaches, such as the antioxidant defense system as well as the accumulation of organic solutes and secondary metabolites [21]....

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Section: Discussionsupporting

confidence: 86%

Nitrogen Enhances Salt Tolerance by Modulating the Antioxidant Defense System and Osmoregulation Substance Content in Gossypium hirsutum

Sikder

Wang

Zhang

et al. 2020

Plants

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“…Exogenous application of SA can organize the activities of intracellular antioxidant enzymes and accelerate plant tolerance to different environmental stresses (Senaratna et al, 2000;Sakhabutdinova et al, 2004 andSabat, 2011). Likewise, enhancement of the activities of CAT, POX and SOD upon exogenous SA spraying on salinity-stressed plants has been previously reported (Yusuf et al, 2008;Hassan & Ali, 2014;Iqbal et al, 2014;Wang et al, 2015 andLiu et al, 2016). SA has been found to protect photosynthetic machinery from saltinduced oxidative stress hence, alleviated adverse effects of salt stress on photosynthesis and growth.…”

Section: Discussionmentioning

confidence: 92%

Exogenous Salicylic acid Ameliorates the Adverse Effects of Salt Stress on Antioxidant System in Rosmarinus officinalis L.

2018

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S ALT stress is a main factor limiting plant growth and productivity. Salicylic acid (SA) has been shown to alleviate the adverse effects of different environmental stresses on plants. To investigate the protective role of salicylic acid (SA) in alleviating salt stress on Rosmarinus officinalis L. (rosemary) plant, a pot experiment was conducted to measure the growth parameters such as plant height and branch number. An antioxidant defense system, represented by catalase (CAT), superoxide dismutase (SOD) and peroxidase (POX), was evaluated at both biochemical and transcriptional levels. NaCl was applied at 0, 25, 50 and 100mM and 0, 0.2 and 0.4mM of SA were used. The exposure of rosemary plant to salt conditions resulted in significant reduction of plant height, branches number and increases in the three measured antioxidant enzyme activities, compared to control. The foliar application of SA effectively increased growth rates and enhanced the activities of CAT, SOD and POX enzymes. The PCR (RT-PCR) analysis revealed that the relative transcript levels of SOD, CAT, and POX genes were changed and up-regulated compared to the control due to NaCl stress and SA treatments, reached the highest expression level by applying 25mM NaCl and 0 SA treatments. The results implied that SA regulated the transcript levels of the antioxidant genes, resulting in the increased contents of antioxidant enzymes and enhanced salt tolerance.

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“…Salicylic acid (SA) has been shown to influence salt tolerance in several plant species. [6][7][8][9][10] Exogenous SA may improve ion uptake and transport selectivity, 9,11 activate synthesis of some compatible osmolytes such as proline and sugars, 10,12 induce stomatal closure to avoid excessive water loss, 13 and increase antioxidative defenses within stressed tissues. 14 Beside its role in plant response to abiotic stress, SA assume a wide range of regulatory functions in the unstressed plant development.…”

Section: Introductionmentioning

confidence: 99%

Comparison between the impacts of two different modes of salicylic acid application on tomato (Solanum lycopersicum) responses to salinity

Gharbi

Lutts

Dailly

et al. 2018

Plant Signaling & Behavior

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Exogenous application of salicylic acid may improve tolerance to salinity. To investigate whether exogenous salicylic acid application had similar protective effects when applied as a priming agent or concomitantly with NaCl, tomato seedlings primed or not with 10 µM salicylic acid were further treated with 125 mM NaCl, 10 µM salicylic acid or combined treatments. Both priming and concomitant application of salicylic acid increased plant growth of salt-stressed plants but their positive impact was not additive. The endogenous salicylic acid concentration increased in the leaves after concomitant application but not in response to priming, suggesting that salicylic acid accumulated during priming was metabolized subsequently. Priming increased Na and K accumulation in leaves of salt-treated plants while concomitant application had no impact on shoot Na and K accumulation. Both priming and concomitant salicylic acid decreased osmotic potential values in salt-treated plants. Carbon isotope discrimination showed that combination of both salicylic acid application methods were required to maintain a good water use efficiency in salt-treated plants. Our work demonstrated that both procedures of salicylic acid application have positive impact on salt resistance but that the underlying properties sustaining these adaptations differ according to application methods.

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Exogenous salicylic acid improves salinity tolerance of Nitraria tangutorum

Cited by 52 publications

References 21 publications

Nitrogen Enhances Salt Tolerance by Modulating the Antioxidant Defense System and Osmoregulation Substance Content in Gossypium hirsutum

Nitrogen Enhances Salt Tolerance by Modulating the Antioxidant Defense System and Osmoregulation Substance Content in Gossypium hirsutum

Exogenous Salicylic acid Ameliorates the Adverse Effects of Salt Stress on Antioxidant System in Rosmarinus officinalis L.

Comparison between the impacts of two different modes of salicylic acid application on tomato (Solanum lycopersicum) responses to salinity

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