The Possible Roles of Priming with ZnO Nanoparticles in Mitigation of Salinity Stress in Lupine (Lupinus termis) Plants

Latef, Arafat Abdel Hamed Abdel; Alhmad, Mona Fawzy Abu; Ebnalwaled, A. A.

doi:10.1007/s00344-016-9618-x

Cited by 276 publications

(72 citation statements)

References 43 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%

“…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]. In addition, the accumulation of osmoregulators in the ST genotype was higher than that in Z0102, which increased their water absorption ability and salt tolerance ( Figure 5).…”

Section: Discussionsupporting

confidence: 86%

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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%

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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“…Efforts are continuously ongoing at global scale to improve the production of different salt sensitive crops in sodic soils through implementing the modern approaches of biotechnology including; development of novel plant varieties by plant breeding and synthetic biology, regular searches for salt mitigating endophytes and plant growth promoting bacteria and engaging them in plant growth promotion under salinity stress ( Bharti et al, 2016 ), microbial synthetic ecology to get the high-salt mitigating and plant growth promoting bacterial consortia ( Ryu et al, 2003 ; Malusa et al, 2012 ; Farrar et al, 2014 ), and use of nanotechnology ( Saxena et al, 2016 ). Consequently, a great success has been achieved in getting more biomass under salinity through these approaches ( Bharti et al, 2016 ; Abdel Latef et al, 2017 ). Yet, implementation of halotolerant bacteria for promoting the plant growth in sodic soil has given significantly better results.…”

Section: Introductionmentioning

confidence: 99%

Halotolerant Exiguobacterium profundum PHM11 Tolerate Salinity by Accumulating L-Proline and Fine-Tuning Gene Expression Profiles of Related Metabolic Pathways

et al. 2018

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Salinity stress is one of the serious factors, limiting production of major agricultural crops; especially, in sodic soils. A number of approaches are being applied to mitigate the salt-induced adverse effects in agricultural crops through implying different halotolerant microbes. In this aspect, a halotolerant, Exiguobacterium profundum PHM11 was evaluated under eight different salinity regimes; 100, 250, 500, 1000, 1500, 2000, 2500, and 3000 mM to know its inherent salt tolerance limits and salt-induced consequences affecting its natural metabolism. Based on the stoichiometric growth kinetics; 100 and 1500 mM concentrations were selected as optimal and minimal performance limits for PHM11. To know, how salt stress affects the expression profiles of regulatory genes of its key metabolic pathways, and total production of important metabolites; biomass, carotenoids, beta-carotene production, IAA and proline contents, and expression profiles of key genes affecting the protein folding, structural adaptations, transportation across the cell membrane, stress tolerance, carotenoids, IAA and mannitol production in PHM11 were studied under 100 and 1500 mM salinity. E. profundum PHM11 showed maximum and minimum growth, biomass and metabolite production at 100 and 1500 mM salinity respectively. Salt-induced fine-tuning of expression profiles of key genes of stress pathways was determined in halotolerant bacterium PHM11.

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“…Salinised plants evidenced a decreasing in plant growth characters such as shoot length, root length, fresh and dry weights as well as the contents of photosynthetic pigments (chlorophyll a and b, and carotenoids) and the activity of catalase (CAT) against control plants [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…Subsequently, MDA accumulation can avail as an important oxidative stress index [27]. In contrast, salinity stress boosted the contents of several organic solutes (soluble protein, soluble sugar, proline and total free amino acids), malondialdehyde (MDA), ascorbic acid and Na, as well as the activities of superoxide dismutase (SOD), peroxidase (POD), and ascorbate peroxidase (APX) in stressed plants relative to lupine control plants [16,24,28].…”

Section: Introductionmentioning

confidence: 99%

β-Aminobutyric Acid Raises Salt Tolerance and Reorganises Some Physiological Characters in Calendula officinalis L. Plant

Ali

Hassan

2019

ARRB

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Salt stress is one of the main factors limiting plant growth and yield globally. Seed priming technique with different chemicals including β-aminobutyric acid (BABA) is found to be effective in enhancing plant growth and development under biotic and abiotic stresses. Scarce reports have been found about BABA seed priming in medicinal plants under stress conditions; however, several studies have been conducted on other crops but have not made an in-depth study to investigate biochemical and physiological changes. In current study the shoot growth, relative water content (RWC), chlorophyll content, stomatal conductance, nutrient content (N, P, K, Na and Cl), proline, malondialdehyde (MDA), hydrogen peroxide (H2O2) content, antioxidants enzymes (CAT, SOD and POD), membrane stability index (MSI), total phenolic and flavonoids contents lipid peroxidation and membrane permeability were investigated in Calendula officinalis L. leaves due to BABA seed priming and/or salt stress treatment. Salt stress treatment significantly reduced the growth characters, inflorescence number as well as its fresh and dry weights, N, P and K contents in leaves, RWC, chlorophyll content, stomatal conductance, MSI and total phenolic and flavonoids contents of pot marigold. However, proline content, MDA accumulation, H2O2 content and antioxidant enzyme activity (CAT, SOD and POD) were increased due to salt stress. On the other hand, seed priming with BABA significantly improved the growth characters, inflorescence attributes and the previously mentioned physiological and biochemical parameters investigated relative to the control. Applying seed priming under salt stress conditions significantly mitigated the negative effects of salinity and enhanced the growth and productivity of pot marigold and therefore was suggested to be an effective technique prior to cultivation.

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The Possible Roles of Priming with ZnO Nanoparticles in Mitigation of Salinity Stress in Lupine (Lupinus termis) Plants

Cited by 276 publications

References 43 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

Halotolerant Exiguobacterium profundum PHM11 Tolerate Salinity by Accumulating L-Proline and Fine-Tuning Gene Expression Profiles of Related Metabolic Pathways

β-Aminobutyric Acid Raises Salt Tolerance and Reorganises Some Physiological Characters in Calendula officinalis L. Plant

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