New Approaches for Improving Salt Stress Tolerance in Rice

Abdelhamid, Magdi T.; Sękara, Agnieszka; Pessarakli, Mohammad; Alarcón, Juan José; Brestič, Marián; El-Ramady, Hassan; Gad, Nadia; Mohamed, Heba I.; Fares, W.; Heba, Sh. Shehata; Sofy, Mahmoud R.; El-Kafafi, El Sayed

doi:10.1007/978-981-15-4120-9_10

Cited by 18 publications

(15 citation statements)

References 126 publications

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“…Our results also showed that the increased Zn content stimulated the growth of Kargi and CSR 30 seedlings under salinity stress. At the same time, other studies showed that, without applying ZnO-NPs, salinity reduced O. sativa growth by reducing the uptake of Zn [65,[80][81][82]. Our results agree with earlier findings that reported external application of ZnO-NPs improved O. sativa growth [65,82,83].…”

Section: Discussionsupporting

confidence: 92%

Zinc Oxide Nanoparticles Improve Salt Tolerance in Rice Seedlings by Improving Physiological and Biochemical Indices

et al. 2022

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Understanding the salinity stress mechanisms is essential for crop improvement and sustainable agriculture. Salinity is prepotent abiotic stress compared with other abiotic stresses that decrease crop growth and development, reducing crop production and creating food security-related threats. Therefore, the input of metal oxide nanoparticles (NPs) such as zinc oxide nanoparticles (ZnO-NPs) can improve salt tolerance in crop plants, especially in the early stage of growth. Therefore, the aim of the current study was to evaluate the impact of ZnO-NPs on inducing salt tolerance in two rice (Oryza sativa L.) genotypes of seedlings. An undocumented rice landrace (Kargi) and salinity tolerance basmati rice (CSR 30) seeds were grown in a hydroponic system for two weeks with and without 50 mg/L concentrations of ZnO-NPs in various doses of NaCl (0, 60, 80, and 100 mM). Both Kargi (15.95–42.49%) and CSR 30 (15.34–33.12%) genotypes showed a reduction in plant height and photosynthetic pigments (chlorophyll a and b, carotenoids, and total chlorophyll), Zn content, and K+ uptake under stress condition, compared with control seedlings. On the other hand, stress upregulated proline, malondialdehyde (MDA), Na+ content, and antioxidant enzyme activities—namely, those of superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT), and glutathione reductase (GR)—in both O. sativa genotypes over the control. However, ZnO-NP-treated genotypes (Kargi and CSR 30) restored the photosynthetic pigment accumulation and K+ level, reforming the stomata and trichome morphology, and also increased antioxidant enzymes SOD, APX, CAT, and GR activity, which alleviated the oxidative stress, while reducing the level of MDA, proline, and H2O2 under stress condition. The present findings suggest that adding ZnO-NPs could mitigate the salinity stress in O. sativa by upregulating the antioxidative system and enhancing the cultivation of undocumented landrace (Kargi) and basmati (CSR 30) genotypes of O. sativa in salinity-affected areas.

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Section: Discussionsupporting

confidence: 92%

Zinc Oxide Nanoparticles Improve Salt Tolerance in Rice Seedlings by Improving Physiological and Biochemical Indices

et al. 2022

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“…Salinity is inhibitory to the growth and development of many plants, including most crops [2][3][4][5]. It affects all cellular processes, including disruption of cellular homeostasis, impairment of photosynthesis, mRNA processing, transcription, protein synthesis, disruption of energy metabolisms, amino acid biosynthesis as well as lipid metabolism [6][7][8][9][10]. In response to increasing salt, plant cells activate specific Na + and Cl − ion transporters and adjust the accumulation of cytosolic K + [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…It affects all cellular processes, including disruption of cellular homeostasis, impairment of photosynthesis, mRNA processing, transcription, protein synthesis, disruption of energy metabolisms, amino acid biosynthesis as well as lipid metabolism [6][7][8][9][10]. In response to increasing salt, plant cells activate specific Na + and Cl − ion transporters and adjust the accumulation of cytosolic K + [10][11][12]. Plant cells must also undergo osmotic adjustment, which is accomplished in many ways, including the production of organic osmolytes such as glycine betaine, proline, some sugars, and polyamines, of which most are synthesized in the chloroplast [3,10].…”

Section: Introductionmentioning

confidence: 99%

“…In response to increasing salt, plant cells activate specific Na + and Cl − ion transporters and adjust the accumulation of cytosolic K + [10][11][12]. Plant cells must also undergo osmotic adjustment, which is accomplished in many ways, including the production of organic osmolytes such as glycine betaine, proline, some sugars, and polyamines, of which most are synthesized in the chloroplast [3,10].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Salinity Stress on Chloroplast Structure and Function

Hameed

Ahmed

Hussain

et al. 2021

Cells

186

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Salinity is a growing problem affecting soils and agriculture in many parts of the world. The presence of salt in plant cells disrupts many basic metabolic processes, contributing to severe negative effects on plant development and growth. This review focuses on the effects of salinity on chloroplasts, including the structures and function of these organelles. Chloroplasts house various important biochemical reactions, including photosynthesis, most of which are considered essential for plant survival. Salinity can affect these reactions in a number of ways, for example, by changing the chloroplast size, number, lamellar organization, lipid and starch accumulation, and interfering with cross-membrane transportation. Research has shown that maintenance of the normal chloroplast physiology is necessary for the survival of the entire plant. Many plant species have evolved different mechanisms to withstand the harmful effects of salt-induced toxicity on their chloroplasts and its machinery. The differences depend on the plant species and growth stage and can be quite different between salt-sensitive (glycophyte) and salt-tolerant (halophyte) plants. Salt stress tolerance is a complex trait, and many aspects of salt tolerance in plants are not entirely clear yet. In this review, we discuss the different mechanisms of salt stress tolerance in plants with a special focus on chloroplast structure and its functions, including the underlying differences between glycophytes and halophytes.

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“…Under saline environment, Urea-HANPs accomplished its role in the synthesis of proline accumulated by sunflower as osmoprotectants. These osmoprotectants have low molecular weight, electrically neutral, possess non-toxic nature, and high solubility that competently maintain osmotic balance and stabilize the membrane proteins under salt stress(Abdelhamid et al, 2020).…”

mentioning

confidence: 99%

Modulating response of sunflower (Hellianthus annuus) to induced salinity stress through application of engineered urea functionalized hydroxyapatite nanoparticles

Ullah

Sher

Muhammad

et al. 2021

Microscopy Res & Technique

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Agro-nanotechnology aims to improve the quality and quantity of plants and plant products while preserving environmental health. Contemporary anecdotal studies that provide representation of the use of nanostructures as fertilizers, pesticides, and plant growth regulators have highlighted the need to determine the effect of such modified nanofertilizers on transforming plant yield under abiotic stress. Present study was performed to modulate the physiological response of Hellianthus annuus through the application of Urea capped hydroxyapatite nanoparticles (Urea-HANPs) in stressed environment. Hydroxyapatite nanoparticles were synthesized via coprecipitation method, functionalized with urea and characterized through a series of contemporary techniques of transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. We observed that Urea-HANPs significantly (p < .05) ameliorated resistivity in plant to osmotic stress by enhancing agronomic and physiobiochemical attributes. Elevated chlorophyll contents were reported from tested leaves treated with Urea-HANPs in T6 (0.05 M NaCl + 10 μg/ml Urea-HANP)

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New Approaches for Improving Salt Stress Tolerance in Rice

Cited by 18 publications

References 126 publications

Zinc Oxide Nanoparticles Improve Salt Tolerance in Rice Seedlings by Improving Physiological and Biochemical Indices

Zinc Oxide Nanoparticles Improve Salt Tolerance in Rice Seedlings by Improving Physiological and Biochemical Indices

Effects of Salinity Stress on Chloroplast Structure and Function

Modulating response of sunflower (Hellianthus annuus) to induced salinity stress through application of engineered urea functionalized hydroxyapatite nanoparticles

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