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Mona Soliman
Botany and Microbiology Department, Faculty of Science, Cairo University, Giza 12613, Egypt

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Journal article
Published: 18 August 2021 in Plants
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Salinity stress is one of the major environmental constraints responsible for a reduction in agricultural productivity. This study investigated the effect of exogenously applied nitric oxide (NO) (50 μM and 100 μM) in protecting wheat plants from NaCl-induced oxidative damage by modulating protective mechanisms, including osmolyte accumulation and the antioxidant system. Exogenously sourced NO proved effective in ameliorating the deleterious effects of salinity on the growth parameters studied. NO was beneficial in improving the photosynthetic efficiency, stomatal conductance, and chlorophyll content in normal and NaCl-treated wheat plants. Moreover, NO-treated plants maintained a greater accumulation of proline and soluble sugars, leading to higher relative water content maintenance. Exogenous-sourced NO at both concentrations up-regulated the antioxidant system for averting the NaCl-mediated oxidative damage on membranes. The activity of antioxidant enzymes increased the protection of membrane structural and functional integrity and photosynthetic efficiency. NO application imparted a marked effect on uptake of key mineral elements such as nitrogen (N), potassium (K), and calcium (Ca) with a concomitant reduction in the deleterious ions such as Na+. Greater K and reduced Na uptake in NO-treated plants lead to a considerable decline in the Na/K ratio. Enhancing of salt tolerance by NO was concomitant with an obvious down-regulation in the relative expression of SOS1, NHX1, AQP, and OSM-34, while D2-protein was up-regulated.

ACS Style

Ghalia S. H. Alnusairi; Yasser S. A. Mazrou; Sameer H. Qari; Amr A. Elkelish; Mona H. Soliman; Mohamed Eweis; Khaled Abdelaal; Gomaa Abd El-Samad; Mohamed F. M. Ibrahim; Nihal ElNahhas. Exogenous Nitric Oxide Reinforces Photosynthetic Efficiency, Osmolyte, Mineral Uptake, Antioxidant, Expression of Stress-Responsive Genes and Ameliorates the Effects of Salinity Stress in Wheat. Plants 2021, 10, 1693 .

AMA Style

Ghalia S. H. Alnusairi, Yasser S. A. Mazrou, Sameer H. Qari, Amr A. Elkelish, Mona H. Soliman, Mohamed Eweis, Khaled Abdelaal, Gomaa Abd El-Samad, Mohamed F. M. Ibrahim, Nihal ElNahhas. Exogenous Nitric Oxide Reinforces Photosynthetic Efficiency, Osmolyte, Mineral Uptake, Antioxidant, Expression of Stress-Responsive Genes and Ameliorates the Effects of Salinity Stress in Wheat. Plants. 2021; 10 (8):1693.

Chicago/Turabian Style

Ghalia S. H. Alnusairi; Yasser S. A. Mazrou; Sameer H. Qari; Amr A. Elkelish; Mona H. Soliman; Mohamed Eweis; Khaled Abdelaal; Gomaa Abd El-Samad; Mohamed F. M. Ibrahim; Nihal ElNahhas. 2021. "Exogenous Nitric Oxide Reinforces Photosynthetic Efficiency, Osmolyte, Mineral Uptake, Antioxidant, Expression of Stress-Responsive Genes and Ameliorates the Effects of Salinity Stress in Wheat." Plants 10, no. 8: 1693.

Journal article
Published: 06 July 2021 in Archives of Agronomy and Soil Science
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Salinity is among the most significant threats hindering global food security. The impact of Trichoderma, biochar, and combination on Spinach plants under salt stress conditions was investigated. Our results confirmed that salt stress (75, 150 mM) negatively affected morphological and physiological parameters of Spinach plants such as shoot (26.4%, 45.9%), and root length (16.1%, 51.2%), fresh and dry weights of root and shoot, membrane stability index (9.8%, 18.5%), relative water content(4.5%, 16.8%), chlorophyll content, mineral contents, endogenous phytohormones (auxin, gibberellins, abscisic acid, jasmonic acid, and salicylic acid) and total soluble protein content. However, electrolyte leakage, lipid peroxidation, reactive oxygen species production (such as hydrogen peroxide and hydroxyl radical), sodium, soluble sugars, proline contents, and antioxidant enzymes activities (peroxidase, catalase, and superoxide dismutase) significantly increased as a response to salt stress. The use of Trichoderma, biochar, and combination led to significant increases in all the above parameters; nevertheless, these treatments led to significant decreases in EL%, MDA, ROS, and sodium content in the stressed plants. The results proved the combination of Trichoderma and biochar is the most effective in alleviating the damaging impacts of salt on Spinach plants by increasing the up-regulation of antioxidants and decreasing membrane leakage and ROS.

ACS Style

Mahmoud Sofy; Heba Mohamed; Mona Dawood; Abdelghafar Abu-Elsaoud; Mona Soliman. Integrated usage of Trichoderma harzianum and biochar to ameliorate salt stress on spinach plants. Archives of Agronomy and Soil Science 2021, 1 -22.

AMA Style

Mahmoud Sofy, Heba Mohamed, Mona Dawood, Abdelghafar Abu-Elsaoud, Mona Soliman. Integrated usage of Trichoderma harzianum and biochar to ameliorate salt stress on spinach plants. Archives of Agronomy and Soil Science. 2021; ():1-22.

Chicago/Turabian Style

Mahmoud Sofy; Heba Mohamed; Mona Dawood; Abdelghafar Abu-Elsaoud; Mona Soliman. 2021. "Integrated usage of Trichoderma harzianum and biochar to ameliorate salt stress on spinach plants." Archives of Agronomy and Soil Science , no. : 1-22.

Original article
Published: 08 September 2020 in Acta Physiologiae Plantarum
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Nanotechnology applications are increasingly utilized to improve crops. Besides their use as antifungal and antimicrobial agents, silver nanoparticles (AgNPs) are currently exploited to improve seed germination, plant development, and photosynthetic efficiency. In the current study, we evaluated the effect of biosynthesized AgNPs in the seedlings of Zea mays L., Trigonella foenum-graecum L., and Allium cepa L. AgNPs were biosynthesized in the blue gum (Eucalyptus globules) leaves and characterized by UV–Visible spectra, Fourier Transform Infrared (FTIR), and Scanning Electron Microscopic analyses. The biosafety of the AgNPs was tested by cytotoxicity assay, antibacterial activity, and determination of MIC and MBC. The effects of biogenic AgNPs application at different concentrations (25, 50, 75 < and 100 mg L−1) on seed germination, seedling growth, oxidative stress status, and antioxidant enzyme activities were studied. Applications of AgNPs significantly improved seed germination and growth of Z. mays L., T. foenum-graecum L., and A. cepa L. (p < 0.05). Notably, growth was stimulated by an increase in the concentration of AgNPs. Applications of AgNPs also enhanced the activity of antioxidant enzymes, including catalase, peroxidase, and ascorbate peroxidase as well as glutathione and ascorbate contents, whereas the malondialdehyde content was reduced by increasing the concentration of AgNPs. The expression levels of antioxidant enzymes were upregulated in AgNP-treated seedlings compared with those of the control. Our study demonstrated that the application of silver nanoparticles significantly enhanced seed germination and antioxidant machinery and improved the early growth characteristics in both monocot and dicot crops.

ACS Style

Mona Soliman; Sameer H. Qari; Abdelghafar Abu-Elsaoud; Mohamed El-Esawi; Haifa Alhaithloul; Amr Elkelish. Rapid green synthesis of silver nanoparticles from blue gum augment growth and performance of maize, fenugreek, and onion by modulating plants cellular antioxidant machinery and genes expression. Acta Physiologiae Plantarum 2020, 42, 1 -16.

AMA Style

Mona Soliman, Sameer H. Qari, Abdelghafar Abu-Elsaoud, Mohamed El-Esawi, Haifa Alhaithloul, Amr Elkelish. Rapid green synthesis of silver nanoparticles from blue gum augment growth and performance of maize, fenugreek, and onion by modulating plants cellular antioxidant machinery and genes expression. Acta Physiologiae Plantarum. 2020; 42 (9):1-16.

Chicago/Turabian Style

Mona Soliman; Sameer H. Qari; Abdelghafar Abu-Elsaoud; Mohamed El-Esawi; Haifa Alhaithloul; Amr Elkelish. 2020. "Rapid green synthesis of silver nanoparticles from blue gum augment growth and performance of maize, fenugreek, and onion by modulating plants cellular antioxidant machinery and genes expression." Acta Physiologiae Plantarum 42, no. 9: 1-16.

Journal article
Published: 04 January 2020 in Antioxidants
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The heavy metal contamination in plant-soil environment has increased manifold recently. In order to reduce the harmful effects of metal stress in plants, the application of beneficial soil microbes is gaining much attention. In the present research, the role of Serratia marcescens BM1 in enhancing cadmium (Cd) stress tolerance and phytoremediation potential of soybean plants, was investigated. Exposure of soybean plants to two Cd doses (150 and 300 µM) significantly reduced plant growth, biomass, gas exchange attributes, nutrients uptake, antioxidant capacity, and the contents of chlorophyll, total phenolics, flavonoids, soluble sugars, and proteins. Additionally, Cd induced the stress levels of Cd, proline, glycine betaine, hydrogen peroxide, malondialdehyde, antioxidant enzymes (i.e., catalase, CAT; ascorbate peroxidase, APX; superoxide dismutase, SOD; peroxidise, POD), and the expression of stress-related genes (i.e., APX, CAT, Fe-SOD, POD, CHI, CHS, PHD2, VSO, NR, and P5CS) in soybean leaves. On the other hand, inoculation of Cd-stressed soybean plants with Serratia marcescens BM1 significantly enhanced the plant growth, biomass, gas exchange attributes, nutrients uptake, antioxidant capacity, and the contents of chlorophyll, total phenolics, flavonoids, soluble sugars, and proteins. Moreover, Serratia marcescens BM1 inoculation reduced the levels of cadmium and oxidative stress markers, but significantly induced the activities of antioxidant enzymes and the levels of osmolytes and stress-related genes expression in Cd-stressed plants. The application of 300 µM CdCl2 and Serratia marcescens triggered the highest expression levels of stress-related genes. Overall, this study suggests that inoculation of soybean plants with Serratia marcescens BM1 promotes phytoremediation potential and Cd stress tolerance by modulating the photosynthetic attributes, osmolytes biosynthesis, antioxidants machinery, and the expression of stress-related genes.

ACS Style

Mohamed A. El-Esawi; Amr Elkelish; Mona Soliman; Hosam O. Elansary; Abbu Zaid; Shabir H. Wani. Serratia marcescens BM1 Enhances Cadmium Stress Tolerance and Phytoremediation Potential of Soybean Through Modulation of Osmolytes, Leaf Gas Exchange, Antioxidant Machinery, and Stress-Responsive Genes Expression. Antioxidants 2020, 9, 43 .

AMA Style

Mohamed A. El-Esawi, Amr Elkelish, Mona Soliman, Hosam O. Elansary, Abbu Zaid, Shabir H. Wani. Serratia marcescens BM1 Enhances Cadmium Stress Tolerance and Phytoremediation Potential of Soybean Through Modulation of Osmolytes, Leaf Gas Exchange, Antioxidant Machinery, and Stress-Responsive Genes Expression. Antioxidants. 2020; 9 (1):43.

Chicago/Turabian Style

Mohamed A. El-Esawi; Amr Elkelish; Mona Soliman; Hosam O. Elansary; Abbu Zaid; Shabir H. Wani. 2020. "Serratia marcescens BM1 Enhances Cadmium Stress Tolerance and Phytoremediation Potential of Soybean Through Modulation of Osmolytes, Leaf Gas Exchange, Antioxidant Machinery, and Stress-Responsive Genes Expression." Antioxidants 9, no. 1: 43.

Journal article
Published: 01 January 2020 in Journal of Plant Interactions
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ACS Style

Mahadi Hasan; Arfan Ali; Mona H. Soliman; Abdulaziz A. Alqarawi; Elsayed Fathi Abd_Allah; Xiang-Wen Fang. Insights into 28-homobrassinolide (HBR)-mediated redox homeostasis, AsA–GSH cycle, and methylglyoxal detoxification in soybean under drought-induced oxidative stress. Journal of Plant Interactions 2020, 15, 371 -385.

AMA Style

Mahadi Hasan, Arfan Ali, Mona H. Soliman, Abdulaziz A. Alqarawi, Elsayed Fathi Abd_Allah, Xiang-Wen Fang. Insights into 28-homobrassinolide (HBR)-mediated redox homeostasis, AsA–GSH cycle, and methylglyoxal detoxification in soybean under drought-induced oxidative stress. Journal of Plant Interactions. 2020; 15 (1):371-385.

Chicago/Turabian Style

Mahadi Hasan; Arfan Ali; Mona H. Soliman; Abdulaziz A. Alqarawi; Elsayed Fathi Abd_Allah; Xiang-Wen Fang. 2020. "Insights into 28-homobrassinolide (HBR)-mediated redox homeostasis, AsA–GSH cycle, and methylglyoxal detoxification in soybean under drought-induced oxidative stress." Journal of Plant Interactions 15, no. 1: 371-385.

Journal article
Published: 27 December 2019 in Biomolecules
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Global warming contributes to higher temperatures and reduces rainfall for most areas worldwide. The concurrent incidence of extreme temperature and water shortage lead to temperature stress damage in plants. Seeking to imitate a more natural field situation and to figure out responses of specific stresses with regard to their combination, we investigated physiological, biochemical, and metabolomic variations following drought and heat stress imposition (alone and combined) and recovery, using Mentha piperita and Catharanthus roseus plants. Plants were exposed to drought and/or heat stress (35 °C) for seven and fourteen days. Plant height and weight (both fresh and dry weight) were significantly decreased by stress, and the effects more pronounced with a combined heat and drought treatment. Drought and/or heat stress triggered the accumulation of osmolytes (proline, sugars, glycine betaine, and sugar alcohols including inositol and mannitol), with maximum accumulation in response to the combined stress. Total phenol, flavonoid, and saponin contents decreased in response to drought and/or heat stress at seven and fourteen days; however, levels of other secondary metabolites, including tannins, terpenoids, and alkaloids, increased under stress in both plants, with maximal accumulation under the combined heat/drought stress. Extracts from leaves of both species significantly inhibited the growth of pathogenic fungi and bacteria, as well as two human cancer cell lines. Drought and heat stress significantly reduced the antimicrobial and anticancer activities of plants. The increased accumulation of secondary metabolites observed in response to drought and/or heat stress suggests that imposition of abiotic stress may be a strategy for increasing the content of the therapeutic secondary metabolites associated with these plants.

ACS Style

Haifa A. Alhaithloul; Mona H. Soliman; Keshav Lalit Ameta; Mohamed A. El-Esawi; Amr Elkelish. Changes in Ecophysiology, Osmolytes, and Secondary Metabolites of the Medicinal Plants of Mentha piperita and Catharanthus roseus Subjected to Drought and Heat Stress. Biomolecules 2019, 10, 43 .

AMA Style

Haifa A. Alhaithloul, Mona H. Soliman, Keshav Lalit Ameta, Mohamed A. El-Esawi, Amr Elkelish. Changes in Ecophysiology, Osmolytes, and Secondary Metabolites of the Medicinal Plants of Mentha piperita and Catharanthus roseus Subjected to Drought and Heat Stress. Biomolecules. 2019; 10 (1):43.

Chicago/Turabian Style

Haifa A. Alhaithloul; Mona H. Soliman; Keshav Lalit Ameta; Mohamed A. El-Esawi; Amr Elkelish. 2019. "Changes in Ecophysiology, Osmolytes, and Secondary Metabolites of the Medicinal Plants of Mentha piperita and Catharanthus roseus Subjected to Drought and Heat Stress." Biomolecules 10, no. 1: 43.

Journal article
Published: 01 December 2019 in Plants
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Nitric oxide (NO) at optimal levels is considered beneficial to plant functioning. The present study was carried out to investigate the role of exogenously applied NO (100 and 150 µM sodium nitropurusside, SNP) in amelioration of nickel (Ni)-mediated oxidative effects in eggplant. Ni stress declined growth and biomass production, relative water content (RWC), and chlorophyll pigment synthesis, thereby affecting the photosynthetic efficiency. Exogenously applied SNP proved beneficial in mitigating the Ni-mediated growth restrictions. NO-treated seedlings exhibited improved photosynthesis, stomatal conductance, and chlorophyll content with the effect of being apparent at lower concentration (100 µM SNP). SNP upregulated the antioxidant system mitigating the oxidative damage on membranes due to Ni stress. The activity of superoxide dismutase, catalase, glutathione S-transferase, ascorbate peroxidase, and glutathione reductase was upregulated due to SNP which also increased the ascorbate and reduced glutathione content. SNP-supplied seedlings also showed higher proline and glycine betaine accumulation, thereby improving RWC and antioxidant system. Glyoxalase I activity was induced due to SNP application declining the accumulation of methylglyoxal. NO-mediated mitigation of Ni toxicity was confirmed using NO scavenger (PTIO, 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide), which reversed the influence of SNP almost entirely on the parameters studied. Uptake of nitrogen (N), potassium (K), and calcium (Ca) was increased due to SNP application and Ni was reduced significantly. Therefore, this study revealed the efficiency of exogenous SNP in enhancing Ni stress tolerance through upregulating antioxidant and glyoxalase systems.

ACS Style

Mona Soliman; Haifa A. Alhaithloul; Khalid Rehman Hakeem; Basmah M. Alharbi; Mohamed El-Esawi; Amr Elkelish. Exogenous Nitric Oxide Mitigates Nickel-Induced Oxidative Damage in Eggplant by Upregulating Antioxidants, Osmolyte Metabolism, and Glyoxalase Systems. Plants 2019, 8, 562 .

AMA Style

Mona Soliman, Haifa A. Alhaithloul, Khalid Rehman Hakeem, Basmah M. Alharbi, Mohamed El-Esawi, Amr Elkelish. Exogenous Nitric Oxide Mitigates Nickel-Induced Oxidative Damage in Eggplant by Upregulating Antioxidants, Osmolyte Metabolism, and Glyoxalase Systems. Plants. 2019; 8 (12):562.

Chicago/Turabian Style

Mona Soliman; Haifa A. Alhaithloul; Khalid Rehman Hakeem; Basmah M. Alharbi; Mohamed El-Esawi; Amr Elkelish. 2019. "Exogenous Nitric Oxide Mitigates Nickel-Induced Oxidative Damage in Eggplant by Upregulating Antioxidants, Osmolyte Metabolism, and Glyoxalase Systems." Plants 8, no. 12: 562.

Journal article
Published: 11 November 2019 in Environmental and Experimental Botany
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We studied the role of Trichoderma harzianum (TH) in improving the physiological, biochemical, hormonal, and molecular parameters of tomato seedlings grown under waterlogging (WL, for 14 and 28 days). Pretreatment with TH significantly improved the growth of tomato by enhancing the chlorophyll synthesis and uptake of essential ions, including nitrogen, phosphorus, and potassium. A reduction in anthocyanin content was also ameliorated significantly by TH pretreatment. TH significantly mitigated the WL-induced decline in height and in fresh and dry biomass accumulation. Accumulation of proline, flavonoids, anthocyanin, sugars, and soluble protein increased with TH pretreatment. At both growth periods (14 and 28 days after treatment [DAT]), the accumulation of secondary metabolites, including total phenols and flavonoids, and the redox components (tocopherols) were increased significantly by TH pretreatment. Increased synthesis of metabolites maintained the antioxidant status of tomato, resulting in amelioration of WL-induced oxidative effects on membranes. WL and TH treatments significantly increased ethylene production and decreased abscisic acid content at both growth periods. The accumulation of reactive oxygen species, like hydrogen peroxide, in TH treated seedlings was correlated with the upregulation of the Fe-SOD gene. WL stress triggered the activity of sucrose synthase (SUS), lactate dehydrogenase (LDH), and pyruvate decarboxylase (PDC), which reached a maximum at 14 DAT, and TH pretreatment resulted in further enhancement above control and WL-stressed levels. Quantitative RT-PCR revealed differential expression of genes, where Fe-SOD and ADH were upregulated due to TH treatment and ARE, ACO, ERF, and aquaporin were downregulated relative to control plants. Pretreatment of tomato seedlings with TH improved tolerance to WL by maintaining the antioxidant status, sugar metabolism, and expression of critical genes. These results suggest that TH pretreatment is an effective way to improve WL tolerance in tomato at vegetative stage.

ACS Style

Amr Elkelish; Haifa Abdulaziz S. Alhaithloul; Sameer H. Qari; Mona H. Soliman; Mirza Hasanuzzaman. Pretreatment with Trichoderma harzianum alleviates waterlogging-induced growth alterations in tomato seedlings by modulating physiological, biochemical, and molecular mechanisms. Environmental and Experimental Botany 2019, 171, 103946 .

AMA Style

Amr Elkelish, Haifa Abdulaziz S. Alhaithloul, Sameer H. Qari, Mona H. Soliman, Mirza Hasanuzzaman. Pretreatment with Trichoderma harzianum alleviates waterlogging-induced growth alterations in tomato seedlings by modulating physiological, biochemical, and molecular mechanisms. Environmental and Experimental Botany. 2019; 171 ():103946.

Chicago/Turabian Style

Amr Elkelish; Haifa Abdulaziz S. Alhaithloul; Sameer H. Qari; Mona H. Soliman; Mirza Hasanuzzaman. 2019. "Pretreatment with Trichoderma harzianum alleviates waterlogging-induced growth alterations in tomato seedlings by modulating physiological, biochemical, and molecular mechanisms." Environmental and Experimental Botany 171, no. : 103946.

Regular paper
Published: 12 October 2019 in Journal of Plant Research
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Water stress reduces crop production significantly, and climate change has further aggravated the problem mainly in arid and semi-arid regions. This was the first study on the possible effects of β-sitosterol application in ameliorating the deleterious changes in wheat induced by water stress under field condition and drip irrigation regimes. A field experiment with the split-plot design was conducted, and wheat plants were foliar sprayed with four β-sitosterol (BBS) concentrations (0, 25, 75, and 100 mg L−1) and two irrigation regimes [50 and 100% of crop evapotranspiration (ETc)]. Water stress without BBS treatment reduced biological yield, grain yield, harvest index, and photosynthetic efficiency significantly by 28.9%, 42.8%, 19.6%, and 20.5% compared with the well-watered plants, respectively. Proline content increased in water-stressed and BSS-treated plants, owing to a significant role in cellular osmotic adjustment. Application of BSS was effective in reducing the generation of hydrogen peroxide (H2O2) and hence the malondialdehyde content significantly in water-stressed and well-watered wheat plants. Application of BSS up-regulated the activity of antioxidant enzymes (SOD, CAT, POD, and APX) significantly and increased the content of tocopherol, ascorbic acid, and carotene thereby reducing the levels of reactive oxygen species. The increased antioxidant system in BSS treated plants was further supported by the expression level of SOD and dehydrin genes in both water-stressed and well-watered plants. In the present study, the application of BBS at 100 mg L−1 was beneficial and can be recommended for improving the growth and yield of the wheat crop under water stress.

ACS Style

Amr Elkelish; Yasser Awad; Mona H. Soliman; Abdelghafar Abu-Elsaoud; Magdi Abdelhamid; Ibrahim El_Metwally. Exogenous application of β-sitosterol mediated growth and yield improvement in water-stressed wheat (Triticum aestivum) involves up-regulated antioxidant system. Journal of Plant Research 2019, 132, 881 -901.

AMA Style

Amr Elkelish, Yasser Awad, Mona H. Soliman, Abdelghafar Abu-Elsaoud, Magdi Abdelhamid, Ibrahim El_Metwally. Exogenous application of β-sitosterol mediated growth and yield improvement in water-stressed wheat (Triticum aestivum) involves up-regulated antioxidant system. Journal of Plant Research. 2019; 132 (6):881-901.

Chicago/Turabian Style

Amr Elkelish; Yasser Awad; Mona H. Soliman; Abdelghafar Abu-Elsaoud; Magdi Abdelhamid; Ibrahim El_Metwally. 2019. "Exogenous application of β-sitosterol mediated growth and yield improvement in water-stressed wheat (Triticum aestivum) involves up-regulated antioxidant system." Journal of Plant Research 132, no. 6: 881-901.

Review
Published: 30 June 2019 in International Journal of Molecular Sciences
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Polyamines (PAs) are found in all living organisms and serve many vital physiological processes. In plants, PAs are ubiquitous in plant growth, physiology, reproduction, and yield. In the last decades, PAs have been studied widely for exploring their function in conferring abiotic stresses (salt, drought, and metal/metalloid toxicity) tolerance. The role of PAs in enhancing antioxidant defense mechanism and subsequent oxidative stress tolerance in plants is well-evident. However, the enzymatic regulation in PAs biosynthesis and metabolism is still under research and widely variable under various stresses and plant types. Recently, exogenous use of PAs, such as putrescine, spermidine, and spermine, was found to play a vital role in enhancing stress tolerance traits in plants. Polyamines also interact with other molecules like phytohormones, nitric oxides, trace elements, and other signaling molecules to providing coordinating actions towards stress tolerance. Due to the rapid industrialization metal/metalloid(s) contamination in the soil and subsequent uptake and toxicity in plants causes the most significant yield loss in cultivated plants, which also hamper food security. Finding the ways in enhancing tolerance and remediation mechanism is one of the critical tasks for plant biologists. In this review, we will focus the recent update on the roles of PAs in conferring metal/metalloid(s) tolerance in plants.

ACS Style

Mirza Hasanuzzaman; Haifa Abdulaziz S. Alhaithloul; Khursheda Parvin; M.H.M. Borhannuddin Bhuyan; Mohsin Tanveer; Sayed Mohammad Mohsin; Kamrun Nahar; Mona H. Soliman; Jubayer Al Mahmud; Masayuki Fujita. Polyamine Action under Metal/Metalloid Stress: Regulation of Biosynthesis, Metabolism, and Molecular Interactions. International Journal of Molecular Sciences 2019, 20, 3215 .

AMA Style

Mirza Hasanuzzaman, Haifa Abdulaziz S. Alhaithloul, Khursheda Parvin, M.H.M. Borhannuddin Bhuyan, Mohsin Tanveer, Sayed Mohammad Mohsin, Kamrun Nahar, Mona H. Soliman, Jubayer Al Mahmud, Masayuki Fujita. Polyamine Action under Metal/Metalloid Stress: Regulation of Biosynthesis, Metabolism, and Molecular Interactions. International Journal of Molecular Sciences. 2019; 20 (13):3215.

Chicago/Turabian Style

Mirza Hasanuzzaman; Haifa Abdulaziz S. Alhaithloul; Khursheda Parvin; M.H.M. Borhannuddin Bhuyan; Mohsin Tanveer; Sayed Mohammad Mohsin; Kamrun Nahar; Mona H. Soliman; Jubayer Al Mahmud; Masayuki Fujita. 2019. "Polyamine Action under Metal/Metalloid Stress: Regulation of Biosynthesis, Metabolism, and Molecular Interactions." International Journal of Molecular Sciences 20, no. 13: 3215.

Journal article
Published: 08 February 2019 in Plant Physiology and Biochemistry
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Salinity stress hampers the growth of most crop plants and reduces yield considerably. Therefore, experiments were conducted on wheat (Triticum aestivum L.) plants for studying the role of selenium (5 and 10 μM Se) supplementation in strengthening the salinity stress tolerance. Exposure to salinity (100 mM NaCl) reduced growth in terms of length, fresh and dry biomass yield. Se was affective in ameliorating the deleterious effects of NaCl stress to significant levels when supplied at 5 μM concentrations compared to 10 μM. Application of Se at 5 μM concentration did not show significant impacts on the physiological and biochemical parameters studied. Plants supplemented with 5 μM Se exhibited the highest RWC, chlorophyll synthesis, and photosynthesis. Se supplementation reduced the NaCl-mediated oxidative damage by up-regulating the activity of enzymatic components of the antioxidant system and the accumulation of ascorbate and glutathione. Furthermore, 5 μM Se proved beneficial in enhancing proline and sugar accumulation in normal and NaCl-stressed seedlings providing extra osmolarity to maintain RWC and protect photosynthesis. Se also affected proline metabolism by modulating the activities of the γ-glutamyl kinase (γ-GK) and proline oxidase (PROX) leading to its greater synthesis and lesser degradation. Moreover, it was observed that Se declined the Na/K ratio and also improved nitrogen and Ca uptake. Conclusively, Se at low concentration can be beneficial in preventing salinity-mediated damage and further studies are required to unravel underlying mechanisms.

ACS Style

Amr A. Elkelish; Mona. H. Soliman; Haifa A. Alhaithloul; Mohamed A. El-Esawi. Selenium protects wheat seedlings against salt stress-mediated oxidative damage by up-regulating antioxidants and osmolytes metabolism. Plant Physiology and Biochemistry 2019, 137, 144 -153.

AMA Style

Amr A. Elkelish, Mona. H. Soliman, Haifa A. Alhaithloul, Mohamed A. El-Esawi. Selenium protects wheat seedlings against salt stress-mediated oxidative damage by up-regulating antioxidants and osmolytes metabolism. Plant Physiology and Biochemistry. 2019; 137 ():144-153.

Chicago/Turabian Style

Amr A. Elkelish; Mona. H. Soliman; Haifa A. Alhaithloul; Mohamed A. El-Esawi. 2019. "Selenium protects wheat seedlings against salt stress-mediated oxidative damage by up-regulating antioxidants and osmolytes metabolism." Plant Physiology and Biochemistry 137, no. : 144-153.

Journal article
Published: 15 February 2018 in Botanical Studies
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High and low temperatures constitute the most damaging type of abiotic stress and limit the survival, and productivity of plants. The present study aimed to evaluate the role of exogenous applications of acetylsalicylic acid (ASA) in reducing the deleterious effects of cold stress. Phaseolus vulgaris L. seedlings were treated with foliar-sprayed ASA at concentrations of 0–3 mM and then subjected to chilling stress at 4 °C for 2 or 4 days. Growth, photosynthesis, biochemical alterations, oxidative damage and antioxidant enzyme activities as well as the expression of cold-responsive genes (CBF3–COR47), were monitored during the experiment. ASA applications substantially improved several growth and photosynthetic parameters, including shoot biomass, dry weight, and photosynthetic pigments, of P. vulgaris seedlings exposed to different durations of chilling stresses. The ASA foliar spray treatments significantly (p < 0.05) rescued the growth and photosynthetic pigments of P. vulgaris seedlings under different chilling stresses. The total soluble sugars markedly increased during 0–4 days of chilling stress following ASA foliar spraying. The exogenous application of ASA significantly (p < 0.05) increased the accumulation of proline in P. vulgaris seedlings under chilling stress. At the gene expression level, ASA significantly (p < 0.05) upregulated the cold-responsive genes CBF3 and COR47. As a result, we speculate that, the application of exogenous ASA alleviated the adverse effects of chilling stress on all measured parameters, and 1 and 2 mM ASA exhibited the greatest effects.

ACS Style

Mona H. Soliman; Aisha A. M. Alayafi; Amr A. El Kelish; Abdelghafar M. Abu-Elsaoud. Acetylsalicylic acid enhance tolerance of Phaseolus vulgaris L. to chilling stress, improving photosynthesis, antioxidants and expression of cold stress responsive genes. Botanical Studies 2018, 59, 1 -17.

AMA Style

Mona H. Soliman, Aisha A. M. Alayafi, Amr A. El Kelish, Abdelghafar M. Abu-Elsaoud. Acetylsalicylic acid enhance tolerance of Phaseolus vulgaris L. to chilling stress, improving photosynthesis, antioxidants and expression of cold stress responsive genes. Botanical Studies. 2018; 59 (1):1-17.

Chicago/Turabian Style

Mona H. Soliman; Aisha A. M. Alayafi; Amr A. El Kelish; Abdelghafar M. Abu-Elsaoud. 2018. "Acetylsalicylic acid enhance tolerance of Phaseolus vulgaris L. to chilling stress, improving photosynthesis, antioxidants and expression of cold stress responsive genes." Botanical Studies 59, no. 1: 1-17.