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Prof. Mahmoud Sofy
Botany and Microbiology Department, Faculty of Science, Al-Azhar University

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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.

Research article
Published: 27 March 2021 in Environmental Science and Pollution Research
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Approximately 6% of the world’s total land area and 20% of the irrigated land are affected by salt stress. Egypt is one such country affected by salt-stress problems. This paper focuses on the role of isolated bacteria, such as Bacillus subtilis and Pseudomonas fluorescens, in alleviating the harmful effects of salt stress. The results show that the irrigation of plants with different concentrations of saline water (0, 75, and 150 mM NaCl) leads to significantly decreased growth criteria, photosynthetic pigments (i.e., chl a, chl b, and carotenoids), and membrane stability index (MSI) values. Moreover, malondialdehyde (MDA), glutathione content, endogenous proline, the antioxidant defense system, 1-aminocyclopropane-1-carboxylic acid (ACC) content, ACC synthase (ACS), ACC oxidase (ACO), and Na+ content were significantly increased under NaCl-stress exposure. On the contrary, treatment with endophytic bacteria significantly increased the resistance of pea plants to salt stress by increasing the enzymatic antioxidant defenses (i.e., superoxide dismutase, catalase, peroxidase, and glutathione reductase), non-enzymatic antioxidant defenses (i.e., glutathione), osmolyte substances such as proline, and antioxidant enzyme gene expression. As a result, endophytic bacteria’s use was significantly higher compared to control values for indole-3-acetic acid (IAA), gibberellic acid GA3, MSI, and photosynthetic pigments. The use of endophytic bacteria significantly decreased Na+ accumulation while, at the same time, promoting K+ uptake. In conclusion, the induction of endophytic bacterium-induced salt tolerance in pea plants depends primarily on the effect of endophytic bacteria on osmoregulation, the antioxidant capacity, and ion uptake adjustment by limiting the uptake of Na+ and, alternatively, increasing the accumulation of K+ in plant tissue.

ACS Style

Mahmoud R. Sofy; Akram A. Aboseidah; Samia A. Heneidak; Hoda R. Ahmed. ACC deaminase containing endophytic bacteria ameliorate salt stress in Pisum sativum through reduced oxidative damage and induction of antioxidative defense systems. Environmental Science and Pollution Research 2021, 28, 40971 -40991.

AMA Style

Mahmoud R. Sofy, Akram A. Aboseidah, Samia A. Heneidak, Hoda R. Ahmed. ACC deaminase containing endophytic bacteria ameliorate salt stress in Pisum sativum through reduced oxidative damage and induction of antioxidative defense systems. Environmental Science and Pollution Research. 2021; 28 (30):40971-40991.

Chicago/Turabian Style

Mahmoud R. Sofy; Akram A. Aboseidah; Samia A. Heneidak; Hoda R. Ahmed. 2021. "ACC deaminase containing endophytic bacteria ameliorate salt stress in Pisum sativum through reduced oxidative damage and induction of antioxidative defense systems." Environmental Science and Pollution Research 28, no. 30: 40971-40991.

Journal article
Published: 02 March 2021 in Molecules
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Tomato mosaic virus (ToMV) is one of the economically damageable Tobamovirus infecting the tomato in Egypt that has caused significant losses. It is therefore of great interest to trigger systemic resistance to ToMV. In this endeavor, we aimed to explore the capacity of ZnO-NPs (zinc oxide nanoparticles) to trigger tomato plant resistance against ToMV. Effects of ZnO-NPs on tomato (Solanum lycopersicum L.) growth indices and antioxidant defense system activity under ToMV stress were investigated. Noticeably that treatment with ZnO-NPs showed remarkably increased growth indices, photosynthetic attributes, and enzymatic and non-enzymatic antioxidants compared to the challenge control. Interestingly, oxidative damage caused by ToMV was reduced by reducing malondialdehyde, H2O2, and O2 levels. Overall, ZnO-NPs offer a safe and economic antiviral agent against ToMV.

ACS Style

Ahmed Sofy; Mahmoud Sofy; Ahmed Hmed; Rehab Dawoud; Abd Alnaggar; Ahmed Soliman; Noha El-Dougdoug. Ameliorating the Adverse Effects of Tomato mosaic tobamovirus Infecting Tomato Plants in Egypt by Boosting Immunity in Tomato Plants Using Zinc Oxide Nanoparticles. Molecules 2021, 26, 1337 .

AMA Style

Ahmed Sofy, Mahmoud Sofy, Ahmed Hmed, Rehab Dawoud, Abd Alnaggar, Ahmed Soliman, Noha El-Dougdoug. Ameliorating the Adverse Effects of Tomato mosaic tobamovirus Infecting Tomato Plants in Egypt by Boosting Immunity in Tomato Plants Using Zinc Oxide Nanoparticles. Molecules. 2021; 26 (5):1337.

Chicago/Turabian Style

Ahmed Sofy; Mahmoud Sofy; Ahmed Hmed; Rehab Dawoud; Abd Alnaggar; Ahmed Soliman; Noha El-Dougdoug. 2021. "Ameliorating the Adverse Effects of Tomato mosaic tobamovirus Infecting Tomato Plants in Egypt by Boosting Immunity in Tomato Plants Using Zinc Oxide Nanoparticles." Molecules 26, no. 5: 1337.

Journal article
Published: 28 February 2021 in Plants
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During the spring of 2019, distinct virus-like symptoms were observed in the Kafr El-Sheikh Governorate in Egypt in naturally infected eggplants. Leaves of affected plants showed interveinal leaf chlorosis, net yellow, chlorotic sectors, mottling, blisters, vein enation, necrotic intervention, and narrowing symptoms. The Alfalfa mosaic virus (AMV) was suspected of to be involved in this disease. Forty plant samples from symptomatic eggplants and 10 leaf samples with no symptoms were collected. The samples were tested by double antibody sandwich ELISA (DAS-ELISA) using AMV-IgG. Six of the 40 symptomatic leaf samples tested positive for AMV, while, DAS-ELISA found no AMV in the 10 leaf samples without symptoms. The AMV Egyptian isolate (AMV-Eggplant-EG) was biologically isolated from the six positive samples tested by DAS-ELISA and from the similar local lesions induced on Chenopodium amaranticolor and then re-inoculated in healthy Solanum melongena as a source of AMV-Eggplant-EG and confirmed by DAS-ELISA. Reverse transcription polymerase chain reaction (RT-PCR) assay with a pair of primers specific for coat protein (CP) encoding RNA 3 of AMV yielded an amplicon of 666 bp from infected plants of Solanum melongena with AMV-Eggplant-EG. The amplified PCR product was cloned and sequenced. Analysis of the AMV-Eggplant-EG sequence revealed 666 nucleotides (nt) of the complete CP gene (translating 221 amino acid (aa) residues). Analysis of phylogeny for nt and deduced aa sequences of the CP gene using the maximum parsimony method clustered AMV-Eggplant-EG in the lineage of Egyptian isolates (shark-EG, mans-EG, CP2-EG, and FRE-EG) with a high bootstrap value of 88% and 92%, respectively. In addition to molecular studies, melatonin (MTL) and salicylic acid (SA) (100 μM) were used to increase the resistance of eggplant to AMV- infection. Foliar spray with MLT and SA caused a significant increase in the morphological criteria (shoot, root length, number of leaves, leaf area, and leaf biomass), chlorophyll and carotenoid content, antioxidant enzymes, and gene expression of some enzymes compared to the infected plants. On the other hand, treatment with MLT and SA reduced the oxidative damage caused by AMV through the reduction of hydrogen peroxide, superoxide anions, hydroxyl radicals, and malondialdehyde. In conclusion, MLT and SA are eco-friendly compounds and can be used as antiviral compounds.

ACS Style

Ahmed Sofy; Mahmoud Sofy; Ahmed Hmed; Rehab Dawoud; Ehab Refaey; Heba Mohamed; Noha El-Dougdoug. Molecular Characterization of the Alfalfa mosaic virus Infecting Solanum melongena in Egypt and the Control of Its Deleterious Effects with Melatonin and Salicylic Acid. Plants 2021, 10, 459 .

AMA Style

Ahmed Sofy, Mahmoud Sofy, Ahmed Hmed, Rehab Dawoud, Ehab Refaey, Heba Mohamed, Noha El-Dougdoug. Molecular Characterization of the Alfalfa mosaic virus Infecting Solanum melongena in Egypt and the Control of Its Deleterious Effects with Melatonin and Salicylic Acid. Plants. 2021; 10 (3):459.

Chicago/Turabian Style

Ahmed Sofy; Mahmoud Sofy; Ahmed Hmed; Rehab Dawoud; Ehab Refaey; Heba Mohamed; Noha El-Dougdoug. 2021. "Molecular Characterization of the Alfalfa mosaic virus Infecting Solanum melongena in Egypt and the Control of Its Deleterious Effects with Melatonin and Salicylic Acid." Plants 10, no. 3: 459.

Original paper
Published: 03 November 2020 in Journal of Soil Science and Plant Nutrition
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Freshwater resources comprise only 2.5–2.75% of all water on the Earth, 1.75–2% from them are frozen. We urgently desperately need to conserve water and find an effective alternative agriculture system. Other techniques-agricultural practices and food sources must be used to avoid disasters. We aimed to compare two farming systems (hydroponic with microbubbles or macrobubbles and sand soil) and to find the best system with the lowest cost and high production of low-water plants. We used three hydroponic system: (i) without the application of bubbles (T1), (ii) with the application of microbubbles (T2), (iii) macrobubbles (T3), and the conventional cultivation-based soil (T4). The results show significant differences in the morphological and biochemical parameters of lettuce plants grown in the hydroponic system and conventional cultivation-based soil. The morphological characteristic, chlorophyll, phenol, flavonoid content, enzymatic and non-enzymatic antioxidants, mineral content, and dissolved oxygen were significantly greater in plants grown in the microbubble hydroponic system. In addition, total soluble sugars, proline, and MDA content were significantly greater in plants grown in sand soil (T4) as compared to the plants grown in different hydroponic systems (T1, T2, T3). The results show that the water consumed in the hydroponic system is lower than used in sandy soil. Our findings suggest that the hydroponic system can increase income and reduce the amount of water consumed; therefore, plants grown in hydroponic systems with microbubbles have achieved the best plant growth, secondary metabolites, and antioxidants compared to plants grown in other systems.

ACS Style

Mahmoud S. Abu-Shahba; Mahmoud M. Mansour; Heba I. Mohamed; Mahmoud R. Sofy. Comparative Cultivation and Biochemical Analysis of Iceberg Lettuce Grown in Sand Soil and Hydroponics With or Without Microbubbles and Macrobubbles. Journal of Soil Science and Plant Nutrition 2020, 21, 389 -403.

AMA Style

Mahmoud S. Abu-Shahba, Mahmoud M. Mansour, Heba I. Mohamed, Mahmoud R. Sofy. Comparative Cultivation and Biochemical Analysis of Iceberg Lettuce Grown in Sand Soil and Hydroponics With or Without Microbubbles and Macrobubbles. Journal of Soil Science and Plant Nutrition. 2020; 21 (1):389-403.

Chicago/Turabian Style

Mahmoud S. Abu-Shahba; Mahmoud M. Mansour; Heba I. Mohamed; Mahmoud R. Sofy. 2020. "Comparative Cultivation and Biochemical Analysis of Iceberg Lettuce Grown in Sand Soil and Hydroponics With or Without Microbubbles and Macrobubbles." Journal of Soil Science and Plant Nutrition 21, no. 1: 389-403.

Journal article
Published: 14 September 2020 in Plants
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Soil salinity is the main obstacle to worldwide sustainable productivity and food security. Zinc sulfate (Zn) and paclobutrazol (PBZ) as a cost-effective agent, has multiple biochemical functions in plant productivity. Meanwhile, their synergistic effects on inducing salt tolerance are indecisive and not often reported. A pot experiment was done for evaluating the defensive function of Zn (100 mg/L) or PBZ (200 mg/L) on salt (0, 50, 100 mM NaCl) affected pea plant growth, photosynthetic pigment, ions, antioxidant capacity, and yield. Salinity stress significantly reduces all growth and yield attributes of pea plants relative to nonsalinized treatment. This reduction was accompanied by a decline in chlorophyll, nitrogen, phosphorus, and potassium (K+), the ratio between K+ and sodium (Na+), as well as reduced glutathione (GSH) and glutathione reductase (GR). Alternatively, salinity increased Na+, carotenoid (CAR), proline (PRO), ascorbic acid (AsA), superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX) over nonsalinized treatment. Foliar spraying with Zn and PBZ under normal condition increased plant growth, nitrogen, phosphorus, potassium, K+/Na+ ratio, CAR, PRO, AsA, GSH, APX, GR, and yield and its quality, meanwhile decreased Na+ over nonsprayed plants. Application of Zn and PBZ counteracted the harmful effects of salinity on pea plants, by upregulating the antioxidant system, ion homeostasis, and improving chlorophyll biosynthesis that induced plant growth and yield components. In conclusion, Zn plus PBZ application at 30 and 45 days from sowing offset the injuries of salinity on pea plant growth and yield by upregulating the antioxidant capacity and increasing photosynthetic pigments.

ACS Style

Mahmoud R. Sofy; Khalid M. Elhindi; Saad Farouk; Majed A. Alotaibi. Zinc and Paclobutrazol Mediated Regulation of Growth, Upregulating Antioxidant Aptitude and Plant Productivity of Pea Plants under Salinity. Plants 2020, 9, 1197 .

AMA Style

Mahmoud R. Sofy, Khalid M. Elhindi, Saad Farouk, Majed A. Alotaibi. Zinc and Paclobutrazol Mediated Regulation of Growth, Upregulating Antioxidant Aptitude and Plant Productivity of Pea Plants under Salinity. Plants. 2020; 9 (9):1197.

Chicago/Turabian Style

Mahmoud R. Sofy; Khalid M. Elhindi; Saad Farouk; Majed A. Alotaibi. 2020. "Zinc and Paclobutrazol Mediated Regulation of Growth, Upregulating Antioxidant Aptitude and Plant Productivity of Pea Plants under Salinity." Plants 9, no. 9: 1197.

Journal article
Published: 10 July 2020 in International Journal of Biological Macromolecules
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Bean yellow mosaic virus (BYMV) is the main cause of the mosaic and malformation of many plants, worldwide. Thus, the triggering of plant systemic resistance against BYMV is of great interest. In this endeavor, we aimed to explore the capacity of new carboxymethyl chitosan-titania nanobiocomposites (NBCs, NBC1,2) to trigger faba bean plants resistance against BYMV. Effects of NBCs on faba bean (Vicia faba L.) disease severity (DS), growth parameters, and antioxidant defense system activity were investigated under BYMV stress. Noticeably that the DS in NBCs-treated faba bean was significantly reduced compared to untreated plants. Moreover, treatment with NBCs was remarkably increased growth indices, photosynthetic pigments, membrane stability index, and relative water content compared to challenge control. Additionally, enzymatic and non-enzymatic antioxidants and total soluble protein were significantly increased. Contrary, electrolyte leakage, hydrogen peroxide, and lipid peroxidation were reduced. Interestingly that NBC1 has higher efficacy than NBC2 in triggering plant immune-system against BYMV as indicated from DS percentage (DS = 10.66% and 19.33% in case of plants treated with NBC1 and NBC2, respectively). This could be attributed to the higher content of TNPs in NBC1 (21.58%) as compared to NBC2 (14.32%). Overall, NBCs offer safe and economic antiviral agents against BYMV.

ACS Style

Ahmed R. Sofy; Ahmed A. Hmed; Abd El-Aleem M. Alnaggar; Rehab A. Dawoud; Reda F.M. Elshaarawy; Mahmoud R. Sofy. Mitigating effects of Bean yellow mosaic virus infection in faba bean using new carboxymethyl chitosan-titania nanobiocomposites. International Journal of Biological Macromolecules 2020, 163, 1261 -1275.

AMA Style

Ahmed R. Sofy, Ahmed A. Hmed, Abd El-Aleem M. Alnaggar, Rehab A. Dawoud, Reda F.M. Elshaarawy, Mahmoud R. Sofy. Mitigating effects of Bean yellow mosaic virus infection in faba bean using new carboxymethyl chitosan-titania nanobiocomposites. International Journal of Biological Macromolecules. 2020; 163 ():1261-1275.

Chicago/Turabian Style

Ahmed R. Sofy; Ahmed A. Hmed; Abd El-Aleem M. Alnaggar; Rehab A. Dawoud; Reda F.M. Elshaarawy; Mahmoud R. Sofy. 2020. "Mitigating effects of Bean yellow mosaic virus infection in faba bean using new carboxymethyl chitosan-titania nanobiocomposites." International Journal of Biological Macromolecules 163, no. : 1261-1275.

Journal article
Published: 10 June 2020 in Sustainability
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In recent years, nutrient management has gained much attention as a way to mitigate heavy metal stress. Silicon (Si) promotes plant defense responses against toxic metal stresses. In this study, we evaluated the effects of silicon (Si) on copper (Cu) toxicity in two flax genotypes (Sakha 1 and Sakha 2) as it relates to plant growth, yield attributes, total chlorophyll, nucleic acid content, enzymatic and non-enzymatic antioxidants, oxidative damage, lipid peroxidation, copper and silicon content, and fatty acid composition. The results showed that Cu (100 and 200 µM) inhibited plant growth and increased Cu accumulation in soil, roots, and shoots. Cu significantly decreased the yield attributes, total chlorophyll by 9.5% and 22% in Sakha 1 and by 22.5% and 29% in Sakha 2, and enhanced the accumulation of non-enzymatic (tocopherol), enzymatic antioxidants such as superoxide dismnutase, peroxidase, ascorbate peroxidase and catalase) and secondary metabolites (phenol and flavonoids). The DNA content significantly decreased in stressed plants with 100 and 200 µM Cu about 22% and 44%, respectively, in Sakha 1 and about 21.6% and 34.7% in Sakha 2, and RNA content also decreased by about 20% and 29%, respectively, in Sakha 1 and by about 2% and 13% in Sakha 2 compared to the control plant. Furthermore, Cu stress accelerated the generation of reactive oxygen species (ROS), such as hydrogen peroxide (H2O2) and induced cellular oxidative injury caused by lipid peroxidation. In parallel, Cu induced a change in the composition of fatty acids, resulting in lower unsaturated fatty acid levels and increased saturated fatty acids (increased saturation/unsaturation ratio for both genotypes). Treating the flax plants with irrigation three times with Si protected the plants from Cu toxicity. Si treatment decreased the uptake and the transport of Cu to the shoots and harvested seeds and promoted plant growth, yield attributes, and antioxidant defense systems by reducing Cu accumulation, lipid peroxidation, and the generation of H2O2. In addition, the alleviation of Cu toxicity correlated with increased Si accumulation in the roots and shoots. In conclusion, Si can be used to improve the resistance of flax plants to Cu toxicity by up-regulating the antioxidant defense system such as superoxide dismutase (SOD), peroxidase (POD), ascorbate peroxidase (APX) and catalase (CAT) and decreasing the oxidative damage caused by reactive oxygen species (ROS).

ACS Style

Hossam El-Beltagi; Mahmoud Sofy; Mohammed Aldaej; Heba Mohamed. Silicon Alleviates Copper Toxicity in Flax Plants by Up-Regulating Antioxidant Defense and Secondary Metabolites and Decreasing Oxidative Damage. Sustainability 2020, 12, 4732 .

AMA Style

Hossam El-Beltagi, Mahmoud Sofy, Mohammed Aldaej, Heba Mohamed. Silicon Alleviates Copper Toxicity in Flax Plants by Up-Regulating Antioxidant Defense and Secondary Metabolites and Decreasing Oxidative Damage. Sustainability. 2020; 12 (11):4732.

Chicago/Turabian Style

Hossam El-Beltagi; Mahmoud Sofy; Mohammed Aldaej; Heba Mohamed. 2020. "Silicon Alleviates Copper Toxicity in Flax Plants by Up-Regulating Antioxidant Defense and Secondary Metabolites and Decreasing Oxidative Damage." Sustainability 12, no. 11: 4732.

Journal article
Published: 17 May 2020 in Molecules
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Cucumber mosaic cucumovirus (CMV) is a deadly plant virus that results in crop-yield losses with serious economic consequences. In recent years, environmentally friendly components have been developed to manage crop diseases as alternatives to chemical pesticides, including the use of natural compounds such as glycine betaine (GB) and chitosan (CHT), either alone or in combination. In the present study, the leaves of the cucumber plants were foliar-sprayed with GB and CHT—either alone or in combination—to evaluate their ability to induce resistance against CMV. The results showed a significant reduction in disease severity and CMV accumulation in plants treated with GB and CHT, either alone or in combination, compared to untreated plants (challenge control). In every treatment, growth indices, leaf chlorophylls content, phytohormones (i.e., indole acetic acid, gibberellic acid, salicylic acid and jasmonic acid), endogenous osmoprotectants (i.e., proline, soluble sugars and glycine betaine), non-enzymatic antioxidants (i.e., ascorbic acid, glutathione and phenols) and enzymatic antioxidants (i.e., superoxide dismutase, peroxidase, polyphenol oxidase, catalase, lipoxygenase, ascorbate peroxidase, glutathione reductase, chitinase and β-1,3 glucanase) of virus-infected plants were significantly increased. On the other hand, malondialdehyde and abscisic acid contents have been significantly reduced. Based on a gene expression study, all treated plants exhibited increased expression levels of some regulatory defense genes such as PR1 and PAL1. In conclusion, the combination of GB and CHT is the most effective treatment in alleviated virus infection. To our knowledge, this is the first report to demonstrate the induction of systemic resistance against CMV by using GB.

ACS Style

Ahmed R. Sofy; Rehab A. Dawoud; Mahmoud R. Sofy; Heba I. Mohamed; Ahmed A. Hmed; Noha K. El-Dougdoug. Improving Regulation of Enzymatic and Non-Enzymatic Antioxidants and Stress-Related Gene Stimulation in Cucumber mosaic cucumovirus-Infected Cucumber Plants Treated with Glycine Betaine, Chitosan and Combination. Molecules 2020, 25, 2341 .

AMA Style

Ahmed R. Sofy, Rehab A. Dawoud, Mahmoud R. Sofy, Heba I. Mohamed, Ahmed A. Hmed, Noha K. El-Dougdoug. Improving Regulation of Enzymatic and Non-Enzymatic Antioxidants and Stress-Related Gene Stimulation in Cucumber mosaic cucumovirus-Infected Cucumber Plants Treated with Glycine Betaine, Chitosan and Combination. Molecules. 2020; 25 (10):2341.

Chicago/Turabian Style

Ahmed R. Sofy; Rehab A. Dawoud; Mahmoud R. Sofy; Heba I. Mohamed; Ahmed A. Hmed; Noha K. El-Dougdoug. 2020. "Improving Regulation of Enzymatic and Non-Enzymatic Antioxidants and Stress-Related Gene Stimulation in Cucumber mosaic cucumovirus-Infected Cucumber Plants Treated with Glycine Betaine, Chitosan and Combination." Molecules 25, no. 10: 2341.

Journal article
Published: 14 May 2020 in Agronomy
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Lead (Pb) is a toxic heavy metal (HM) that harms plant growth and productivity. Phytohormones, such as jasmonic acid (JA) and salicylic acid (SA), and osmoprotectants, such as proline (Pro), play an important role in the physiological and biochemical processes of plants. We investigated the effect of exogenous applications of JA, SA, Pro, and their combination on Pb-stress tolerance in maize as well as their effect on physiological, biochemical, and yield traits. Pb exposure severely affected maize plants, reducing growth, yield, photosynthetic pigments, and mineral (nitrogen, phosphorus, and potassium) nutrients, as well as enhancing electrolyte leakage (EL), malondialdehyde (MDA) accumulation, osmolytes, and non-enzymatic and enzymatic antioxidants. The application of JA, SA, Pro, and their combination enhanced plant growth and induced pigment biosynthesis, and decreased EL, MDA accumulation, and Pb concentration. All treatments enhanced Pro and total soluble sugar production, glutathione activity, ascorbic acid, phenol, superoxide dismutase, catalase, peroxidase, and mineral nutrients. JA, SA, and Pro application improved physiological processes directly or indirectly, thereby enhancing the ability of maize plants to overcome oxidative damage caused by Pb toxicity. The combination of JA, SA, and Pro was the most efficient treatment for maize plant growth and development, eliminating the negative consequences of Pb stress.

ACS Style

Mahmoud R. Sofy; Mahmoud F. Seleiman; Bushra A. Alhammad; Basmah M. Alharbi; Heba I. Mohamed. Minimizing Adverse Effects of Pb on Maize Plants by Combined Treatment with Jasmonic, Salicylic Acids and Proline. Agronomy 2020, 10, 699 .

AMA Style

Mahmoud R. Sofy, Mahmoud F. Seleiman, Bushra A. Alhammad, Basmah M. Alharbi, Heba I. Mohamed. Minimizing Adverse Effects of Pb on Maize Plants by Combined Treatment with Jasmonic, Salicylic Acids and Proline. Agronomy. 2020; 10 (5):699.

Chicago/Turabian Style

Mahmoud R. Sofy; Mahmoud F. Seleiman; Bushra A. Alhammad; Basmah M. Alharbi; Heba I. Mohamed. 2020. "Minimizing Adverse Effects of Pb on Maize Plants by Combined Treatment with Jasmonic, Salicylic Acids and Proline." Agronomy 10, no. 5: 699.

Journal article
Published: 08 April 2020 in Molecules
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In recent years, the harmful effects of drought stress have been be mitigated by using bioactive compounds such as antioxidants and osmolytes. In this research, pot experiments were carried out to investigate the effects of ascorbic acid, glutathione and proline on alleviating the harmful effect of drought stress in chickpea plants during season 2017. Chickpea plant seeds were soaked in ascorbic acid (0.75 mM), glutathione (0.75 mM), proline (0.75 mM) singly and/or in sequence combinations for 4 h and then planted in pots. The pots were irrigated with water after seven days (to serve as control), after 14 days (moderate drought stress) and after 28 days (severe drought stress). The sequence combination of antioxidants and proline under drought stress has not been studied yet. The results showed significantly decreased in plant growth, yielding characteristics, photosynthetic pigments and soluble protein content in response to moderate and severe drought stress. Moreover, treatment with antioxidants caused increment the antioxidant enzyme activity, non-enzymatic antioxidant (ascorbic acid and glutathione) contents and endogenous proline in stressed and unstressed plants. In conclusion, The sequence combination of antioxidants and proline caused improvement in plant growth under drought stress by up-regulating the antioxidant defense system and osmolyte synthesis.

ACS Style

Hossam S. El-Beltagi; Heba I. Mohamed; Mahmoud R. Sofy. Role of Ascorbic acid, Glutathione and Proline Applied as Singly or in Sequence Combination in Improving Chickpea Plant through Physiological Change and Antioxidant Defense under Different Levels of Irrigation Intervals. Molecules 2020, 25, 1702 .

AMA Style

Hossam S. El-Beltagi, Heba I. Mohamed, Mahmoud R. Sofy. Role of Ascorbic acid, Glutathione and Proline Applied as Singly or in Sequence Combination in Improving Chickpea Plant through Physiological Change and Antioxidant Defense under Different Levels of Irrigation Intervals. Molecules. 2020; 25 (7):1702.

Chicago/Turabian Style

Hossam S. El-Beltagi; Heba I. Mohamed; Mahmoud R. Sofy. 2020. "Role of Ascorbic acid, Glutathione and Proline Applied as Singly or in Sequence Combination in Improving Chickpea Plant through Physiological Change and Antioxidant Defense under Different Levels of Irrigation Intervals." Molecules 25, no. 7: 1702.