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Fatima A, Kataria S, Jain M, Prajapati R, Mahawar L. Synchrotron tomography of magnetoprimed soybean plant root system architecture grown in arsenic-polluted soil. FRONTIERS IN PLANT SCIENCE 2024; 15:1391846. [PMID: 39015294 PMCID: PMC11249557 DOI: 10.3389/fpls.2024.1391846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 05/30/2024] [Indexed: 07/18/2024]
Abstract
The present study evaluated the repercussions of magnetopriming on the root system architecture of soybean plants subjected to arsenic toxicity using synchrotron radiation source based micro-computed tomography (SR-µCT). This will be used evey where as abbreviation for the technique for three-dimensional imaging. Seeds of soybean were exposed to the static magnetic field (SMF) of strength (200 mT) for 1h prior to sowing. Magnetoprimed and non-primed seeds were grown for 1 month in a soil-sand mixture containing four different levels of sodium arsenate (0, 5, 10, and 50 mg As kg-1 soil). The results showed that arsenic adversely affects the root growth in non-primed plants by reducing their root length, root biomass, root hair, size and number of root nodules, where the damaging effect of As was observed maximum at higher concentrations (10 and 50 mg As kg-1 soil). However, a significant improvement in root morphology was detected in magnetoprimed plants where SMF pretreatment enhanced the root length, root biomass, pore diameter of cortical cells, root hair formation, lateral roots branching, and size of root nodules and girth of primary roots. Qualitative analysis of x-ray micro-CT images showed that arsenic toxicity damaged the epidermal and cortical layers of the root as well as reduced the pore diameter of the cortical cells. However, the diameter of cortical cells pores in magnetoprimed plants was observed higher as compared to plants emerged from non-primed seeds at all level of As toxicity. Thus, the study suggested that magnetopriming has the potential to attenuate the toxic effect of As and could be employed as a pre-sowing treatment to reduce the phytotoxic effects of metal ions in plants by improving root architecture and root tolerance index. This study is the very first exploration of the potential benefits of magnetopriming in mitigating the toxicity of metals (As) in plant roots utilizing the micro-CT technique.
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Affiliation(s)
- Anis Fatima
- Technical Physics Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Sunita Kataria
- School of Biochemistry, Devi AhilyaVishwavidyalaya, Indore, MP, India
- Department of Plant Physiology, Faculty of Agrobiology and Food Resource, Slovak University of Agriculture, Nitra, Slovakia
| | - Meeta Jain
- School of Biochemistry, Devi AhilyaVishwavidyalaya, Indore, MP, India
| | | | - Lovely Mahawar
- Department of Plant Physiology, Faculty of Agrobiology and Food Resource, Slovak University of Agriculture, Nitra, Slovakia
- Department of Plant Physiology, Umeå Plant Science Centre, Umeå University, Umeå, Sweden
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Kaya C, Uğurlar F, Seth CS. Sodium nitroprusside modulates oxidative and nitrosative processes in Lycopersicum esculentum L. under drought stress. PLANT CELL REPORTS 2024; 43:152. [PMID: 38806834 PMCID: PMC11133051 DOI: 10.1007/s00299-024-03238-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 05/13/2024] [Indexed: 05/30/2024]
Abstract
KEY MESSAGE Sodium nitroprusside mediates drought stress responses in tomatoes by modulating nitrosative and oxidative pathways, highlighting the interplay between nitric oxide, hydrogen sulfide, and antioxidant systems for enhanced drought tolerance. While nitric oxide (NO), a signalling molecule, enhances plant tolerance to abiotic stresses, its precise contribution to improving tomato tolerance to drought stress (DS) through modulating oxide-nitrosative processes is not yet fully understood. We aimed to examine the interaction of NO and nitrosative signaling, revealing how sodium nitroprusside (SNP) could mitigate the effects of DS on tomatoes. DS-seedlings endured 12% polyethylene glycol (PEG) in a 10% nutrient solution (NS) for 2 days, then transitioned to half-strength NS for 10 days alongside control plants. DS reduced total plant dry weight, chlorophyll a and b, Fv/Fm, leaf water potential (ΨI), and relative water content, but improved hydrogen peroxide (H2O2), proline, and NO content. The SNP reduced the DS-induced H2O2 generation by reducing thiol (-SH) and the carbonyl (-CO) groups. SNP increased not only NO but also the activity of L-cysteine desulfhydrase (L-DES), leading to the generation of H2S. Decreases in S-nitrosoglutathione reductase (GSNOR) and NADPH oxidase (NOX) suggest a potential regulatory mechanism in which S-nitrosylation [formation of S-nitrosothiol (SNO)] may influence protein function and signaling pathways during DS. Moreover, SNP improved ascorbate (AsA) and glutathione (GSH) and reduced oxidized glutathione (GSSG) levels in tomato plants under drought. Furthermore, the interaction of NO and H2S, mediated by L-DES activity, may serve as a vital cross-talk mechanism impacting plant responses to DS. Understanding these signaling interactions is crucial for developing innovative drought-tolerance strategies in crops.
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Affiliation(s)
- Cengiz Kaya
- Soil Science and Plant Nutrition Department, Harran University, Şanlıurfa, 63200, Turkey.
| | - Ferhat Uğurlar
- Soil Science and Plant Nutrition Department, Harran University, Şanlıurfa, 63200, Turkey
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Samant SB, Manbir, Rekha, Swain J, Singh P, Kumari A, Gupta KJ. Measurement of Reactive Oxygen Species and Nitric Oxide from Tomato Plants in Response to Abiotic and Biotic Stresses. Methods Mol Biol 2024; 2832:183-203. [PMID: 38869796 DOI: 10.1007/978-1-0716-3973-3_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Nitric oxide (NO) is a free radical molecule that has been known to influence several cellular processes such as plant growth, development, and stress responses. NO together with reactive oxygen species (ROS) play a role in signaling process. Due to extremely low half-life of these radicals in cellular environment, it is often difficult to precisely monitor them. Each method has some advantages and disadvantages; hence, it is important to measure using multiple methods. To interpret the role of each signaling molecule in numerous biological processes, sensitive and focused methods must be used. In addition to this complexity, these Reactive Oxygen Species (ROS) and NO react with each other leads to nitro-oxidative stress in plants. Using tomato as a model system here, we demonstrate stepwise protocols for measurement of NO by chemiluminescence, DAF fluorescence, nitrosative stress by western blot, and ROS measurement by NBT and DAB under stress conditions such as osmotic stress and Botrytis infection. While describing methods, we also emphasized on benefits, drawbacks, and broader applications of these methods.
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Affiliation(s)
| | - Manbir
- National Institute of Plant Genome Research, New Delhi, India
| | - Rekha
- National Institute of Plant Genome Research, New Delhi, India
| | - Jagannath Swain
- National Institute of Plant Genome Research, New Delhi, India
| | - Pooja Singh
- National Institute of Plant Genome Research, New Delhi, India
| | - Aprajita Kumari
- National Institute of Plant Genome Research, New Delhi, India
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Kaya C, Ugurlar F, Ashraf M, Alyemeni MN, Moustakas M, Ahmad P. 5-Aminolevulinic Acid Induces Chromium [Cr(VI)] Tolerance in Tomatoes by Alleviating Oxidative Damage and Protecting Photosystem II: A Mechanistic Approach. PLANTS (BASEL, SWITZERLAND) 2023; 12:502. [PMID: 36771587 PMCID: PMC9920640 DOI: 10.3390/plants12030502] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/24/2022] [Accepted: 01/17/2023] [Indexed: 05/13/2023]
Abstract
Chromium [Cr(VI)] pollution is a major environmental risk, reducing crop yields. 5-Aminolevunic acid (5-ALA) considerably improves plant abiotic stress tolerance by inducing hydrogen peroxide (H2O2) and nitric oxide (NO) signalling. Our investigation aimed to uncover the mechanism of tomato tolerance to Cr(VI) toxicity through the foliar application of 5-ALA for three days, fifteen days before Cr treatment. Chromium alone decreased plant biomass and photosynthetic pigments, but increased oxidative stress markers, i.e., H2O2 and lipid peroxidation (as MDA equivalent). Electrolyte leakage (EL), NO, nitrate reductase (NR), phytochelatins (PCs), glutathione (GSH), and enzymatic and non-enzymatic antioxidants were also increased. Foliar application of 5-ALA before Cr treatment improved plant growth and photosynthetic pigments, diminished H2O2, MDA content, and EL, and resulted in additional enhancements of enzymatic and non-enzymatic antioxidants, NR activity, and NO synthesis. In Cr-treated tomato seedlings, 5-ALA enhanced GSH and PCs, which modulated Cr sequestration to make it nontoxic. 5-ALA-induced Cr tolerance was further enhanced by sodium nitroprusside (SNP), a NO donor. When sodium tungstate (ST), a NR inhibitor, was supplied together with 5-ALA to Cr-treated plants, it eliminated the beneficial effects of 5-ALA by decreasing NR activity and NO synthesis, while the addition of SNP inverted the adverse effects of ST. We conclude that the mechanism by which 5-ALA induced Cr tolerance in tomato seedlings is mediated by NR-generated NO. Thus, NR and NO are twin players, reducing Cr toxicity in tomato plants via antioxidant signalling cascades.
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Affiliation(s)
- Cengiz Kaya
- Soil Science and Plant Nutrition Department, Harran University, 63200 Sanliurfa, Turkey
| | - Ferhat Ugurlar
- Soil Science and Plant Nutrition Department, Harran University, 63200 Sanliurfa, Turkey
| | - Muhammed Ashraf
- Institute of Molecular Biology and Biotechnology, The University of Lahore, Lahore 54600, Pakistan
| | | | - Michael Moustakas
- Department of Botany, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Parvaiz Ahmad
- Department of Botany, GDC, Jammu and Kashmir, Pulwama 192301, India
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Pawełek A, Owusu SA, Cecchetti D, Zielińska A, Wyszkowska J. What evidence exists of crop plants response to exposure to static magnetic and electromagnetic fields? A systematic map protocol. ENVIRONMENTAL EVIDENCE 2022; 11:37. [PMID: 39294714 PMCID: PMC11378831 DOI: 10.1186/s13750-022-00292-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 11/22/2022] [Indexed: 09/21/2024]
Abstract
BACKGROUND Increasing demand for food and concerns over the environmental impact of agriculture has prompted the search for alternatives to many conventional farming practices. Reports on exposing seeds and plants at various developmental stages to static magnetic field (SMF) and non-ionizing electromagnetic fields (EMF) as a form of priming indicate some positive effects on seed germinability, growth rate, resistance to stress conditions, and improved yield. However, there exist some inconsistent reported treatment protocols and contradictory study outcomes that make it difficult to draw objective conclusions on the potential use of SMF and EMF as sustainable alternatives to improving crop growth and yield. It is equally essential to understand any adverse effects of exposing plants to SMF and EMF considering the abundance of their sources in the environment. In order to provide a more coherent overview of how plants respond to exposure to SMF and EMF not only in their observed effects of agronomic importance but also in the mechanisms of action of SMF and EMF in plant cells, we prepare a systematic map. METHODS Literature will be identified by searching six bibliographic databases and three web-based search engines using terms obtained from the population, exposure, and outcome parameters of the research question. Primary research published in peer-reviewed journals and grey literature will be the source for the evidence map. Studies eligible for inclusion may involve: food crops and related research model plants exposed to SMF or non-ionizing EMF; treatment at all plant developmental stages excluding post-harvest improvement of food crops; and the presence of control groups. Eligible literature will be screened at the title, abstract, and full text levels. The validity of studies will not be critically appraised for the evidence map. A process of double extraction and coding of relevant information from eligible literature will be conducted. Within the evidence map, relevant data will be presented in the forms of text, graphs, tables, and figures. This will illustrate research trends, bring clarity to the evidence base concerning clusters of sufficient findings and areas of significant gaps, and inform stakeholders in decisions concerning research planning and policy formulation.
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Affiliation(s)
- Agnieszka Pawełek
- Department of Plant Physiology and Biotechnology, Institute of Biology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska Street 1, 87-100, Toruń, Poland.
| | - Samuel Acheaw Owusu
- Faculty of Philosophy and Social Sciences, Nicolaus Copernicus University, Lwowska Street 1, 87-100, Toruń, Poland
| | - Daniele Cecchetti
- Department of Plant Physiology and Biotechnology, Institute of Biology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska Street 1, 87-100, Toruń, Poland
| | - Adrianna Zielińska
- Department of Plant Physiology and Biotechnology, Institute of Biology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska Street 1, 87-100, Toruń, Poland
| | - Joanna Wyszkowska
- Department of Animal Physiology and Neurobiology, Institute of Biology, Faculty of Biological and Veterinary Sciences, Nicolaus Copernicus University, Lwowska Street 1, 87-100, Toruń, Poland
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Medrano-Macías J, Flores-Gallegos AC, Nava-Reyna E, Morales I, Tortella G, Solís-Gaona S, Benavides-Mendoza A. Reactive Oxygen, Nitrogen, and Sulfur Species (RONSS) as a Metabolic Cluster for Signaling and Biostimulation of Plants: An Overview. PLANTS (BASEL, SWITZERLAND) 2022; 11:3203. [PMID: 36501243 PMCID: PMC9740111 DOI: 10.3390/plants11233203] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 06/17/2023]
Abstract
This review highlights the relationship between the metabolism of reactive oxygen species (ROS), reactive nitrogen species (RNS), and H2S-reactive sulfur species (RSS). These three metabolic pathways, collectively termed reactive oxygen, nitrogen, and sulfur species (RONSS), constitute a conglomerate of reactions that function as an energy dissipation mechanism, in addition to allowing environmental signals to be transduced into cellular information. This information, in the form of proteins with posttranslational modifications or signaling metabolites derived from RONSS, serves as an inducer of many processes for redoxtasis and metabolic adjustment to the changing environmental conditions to which plants are subjected. Although it is thought that the role of reactive chemical species was originally energy dissipation, during evolution they seem to form a cluster of RONSS that, in addition to dissipating excess excitation potential or reducing potential, also fulfils essential signaling functions that play a vital role in the stress acclimation of plants. Signaling occurs by synthesizing many biomolecules that modify the activity of transcription factors and through modifications in thiol groups of enzymes. The result is a series of adjustments in plants' gene expression, biochemistry, and physiology. Therefore, we present an overview of the synthesis and functions of the RONSS, considering the importance and implications in agronomic management, particularly on the biostimulation of crops.
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Affiliation(s)
- Julia Medrano-Macías
- Department of Horticulture, Universidad Autónoma Agraria Antonio Narro, Saltillo 25315, Mexico
| | - Adriana Carolina Flores-Gallegos
- Bioprocesses and Bioproducts Research Group, Food Research Department, School of Chemistry, Universidad Autónoma de Coahuila, Saltillo 25280, Mexico
| | - Erika Nava-Reyna
- Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, National Center for Disciplinary Research in Water, Soil, Plants and Atmosphere Relations, Gomez Palacio 35150, Mexico
| | - Isidro Morales
- Instituto Politécnico Nacional, Interdisciplinary Research Center for Regional Integral Development, Oaxaca 71230, Mexico
| | - Gonzalo Tortella
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente (CIBAMA-BIOREN), Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco 4811230, Chile
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Saletnik B, Saletnik A, Słysz E, Zaguła G, Bajcar M, Puchalska-Sarna A, Puchalski C. The Static Magnetic Field Regulates the Structure, Biochemical Activity, and Gene Expression of Plants. Molecules 2022; 27:molecules27185823. [PMID: 36144557 PMCID: PMC9506020 DOI: 10.3390/molecules27185823] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 09/02/2022] [Accepted: 09/03/2022] [Indexed: 01/09/2023] Open
Abstract
The purpose of this paper is to review the scientific results and summarise the emerging topic of the effects of statistic magnetic field on the structure, biochemical activity, and gene expression of plants. The literature on the subject reports a wide range of possibilities regarding the use of the magnetic field to modify the properties of plant cells. MFs have a significant impact on the photosynthesis efficiency of the biomass and vigour accumulation indexes. Treating plants with SMFs accelerates the formation and accumulation of reactive oxygen species. At the same time, the influence of MFs causes the high activity of antioxidant enzymes, which reduces oxidative stress. SMFs have a strong influence on the shape of the cell and the structure of the cell membrane, thus increasing their permeability and influencing the various activities of the metabolic pathways. The use of magnetic treatments on plants causes a higher content of proteins, carbohydrates, soluble and reducing sugars, and in some cases, lipids and fatty acid composition and influences the uptake of macro- and microelements and different levels of gene expression. In this study, the effect of MFs was considered as a combination of MF intensity and time exposure, for different varieties and plant species. The following article shows the wide-ranging possibilities of applying magnetic fields to the dynamics of changes in the life processes and structures of plants. Thus far, the magnetic field is not widely used in agricultural practice. The current knowledge about the influence of MFs on plant cells is still insufficient. It is, therefore, necessary to carry out detailed research for a more in-depth understanding of the possibilities of modifying the properties of plant cells and achieving the desired effects by means of a magnetic field.
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Affiliation(s)
- Bogdan Saletnik
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszow University, Ćwiklińskiej 2D, 35-601 Rzeszow, Poland
- Correspondence:
| | - Aneta Saletnik
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszow University, Ćwiklińskiej 2D, 35-601 Rzeszow, Poland
| | - Ewelina Słysz
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszow University, Ćwiklińskiej 2D, 35-601 Rzeszow, Poland
| | - Grzegorz Zaguła
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszow University, Ćwiklińskiej 2D, 35-601 Rzeszow, Poland
| | - Marcin Bajcar
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszow University, Ćwiklińskiej 2D, 35-601 Rzeszow, Poland
| | - Anna Puchalska-Sarna
- Laboratory of Physiotherapy in Developmental Disorders, Institute of Health Sciences, College of Medical Sciences, Rzeszow University, Al. mjr. W. Kopisto 2a, 35-959 Rzeszow, Poland
| | - Czesław Puchalski
- Department of Bioenergetics, Food Analysis and Microbiology, Institute of Food Technology and Nutrition, College of Natural Science, Rzeszow University, Ćwiklińskiej 2D, 35-601 Rzeszow, Poland
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Magnetopriming Actuates Nitric Oxide Synthesis to Regulate Phytohormones for Improving Germination of Soybean Seeds under Salt Stress. Cells 2022; 11:cells11142174. [PMID: 35883617 PMCID: PMC9322440 DOI: 10.3390/cells11142174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 06/27/2022] [Accepted: 07/06/2022] [Indexed: 12/17/2022] Open
Abstract
In this study, the role of the signalling molecule nitric oxide (NO) in magnetopriming-mediated induction of salinity tolerance in soybean seeds is established. The cross-talk of NO with germination-related hormones gibberellic acid (GA), abscisic acid (ABA) and auxin (IAA) for their ability to reduce the Na+/K+ ratio in the seeds germinating under salinity is highlighted. Salt tolerance index was significantly high for seedlings emerging from magnetoprimed seeds and sodium nitroprusside (SNP, NO-donor) treatment. The NO and superoxide (O2•−) levels were also increased in both of these treatments under non-saline and saline conditions. NO generation through nitrate reductase (NR) and nitric oxide synthase-like (NOS-like) pathways indicated the major contribution of NO from the NR-catalysed reaction. The relative expression of genes involved in the NO biosynthetic pathways reiterated the indulgence of NR in NO in magnetoprimed seeds, as a 3.86-fold increase in expression was observed over unprimed seeds under salinity. A 23.26-fold increase in relative expression of NR genes by the NO donor (SNP) was observed under salinity, while the NR inhibitor (sodium tungstate, ST) caused maximum reduction in expression of NR genes as compared to other inhibitors [L-NAME (N(G)-nitro-L-arginine methyl ester; inhibitor of nitric oxide synthase-like enzyme) and DPI (diphenylene iodonium; NADPH oxidase inhibitor)]. The ratio of ABA/GA and IAA/GA decreased in magnetoprimed and NO donor-treated seeds, suggesting homeostasis amongst hormones during germination under salinity. The magnetoprimed seeds showed low Na+/K+ ratio in all treatments irrespective of NO inhibitors. Altogether, our results indicate that a balance of ABA, GA and IAA is maintained by the signalling molecule NO in magnetoprimed seeds which lowers the Na+/K+ ratio to offset the adverse effects of salinity in soybean seeds.
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Yi Y, Peng Y, Song T, Lu S, Teng Z, Zheng Q, Zhao F, Meng S, Liu B, Peng Y, Chen G, Zhang J, Ye N. NLP2-NR Module Associated NO Is Involved in Regulating Seed Germination in Rice under Salt Stress. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11060795. [PMID: 35336677 PMCID: PMC8953764 DOI: 10.3390/plants11060795] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/12/2022] [Accepted: 03/14/2022] [Indexed: 05/24/2023]
Abstract
Salt stress has the most severe impact on plant growth and development, including seed germination. However, little is known about the mechanism of NR (nitrate reductase)-associated nitric oxide (NO) regulates salt tolerance during seed germination in rice. Herein, we shown that inhibition of seed germination by salt stress was significantly impaired by sodium nitroferricyanide (SNP), a NO donor. Then a triple mutant, nr1/nr2/nr3, was generated. Results shown that germination of triple mutants were delayed and were much more sensitive to salt stress than WT plant, which can be rescued by application of SNP. qPCR analysis revealed that expressions of abscisic acid (ABA) catabolism gene, OsABA8ox1, was suppressed in triple mutants under salt stress, resulting in an elevated ABA content. Similar to SNP, application of nitrate also rescued seed germination under salt stress, which, however, was blocked in the triple mutants. Further study revealed that a nitrate responsive transcript factor, OsNLP2, was induced by salt stress, which thus up-regulates the expression of OsNRs and NR activity, resulting in promoted salt tolerance during seed germination. In addition, nitrate-mediated salt tolerance was impaired in mutant of aba8ox1, a target gene for NLP2. Transient trans-activation assays further revealed NLP2 can significantly activate the expression of OsABA8ox1 and OsNR1, suggesting that NLP2 activates expression of ABA catabolism gene directly or indirectly via NR-associated NO. Taken together, our results demonstrate that NLP2-NR associated NO was involved in salt response by increasing ABA catabolism during seed germination and highlight the importance of NO for stress tolerance of plants.
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Affiliation(s)
- Yake Yi
- College of Agriculture, Hunan Agricultural University, Changsha 410128, China; (Y.Y.); (Y.P.); (S.L.); (Z.T.); (Q.Z.); (F.Z.); (S.M.); (B.L.); (Y.P.)
| | - Yaqiong Peng
- College of Agriculture, Hunan Agricultural University, Changsha 410128, China; (Y.Y.); (Y.P.); (S.L.); (Z.T.); (Q.Z.); (F.Z.); (S.M.); (B.L.); (Y.P.)
| | - Tao Song
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China;
| | - Siqiong Lu
- College of Agriculture, Hunan Agricultural University, Changsha 410128, China; (Y.Y.); (Y.P.); (S.L.); (Z.T.); (Q.Z.); (F.Z.); (S.M.); (B.L.); (Y.P.)
| | - Zhenning Teng
- College of Agriculture, Hunan Agricultural University, Changsha 410128, China; (Y.Y.); (Y.P.); (S.L.); (Z.T.); (Q.Z.); (F.Z.); (S.M.); (B.L.); (Y.P.)
| | - Qin Zheng
- College of Agriculture, Hunan Agricultural University, Changsha 410128, China; (Y.Y.); (Y.P.); (S.L.); (Z.T.); (Q.Z.); (F.Z.); (S.M.); (B.L.); (Y.P.)
| | - Fankai Zhao
- College of Agriculture, Hunan Agricultural University, Changsha 410128, China; (Y.Y.); (Y.P.); (S.L.); (Z.T.); (Q.Z.); (F.Z.); (S.M.); (B.L.); (Y.P.)
| | - Shuan Meng
- College of Agriculture, Hunan Agricultural University, Changsha 410128, China; (Y.Y.); (Y.P.); (S.L.); (Z.T.); (Q.Z.); (F.Z.); (S.M.); (B.L.); (Y.P.)
| | - Bohang Liu
- College of Agriculture, Hunan Agricultural University, Changsha 410128, China; (Y.Y.); (Y.P.); (S.L.); (Z.T.); (Q.Z.); (F.Z.); (S.M.); (B.L.); (Y.P.)
| | - Yan Peng
- College of Agriculture, Hunan Agricultural University, Changsha 410128, China; (Y.Y.); (Y.P.); (S.L.); (Z.T.); (Q.Z.); (F.Z.); (S.M.); (B.L.); (Y.P.)
| | - Guanghui Chen
- College of Agriculture, Hunan Agricultural University, Changsha 410128, China; (Y.Y.); (Y.P.); (S.L.); (Z.T.); (Q.Z.); (F.Z.); (S.M.); (B.L.); (Y.P.)
| | - Jianhua Zhang
- Department of Biology, Hong Kong Baptist University, Kowloon, Hong Kong 999077, China
- School of Life Sciences, State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong 999077, China
| | - Nenghui Ye
- College of Agriculture, Hunan Agricultural University, Changsha 410128, China; (Y.Y.); (Y.P.); (S.L.); (Z.T.); (Q.Z.); (F.Z.); (S.M.); (B.L.); (Y.P.)
- Hunan Provincial Key Laboratory of Rice Stress Biology, Hunan Agricultural University, Changsha 410128, China
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Singh P, Kumari A, Gupta KJ. Alternative oxidase plays a role in minimizing ROS and RNS produced under salinity stress in Arabidopsis thaliana. PHYSIOLOGIA PLANTARUM 2022; 174:e13649. [PMID: 35149995 DOI: 10.1111/ppl.13649] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 02/02/2022] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
Under stress conditions, the overproduction of different reactive oxygen species (ROS) and reactive nitrogen species (RNS) causes imbalance in the redox homeostasis of the cell leading to nitro-oxidative stress in plants. Alternative oxidase (AOX) is a conserving terminal oxidase of the mitochondrial electron transport chain, which can minimize the ROS. Still, the role of AOX in the regulation of RNS during nitro-oxidative stress imposed by salinity stress is not known. Here, we investigated the role of AOX in minimizing ROS and RNS induced by 150 mM NaCl in Arabidopsis using transgenic plants overexpressing (AOX OE) and antisense lines (AOX AS) of AOX. Imposing NaCl treatment leads to a 4-fold enhanced expression of AOX accompanied by enhanced AOX capacity in WT Col-0. Further AOX-OE seedlings displayed enhanced growth compared with the AOX-AS line under stress. Examination of NO levels by DAF-FM fluorescence and chemiluminescence revealed that AOX overexpression leads to reduced levels of NO. The total NR activity was elevated under NaCl, but no significant change was observed in wild-type (WT), AOX OE, and AS lines. The total ROS, superoxide, H2 O2 levels, and lipid peroxidation were higher in the AOX-AS line than in WT and AOX-OE lines. The peroxynitrite levels were also higher in the AOX-AS line than in WT and AOX-OE lines; further, the expression of antioxidant genes was elevated in AOX-AS. Taken together, our results suggest that AOX plays an important role in the mitigation of ROS and RNS levels and enhances plant growth, thus providing tolerance against nitro-oxidative stress exerted by NaCl.
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Affiliation(s)
- Pooja Singh
- National Institute for Plant Genome Research, New Delhi, India
| | - Aprajita Kumari
- National Institute for Plant Genome Research, New Delhi, India
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Fatima A, Kataria S, Prajapati R, Jain M, Agrawal AK, Singh B, Kashyap Y, Tripathi DK, Singh VP, Gadre R. Magnetopriming effects on arsenic stress-induced morphological and physiological variations in soybean involving synchrotron imaging. PHYSIOLOGIA PLANTARUM 2021; 173:88-99. [PMID: 32915504 DOI: 10.1111/ppl.13211] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/26/2020] [Accepted: 09/06/2020] [Indexed: 06/11/2023]
Abstract
This study investigates the effect of static magnetic field (SMF) pre-treatment in ameliorating arsenic (As) toxicity in soybean plants in relation to growth, photosynthesis and water transport through leaf venation. Soybean (Glycine max variety JS-9560) seeds pre-treated with SMF (200 mT for 1 h) were grown in four levels of arsenate-polluted soil (As(V); 0, 5, 10 and 50 mg kg-1 ) in order to find out the impact of magnetopriming on plant tolerance against As toxicity. Quantitative image analysis of soybean leaf venation showed a narrowing in the width of midrib with increasing As(V) contamination in non-primed seeds. The morphological variations are also supported by the physiological parameters such as reduction in efficiency of photosystem II, plant performance index, stomatal conductance and photosynthetic rate in the presence of As(V) for non-primed seeds. However, remarkable increase was observed in all the measured parameters by SMF pre-treatment at all the concentrations of As(V) used. Even for the highest concentration of As(V) (50 mg kg-1 soil), SMF pre-treatment caused significant enhancement in plant height (40%), area of third trifoliate leaves (40%), along with increase in width of the midrib (17%) and minor vein (13%), contributing to increase in the water uptake, that resulted in higher primary photochemistry of PSII (12%), performance index (50%), stomatal conductance (57%) and photosynthetic rate (33%) as compared to non-primed ones. Consequently, magnetopriming of dry seeds can be effectively used as pretreatment for reduction of As toxicity in soybean plants.
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Affiliation(s)
- Anis Fatima
- Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Sunita Kataria
- School of Biochemistry, Devi Ahilya Vishwavidyalaya, Khandwa Road, Indore, M.P., 452001, India
| | - Rajkumar Prajapati
- School of Biochemistry, Devi Ahilya Vishwavidyalaya, Khandwa Road, Indore, M.P., 452001, India
| | - Meeta Jain
- School of Biochemistry, Devi Ahilya Vishwavidyalaya, Khandwa Road, Indore, M.P., 452001, India
| | - Ashish K Agrawal
- Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Balwant Singh
- Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Yogesh Kashyap
- Technical Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India
| | - Durgesh Kumar Tripathi
- Amity Institute of Organic Ariculture, Amity University Uttar Pradesh, Noida, 201313, India
| | - Vijay Pratap Singh
- Plant Physiology Lab, Department of Botany, C.M.P. Degree College, A Constituent Post Graduate College of University of Allahabad, Prayagraj, 211002, India
| | - Rekha Gadre
- School of Biochemistry, Devi Ahilya Vishwavidyalaya, Khandwa Road, Indore, M.P., 452001, India
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Vashisth A, Meena N, Krishnan P. Magnetic Field Affects Growth and Yield of Sunflower Under Different Moisture Stress Conditions. Bioelectromagnetics 2021; 42:473-483. [PMID: 34174103 DOI: 10.1002/bem.22354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 05/17/2021] [Accepted: 05/29/2021] [Indexed: 11/10/2022]
Abstract
Magnetic field treatments of seeds have shown significant effects on the enhancement of crop growth. Soil moisture stress is the major constraint in the production of the sunflower crop. Therefore, the experiment was conducted to investigate the effect of a 200 mT magnetic field for 2 h on crop growth, and yield of sunflower crops raised from magnetically treated seeds sown under different moisture stress conditions. Results showed that plants from magnetically treated seeds had higher leaf area index, shoot length, number of leaves, chlorophyll content, biomass, 1000-seed mass, and seed yield as compared with untreated. Radiation use efficiency and water productivity were significantly higher in plants raised from magnetically treated seeds than untreated seeds. Crop raised from magnetically treated seeds had 6.2% more seed yield, 7.1% more protein, and oil content as compared with crops raised from untreated seeds. Hence, it may be concluded that exposure of dry sunflower seeds to the static magnetic field of 200 mT for 2 h could be used for improving crop growth and yield under different moisture stress conditions. © 2021 Bioelectromagnetics Society.
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Affiliation(s)
- Ananta Vashisth
- Division of Agricultural Physics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Neetu Meena
- Division of Agricultural Physics, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Prameela Krishnan
- Division of Agricultural Physics, ICAR-Indian Agricultural Research Institute, New Delhi, India
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DIFFERENT NITRATE AND AMMONIUM LEVELS MEDIA ON CHANGES OF NITROGEN ASSIMILATION ENZYMES IN RICE. BIOVALENTIA: BIOLOGICAL RESEARCH JOURNAL 2021. [DOI: 10.24233/biov.7.1.2021.204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Nitrogen (N) is an important nutrient for the growth and development of rice plants, required in large quantity and often limiting factor of rice yields. The research was to understand the different sources and levels of nitrogen in rice plant on the activity of N assimilation enzymes, including nitrate reductase (NR), glutamine synthase (GS) content, glutamate synthase (Gogat) content, content, ammonium (NH4+) and nitrate (NO3-) content on the leaves. Paddy (Ciherang variety) was grown in sand media containing Hoagland solution with different sources (ammonium and nitrate) and levels (0.4, 0.8, 1.6, 3.2, 6.4, and 12.8 mM) of nitrogen. Nitrogen assimilation was observed from leaves at one month of age. The NR activity increased on both Nitrogen sources, it was a higher activity in media contained nitrate. Also, the activity of GS showed higher in media contains nitrate, but its activity was decreased after application 1.6 mM of nitrate and 3.2 mM of ammonium. Western blot analysis of GS1 and GS2 showed that the band pattern of protein was similar to these enzyme activities. Nitrate content in leaves gradually increased in both sources of nitrogen and higher than 3.2 mM ammonium application caused an increase in ammonium content in leaves, but the nitrate content decreased. This research resulted that the available source of N for rice was in nitrate form, easily by the rice plants during the growth stage.
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Kanungo M, Guruprasad KN, Kataria S, Asa Dudin G, Nasser Alyemeni M, Ahmad P. Foliar application of fungicide-opera alleviates negative impact of water stress in soybean plants. Saudi J Biol Sci 2021; 28:2626-2633. [PMID: 34025146 PMCID: PMC8117022 DOI: 10.1016/j.sjbs.2021.02.079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/24/2021] [Accepted: 02/24/2021] [Indexed: 11/30/2022] Open
Abstract
The modulatory effect of opera was investigated on the physiological and morphological aspects in soybean thriving in water stress environment. The data procured from current investigation indicated that water stress significantly declined the plant growth, leaf area in addition to photosynthetic efficiency, nitrate reductase activity and crop yield at various stages of growth such as vegetative (VS), flowering (FS) and pod filling stage (PFS). However, foliar application of opera (0.15%) was effective to enhance the the leaf area (42%), rate of photosynthesis (194%), and nitrate reductase activity (68%) at FS stage while the maximum enhancement in biomass accumulation (92%) and yield (119%) was observed at PFS stage as compared to their control plants. The opera is applied as foliar spray in field experiments to augment the assimilation of nitrogen and carbon in soybean which contributes to increased crop development and productivity under water stress conditions.
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Affiliation(s)
- Mansi Kanungo
- Department of Biosciences, Christian Eminent College, DAVV, Indore, M.P, India
| | - K N Guruprasad
- Shri Vaishnav Institute of Science, Shri Vaishnav Vidyapeeth Vishwavidyalaya, Indore, M.P, India
| | - Sunita Kataria
- School of Biochemistry, DAVV, Khandwa Road, Indore, M.P, India
| | - Gani Asa Dudin
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed Nasser Alyemeni
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Parvaiz Ahmad
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, Saudi Arabia
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Sarraf M, Kataria S, Taimourya H, Santos LO, Menegatti RD, Jain M, Ihtisham M, Liu S. Magnetic Field (MF) Applications in Plants: An Overview. PLANTS 2020; 9:plants9091139. [PMID: 32899332 PMCID: PMC7570196 DOI: 10.3390/plants9091139] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 08/27/2020] [Accepted: 08/30/2020] [Indexed: 01/21/2023]
Abstract
Crop yield can be raised by establishment of adequate plant stand using seeds with high germination ratio and vigor. Various pre-sowing treatments are adopted to achieve this objective. One of these approaches is the exposure of seeds to a low-to-medium level magnetic field (MF), in pulsed and continuous modes, as they have shown positive results in a number of crop seeds. On the basis of the sensitivity of plants to MF, different types of MF have been used for magnetopriming studies, such as weak static homogeneous magnetic fields (0–100 μT, including GMF), strong homogeneous magnetic fields (milliTesla to Tesla), and extremely low frequency (ELF) magnetic fields of low-to-moderate (several hundred μT) magnetic flux densities. The agronomic application of MFs in plants has shown potential in altering conventional plant production systems; increasing mean germination rates, and root and shoot growth; having high productivity; increasing photosynthetic pigment content; and intensifying cell division, as well as water and nutrient uptake. Furthermore, different studies suggest that MFs prevent the large injuries produced/inflicted by diseases and pests on agricultural crops and other economically important plants and assist in reducing the oxidative damage in plants caused by stress situations. An improved understanding of the interactions between the MF and the plant responses could revolutionize crop production through increased resistance to disease and stress conditions, as well as the superiority of nutrient and water utilization, resulting in the improvement of crop yield. In this review, we summarize the potential applications of MF and the key processes involved in agronomic applications. Furthermore, in order to ensure both the safe usage and acceptance of this new opportunity, the adverse effects are also discussed.
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Affiliation(s)
- Mohammad Sarraf
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China;
- Department of Horticulture Science, Shiraz Branch, Islamic Azad University, Shiraz 71987-74731, Iran
| | - Sunita Kataria
- School of Biochemistry, Devi Ahilya Vishwavidyalaya, Indore 452001, India; (S.K.); (M.J.)
| | - Houda Taimourya
- Department of Horticulture, Horticol complex of Agadir (CHA), Agronomy and Veterinary Institute Hassan II, Agadir 80000, Morocco;
| | - Lucielen Oliveira Santos
- Laboratory of Biotechnology, School of Chemistry and Food, Federal University of Rio Grande, Rio Grande-RS 96203-900, Brazil;
| | - Renata Diane Menegatti
- Department of Botany, Institute of Biology, Federal University of Pelotas, Rio Grande-RS 96203-900, Brazil;
| | - Meeta Jain
- School of Biochemistry, Devi Ahilya Vishwavidyalaya, Indore 452001, India; (S.K.); (M.J.)
| | - Muhammad Ihtisham
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China;
- College of Horticulture and Forestry, Huazhong Agricultural University, Wuhan 430070, China
- Correspondence: (M.I.); (S.L.); Tel.: +86-139-8064-5789 (S.L.)
| | - Shiliang Liu
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China;
- Correspondence: (M.I.); (S.L.); Tel.: +86-139-8064-5789 (S.L.)
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Comparative transcriptome analysis to identify putative genes related to trichome development in Ocimum species. Mol Biol Rep 2020; 47:6587-6598. [PMID: 32860161 DOI: 10.1007/s11033-020-05710-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 08/02/2020] [Indexed: 10/23/2022]
Abstract
Genus Ocimum is known to have species possessing important therapeutic essential oil. The major phytoconstituents of essential oil in Ocimum species are phenylpropanoids and terpenoids. The essential oil is accumulated in the trichomes; the specialized structures predominantly found on leaves and other tissues. The development of trichome is integrated with development of plant and leaf and also tightly coordinated with the primary and secondary metabolic pathways producing essential oil constituents. In continuation to our studies on elucidating/understanding the mechanism of biosynthesis of essential oil pathways in Ocimum species, we have performed comparative transcriptome analysis to investigate the role of trichome-related gene expression in the regulation of biosynthetic pathways of essential oil. The essential oil biogenesis is tightly integrated with primary metabolic activities, the analysis for the expression pattern of genes related to primary metabolism and its relationship with secondary metabolism was evaluated in comparative manner. Physiological parameters in relation to primary metabolism such as photosynthetic pigment content, soluble sugar content, and invertase enzymes along with morphological parameters were analysed in O. basilicum and O. sanctum. Differential expression profiling uncovered about 8116 and 2810 differentially expressed transcripts in O. basilicum and O. sanctum, respectively. Enrichment of differentially expressed genes were analysed in relation to metabolic pathways, primary metabolism and secondary metabolism. Trichome related genes identified from the Ocimum species vis-à-vis their expression profiles suggested higher expression in O. basilicum. The findings in this study provide interesting insights into the role of trichome-related transcripts in relation to essential oil content in Ocimum species. The study is valuable as this is the first study on revealing the transcripts and their role in trichome development and essential oil biogenesis in two major species of Ocimum.
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Abdel Latef AAH, Dawood MFA, Hassanpour H, Rezayian M, Younes NA. Impact of the Static Magnetic Field on Growth, Pigments, Osmolytes, Nitric Oxide, Hydrogen Sulfide, Phenylalanine Ammonia-Lyase Activity, Antioxidant Defense System, and Yield in Lettuce. BIOLOGY 2020; 9:E172. [PMID: 32709036 PMCID: PMC7408432 DOI: 10.3390/biology9070172] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 07/06/2020] [Accepted: 07/13/2020] [Indexed: 01/24/2023]
Abstract
Magnetic fields are an unavoidable physical factor affecting living organisms. Lettuce seeds (Lactuca sativa var. cabitat L.) were subjected to various intensities of the static magnetic field (SMF) viz., MF0 (control), SMF1 (0.44 Tesla (T), SMF2 (0.77 T), and SMF3 (1 T) for three exposure times (1, 2, and 3 h). SMF-treated seedlings showed induction in growth parameters and metabolism comparing to control. All photosynthetic pigments were induced markedly under SMF, especially chlorophyll a. SMF at different intensities boosted osmolytes, non-enzymatic antioxidants, and the phenylalanine ammonia-lyase activity over non-magnetized seedlings. Oxidative damage criteria viz., hydrogen peroxide, superoxide radical, and lipid peroxidation, as well as polyphenol oxidase activity, were kept at low values under SMF-treated seeds relative to control, especially SMF2. Electron donors to antioxidant enzymes including nitrate reductase, nitric oxide, and hydrogen sulfide induced via SMF exposure and consequently the activities of superoxide dismutase, glutathione-S-transferases, catalase, and peroxidases family enzymes were also stimulated under SMF, whatever the intensity or the exposure period applied. All these regulations reflected on the enhancement of lettuce yield production which reached 50% over the control at SMF3. Our findings offered that SMF-seed priming is an innovative and low-cost strategy that can improve the growth, bioactive constituents, and yield of lettuce.
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Affiliation(s)
- Arafat Abdel Hamed Abdel Latef
- Biology Department, Turabah University College, Turabah Branch, Taif University, Taif 21995, Saudi Arabia
- Botany and Microbiology Department, Faculty of Science, South Valley University, Qena 83523, Egypt
| | - Mona F. A. Dawood
- Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut 71516, Egypt;
| | - Halimeh Hassanpour
- Aerospace Research Institute, Ministry of Science Research and Technology, Tehran 14665-834, Iran;
| | - Maryam Rezayian
- Department of Plant Biology, and Center of Excellence in Phylogeny of Living Organisms in Iran, School of Biology, College of Science, University of Tehran, Tehran 14155-6455, Iran;
| | - Nabil A. Younes
- Horticulture Department, Faculty of Agriculture, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt;
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