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Mays V, Smith N, Pham C, White M, Wu Q, Berry J, Linan A, Alexander Wait D, Kovacs L. Attenuation of photosynthesis in nanosilver-treated Arabidopsis thaliana is inherently linked to the particulate nature of silver. Heliyon 2024; 10:e27583. [PMID: 38509917 PMCID: PMC10950886 DOI: 10.1016/j.heliyon.2024.e27583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 12/15/2023] [Accepted: 03/03/2024] [Indexed: 03/22/2024] Open
Abstract
Silver nanoparticles (AgNPs) are known to affect the physiology and morphology of plants in various ways, but the exact mechanism by which they interact with plant cells remains to be elucidated. An unresolved question of silver nanotoxicology is whether the interaction is triggered by the physical features of the particles, or by silver ions leached from their surface. In this study, we germinated and grew Arabidopsis thaliana seedlings in synthetic medium supplemented with sub-morbid concentrations (4 μg/mL) of AgNPs and silver nitrate (AgNO3). This treatment led to in planta accumulation of 106 μg/g and 97 μg/g of silver in the AgNO3- and AgNP-exposed seedlings, respectively. Despite the statistically indistinguishable silver accumulation, RNA sequencing data demonstrated distinct changes in the transcriptome of the AgNP-exposed, but not in the AgNO3-exposed plants. AgNP exposure induced changes in the expression of genes involved in immune response, cell wall organization, photosynthesis and cellular defense against reactive oxygen species. AgNO3 exposure, on the other hand, caused the differential expression of only two genes, neither of which belonged to any AgNP-enriched gene ontology categories. Moreover, AgNP exposure led to a 39% reduction (p < 0.001) in total chlorophyll concentration relative to untreated plants which was associated with a 56.9% and 56.2% drop (p < 0.05) in carbon assimilation rate at ambient and saturating light, respectively. Stomatal conductance was not significantly affected by AgNP exposure, and limitations to carbon assimilation, as determined through analysis of light and carbon dioxide (A/Ci) curves, were attributed to rates of electron transport, maximum carboxylation rates and triose phosphate use. AgNO3-exposure, on the other hand, did not lead to significant reduction either in chlorophyll concentration or in carbon assimilation rate. Given these data, we propose that the impact of AgNPs cannot be simply attributed to the presence of the metal in plants, but is innate to the particulate nature of nanosilver.
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Affiliation(s)
- Vincent Mays
- Department of Biology, Missouri State University, Springfield, MO, USA
| | - Natalie Smith
- Department of Biology, Missouri State University, Springfield, MO, USA
| | - Cody Pham
- Department of Biology, Missouri State University, Springfield, MO, USA
| | - Margaret White
- Department of Biology, Missouri State University, Springfield, MO, USA
| | - Qihua Wu
- Jordan Valley Innovation Center, Missouri State University, Springfield, MO, USA
| | - Jacob Berry
- Jordan Valley Innovation Center, Missouri State University, Springfield, MO, USA
| | | | - D. Alexander Wait
- Department of Biology, Missouri State University, Springfield, MO, USA
| | - Laszlo Kovacs
- Department of Biology, Missouri State University, Springfield, MO, USA
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Mmereke KM, Venkataraman S, Moiketsi BN, Khan MR, Hassan SH, Rantong G, Masisi K, Kwape TE, Gaobotse G, Zulfiqar F, Kumar Sharma S, Malik S, Makhzoum A. Nanoparticle elicitation: A promising strategy to modulate the production of bioactive compounds in hairy roots. Food Res Int 2024; 178:113910. [PMID: 38309862 DOI: 10.1016/j.foodres.2023.113910] [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] [Received: 09/08/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 02/05/2024]
Abstract
Hairy root culture is one of the promising biotechnological tools to obtain the stable and sustainable production of specialized metabolites from plants under controlled environment conditions. Various strategies have been adopted to enhance the accumulation of bioactive compounds in hairy roots yet their utilization at the commercial scale is restricted to only a few products. Recently, nanotechnology has been emerged as an active technique that has revolutionized the many sectors in an advantageous way. Elicitation using nanoparticles has been recognized as an effective strategy for enhancing the bioactive compounds of interest in plants. Nanoparticles elicit the activity of defense-related compounds through activation of the specific transcription factors involved in specialized metabolites production. This review discusses the recent progress in using nanoparticles to enhance specialized metabolite biosynthesis using hairy root culture system and the significant achievements in this area of research. Biotic and abiotic elicitors to improve the production of bioactive compounds in hairy roots, different types of nanoparticles as eliciting agents, their properties as dependent on shape, most widely used nanoparticles in plant hairy root systems are described in detail. Further challenges involved in application of nanoparticles, their toxicity in plant cells and risks associated to human health are also envisaged. No doubt, nanoparticle elicitation is a remarkable approach to obtain phytochemicals from hairy roots to be utilized in various sectors including food, medicines, cosmetics or agriculture but it is quite essential to understand the inter-relationships between the nanoparticles and the plant systems in terms of specifics such as type, dosage and time of exposure as well as other important parameters.
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Affiliation(s)
- Kamogelo M Mmereke
- Department of Biological Sciences & Biotechnology, Botswana International University of Science & Technology, Palapye, Botswana
| | - Srividhya Venkataraman
- Virology Laboratory, Department of Cell & Systems Biology, University of Toronto, Toronto, ON M5S 3B2, Canada
| | - Bertha Nametso Moiketsi
- Department of Biological Sciences & Biotechnology, Botswana International University of Science & Technology, Palapye, Botswana
| | - Muhammad Rehan Khan
- Department of Agricultural Science, University of Naples Federico II, Via Università 133, 80055 Portici, Italy; URD Agro-Biotechnologies Industrielles (ABI), CEBB, AgroParisTech, 3 Rue des Rouges-Terres, 51110 Pomacle, France
| | - Sayyeda Hira Hassan
- Department of Biosciences and Territory, University of Molise, 86090 Pesche, Italy
| | - Gaolathe Rantong
- Department of Biological Sciences & Biotechnology, Botswana International University of Science & Technology, Palapye, Botswana
| | - Kabo Masisi
- Department of Biological Sciences & Biotechnology, Botswana International University of Science & Technology, Palapye, Botswana
| | - Tebogo E Kwape
- Department of Biological Sciences & Biotechnology, Botswana International University of Science & Technology, Palapye, Botswana
| | - Goabaone Gaobotse
- Department of Biological Sciences & Biotechnology, Botswana International University of Science & Technology, Palapye, Botswana
| | - Faisal Zulfiqar
- Department of Horticultural Sciences, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | | | - Sonia Malik
- Physiology, Ecology and Environment (P2E) Laboratory, University of Orleans, INRAE, USC1328, 45067 Orleans, France.
| | - Abdullah Makhzoum
- Department of Biological Sciences & Biotechnology, Botswana International University of Science & Technology, Palapye, Botswana.
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Javed R, Khan B, Sharafat U, Bilal M, Galagedara L, Abbey L, Cheema M. Dynamic interplay of metal and metal oxide nanoparticles with plants: Influencing factors, action mechanisms, and assessment of stimulatory and inhibitory effects. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 271:115992. [PMID: 38262092 DOI: 10.1016/j.ecoenv.2024.115992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 01/10/2024] [Accepted: 01/13/2024] [Indexed: 01/25/2024]
Abstract
Nanoparticles (NPs) of metals and metal oxides have received increasing attention regarding their characteristic behavior in plant systems. The fate and transport of metal NPs and metal oxide NPs in plants is of emerging concern for researchers because they ultimately become part of the food chain. The widespread use of metal-based NPs (MBNPs) in plants has revealed their beneficial and harmful effects. This review addresses the main factors affecting the uptake, translocation, absorption, bioavailability, toxicity, and accumulation of MBNPs in different plant species. It appraises the mechanism of nanoparticle-plant interaction in detail and provides understanding of the estimation strategies for the associated pros and cons with this interplay. Critical parameters of NPs include, but are not limited to, particle size and shape, surface chemistry, surface charge, concentration, solubility, and exposure route. On exposure to MBNPs, the molecular, physiological, and biochemical reactions of plants have been assessed. We have filled knowledge gaps and answered research questions regarding the positive and negative effects of metal and metal oxide NPs on seed germination, callus induction, growth and yield of plant, nutritional content, antioxidants, and enzymes. Besides, the phytotoxicity, cytotoxicity, genotoxicity, and detoxification studies of MBNPs in plants have been outlined. Furthermore, the recent developments and future perspectives of the two-way traffic of interplay of MBNPs and plants have been provided in this comprehensive review.
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Affiliation(s)
- Rabia Javed
- School of Science and the Environment, Memorial University of Newfoundland, NL, Canada.
| | - Bakhtawar Khan
- Department of Biotechnology, Quaid-i-Azam University, Islamabad 54320, Pakistan
| | - Uzma Sharafat
- School of Science and the Environment, Memorial University of Newfoundland, NL, Canada.
| | - Muhammad Bilal
- Department of Biotechnology, Quaid-i-Azam University, Islamabad 54320, Pakistan
| | - Lakshman Galagedara
- School of Science and the Environment, Memorial University of Newfoundland, NL, Canada.
| | - Lord Abbey
- Department of Plant, Food and Environmental Sciences, Faculty of Agriculture, Dalhousie University, NS, Canada.
| | - Mumtaz Cheema
- School of Science and the Environment, Memorial University of Newfoundland, NL, Canada.
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Iori V, Muzzini VG, Venditti I, Casentini B, Iannelli MA. Phytotoxic impact of bifunctionalized silver nanoparticles (AgNPs-Cit-L-Cys) and silver nitrate (AgNO 3) on chronically exposed callus cultures of Populus nigra L. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:116175-116185. [PMID: 37907823 PMCID: PMC10682225 DOI: 10.1007/s11356-023-30690-7] [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: 01/17/2023] [Accepted: 10/22/2023] [Indexed: 11/02/2023]
Abstract
Owing to the unique physicochemical properties and the low manufacturing costs, silver nanoparticles (AgNPs) have gained growing interest and their application has expanded considerably in industrial and agricultural sectors. The large-scale production of these nanoparticles inevitably entails their direct or indirect release into the environment, raising some concerns about their hazardous aspects. Callus culture represents an important tool in toxicological studies to evaluate the impact of nanomaterials on plants and their potential environmental risk. In this study, we investigated the chronic phytotoxic effects of different concentrations of novel bifunctionalized silver nanoparticles (AgNPs-Cit-L-Cys) and silver nitrate (AgNO3) on callus culture of Populus nigra L., a pioneer tree species in the riparian ecosystem. Our results showed that AgNPs-Cit-L-Cys were more toxic on poplar calli compared to AgNO3, especially at low concentration (2.5 mg/L), leading to a significant reduction in biomass production, accompanied by a decrease in protein content, a significant increase in both lipid peroxidation level, ascorbate peroxidase (APX), and catalase (CAT) enzymatic activities. In addition, these findings suggested that the harmful activity of AgNPs-Cit-L-Cys might be correlated with their physicochemical properties and not solely attributed to the released Ag+ ions and confirmed that AgNPs-Cit-L-Cys phytoxicity is associated to oxidative stress.
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Affiliation(s)
- Valentina Iori
- Institute of Agricultural Biology and Biotechnology - National Research Council (IBBA-CNR), Strada Provinciale 35d, 9, 00010, Montelibretti, Rome, Italy.
| | - Valerio Giorgio Muzzini
- Research Institute On Terrestrial Ecosystems - National Research Council (IRET-CNR), Strada Provinciale 35d, 9, 00010, Montelibretti, Rome, Italy
| | - Iole Venditti
- Department of Sciences, University of Roma Tre, Via Della Vasca Navale 79, 00146, Rome, Italy
| | - Barbara Casentini
- Water Research Institute - National Research Council (IRSA-CNR), Strada Provinciale 35d, 9, 00010, Montelibretti, Rome, Italy
| | - Maria Adelaide Iannelli
- Institute of Agricultural Biology and Biotechnology - National Research Council (IBBA-CNR), Strada Provinciale 35d, 9, 00010, Montelibretti, Rome, Italy
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Lam VP, Beomseon L, Anh VK, Loi DN, Kim S, Kwang-ya L, Park J. Effectiveness of silver nitrate application on plant growth and bioactive compounds in Agastache rugosa (Fisch. & C.A.Mey.) kuntze. Heliyon 2023; 9:e20205. [PMID: 37810151 PMCID: PMC10559964 DOI: 10.1016/j.heliyon.2023.e20205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 09/07/2023] [Accepted: 09/13/2023] [Indexed: 10/10/2023] Open
Abstract
The objective of this study was to determine the optimal dose of silver nitrate (AgNO3) for plant growth and to increase the main bioactive compounds in A. rugosa cultivated in a hydroponic system. The application of soaked diniconazole (120 μmol mol-1) to all plants at 7 days after transplanting (DAT) for dwarfing plant height, optimizing cultivation space in the plant factory. Subsequently, plants were soaked with 50, 100, 200, and 400 μmol mol-1 AgNO3 for 10 min at 25 DAT and harvested at 39 DAT. The results indicated that 200 and 400 μmol mol-1 treatments tended to severely decrease plant growth parameters compared to treatments with lower concentrations. The net photosynthetic rate was significantly reduced by the 200 and 400 μmol mol-1 treatments compared to treatments with other concentrations. The 400 μmol mol-1 treatment led to the lowest concentrations of chlorophyll a, chlorophyll a/b, total carotenoid, chlorophyll b, and the total chlorophyll. However, 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity was considerably increased in 50, 100, 200, and 400 μmol mol-1 compared to that of the control plants. A higher rosmarinic acid (RA) concentration in the whole plant was noticed with the 400 μmol mol-1 treatment compared with that of the untreated plants. The 100 μmol mol-1 treatment exhibited the highest concentration and content of tilianin in the whole plant. Concentration of acacetin 1 significantly increased in the whole plant with 100 and 200 μmol mol-1 treatments compared with that of the untreated plants. Concentrations of acacetin 2 and 3 in the whole plant were the highest with 100 and 200 μmol mol-1 treatments, respectively. The results demonstrated that 100 μmol mol-1 treatments can be used to increase bioactive compounds without severely limiting the plant growth and reducing chlorophyll concentrations of A. rugosa. Implementing this optimal dose can enable growers and researchers to cultivate A. rugosa more efficiently, enhancing bioactive compound content and overall plant performance, thus harnessing the potential health benefits of this valuable plant species.
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Affiliation(s)
- Vu Phong Lam
- Department of Horticultural Science, Chungnam National University, Daejeon, 34134, South Korea
- Department of Agronomy, Tay Bac University, Son La, 360000, Viet Nam
| | - Lee Beomseon
- Naru Agricultural Consultancy Company, Jisanmaeul-gil 19, Buk-gu, Gwangju city, 61014, South Korea
| | - Vu Ky Anh
- Department of Bio-AI Convergence, Chungnam National University, Daejeon, 34134, South Korea
| | - Dao Nhan Loi
- Department of Bio-AI Convergence, Chungnam National University, Daejeon, 34134, South Korea
- Department of Agronomy, Tay Bac University, Son La, 360000, Viet Nam
| | - Sunwoo Kim
- Department of Bio-AI Convergence, Chungnam National University, Daejeon, 34134, South Korea
| | - Lee Kwang-ya
- Institude of Agriculture Science, Chungnam National University, Daejeon, 34134, South Korea
| | - Jongseok Park
- Department of Horticultural Science, Chungnam National University, Daejeon, 34134, South Korea
- Department of Bio-AI Convergence, Chungnam National University, Daejeon, 34134, South Korea
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Alhammad BA, Abdel-Aziz HMM, Seleiman MF, Tourky SMN. How Can Biological and Chemical Silver Nanoparticles Positively Impact Physio-Chemical and Chloroplast Ultrastructural Characteristics of Vicia faba Seedlings? PLANTS (BASEL, SWITZERLAND) 2023; 12:2509. [PMID: 37447073 DOI: 10.3390/plants12132509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/26/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023]
Abstract
Through interactions with plant cells, silver nanoparticles (AgNPs) with both biological and chemical origins can stimulate physiological and metabolic processes in plants. To ensure their safe application in the food chain, it is necessary to investigate their effects on plant systems. Therefore, the effects of chemical AgNPs (chem-AgNPs) and biologically synthesized AgNPs (bio-AgNPs) at different levels (i.e., 0, 10, and 50 ppm) on physiological and biochemical traits {i.e., root and shoot growth traits, photosynthetic pigments (Chl a, Chl b, carotenoids, and total pigments), soluble sugars, total carbohydrates, starch, H2O2, and antioxidant enzyme activities} of Vicia faba L. seedlings were investigated. AgNPs were biosynthesized from silver nitrate (AgNO3) by a green synthesis approach using Jatropha curcas seed extract. The synthesized AgNPs were characterized by UV-vis spectroscopy, transmission electron microscopy (TEM), zeta potential, Fourier-transform infrared spectra (FT-IR), and X-ray diffraction (XRD). The results showed that bio-AgNPs at 10 ppm resulted in the highest growth, physiological, and biological traits of faba bean seedlings in comparison with those obtained from both AgNO3 and chem-AgNPs treatments. On the other hand, all AgNPs treatments adversely affected the chloroplast ultrastructure, however, fewer negative effects were obtained with the application of 10 ppm bio-AgNPs. In addition, the roots and shoots of seedlings contained the lowest Ag content under different treatments at 10 ppm AgNPs in comparison to the highest level of AgNPs (50 ppm), which indicates that additional studies should be incorporated to ensure safe use of lower concentrations of bio-AgNPs in seed priming. In conclusion, the application of biogenic nanoparticles at 10 ppm can be recommended to enhance plant growth and the productivity of strategic crops.
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Affiliation(s)
- Bushra Ahmed Alhammad
- Biology Department, College of Science and Humanity Studies, Prince Sattam Bin Abdulaziz University, Al Kharj Box 292, Riyadh 11942, Saudi Arabia
| | - Heba M M Abdel-Aziz
- Botany Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
| | - Mahmoud F Seleiman
- Plant Production Department, College of Food and Agriculture Sciences, King Saud University, P.O. Box 2460, Riyadh 11451, Saudi Arabia
- Department of Crop Sciences, Faculty of Agriculture, Menoufia University, Shibin El-Kom 32514, Egypt
| | - Shaimaa M N Tourky
- Botany Department, Faculty of Science, Mansoura University, Mansoura 35516, Egypt
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Iannelli MA, Bellini A, Venditti I, Casentini B, Battocchio C, Scalici M, Ceschin S. Differential phytotoxic effect of silver nitrate (AgNO 3) and bifunctionalized silver nanoparticles (AgNPs-Cit-L-Cys) on Lemna plants (duckweeds). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2022; 250:106260. [PMID: 35933908 DOI: 10.1016/j.aquatox.2022.106260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 07/31/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Duckweeds are aquatic plants often used in phytotoxic studies for their small size, simple structure, rapid growth, high sensitivity to pollutants and facility of maintaining under laboratory conditions. In this paper, induced phytotoxic effects were investigated in Lemna minor and Lemna minuta after exposition to silver nitrate (AgNO3) and silver nanoparticles stabilized with sodium citrate and L-Cysteine (AgNPs-Cit-L-Cys) at different concentrations (0, 20 and 50 mg/L) and times (7 and 14 days). Lemna species responses were evaluated analyzing plant growth (mat thickness, fresh and dry biomass, relative growth rate - RGR) and physiological parameters (chlorophyll - Chl, malondialdehyde - MDA, ascorbate peroxidase - APX and catalase - CAT). Ag content was measured in the fronds of the two Lemna species by inductively coupled plasma optical emission spectrometry. AgNO3 and AgNPs-Cit-L-CYs produced phytotoxic effects on both duckweed species (plant growth and Chl reduction, MDA increase) that enhanced in response to increasing concentrations and exposure times. AgNPs-Cit-L-Cys caused much less alteration in the plants compared to AgNO3 suggesting that the presence of bifunctionalized AgNPs-Cit-L-Cys have a reduced phytotoxic effect as compared to Ag+ released in water. Based on the physiological performance, L. minuta plants showed a large growth reduction and higher levels of chlorosis and stress in respect to L. minor plants, probably due to greater Ag+ ions accumulation in the fronds. Albeit with some differences, both Lemna species were able to uptake Ag+ ions from the aqueous medium, especially over a period of 14 days, and could be considered adapt as phytoremediation agents for decontaminating silver ion-polluted water.
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Affiliation(s)
- M A Iannelli
- Institute of Agricultural Biology and Biotechnology - National Research Council (IBBA-CNR), Via Salaria Km 29.300, 00015 Monterotondo Scalo, Rome, Italy.
| | - A Bellini
- Department of Sciences, University of Roma Tre, Viale G. Marconi 446, 00146 Rome, Italy.
| | - I Venditti
- Department of Sciences, University of Roma Tre, Viale G. Marconi 446, 00146 Rome, Italy.
| | - B Casentini
- Water Research Institute - National Research Council (IRSA-CNR), Via Salaria Km 29.300, 00015 Monterotondo Scalo, Rome, Italy.
| | - C Battocchio
- Department of Sciences, University of Roma Tre, Viale G. Marconi 446, 00146 Rome, Italy.
| | - M Scalici
- Department of Sciences, University of Roma Tre, Viale G. Marconi 446, 00146 Rome, Italy.
| | - S Ceschin
- Department of Sciences, University of Roma Tre, Viale G. Marconi 446, 00146 Rome, Italy.
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Yang Y, Du P, Lai W, Yin L, Ding Y, Li Z, Hu H. Changes in primary metabolites and volatile organic compounds in cotton seedling leaves exposed to silver ions and silver nanoparticles revealed by metabolomic analysis. PeerJ 2022; 10:e13336. [PMID: 35474690 PMCID: PMC9035277 DOI: 10.7717/peerj.13336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/05/2022] [Indexed: 01/13/2023] Open
Abstract
In the area of climate change, nanotechnology provides handy tools for improving crop production and assuring sustainability in global agricultural system. Due to excellent physiological and biochemical properties, silver nanoparticles (AgNPs) have been widely studied for potential use in agriculture. However, there are concerns about the mechanism of the toxic effects of the accumulation of AgNPs on crop growth and development. In this study, the impacts of AgNPs on cotton (Gossypium hirsutum) seedlings were evaluated by integrating physiological and comprehensive metabolomic analyses. Potting-soil-grown, two-week-old cotton seedlings were foliar-exposed to 5 mg/plant AgNP or 0.02 mg/plant Ag+ (equivalent to the free Ag+ released from AgNPs). Primary metabolites and volatile organic compounds (VOCs) were identified by gas chromatography-mass spectrometry (GC-MS) and solid-phase microextraction (SPME) GC-MS, respectively. AgNPs inhibited the photosynthetic capacity of the cotton leaves. The metabolic spectrum analysis identified and quantified 73 primary metabolites and 45 VOCs in cotton leaves. Both treatments significantly changed the metabolite profiles of plant leaves. Among the primary metabolites, AgNPs induced marked changes in amino acids, sugars and sugar alcohols. Among the VOCs, 13 volatiles, mainly aldehydes, alkanes and terpenoids, were specifically altered only in response to AgNPs. In summary, our study showed that the comprehensive influence of AgNPs on primary metabolites and VOCs was not merely attributed to the released Ag+ but was caused by AgNP-specific effects on cotton leaves. These results provide important knowledge about the physiological and chemical changes in cotton leaves upon exposure to AgNPs and offer a new insight for supporting the sustainable use of AgNPs in agriculture.
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Labeeb M, Badr A, Haroun SA, Mattar MZ, El-Kholy AS. Ultrastructural and molecular implications of ecofriendly made silver nanoparticles treatments in pea (Pisum sativum L.). JOURNAL OF GENETIC ENGINEERING AND BIOTECHNOLOGY 2022; 20:5. [PMID: 34985579 PMCID: PMC8733074 DOI: 10.1186/s43141-021-00285-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/13/2021] [Indexed: 02/06/2023]
Abstract
Background Silver nanoparticles (AgNPs) are the most widely used nanomaterial in agricultural and environmental applications. In this study, the impact of AgNPs solutions at 20 mg/L, 40 mg/L, 80 mg/L, and 160 mg/L on cell ultrastructure have been examined in pea (Pisum sativum L) using a transmission electron microscope (TEM). The effect of AgNPs treatments on the α, β esterase (EST), and peroxidase (POX) enzymes expression as well as gain or loss of inter-simple sequence repeats (ISSRs) markers has been described. Results Different structural malformations in the cell wall and mitochondria, as well as plasmolysis and vacuolation were recorded in root cells. Damaged chloroplast and mitochondria were frequently observed in leaves and the osmiophilic plastoglobuli were more observed as AgNPs concentration increased. Starch grains increased by the treatment with 20 mg/L AgNPs. The expressions of α, β EST, and POX were slightly changed but considerable polymorphism in ISSR profiles, using 17 different primers, were scored indicating gain or loss of gene loci as a result of AgNPs treatments. This indicates considerable variations in genomic DNA and point mutations that may be induced by AgNPs as a genotoxic nanomaterial. Conclusion AgNPs may be used to induce genetic variation at low concentrations. However, considerations should be given to the uncontrolled use of nanoparticles and calls for evaluating their impact on plant growth and potential genotoxicity are justified.
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Affiliation(s)
- May Labeeb
- Botany and Microbiology Department, Faculty of Science, Kafrelsheikh University, Kafr Elsheikh, Egypt
| | - Abdelfattah Badr
- Botany and Microbiology Department, Faculty of Science, Helwan University, Cairo, Egypt
| | - Soliman A Haroun
- Botany and Microbiology Department, Faculty of Science, Kafrelsheikh University, Kafr Elsheikh, Egypt
| | - Magdy Z Mattar
- Botany and Microbiology Department, Faculty of Science, Menoufia University, Shebin Elkom, Egypt
| | - Aziza S El-Kholy
- Botany and Microbiology Department, Faculty of Science, Kafrelsheikh University, Kafr Elsheikh, Egypt.
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Zhang A, Ji Y, Sun M, Lin C, Zhou P, Ren J, Luo D, Wang X, Ma C, Zhang X, Feng G, Nie G, Huang L. Research on the drought tolerance mechanism of Pennisetum glaucum (L.) in the root during the seedling stage. BMC Genomics 2021; 22:568. [PMID: 34301177 PMCID: PMC8305952 DOI: 10.1186/s12864-021-07888-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 07/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Drought is one of the major environmental stresses resulting in a huge reduction in crop growth and biomass production. Pearl millet (Pennisetum glaucum L.) has excellent drought tolerance, and it could be used as a model plant to study drought resistance. The root is a very crucial part of plant that plays important roles in plant growth and development, which makes it a focus of research. RESULTS In this study, we explored the mechanism of drought tolerance of pearl millet by comparing physiological and transcriptomic data under normal condition and drought treatment at three time points (1 h, 3 h and 7 h) in the root during the seedling stage. The relative electrical conductivity went up from 1 h to 7 h in both control and drought treatment groups while the content of malondialdehyde decreased. A total of 2004, 1538 and 605 differentially expressed genes were found at 1 h, 3 h and 7 h respectively and 12 genes showed up-regulation at all time points. Some of these differentially expressed genes were significantly enriched into 'metabolic processes', 'MAPK signaling pathway' and 'plant hormone signal transduction' such as the ABA signal transduction pathway in GO and KEGG enrichment analysis. CONCLUSIONS Pearl millet was found to have a quick drought response, which may occur before 1 h that contributes to its tolerance against drought stress. These results can provide a theoretical basis to enhance the drought resistance in other plant species.
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Affiliation(s)
- Ailing Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yang Ji
- Sichuan Animal Science Academy, Chengdu, 610066, China
| | - Min Sun
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Chuang Lin
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Puding Zhou
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Juncai Ren
- College of Animal Science and Technology, Southwest University, Rongchang Campus, Chongqing, 402460, China
| | - Dan Luo
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xiaoshan Wang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Congyu Ma
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xinquan Zhang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Guangyan Feng
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Gang Nie
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Linkai Huang
- College of Grassland Science and Technology, Sichuan Agricultural University, Chengdu, 611130, China.
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11
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Awan SA, Khan I, Rizwan M, Zhang X, Brestic M, Khan A, El-Sheikh MA, Alyemeni MN, Ali S, Huang L. Exogenous abscisic acid and jasmonic acid restrain polyethylene glycol-induced drought by improving the growth and antioxidative enzyme activities in pearl millet. PHYSIOLOGIA PLANTARUM 2021; 172:809-819. [PMID: 33094486 DOI: 10.1111/ppl.13247] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 05/04/2023]
Abstract
Drought stress is one of the most immense and permanent constraints in agriculture, which leads to a massive loss of crop productivity. However, little is known about the mitigation role of exogenously applied abscisic acid (ABA) and jasmonic acid (JA) in pearl millet (Pennisetum glaucum L.) under PEG-induced drought stress. Therefore, the current study investigated the putative role of exogenous ABA and JA in improving drought stress tolerance in pearl millet. Thirteen-day-old seedlings were exposed to six different treatments as follow; control (ck), PEG-600 (20%), JA (100 μM), ABA (100 μM), PEG+JA, and PEG+ABA, and data were collected at 7 and 14 days after treatment (DAT). Results showed that PEG decreased plant growth while the oxidative damage increased due to over production of H2 O2 and MDA content as a result of decreased activities of the antioxidative enzymes including APX, CAT, and SOD in the leaves. However, exogenous ABA and JA positively enhanced the growth profile of seedlings by improving chlorophyll and relative water content under PEG treatment. A significant improvement was observed in the plant defense system resulting from increased activities of antioxidative enzymes due to exogenous ABA and JA under PEG. Overall, the performance of JA was found better than ABA under PEG-induced drought stress, and future investigations are needed to explore the potential effects of these phytohormones on the long-term crop management and productivity under drought stress.
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Affiliation(s)
- Samrah A Awan
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, China
| | - Imran Khan
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, China
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, Pakistan
| | - Xinquan Zhang
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, China
| | - Marian Brestic
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Nitra, Slovakia
| | - Aaqil Khan
- College of Agronomy, Sichuan Agricultural University, Chengdu, China
| | - Mohamed A El-Sheikh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed N Alyemeni
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, Pakistan
- Department of Biological Sciences and Technology, China Medical University, Taichung, Taiwan
| | - Linkai Huang
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, China
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12
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Khan I, Awan SA, Raza MA, Rizwan M, Tariq R, Ali S, Huang L. Silver nanoparticles improved the plant growth and reduced the sodium and chlorine accumulation in pearl millet: a life cycle study. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:13712-13724. [PMID: 33200384 DOI: 10.1007/s11356-020-11612-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 11/09/2020] [Indexed: 05/04/2023]
Abstract
Salt stress in agricultural soils is a global issue and little information is available about the efficiency of silver nanoparticles (AgNPs) in plants under salt stress. The aim of current study was to assess the efficacy of AgNPs in improving plant growth and reducing the salt-induced damages in pearl millet. The exposure of pearl millet plants grown in pots containing soil to different doses of salinity (0, 120, 150 mM) and AgNPs (0, 10, 20 and 30 mM) significantly influenced the morphology, physiology and yield-related attributes. Salt stress remarkably increased the concentration of sodium (Na) and chloride (Cl) in different organs of pearl millet plants. This led to increase the enhancement of hydrogen peroxide (H2O2) and malondialdehyde (MDA) content and caused severe oxidative damage by augmenting the activities of antioxidant enzymes. The obvious decrease in plant growth, height, dry biomass of root and shoot, chlorophylls and carotenoid contents was observed in salt-stressed plants which ultimately reduced the yield of plants. The AgNPs remarkably improved the plant growth by reducing oxidative stress and Na and Cl uptake by salt-stressed plants. The AgNPs were also found to maintain the ionic balance of cell (Na+, K+ and Na+/K+ ratio). The AgNPs improved the superoxide dismutase, catalase activities and decreased the peroxidase activity while reduced the H2O2 and MDA contents in plants under salt stress. Overall, AgNPs increased the plant height, yield, and photosynthesis of salt-stressed plants in a dose-additive manner.
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Affiliation(s)
- Imran Khan
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, 611130, China
| | - Samrah Afzal Awan
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, 611130, China
| | - Muhammad Ali Raza
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, People's Republic of China
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, 38000, Faisalabad, Pakistan
| | - Rezwan Tariq
- Department of Biotechnology, University of Okara, Okara, Punjab, 56300, Pakistan
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, 38000, Faisalabad, Pakistan.
- Department of Biological Sciences and Technology, China Medical University, Taichung, 40402, Taiwan.
| | - Linkai Huang
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, 611130, China.
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13
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Ziotti ABS, Ottoni CA, Correa CN, de Almeida OJG, de Souza AO, Neto MCL. Differential physiological responses of a biogenic silver nanoparticle and its production matrix silver nitrate in Sorghum bicolor. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:10.1007/s11356-021-13069-4. [PMID: 33625697 DOI: 10.1007/s11356-021-13069-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
Silver nanoparticles (AgNP) have been extensively applied in different industrial areas, mainly due to their antibiotic properties. One of the environmental concerns with AgNP is its incorrect disposal, which might lead to severe environmental pollution. The interplay between AgNP and plants is receiving increasing attention. However, little is known regarding the phytotoxic effects of biogenic AgNP on terrestrial plants. This study aimed to compare the effects of a biogenic AgNP and AgNO3 in Sorghum bicolor seedlings. Seeds were germinated in increasing concentrations of a biogenic AgNP and AgNO3 (0, 10, 100, 500, and 1000 μM) in a growth chamber with controlled conditions. The establishment and development of the seedlings were evaluated for 15 days. Physiological and morpho-anatomical indicators of stress, enzymatic, and non-enzymatic antioxidants and photosynthetic yields were assessed. The results showed that both AgNP and AgNO3 disturbed germination and the establishment of sorghum seedlings. AgNO3 released more free Ag+ spontaneously compared to AgNP, promoting increased Ag+ toxicity. Furthermore, plants exposed to AgNP triggered more efficient protective mechanisms compared with plants exposed to AgNO3. Also, the topology and connectivity of the correlation-based networks were more impacted by the exposure of AgNO3 than AgNP. In conclusion, it is plausible to say that the biogenic AgNP is less toxic to sorghum than its matrix AgNO3.
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Affiliation(s)
- Ana Beatriz Sicchieri Ziotti
- Institute of Biosciences, São Paulo State University (UNESP), Praça Infante Don Henrique, s/n, Parque Bitarú, São Vicente, SP, 11380-972, Brazil
- Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Cristiane Angélica Ottoni
- Institute of Biosciences, São Paulo State University (UNESP), Praça Infante Don Henrique, s/n, Parque Bitarú, São Vicente, SP, 11380-972, Brazil
- Instituto de Estudos Avançados do Mar (IEAMar), São Paulo State University, São Vicente, SP, Brazil
| | - Cláudia Neves Correa
- Institute of Biosciences, São Paulo State University (UNESP), Praça Infante Don Henrique, s/n, Parque Bitarú, São Vicente, SP, 11380-972, Brazil
| | - Odair José Garcia de Almeida
- Institute of Biosciences, São Paulo State University (UNESP), Praça Infante Don Henrique, s/n, Parque Bitarú, São Vicente, SP, 11380-972, Brazil
| | - Ana Olivia de Souza
- Innovation and Development Laboratory, Instituto Butantan, São Paulo, SP, Brazil
| | - Milton Costa Lima Neto
- Institute of Biosciences, São Paulo State University (UNESP), Praça Infante Don Henrique, s/n, Parque Bitarú, São Vicente, SP, 11380-972, Brazil.
- Institute of Biosciences, São Paulo State University (UNESP), Botucatu, SP, Brazil.
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14
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Mirmoeini T, Pishkar L, Kahrizi D, Barzin G, Karimi N. Phytotoxicity of green synthesized silver nanoparticles on Camelina sativa L. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2021; 27:417-427. [PMID: 33707878 PMCID: PMC7907400 DOI: 10.1007/s12298-021-00946-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 06/12/2023]
Abstract
Due to the increased production and release of silver nanoparticles (AgNPs) in the environment, the concerns about the possibility of toxicity and oxidative damage to plant ecosystems should be considered. In the present study, the effects of different concentrations of AgNPs (0, 0.5, 1, 2, 3 and 4 g/L) synthesized using the extract of camelina (Camelina sativa) leaves on the growth and the biochemical traits of camelina seedlings were investigated. The results showed that AgNPs significantly increased Ag accumulation in the roots and shoots which decreased the growth and photosynthetic pigments of camelina seedlings. The highest decrease in the height and total dry weight was observed by 53.1 and 61.8% under 4 g/L AgNPs, respectively over control plants. AgNPs application over 2 g/L enhanced the accumulation of proline, malondialdehyde, hydrogen peroxide and methylglyoxal, and up-regulated the activity of antioxidant enzymes (superoxide dismutase, catalase, ascorbate peroxidase and glutathione reductase) and glyoxalase (glyoxalase I and II) system which indicates oxidative stress induction in camelina seedlings. Moreover, AgNPs reduced ASA and GSH contents and increased DHA and GSSG contents, hence disrupting the redox balance. These results showed that AgNPs at 4 g/L had the most toxic effects on the camelina growth. Therefore, increasing oxidative stress markers and the activity of antioxidant enzymes and enzymes involved in glyoxalase system indicated the oxidative stress induced by AgNPs treatments over 2 g/L as well as the induction of antioxidant defense systems to combat AgNPs-induced oxidative stress.
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Affiliation(s)
| | - Leila Pishkar
- Department of Biology, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran
| | - Danial Kahrizi
- Department of Agronomy and Plant Breeding, Razi University, Kermanshah, Iran
| | - Giti Barzin
- Department of Biology, Islamshahr Branch, Islamic Azad University, Islamshahr, Iran
| | - Naser Karimi
- Plant Physiology Laboratory, Department of Biology, Faculty of Science, Razi University, Kermanshah, Iran
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Martins N, Pradhan A, Pascoal C, Cássio F. Effects of metal nanoparticles on freshwater rotifers may persist across generations. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 229:105652. [PMID: 33075614 DOI: 10.1016/j.aquatox.2020.105652] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 09/23/2020] [Accepted: 09/30/2020] [Indexed: 06/11/2023]
Abstract
Nanotechnology has become one of the fastest growing industries in the current century because nanomaterials (NMs) are present in an ever-expanding range of consumer products increasing the chance of their release into natural environments. In this study, the impacts of two metal nanoparticles (Ag-NPs and CuO-NPs) and their equivalent ionic forms (Ag+ and Cu2+) were assessed on the lentic freshwater rotifer Brachionus calyciflorus and on its ability to adapt and recover through generations. In our study, Ag-NPs and CuO-NPs inhibited the rotifer population growth rate and caused mortality at low concentrations (< 100 μg L-1). Ag-NPs and CuO-NPs decreased in the medium when organisms were present (48 h exposure: 51.1 % and 66.9 %, respectively), similarly Ag+ and Cu2+ also decreased from medium in presence of the organisms (48 h: 35.2 % and 47.3 %, respectively); although the metal concentrations removed from the medium were higher for nanoparticles than metal ions, metal ions showed higher effects then their respective nanoparticle forms. Rotifer populations exposed for 4 generations to the toxicants were able to recover the population growth rate, but some rotifers showed developmental delay and inability to reproduce even after the removal of the toxicants. Intracellular accumulation of reactive oxygen species as well as plasma membrane damage were found in the rotifers at concentrations corresponding to EC10 (Ag-NPs = 1.7 μg L-1, Ag+ = 4.5 μg L-1, CuO-NPs = 46.9 μg L-1, Cu2+ = 35 μg L-1) of the population growth rate. Our results showed, for the first time, that effects of metal nanoparticles and metal ions on rotifer populations may persist along several generations. This should be taken into account when assessing risks of metal nanoparticles in freshwaters.
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Affiliation(s)
- Nuno Martins
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Institute of Science and Innovation for Bio-sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
| | - Arunava Pradhan
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Institute of Science and Innovation for Bio-sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Cláudia Pascoal
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Institute of Science and Innovation for Bio-sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
| | - Fernanda Cássio
- Centre of Molecular and Environmental Biology (CBMA), Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Institute of Science and Innovation for Bio-sustainability (IB-S), University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal
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16
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Khan I, Raza MA, Awan SA, Shah GA, Rizwan M, Ali B, Tariq R, Hassan MJ, Alyemeni MN, Brestic M, Zhang X, Ali S, Huang L. Amelioration of salt induced toxicity in pearl millet by seed priming with silver nanoparticles (AgNPs): The oxidative damage, antioxidant enzymes and ions uptake are major determinants of salt tolerant capacity. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 156:221-232. [PMID: 32979796 DOI: 10.1016/j.plaphy.2020.09.018] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 09/14/2020] [Indexed: 05/20/2023]
Abstract
Abiotic stresses in plants reduce crop growth and productivity. Nanoparticles (NPs) are effectively involved in the physiochemical processes of crop plants, especially under the abiotic stresses; whereas, less information is available regarding the role of AgNPs in salt-stressed plants. Therefore, in the current study, we investigated the effects of seed priming with commercially available silver nanoparticles (AgNPs) (size range between 50 and 100 nm) on plant morphology, physiology, and antioxidant defence system of pearl millet (Pennisetum glaucum L.) under different concentrations of salt stress (0, 120 and 150 mM NaCl). The seed priming with AgNPs at different levels (0, 10, 20 and 30 mM) mitigated the adverse impacts of salt stress and improved plant growth and defence system. The results demonstrated that salt-stressed plants had restricted growth and a noticeable decline in fresh and dry weight. Salt stress enhanced the oxidative damage by excessive production of hydrogen peroxide (H2O2), malondialdehyde (MDA) contents in pearl millet leaves. However, seed priming with AgNPs significantly improved the plant height growth related attributes, relative water content, proline contents and ultimately fresh and dry weight at 20 mM AgNPs alone or with salt stress. The AgNPs reduced the oxidative damage by improving antioxidant enzyme activities in the pearl millet leaves under salt stress. Furthermore, sodium (Na+) and Na+/K+ ratio was decreased and potassium (K+) increased by NPs, and the interactive effects between salt and AgNPs significantly impacted the total phenolic and flavonoid content in pearl millet. It was concluded that seed priming with AgNPs could enhance salinity tolerance in crop plants by enhancing physiological and biochemical responses. This might boost global crop production in salt-degraded lands.
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Affiliation(s)
- Imran Khan
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, 611130, China
| | - Muhammad Ali Raza
- College of Agronomy, Sichuan Agricultural University, Chengdu, 611130, PR China
| | - Samrah Afzal Awan
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ghulam Abbas Shah
- Department of Agronomy, PMAS Arid Agriculture University, Rawalpindi, 46000, Pakistan
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, 38000, Pakistan
| | - Basharat Ali
- Department of Agronomy, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Rezwan Tariq
- Institute of Crop Science, Chinese Academy of Agriculture Sciences (CAAS), Beijing, 100081, China
| | - Muhammad Jawad Hassan
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, 611130, China
| | - Mohammed Nasser Alyemeni
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh, l1451, Saudi Arabia
| | - Marian Brestic
- Department of Plant Physiology, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture, Trieda A. Hlinku 2, 949 76, Nitra, Slovakia
| | - Xinquan Zhang
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, 38000, Pakistan; Department of Biological Sciences and Technology, China Medical University, Taichung, 40402, Taiwan.
| | - Linkai Huang
- Department of Grassland Science, Animal Science and Technology College, Sichuan Agricultural University, Chengdu, 611130, China.
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17
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Dan X, Wang C, Su Y, Zhang A, Wang R, Khan I, Huang L. Evaluation of genetic integrity of pearl millet seeds during aging by genomic-SSR markers. Mol Biol Rep 2020; 47:5747-5754. [PMID: 32676815 DOI: 10.1007/s11033-020-05642-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Accepted: 07/03/2020] [Indexed: 12/27/2022]
Abstract
Seed is an important way to store germplasm resources but its genetic integrity will decrease during long-term preservation. So, it's essential to update seeds according to the aging level of different species. Pearl millet [Cenchrus americanus (L.) Morrone syn., Pennisetum glaucum (L.) R. Br.] is a crucial forage grass, biofuel plant and important crops in the world bringing huge economic and ecological benefits. However, there is no report about the impact of aging on genetic integrity of its seeds. In this study, four genetic diversity indexes (the percentage of polymorphic bands, PPB; the effective number of alleles, Ne; the Nei's gene diversity index, H; the Shannon's information index, I) and 20 pairs of genomic-SSR primers were used to certify the optimal sample volume of pearl millet for molecular study and found that the best sample volume was 60. After the artificial aging test, the germination rate and four genetic diversity parameters (the number of alleles, Na; Ne; H; I) were used to evaluate the change of genetic integrity at different aging levels. The results showed that the germination rate and these four genetic diversity parameters declined with the increase of aging levels. Furthermore, when the germination rate of pearl millet seeds went down to 68.23%, a significant difference in genetic integrity was observed with unaged seeds. In conclusion, the optimal sample size of pearl millet was 60 and the critical point of germination rate to renew germplasm resources was 68.23% and these finds might contribute to the scientific study and the safe conservation of pearl millet.
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Affiliation(s)
- Xuming Dan
- Department of Grassland Science, Sichuan Agricultural University, Chengdu, 611330, Sichuan, China
| | - Chengran Wang
- Department of Grassland Science, Sichuan Agricultural University, Chengdu, 611330, Sichuan, China
| | - Yanning Su
- Department of Grassland Science, Sichuan Agricultural University, Chengdu, 611330, Sichuan, China
| | - Ailing Zhang
- Department of Grassland Science, Sichuan Agricultural University, Chengdu, 611330, Sichuan, China
| | - Ruijia Wang
- Department of Grassland Science, Sichuan Agricultural University, Chengdu, 611330, Sichuan, China
| | - Imran Khan
- Department of Grassland Science, Sichuan Agricultural University, Chengdu, 611330, Sichuan, China
| | - Linkai Huang
- Department of Grassland Science, Sichuan Agricultural University, Chengdu, 611330, Sichuan, China.
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18
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Lalau CM, Simioni C, Vicentini DS, Ouriques LC, Mohedano RA, Puerari RC, Matias WG. Toxicological effects of AgNPs on duckweed (Landoltia punctata). THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 710:136318. [PMID: 32050368 DOI: 10.1016/j.scitotenv.2019.136318] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 12/11/2019] [Accepted: 12/22/2019] [Indexed: 06/10/2023]
Abstract
Silver nanoparticles (AgNPs) are widely applied in several types of products since they act as a biocide. However, their high level of release into the environment can bring risks to ecosystems. Thus, the toxicity of AgNPs toward duckweed (Landoltia punctata) was investigated by monitoring the growth rate inhibition and the effect on the photosynthetic metabolism through morphological and ultrastructural analysis. The AgNPs were characterized by transmission electron microscopy and the effective diameter (dynamic light scattering) and zeta potential were determined. Plants were grown according to the environmental conditions recommended in ISO/DIS 20079 and then exposed to different concentrations of AgNPs. Inhibition of the growth rate was measured based on the EC50 and changes in the morphology, cellular structures and photosynthetic pigments were evaluated along with the silver accumulation. Although the results showed low growth inhibition when compared to other studies, significant damage to the ultrastructure, decreases in the photosynthetic pigments and starch grains, an increase in the phenolic compounds and physiological changes, such as a loss of color, were observed. Moreover, the accumulation of silver ions was noted and this could lead to bioamplification in consumer organisms, since duckweed belongs to the first level of the food chain.
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Affiliation(s)
- Cristina M Lalau
- Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina State, Florianópolis, Santa Catarina CEP: 88040-970, Brazil
| | - Carmen Simioni
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina State, Florianópolis, Santa Catarina CEP: 88049-900, CP 476, Brazil
| | - Denice S Vicentini
- Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina State, Florianópolis, Santa Catarina CEP: 88040-970, Brazil
| | - Luciane C Ouriques
- Plant Cell Biology Laboratory, Department of Cell Biology, Embryology and Genetics, Federal University of Santa Catarina State, Florianópolis, Santa Catarina CEP: 88049-900, CP 476, Brazil.
| | - Rodrigo A Mohedano
- Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina State, Florianópolis, Santa Catarina CEP: 88040-970, Brazil.
| | - Rodrigo C Puerari
- Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina State, Florianópolis, Santa Catarina CEP: 88040-970, Brazil
| | - William G Matias
- Laboratory of Environmental Toxicology, Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina State, Florianópolis, Santa Catarina CEP: 88040-970, Brazil.
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19
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Heikal YM, Şuţan NA, Rizwan M, Elsayed A. Green synthesized silver nanoparticles induced cytogenotoxic and genotoxic changes in Allium cepa L. varies with nanoparticles doses and duration of exposure. CHEMOSPHERE 2020; 243:125430. [PMID: 31995881 DOI: 10.1016/j.chemosphere.2019.125430] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Revised: 11/10/2019] [Accepted: 11/19/2019] [Indexed: 05/25/2023]
Abstract
This study aimed to test the ability of aqueous leaf extract of Eichhornia crassipes (Mart.) Solms-Laubach to synthesize silver nanoparticles (AgNPs) and to estimate the cytotoxicity and genotoxicity of AgNPs using Allium cepa assay. Fresh Eichhornia crassipes plants were collected from the Nile River of Egypt. The mixed-shaped structures of the biogenic AgNPs were qualitatively characterized by UV-vis spectroscopy, scanning electron microscopy and transmission electron microscopy. Selected area electron diffraction confirmed the crystalline structure of AgNPs and energy dispersive X-ray analysis clarified the presence of the elemental silver in a percentage of 83.29%. The biogenic AgNPs were quite stable (0.316) and negatively charged (-18.5 mV) based on the polydispersity index values. Allium cepa L. roots were exposed to several AgNPs concentrations (0, 5, 10, 20, 40 and 80 mg L-1) for different time intervals 2, 4 and 6 h. Cytotoxicity measured by both the spectrophotometric and macroscopic techniques recorded the maximum cell death of root tips of A. cepa after 20 mg L-1 treatment. The analysis of comet assay output images showed an alteration of DNA repair kinetics. The use of aqueous leaf extract of E. crassipes (Mart.) Solms-Laubach in the large-scale production of AgNPs by the method proposed in this study may be a step in improving the water loss in the Nile River. At the same time, a sensitive approach to the cytogenotoxicity of AgNPs must be considered.
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Affiliation(s)
- Yasmin M Heikal
- Department of Botany, Faculty of Science, Mansoura University, 35516, Mansoura, Egypt
| | - Nicoleta Anca Şuţan
- University of Piteşti, Faculty of Sciences, Physical Education and Informatics, Department of Natural Sciences, 1 Targu din Vale Str., 110040, Pitesti, Romania
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, Pakistan.
| | - Ashraf Elsayed
- Department of Botany, Faculty of Science, Mansoura University, 35516, Mansoura, Egypt
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Abdulla Abdulaziz Alshehddi L, Bokhari N. Influence of gold and silver nanoparticles on the germination and growth of Mimusops laurifolia seeds in the South-Western regions in Saudi Arabia. Saudi J Biol Sci 2019; 27:574-580. [PMID: 31889884 PMCID: PMC6933259 DOI: 10.1016/j.sjbs.2019.11.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/09/2019] [Accepted: 11/14/2019] [Indexed: 11/18/2022] Open
Abstract
In the Saudi Arabia, the tree of Mimusops laurifolia is suffering from a severe slow growth, in addition to their weakness of natural regeneration, and lack of artificial regeneration to improve their renewal growing. This tree is suffering from extinction because of the misuse of them. The aim of this study is to investigate the effect of gold (Au) particles and silver (Ag) nanoparticles to speed the germination and growth of Mimusops laurifolia trees. This study shows the importance of nanotechnology to contribute the topic of scientific researches and to enrich the scientific libraries of new and affective techniques in the field of physics and botany. We have tried to study the effect of gold and silver nanoparticles on the seeds of Mimusops laurifolia. After the treatments by these granules’ nanoparticles on germination, the result was completely negative and there was no germination and in all the transactions the germination rate were zero, even after the usage of Sulphuric acid to seeds to soften the test of the seed. This study concludes by following-up the leaf growth of seedlings of Mimusops laurifolia after the treatments of gold and silver nanoparticles, it was noted as positive impact of silver nanoparticles, and there was obvious increase in both number and size of the leaves compared with the seedlings, which has transmitted by gold nanoparticles and with the control seedling.
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Affiliation(s)
| | - Najat Bokhari
- Department of Botany and Microbiology, King Saud University, PO Box-22452, Riyadh 11495, Saudi Arabia
- Corresponding author.
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Dresler S, Hawrylak-Nowak B, Strzemski M, Wójciak-Kosior M, Sowa I, Hanaka A, Gołoś I, Skalska-Kamińska A, Cieślak M, Kováčik J. Metabolic Changes Induced by Silver Ions in Carlina acaulis. PLANTS 2019; 8:plants8110517. [PMID: 31744231 PMCID: PMC6918347 DOI: 10.3390/plants8110517] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 11/14/2019] [Accepted: 11/15/2019] [Indexed: 01/30/2023]
Abstract
Silver is one of the most toxic heavy metals for plants, inducing various toxic symptoms and metabolic changes. Here, the impact of Ag(I) on Carlina acaulis physiology and selected metabolites was studied using two Ag concentrations (1 or 10 µM) after 14 days of exposure. The higher concentration of Ag(I) evoked reduction of growth, while 1 µM Ag had a growth-promoting effect on root biomass. The translocation factor (<0.04) showed that Ag was mainly retained in the roots. The 1 µM Ag concentration increased the level of low-molecular-weight organic acids (LMWOAs), while 10 µM Ag depleted these compounds in the roots. The increased concentration of Ag(I) elevated the accumulation of phytochelatins (PCs) in the roots and reduced glutathione (GSH) in the shoots (but not in the roots). At 1 µM, Ag(I) elevated the level of phenolic and triterpene acids, while the 10 µM Ag treatment increased the carlina oxide content in the roots. The obtained results indicate an alteration of metabolic pathways of C. acaulis to cope with different levels of Ag(I) stress. Our data imply that the intracellular binding of Ag(I) and nonenzymatic antioxidants contribute to the protection against low concentrations of Ag ions.
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Affiliation(s)
- Sławomir Dresler
- Department of Plant Physiology and Biophysics, Institute of Biological Science, Maria Curie-Skłodowska University, 20-033 Lublin, Poland; (A.H.); (I.G.)
- Correspondence: (S.D.); (B.H.-N.); Tel.: +48-81-537-5078 (S.D.); +48-81-445-60-96 (B.H.-N.)
| | - Barbara Hawrylak-Nowak
- Department of Botany and Plant Physiology, Faculty of Environmental Biology, University of Life Sciences in Lublin, Akademicka 15, 20-950 Lublin, Poland
- Correspondence: (S.D.); (B.H.-N.); Tel.: +48-81-537-5078 (S.D.); +48-81-445-60-96 (B.H.-N.)
| | - Maciej Strzemski
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (M.S.); (M.W.-K.); (I.S.); (A.S.-K.)
| | - Magdalena Wójciak-Kosior
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (M.S.); (M.W.-K.); (I.S.); (A.S.-K.)
| | - Ireneusz Sowa
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (M.S.); (M.W.-K.); (I.S.); (A.S.-K.)
| | - Agnieszka Hanaka
- Department of Plant Physiology and Biophysics, Institute of Biological Science, Maria Curie-Skłodowska University, 20-033 Lublin, Poland; (A.H.); (I.G.)
| | - Iwona Gołoś
- Department of Plant Physiology and Biophysics, Institute of Biological Science, Maria Curie-Skłodowska University, 20-033 Lublin, Poland; (A.H.); (I.G.)
| | - Agnieszka Skalska-Kamińska
- Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland; (M.S.); (M.W.-K.); (I.S.); (A.S.-K.)
| | - Małgorzata Cieślak
- Łukasiewicz—Textile Research Institute, Scientific Department of Unconventional Technologies and Textiles, Brzezińska 5/15, 92-103 Łódź, Poland;
| | - Jozef Kováčik
- Department of Biology, University of Trnava, Priemyselná 4, 918 43 Trnava, Slovak Republic;
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