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Gamito G, Monteiro CJ, Dias MC, Oliveira H, Silva AM, Faustino MAF, Silva S. Impact of Fe 3O 4-porphyrin hybrid nanoparticles on wheat: Physiological and metabolic advance. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134243. [PMID: 38657506 DOI: 10.1016/j.jhazmat.2024.134243] [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: 10/04/2023] [Revised: 04/03/2024] [Accepted: 04/07/2024] [Indexed: 04/26/2024]
Abstract
Iron-magnetic nanoparticles (Fe-NMPs) are widely used in environmental remediation, while porphyrin-based hybrid materials anchored to silica-coated Fe3O4-nanoparticles (Fe3O4-NPs) have been used for water disinfection purposes. To assess their safety on plants, especially concerning potential environmental release, it was investigated for the first time, the impact on plants of a silica-coated Fe3O4-NPs bearing a porphyrinic formulation (FORM) - FORM@NMP. Additionally, FORM alone and the magnetic nanoparticles without FORM anchored (NH2@NMP) were used for comparison. Wheat (Triticum aestivum L.) was chosen as a model species and was subjected to three environmentally relevant doses during germination and tiller development through root application. Morphological, physiological, and metabolic parameters were assessed. Despite a modest biomass decrease and alterations in membrane properties, no major impairments in germination or seedling development were observed. During tiller phase, both Fe3O4-NPs increased leaf length, and photosynthesis exhibited varied impacts: both Fe3O4-NPs and FORM alone increased pigments; only Fe3O4-NPs promoted gas exchange; all treatments improved the photochemical phase. Regarding oxidative stress, lipid peroxidation decreased in FORM and FORM@NMP, yet with increased O2-• in FORM@NMP; total flavonoids decreased in NH2@NMP and antioxidant enzymes declined across all materials. Phenolic profiling revealed a generalized trend towards a decrease in flavones. In conclusion, these nanoparticles can modulate wheat physiology/metabolism without apparently inducing phytotoxicity at low doses and during short-time exposure. ENVIRONMENTAL IMPLICATION: Iron-magnetic nanoparticles are widely used in environmental remediation and fertilization, besides of new applications continuously being developed, making them emerging contaminants. Soil is a major sink for these nanoparticles and their fate and potential environmental risks in ecosystems must be addressed to achieve more sustainable environmental applications. Furthermore, as the reuse of treated wastewater for agricultural irrigation is being claimed, it is of major importance to disclose the impact on crops of the nanoparticles used for wastewater decontamination, such as those proposed in this work.
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Affiliation(s)
- Gonçalo Gamito
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Carlos Jp Monteiro
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Maria Celeste Dias
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; University of Coimbra, Centre for Functional Ecology, Associate Laboratory TERRA, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal.
| | - Helena Oliveira
- CESAM, Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Artur Ms Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Maria A F Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - Sónia Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
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Moshirian Farahi SM, Taghavizadeh Yazdi ME, Einafshar E, Akhondi M, Ebadi M, Azimipour S, Mahmoodzadeh H, Iranbakhsh A. The effects of titanium dioxide (TiO 2) nanoparticles on physiological, biochemical, and antioxidant properties of Vitex plant ( Vitex agnus - Castus L). Heliyon 2023; 9:e22144. [PMID: 38034643 PMCID: PMC10685375 DOI: 10.1016/j.heliyon.2023.e22144] [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: 05/30/2023] [Revised: 10/20/2023] [Accepted: 11/05/2023] [Indexed: 12/02/2023] Open
Abstract
Titanium dioxide nanoparticles (TiO2NPs) are widely used in agriculture in order to increase the yield and growth characteristics of plants. This study investigated the effects of TiO2NPs on photosynthetic pigments and several biochemical activities and antioxidant enzymes of the Vitex plant. Different concentrations of nanoparticles (0, 200, 400, 600 and 800 ppm) at five levels were sprayed on Vitex plants on the 30th day of the experiment. TiO2NPs at different concentrations had positive effects on root and shoot dry weight and a negative effect on leaf dry weight. The amount of chlorophyll increased with the concentration of TiO2NPs; however, the amount of chlorophyll b showed a decreasing trend while the total chlorophyll had a constant trend. The highest amount of soluble sugar was obtained in the treatment of 200 ppm nanoparticles. The application of TiO2NPs did not have any effect on the content of proline and soluble proteins of Vitex plant. The effects of foliar TiO2NPs, compared to the control, showed a significant increase in the activity of antioxidant enzymes. In general, TiO2NPs had a favorable effect on dry matter production and some antioxidant and biochemical properties of the Vitex plant.
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Affiliation(s)
| | | | - Elham Einafshar
- Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahdi Akhondi
- Department of Biology, Payame Noor University, Tehran, Iran
| | - Mostafa Ebadi
- Department of Biology, Damghan Branch, Islamic Azad University, Damghan, Iran
| | - Shahrouz Azimipour
- Faculty of Chemistry, Semnan Branch, Islamic Azad University, Semnan, Iran
| | - Homa Mahmoodzadeh
- Department of Biology, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Alireza Iranbakhsh
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Santás-Miguel V, Arias-Estévez M, Rodríguez-Seijo A, Arenas-Lago D. Use of metal nanoparticles in agriculture. A review on the effects on plant germination. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 334:122222. [PMID: 37482337 DOI: 10.1016/j.envpol.2023.122222] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/09/2023] [Accepted: 07/17/2023] [Indexed: 07/25/2023]
Abstract
Agricultural nanotechnology has become a powerful tool to help crops and improve agricultural production in the context of a growing world population. However, its application can have some problems with the development of harvests, especially during germination. This review evaluates nanoparticles with essential (Cu, Fe, Ni and Zn) and non-essential (Ag and Ti) elements on plant germination. In general, the effect of nanoparticles depends on several factors (dose, treatment time, application method, type of nanoparticle and plant). In addition, pH and ionic strength are relevant when applying nanoparticles to the soil. In the case of essential element nanoparticles, Fe nanoparticles show better results in improving nutrient uptake, improving germination, and the possibility of magnetic properties could favor their use in the removal of pollutants. In the case of Cu and Zn nanoparticles, they can be beneficial at low concentrations, while their excess presents toxicity and negatively affects germination. About nanoparticles of non-essential elements, both Ti and Ag nanoparticles can be helpful for nutrient uptake. However, their potential effects depend highly on the crop type, particle size and concentration. Overall, nanotechnology in agriculture is still in its early stages of development, and more research is needed to understand potential environmental and public health impacts.
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Affiliation(s)
- Vanesa Santás-Miguel
- Departamento de Bioloxía Vexetal e Ciencias do Solo, Área de Edafoloxía e Química Agrícola. Facultade de Ciencias, Universidade de Vigo, As Lagoas s/n, 32004, Ourense, Spain; Instituto de Agroecoloxía e Alimentación (IAA). Universidade de Vigo - Campus Auga, 32004, Ourense, Spain; Department of Biology, Microbial Ecology, Lund University, Ecology Building, Lund, SE-223 62, Sweden.
| | - Manuel Arias-Estévez
- Departamento de Bioloxía Vexetal e Ciencias do Solo, Área de Edafoloxía e Química Agrícola. Facultade de Ciencias, Universidade de Vigo, As Lagoas s/n, 32004, Ourense, Spain; Instituto de Agroecoloxía e Alimentación (IAA). Universidade de Vigo - Campus Auga, 32004, Ourense, Spain.
| | - Andrés Rodríguez-Seijo
- Departamento de Bioloxía Vexetal e Ciencias do Solo, Área de Edafoloxía e Química Agrícola. Facultade de Ciencias, Universidade de Vigo, As Lagoas s/n, 32004, Ourense, Spain; Instituto de Agroecoloxía e Alimentación (IAA). Universidade de Vigo - Campus Auga, 32004, Ourense, Spain.
| | - Daniel Arenas-Lago
- Departamento de Bioloxía Vexetal e Ciencias do Solo, Área de Edafoloxía e Química Agrícola. Facultade de Ciencias, Universidade de Vigo, As Lagoas s/n, 32004, Ourense, Spain; Instituto de Agroecoloxía e Alimentación (IAA). Universidade de Vigo - Campus Auga, 32004, Ourense, Spain.
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Qiang L, Zhao N, Liao K, Sun X, Wang Q, Jin H. Metabolomics and transcriptomics reveal the toxic mechanism of Cd and nano TiO 2 coexposure on rice (Oryza sativa L.). JOURNAL OF HAZARDOUS MATERIALS 2023; 453:131411. [PMID: 37062093 DOI: 10.1016/j.jhazmat.2023.131411] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 04/02/2023] [Accepted: 04/12/2023] [Indexed: 05/03/2023]
Abstract
Engineered nanoparticles (ENPs) can resist heavy metal toxicity in plants, but their coexposure still exhibits toxicity to plants compared to plants without exposure to ENPs and heavy metals. There have been few studies on the toxic mechanism of nano TiO2-heavy metal coexposure and the effect mechanism of nano TiO2 in plants. Thus, transcriptomics and metabolomics were used to study the toxic mechanism of rutile nano TiO2 or TiO2-Cd (rutile nano TiO2 and CdCl2 mixture) on rice (Oryza sativa L.). After 40 days of exposure, the plant height and root dry weight of rice were significantly decreased in the nano TiO2-Cd group compared to the blank group (nano TiO2 and CdCl2 free). After Cd treatment, 423 differentially expressed genes (DEGs) and 16 differential metabolites were identified. Nano TiO2 exposure induced significant regulation of 299 DEGs and 6 metabolites. After nano TiO2-Cd coexposure, 1660 DEGs and 181 differential metabolites were identified. Notably, the EDGs (e.g., chalcone isomerase and hydroxycinnamoyl transferase) and differential metabolites (e.g., chrysin and galangin) demonstrated the disruption of flavonoid biosynthesis in Cd-treated rice. After rice was exposed to nano TiO2, the DEGs were related to ribosome, whereas the differential metabolites were associated with pyruvate metabolism and valine, leucine, and isoleucine biosynthesis. Furthermore, 14 DEGs (e.g., asparaginyl-tRNA synthetase and methionyl-tRNA formyltransferase) involved in aminoacyl-tRNA biosynthetic pathways were significantly upregulated in rice treated with nano TiO2-Cd, in line with the changes in related metabolites (e.g., L-asparagine and 10-formyltetrahydrofolate). Our results show that it is necessary to pay close attention to the toxicity of nano TiO2-Cd coexposure in paddy ecosystems and use ENPs with caution to combat the phytotoxicity of heavy metals.
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Affiliation(s)
- Liwen Qiang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, PR China
| | - Nan Zhao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Kaizhen Liao
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Xichao Sun
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, PR China
| | - Qiang Wang
- Agro-Environmental Protection Institute, Ministry of Agriculture and Rural Affairs, Tianjin 300191, PR China
| | - Hangbiao Jin
- Key Laboratory of Microbial Technology for Industrial Pollution Control of Zhejiang Province, College of Environment, Zhejiang University of Technology, Hangzhou 310014, PR China.
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5
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Páramo L, Feregrino-Pérez AA, Vega-González M, Escobar-Alarcón L, Esquivel K. Medicago sativa L. Plant Response against Possible Eustressors (Fe, Ag, Cu)-TiO 2: Evaluation of Physiological Parameters, Total Phenol Content, and Flavonoid Quantification. PLANTS (BASEL, SWITZERLAND) 2023; 12:659. [PMID: 36771743 PMCID: PMC9920219 DOI: 10.3390/plants12030659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/29/2022] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
The present study analyzed Medicago sativa L. crops irrigated by TiO2 in the anatase phase and TiO2 doped with Ag, Fe, and Cu ions at 0.1%w synthesized using the sol-gel method (SG) and the sol-gel method coupled with microwave (Mw-SG). The materials were added to the irrigation water at different concentrations (50, 100, and 500 ppm). Stress induction by nanomaterials was observed by measuring stem morphology, chlorophyll index, total phenols and flavonoids, and antioxidant activity through the DPPH (2,2-diphenyl-1-picrylhydrazy) radical inhibition assay. The nanomaterial treatments caused statistically significant reductions in parameters such as stem length, leaf size, and chlorophyll index and increases in total phenol content and DPPH inhibition percentage. However, the observed effects did not show clear evidence regarding the type of nanomaterial used, its synthesis methodology, or a concentration-dependent response. By generally grouping the results obtained to the type of dopant used and the synthesis method, the relationship between them was determined employing a two-way ANOVA. It was observed that the dopant factors, synthesis, and interaction were relevant for most treatments. Additionally, the addition of microwaves in the synthesis method resulted in the largest number of treatments with a significant increase in the total content of phenols and the % inhibition compared to the traditional sol-gel synthesis. In contrast, parameters such as stem size and chlorophyll index were affected under different treatments from both synthesis methods.
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Affiliation(s)
- Luis Páramo
- División de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro, Cerro de las Campanas, Santiago de Querétaro 76010, Mexico
| | - Ana Angélica Feregrino-Pérez
- División de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro, Cerro de las Campanas, Santiago de Querétaro 76010, Mexico
| | - Marina Vega-González
- Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla. Blvd. Juriquilla, 3001, Santiago de Querétaro 76230, Mexico
| | - Luis Escobar-Alarcón
- Departamento de Física, ININ, Carr. México-Toluca, La Marquesa, Ocoyoacac 52750, Mexico
| | - Karen Esquivel
- División de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro, Cerro de las Campanas, Santiago de Querétaro 76010, Mexico
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6
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Silva S, Dias MC, Pinto DCGA, Silva AMS. Metabolomics as a Tool to Understand Nano-Plant Interactions: The Case Study of Metal-Based Nanoparticles. PLANTS (BASEL, SWITZERLAND) 2023; 12:491. [PMID: 36771576 PMCID: PMC9921902 DOI: 10.3390/plants12030491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/15/2023] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Metabolomics is a powerful tool in diverse research areas, enabling an understanding of the response of organisms, such as plants, to external factors, their resistance and tolerance mechanisms against stressors, the biochemical changes and signals during plant development, and the role of specialized metabolites. Despite its advantages, metabolomics is still underused in areas such as nano-plant interactions. Nanoparticles (NPs) are all around us and have a great potential to improve and revolutionize the agri-food sector and modernize agriculture. They can drive precision and sustainability in agriculture as they can act as fertilizers, improve plant performance, protect or defend, mitigate environmental stresses, and/or remediate soil contaminants. Given their high applicability, an in-depth understanding of NPs' impact on plants and their mechanistic action is crucial. Being aware that, in nano-plant interaction work, metabolomics is much less addressed than physiology, and that it is lacking a comprehensive review focusing on metabolomics, this review gathers the information available concerning the metabolomic tools used in studies focused on NP-plant interactions, highlighting the impact of metal-based NPs on plant metabolome, metabolite reconfiguration, and the reprogramming of metabolic pathways.
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Affiliation(s)
- Sónia Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Maria Celeste Dias
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal
| | - Diana C. G. A. Pinto
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Artur M. S. Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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7
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Silva S, Dias MC, Silva AMS. Titanium and Zinc Based Nanomaterials in Agriculture: A Promising Approach to Deal with (A)biotic Stresses? TOXICS 2022; 10:toxics10040172. [PMID: 35448432 PMCID: PMC9033035 DOI: 10.3390/toxics10040172] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/23/2022] [Accepted: 03/29/2022] [Indexed: 02/01/2023]
Abstract
Abiotic stresses, such as those induced by climatic factors or contaminants, and biotic stresses prompted by phytopathogens and pests inflict tremendous losses in agriculture and are major threats to worldwide food security. In addition, climate changes will exacerbate these factors as well as their negative impact on crops. Drought, salinity, heavy metals, pesticides, and drugs are major environmental problems that need deep attention, and effective and sustainable strategies to mitigate their effects on the environment need to be developed. Besides, sustainable solutions for agrocontrol must be developed as alternatives to conventional agrochemicals. In this sense, nanotechnology offers promising solutions to mitigate environmental stress effects on plants, increasing plant tolerance to the stressor, for the remediation of environmental contaminants, and to protect plants against pathogens. In this review, nano-sized TiO2 (nTiO2) and ZnO (nZnO) are scrutinized, and their potential to ameliorate drought, salinity, and xenobiotics effects in plants are emphasized, in addition to their antimicrobial potential for plant disease management. Understanding the level of stress alleviation in plants by these nanomaterials (NM) and relating them with the application conditions/methods is imperative to define the most sustainable and effective approaches to be adopted. Although broad-spectrum reviews exist, this article provides focused information on nTiO2 and nZnO for improving our understanding of the ameliorative potential that these NM show, addressing the gaps in the literature.
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Affiliation(s)
- Sónia Silva
- Associated Laboratory for Green Chemistry of the Network of Chemistry and Technology, Department of Chemistry, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal;
- Correspondence: ; Tel.: +351-234-370-766
| | - Maria Celeste Dias
- Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal;
| | - Artur M. S. Silva
- Associated Laboratory for Green Chemistry of the Network of Chemistry and Technology, Department of Chemistry, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal;
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8
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Aqeel U, Aftab T, Khan MMA, Naeem M, Khan MN. A comprehensive review of impacts of diverse nanoparticles on growth, development and physiological adjustments in plants under changing environment. CHEMOSPHERE 2022; 291:132672. [PMID: 34756946 DOI: 10.1016/j.chemosphere.2021.132672] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 10/12/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
The application of nanotechnology in agriculture includes the use of nanofertilizers, nanopesticides, and nanoherbicides that enhance plant nutrition without disturbing the soil texture and protect it against microbial infections. Thus, nanotechnology maintains the plant's health by maintaining its soil health. The use of nanoparticles (NPs) in agriculture reduces the chemical spread and nutrient loss and boosts crop yield and productivity. Effect of NPs varies with their applied concentrations, physiochemical properties, and plant species. Various NPs have an impact on the plant to increase biomass productivity, germination rate and their physiology. Also, NPs change the plant molecular mechanisms by altering gene expression. Metal and non-metal oxides of NPs (Au, Ag, ZnO, Fe2O3, TiO2, SiO2, Al2O3, Se, carbon nanotubes, quantum dots) exert an important role in plant growth and development and perform an essential role in stress amelioration. On the other hand, other effects of NPs have also been well investigated by observing their role in growth suppression and inhibition of chlorophyll and photosynthetic efficiency. In this review, we addressed a description of studies that have been made to understand the effects of various kind of NPs, their translocation and interaction with the plants. Also, the phytoremediation approaches of contaminated soil with combined use of NPs for sustainable agriculture is covered.
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Affiliation(s)
- Umra Aqeel
- Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
| | - Tariq Aftab
- Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
| | - M Masroor A Khan
- Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India
| | - M Naeem
- Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002, India.
| | - M Nasir Khan
- Department of Biology, Faculty of Science, College of Haql, University of Tabuk, Tabuk, Saudi Arabia
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Co-Application of 24-Epibrassinolide and Titanium Oxide Nanoparticles Promotes Pleioblastus pygmaeus Plant Tolerance to Cu and Cd Toxicity by Increasing Antioxidant Activity and Photosynthetic Capacity and Reducing Heavy Metal Accumulation and Translocation. Antioxidants (Basel) 2022; 11:antiox11030451. [PMID: 35326101 PMCID: PMC8944545 DOI: 10.3390/antiox11030451] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/18/2022] [Accepted: 02/20/2022] [Indexed: 12/26/2022] Open
Abstract
The integrated application of nanoparticles and phytohormones was explored in this study as a potentially eco-friendly remediation strategy to mitigate heavy metal toxicity in a bamboo species (Pleioblastus pygmaeus) by utilizing titanium oxide nanoparticles (TiO2-NPs) and 24-epibrassinolide (EBL). Hence, an in vitro experiment was performed to evaluate the role of 100 µM TiO2 NPs and 10−8 M 24-epibrassinolide individually and in combination under 100 µM Cu and Cd in a completely randomized design using four replicates. Whereas 100 µM of Cu and Cd reduced antioxidant activity, photosynthetic capacity, plant tolerance, and ultimately plant growth, the co-application of 100 µM TiO2 NPs and 10−8 M EBL+ heavy metals (Cu and Cd) resulted in a significant increase in plant antioxidant activity (85%), nonenzymatic antioxidant activities (47%), photosynthetic pigments (43%), fluorescence parameters (68%), plant growth (39%), and plant tolerance (41%) and a significant reduction in the contents of malondialdehyde (45%), hydrogen peroxide (36%), superoxide radical (62%), and soluble protein (28%), as well as the percentage of electrolyte leakage (49%), relative to the control. Moreover, heavy metal accumulation and translocation were reduced by TiO2 NPs and EBL individually and in combination, which could improve bamboo plant tolerance.
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Mariz-Ponte N, Dias CM, Silva AMS, Santos C, Silva S. Low levels of TiO 2-nanoparticles interact antagonistically with Al and Pb alleviating their toxicity. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 167:1-10. [PMID: 34315106 DOI: 10.1016/j.plaphy.2021.07.021] [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: 02/11/2021] [Revised: 07/19/2021] [Accepted: 07/20/2021] [Indexed: 06/13/2023]
Abstract
The contamination and bioavailability of deleterious metals in arable soils significantly limits crop development and yield. Aiming at mitigating Pb- and Al-induced phytotoxicity, this work explores the use of P25 titanium dioxide nanoparticles (nTiO2) in soil amendments. For that, Lactuca sativa L. plants were germinated and grown in the presence of 10 ppm Pb or 50 ppm Al, combined or not with 5 ppm nTiO2. Growth parameters, as well as endpoints of the redox state [cell relative membrane permeability (RMP), thiobarbituric acid reactive substances content, total phenolic content and photosynthesis (sugars and pigments levels, chlorophyll a fluorescence and gas exchange), were evaluated. Concerning Al, nTiO2 treatment alleviated the impairments induced in germination rate, seedling length, water content, RMP, stomatal conductance (gs), intercellular CO2 (Ci), and net CO2 assimilation rate (PN). It increased anthocyanins contents and effective efficiency of photosystem II (ΦPSII). In Pb-exposed plants, nTiO2 amendment mitigated the effects in RMP, PN, gs, and Ci. It also increased the pigment contents and the transpiration rate (E) comparatively to the control without nTiO2. These results clearly highlight the high potential of low doses of nTiO2 in alleviating metal phytotoxicity, particularly the one of Pb. Additionally, further research should explore the use of these nanoparticles in agricultural soil amendments.
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Affiliation(s)
- Nuno Mariz-Ponte
- Department of Biology, Faculty of Sciences, LAQV-REQUIMTE, University of Porto, Rua Do Campo Alegre, 4169-007, Porto, Portugal.
| | - Celeste M Dias
- Department of Life Sciences & CFE, Faculty of Sciences and Technologies, University of Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal.
| | - Artur M S Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| | - Conceição Santos
- Department of Biology, Faculty of Sciences, LAQV-REQUIMTE, University of Porto, Rua Do Campo Alegre, 4169-007, Porto, Portugal.
| | - Sónia Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
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11
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Ekner-Grzyb A, Chmielowska-Bąk J, Szczeszak A. Influence of GdVO 4:Eu 3+ Nanocrystals on Growth, Germination, Root Cell Viability and Oxidative Stress of Wheat ( Triticum aestivum L.) Seedlings. PLANTS 2021; 10:plants10061187. [PMID: 34200921 PMCID: PMC8230434 DOI: 10.3390/plants10061187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/05/2021] [Accepted: 06/07/2021] [Indexed: 12/21/2022]
Abstract
The increasing application of lanthanide-doped nanocrystals (LDNCs) entails the risk of a harmful impact on the natural environment. Therefore, in the presented study the influence of gadolinium orthovanadates doped with Eu3+ (GdVO4:Eu3) nanocrystals on wheat (Triticum aestivum L.), chosen as a model plant species, was investigated. The seeds were grown in Petri dishes filled with colloids of LDNCs at the concentrations of 0, 10, 50 and 100 µg/mL. The plants’ growth endpoints (number of roots, roots length, roots mass, hypocotyl length and hypocotyl mass) and germination rate were not significantly changed after the exposure to GdVO4:Eu3+ nanocrystals at all used concentrations. The presence of LDNCs also had no effect on oxidative stress intensity, which was determined on the basis of the amount of lipid peroxidation product (thiobarbituric acid reactive substances; TBARS) in the roots. Similarly, TTC (tetrazolium chloride) assay did not show any differences in cells’ viability. However, root cells of the treated seedlings contained less Evans Blue (EB) when compared to the control. The obtained results, on the one hand, suggest that GdVO4:Eu3+ nanocrystals are safe for plants in the tested concentrations, while on the other hand they indicate that LDNCs may interfere with the functioning of the root cell membrane.
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Affiliation(s)
- Anna Ekner-Grzyb
- Department of Plant Ecophysiology, Faculty of Biology, Institute of Experimental Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland;
- Correspondence: ; Tel.: +48-61-829-5811
| | - Jagna Chmielowska-Bąk
- Department of Plant Ecophysiology, Faculty of Biology, Institute of Experimental Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland;
| | - Agata Szczeszak
- Department of Rare Earths, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland;
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12
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The Investigation of TiO2 NPs Effect as a Wastewater Treatment to Mitigate Cd Negative Impact on Bamboo Growth. SUSTAINABILITY 2021. [DOI: 10.3390/su13063200] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The recent emerging evidence reveals that titanium dioxide nanoparticles (TiO2 NPs) can be used as a wastewater treatment. This study provides new information about the possible detoxification role of TiO2 NPs as a wastewater treatment in plants under heavy metal stress, with an emphasis on the mechanisms involved. Here, we investigated the effects of TiO2 NPs as one wastewater treatment on a bamboo species (Arundinaria pygmaea L.) under in vitro Cadmium (Cd) toxicity conditions. A factorial experiment was conducted in a completely randomized design with four replications of four concentrations of Cd (50, 100, 200, and 300 µM) alone and in combination with 100 and 200 µM TiO2 NPs as two wastewater treatments, as well as a control treatment. The results indicated that TiO2 NPs concentrations enhanced enzymatic and non-enzymatic antioxidant activities and proline accumulation as well as reducing hydrogen peroxide (H2O2), superoxide radical (O2•−), and malondialdehyde (MDA) levels, which led to improved photosynthetic parameters with an eventual increase in plant biomass as compared to the control treatment. Therefore, TiO2 NPs improved the photosynthetic parameters of bamboo under Cd toxicity, which led to an increase in plant biomass. We concluded that the wastewater treatments of TiO2 NPs improved bamboo biomass through the scavenging of reactive oxygen species (ROS) compounds (H2O2 and O2•−), which was induced by the stimulation of the antioxidant capacity of the plant. TiO2 also protected cell membranes by reducing lipoperoxidation in bamboo under Cd toxicity. The concentration of 200 µM TiO2 NPs had the most impact in reducing Cd toxicity.
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13
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Nishiyama K, Koshimae Y, Ueda Y, Kodama M, Ueno M. Uptake of Metal (Zn, Y, Ti) Oxide Nanoparticles by Poaceae and Cucurbitaceae Plants Based On Metal Properties and Surface Conditions. J Phys Chem B 2021; 125:1755-1759. [PMID: 33565877 DOI: 10.1021/acs.jpcb.0c10101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal nanoparticles (NPs) may serve as biomarkers, as the surfaces can be chemically modified to enable an analysis of several biosystems, including plant pathogenesis. We supplied metal oxide NPs including those of ZnO, TiO2, Y2O3, and Y2O3 doped with europium to plants of eight species of the Poaceae and Cucurbitaceae families. The plants were grown using hydroponics, where NPs were incorporated into the cultivation media. Energy-dispersive X-ray spectroscopy was used to detect the uptake of NPs by the plant in regions of the root, stem, and leaf. Results show that ZnO NPs were taken up more readily by the plants compared to other NPs. Unmodified NPs were only delivered up till the stems and not the leaves; however, when the surfaces were modified using photoinduced hydrophilization supplemented with poly(ethylene glycol), NPs were delivered to the leaves of plants. It is suggested that plants readily take up metals such as zinc that function as nutrients. Additionally, hydrophilization of NP surfaces using UV irradiation enhances uptake, where modified ZnO and TiO2 NPs may be delivered to the leaves. These findings may be used to design biomarker systems for detecting tissue damage and infections in various crops.
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Affiliation(s)
- Katsura Nishiyama
- Department of Environmental Technology, Meijo University, Tempaku, Nagoya 468-8502, Japan
| | - Yuhi Koshimae
- Department of Environmental Technology, Meijo University, Tempaku, Nagoya 468-8502, Japan
| | - Yuki Ueda
- Department of Environmental Technology, Meijo University, Tempaku, Nagoya 468-8502, Japan
| | - Mayuko Kodama
- Department of Environmental Technology, Meijo University, Tempaku, Nagoya 468-8502, Japan
| | - Makoto Ueno
- Faculty of Life and Environmental Science, Shimane University, Matsue 690-8504, Japan
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14
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Silva S, Ribeiro TP, Santos C, Pinto DCGA, Silva AMS. TiO 2 nanoparticles induced sugar impairments and metabolic pathway shift towards amino acid metabolism in wheat. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:122982. [PMID: 32534391 DOI: 10.1016/j.jhazmat.2020.122982] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/06/2020] [Accepted: 05/16/2020] [Indexed: 06/11/2023]
Abstract
TiO2-nanoparticles (TiO2-NP) have the potential to impair plant development. Nevertheless, the metabolic processes behind the physiological responses to TiO2-NP are still far from being fully understood. In this study, Triticum aestivum plants were exposed for 21 days to different concentrations (0; 5; 50; 150 mg L-1) of TiO2-NP (P25). After treatment, the metabolite profiles of roots and leaves were analysed. The content of >70 % of the identified metabolites changed in response to P25 and the impact on metabolic pathways increased with TiO2-NP dose, with leaves showing higher alterations. Roots up-regulated monosaccharides, azelaic acid, and γ-aminobutanoic acid and triggered the tyrosine metabolism, whereas leaves up-regulated the metabolisms of reserve sugars and tocopherol, and the phenylalanine and tryptophan pathways. Both organs (mainly leaves) up-regulated the aspartate family pathway together with serine, alanine and valine metabolisms and the glycerolipids' biosynthesis. In addition, the citrate and glyoxylate metabolisms were down-regulated in both organs (highest dose). Sugar biosynthesis breakdown, due to photosynthetic disturbances, shifted the cell metabolism to use amino acids as an alternative energy source, and both ROS and sugars worked as signalling molecules activating organ dependent antioxidant responses. Concluding, these NP-pollutants severely impact multiple crop metabolic pathways and may ultimately compromise plant performance.
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Affiliation(s)
- Sónia Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Tiago P Ribeiro
- i3S-Instituto de Investigação e Inovação em Saúde, University of Porto, Rua Alfredo Allen, 4200-135 Porto, Portugal; INEB-Instituto de Engenharia Biomédica, University of Porto, Rua Alfredo Allen, 4200-135 Porto, Portugal.
| | - Conceição Santos
- Department of Biology, Faculty of Sciences, LAQV-REQUIMTE, University of Porto, Rua Do Campo Alegre 4169-007, Porto, Portugal.
| | - Diana C G A Pinto
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Artur M S Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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15
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Li J, Li Y, Tang S, Zhang Y, Zhang J, Li Y, Xiong L. Toxicity, uptake and transport mechanisms of dual-modal polymer dots in penny grass (Hydrocotyle vulgaris L.). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 265:114877. [PMID: 32531651 DOI: 10.1016/j.envpol.2020.114877] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/07/2020] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
The use of polymers such as plastic has become an important part of daily life, and in aqueous environments, these polymers are considered as pollutants. When macropolymers are reduced to the nanoscale, their small particle size and large specific surface area facilitate their uptake by plants, which has a significant impact on aquatic plants. Therefore, it is essential to study the pollution of nanoscale polymers in the aquatic environment. In this work, we prepared nanoscale polymer dots (Pdots) and explored their toxicity, uptake and transport mechanisms in penny grass. From toxicological studies, in the absence of other nutrients, the cell structure, physiological parameters (total soluble protein and chlorophyll) and biochemical parameters (malondialdehyde) do not show significant changes over at least five days. Through in vivo fluorescence and photoacoustic (PA) imaging, the transport location can be visually detected accurately, and the transport rate can be analyzed without destroying the plants. Moreover, through ex vivo fluorescence imaging, we found that different types of Pdots have various uptake and transport mechanisms in stems and blades. It may be due to the differences in ligands, particle sizes, and oil-water partition coefficients of Pdots. By understanding how Pdots interact with plants, a corresponding method can be developed to prevent them from entering plants, thus avoiding the toxicity from accumulation. Therefore, the results of this study also provide the basis for subsequent prevention work.
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Affiliation(s)
- Jingru Li
- Shanghai Med-X Center for Medical Equipment and Technology, School of Biomedical Engineering, Shanghai JiaoTong University, Shanghai, PR China
| | - Yao Li
- Shanghai Med-X Center for Medical Equipment and Technology, School of Biomedical Engineering, Shanghai JiaoTong University, Shanghai, PR China
| | - Shiyi Tang
- Shanghai Med-X Center for Medical Equipment and Technology, School of Biomedical Engineering, Shanghai JiaoTong University, Shanghai, PR China
| | - Yufan Zhang
- Shanghai Med-X Center for Medical Equipment and Technology, School of Biomedical Engineering, Shanghai JiaoTong University, Shanghai, PR China
| | - Juxiang Zhang
- Shanghai Med-X Center for Medical Equipment and Technology, School of Biomedical Engineering, Shanghai JiaoTong University, Shanghai, PR China
| | - Yuqiao Li
- Shanghai Med-X Center for Medical Equipment and Technology, School of Biomedical Engineering, Shanghai JiaoTong University, Shanghai, PR China
| | - Liqin Xiong
- Shanghai Med-X Center for Medical Equipment and Technology, School of Biomedical Engineering, Shanghai JiaoTong University, Shanghai, PR China.
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16
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Bellani L, Muccifora S, Barbieri F, Tassi E, Ruffini Castiglione M, Giorgetti L. Genotoxicity of the food additive E171, titanium dioxide, in the plants Lens culinaris L. and Allium cepa L. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2020; 849:503142. [PMID: 32087856 DOI: 10.1016/j.mrgentox.2020.503142] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 01/10/2023]
Abstract
E171 (titanium dioxide, TiO2), an authorized foods and beverage additive, is also used in food packaging and in pharmaceutical and cosmetic preparations. E171 is considered to be an inert and non-digestible material, not storable in animal tissues, but the possible presence of TiO2 nanoparticles (NP) may present a risk to human health and the environment. We determined the presence of 15% TiO2 NP in a commercial E171 food additive product, by electron microscopy. The biological effects of E171 were assessed in Lens culinaris and Allium cepa for the following endpoints: percentage of germination, root elongation, mitotic index, presence of chromosomal abnormalities, and micronuclei. The results indicated low phytotoxicity but dose-dependent genotoxicity. We also observed internalization of TiO2 NP and ultrastructural alterations in the root systems.
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Affiliation(s)
- Lorenza Bellani
- Department of Life Sciences, University of Siena, via A. Moro 2, 53100, Siena, Italy; Institute of Agricultural Biology and Biotechnology, National Research Council (IBBA-CNR), via G. Moruzzi 1, 56124, Pisa, Italy
| | - Simonetta Muccifora
- Department of Life Sciences, University of Siena, via A. Moro 2, 53100, Siena, Italy
| | - Francesco Barbieri
- Department of Life Sciences, University of Siena, via A. Moro 2, 53100, Siena, Italy
| | - Eliana Tassi
- Research Institute on Terrestrial Ecosystems, National Research Council (IRET-CNR), via G. Moruzzi 1, 56124, Pisa, Italy
| | | | - Lucia Giorgetti
- Institute of Agricultural Biology and Biotechnology, National Research Council (IBBA-CNR), via G. Moruzzi 1, 56124, Pisa, Italy.
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17
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Silva S, Ferreira de Oliveira JMP, Dias MC, Silva AMS, Santos C. Antioxidant mechanisms to counteract TiO 2-nanoparticles toxicity in wheat leaves and roots are organ dependent. JOURNAL OF HAZARDOUS MATERIALS 2019; 380:120889. [PMID: 31325695 DOI: 10.1016/j.jhazmat.2019.120889] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 07/09/2019] [Accepted: 07/10/2019] [Indexed: 05/25/2023]
Abstract
Nanoparticles (NP) bioactivity is under deep scrutiny. In this work, the antioxidant response to TiO2-NP in wheat (Triticum aestivum) was determined. For that, enzymatic and the non-enzymatic antioxidants were evaluated in plants exposed to the P25 anatase:rutile material composed of TiO2-NP and under environmentally realistic doses (0; 5; 50; 150 mg/L for 20 days). Shoot but not root growth was reduced. In leaves, thiol metabolism and ascorbate accumulation were the preferred route whereas in roots the pre-existing antioxidant capacity was preferentially utilized. Both leaves and roots showed increased glutathione reductase and dehydroascorbate reductase activities and decreased ascorbate peroxidase activity. Roots, nevertheless, presented higher enzymatic basal levels than leaves. On the other hand, when examining non-enzymatic antioxidants, the ratio of reduced-to-oxidized glutathione (GSH/GSSG) increased in leaves and decreased in roots. Exposed leaves also presented higher total ascorbate accumulation compared to roots. TiO2-NP exposure down regulated, with more prominence in roots, antioxidant enzyme genes encoding catalase, ascorbate peroxidase, monodehydroascorbate reductase and dehydroascorbate reductase. In leaves, superoxide dismutase gene expression was increased. All data pinpoint to TiO2-NP toxicity above 5 mg/L, with aerial parts being more susceptible, which draws concerns on the safety doses for the use of these NPs in agricultural practices.
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Affiliation(s)
- Sónia Silva
- Department of Chemistry, QOPNA & LAQV-REQUIMTE, University of Aveiro, 3810-193, Aveiro, Portugal; CESAM, University of Aveiro, 3810-193, Aveiro, Portugal.
| | - José Miguel P Ferreira de Oliveira
- LAQV, REQUIMTE, Laboratory of Applied Chemistry, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, 4050-313, Porto, Portugal
| | - Maria Celeste Dias
- Department of Chemistry, QOPNA & LAQV-REQUIMTE, University of Aveiro, 3810-193, Aveiro, Portugal; Department of Life Sciences & CFE, Faculty of Sciences and Technologies, University of Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal
| | - Artur M S Silva
- Department of Chemistry, QOPNA & LAQV-REQUIMTE, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Conceição Santos
- Department of Biology, Faculty of Sciences, LAQV-REQUIMTE, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
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18
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Shull TE, Kurepa J, Smalle JA. Anatase TiO 2 Nanoparticles Induce Autophagy and Chloroplast Degradation in Thale Cress ( Arabidopsis thaliana). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:9522-9532. [PMID: 31356742 DOI: 10.1021/acs.est.9b01648] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The extensive use of TiO2 nanoparticles and their subsequent release into the environment have posed an important question about the effects of this nanomaterial on ecosystems. Here, we analyzed the link between the damaging effects of reactive oxygen species generated by TiO2 nanoparticles and autophagy, a housekeeping mechanism that removes damaged cellular constituents. We show that TiO2 nanoparticles induce autophagy in the plant model system Arabidopsis thaliana and that autophagy is an important mechanism for managing TiO2 nanoparticle-induced oxidative stress. Additionally, we find that TiO2 nanoparticles induce oxidative stress predominantly in chloroplasts and that this chloroplastic stress is mitigated by autophagy. Collectively, our results suggest that photosynthetic organisms are particularly susceptible to TiO2 nanoparticle toxicity.
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Affiliation(s)
- Timothy E Shull
- Department of Plant and Soil Sciences , University of Kentucky , Lexington , Kentucky 40546 United States
| | - Jasmina Kurepa
- Department of Plant and Soil Sciences , University of Kentucky , Lexington , Kentucky 40546 United States
| | - Jan A Smalle
- Department of Plant and Soil Sciences , University of Kentucky , Lexington , Kentucky 40546 United States
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19
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Chen Y, Wu N, Mao H, Zhou J, Su Y, Zhang Z, Zhang H, Yuan S. Different toxicities of nanoscale titanium dioxide particles in the roots and leaves of wheat seedlings. RSC Adv 2019; 9:19243-19252. [PMID: 35516862 PMCID: PMC9065167 DOI: 10.1039/c9ra02984b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 06/07/2019] [Indexed: 11/21/2022] Open
Abstract
Despite previous studies on exploring the environmental effects of titanium dioxide nanoparticles particle (nTiO2) on plants, the detailed impacts of nTiO2on the antioxidant system and photosynthesis of plants is still not well understood.
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Affiliation(s)
- Yanger Chen
- College of Life Science
- Sichuan Agricultural University
- Ya'an 625014
- China
| | - Nan Wu
- College of Life Science
- Sichuan Agricultural University
- Ya'an 625014
- China
| | - Haotian Mao
- College of Life Science
- Sichuan Agricultural University
- Ya'an 625014
- China
| | - Jun Zhou
- College of Life Science
- Sichuan Agricultural University
- Ya'an 625014
- China
| | - Yanqiu Su
- College of Life Science
- Sichuan University
- Chengdu 610064
- China
| | - Zhongwei Zhang
- College of Resources
- Sichuan Agricultural University
- Chengdu 611130
- China
| | - Huaiyu Zhang
- College of Life Science
- Sichuan Agricultural University
- Ya'an 625014
- China
| | - Shu Yuan
- College of Resources
- Sichuan Agricultural University
- Chengdu 611130
- China
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20
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Dias MC, Santos C, Pinto G, Silva AMS, Silva S. Titanium dioxide nanoparticles impaired both photochemical and non-photochemical phases of photosynthesis in wheat. PROTOPLASMA 2019; 256:69-78. [PMID: 29961120 DOI: 10.1007/s00709-018-1281-6] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 06/18/2018] [Indexed: 05/20/2023]
Abstract
Titanium dioxide nanoparticles (TiO2-NP) are increasingly being proposed for nanoagriculture but their effect on photosynthesis is limited and contradictory, mostly regarding putative chronical effects associated to the exposure to the commercial P25 formulation (anatase:rutile). This research aims at evaluating how chronical exposure to P25-NP affect photosynthetic processes in Triticum aestivum. Wheat plants were exposed (from the germination stage) to 0, 5, 50, and 150 mg L-1 P25-NP for 20 days. P25-NP impaired both light-dependent and -independent phases of photosynthesis, decreased chlorophyll a content, maximal and effective efficiency of PSII, net photosynthetic rate, transpiration rate, stomatal conductance, intercellular CO2 concentration, and starch content. On the other hand, no effects were observed in photochemical and in non-photochemical quenching values, on total soluble sugar (TSS) content or in RuBisCO activity. Our results support that the induced decay in chlorophyll a content compromised the electron transport through PSII and that stomatal limitations impaired CO2 assimilation. The decline of starch content seems to be a consequence of its degradation as a mechanism to maintain the TSS levels. Consequently, we propose that photosynthetic related endpoints are sensitive and valuable biomarkers to assess TiO2-NP toxicity.
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Affiliation(s)
- Maria Celeste Dias
- Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
- Department of Life Sciences and CFE, Faculty of Sciences and Technologies, University of Coimbra, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal
| | - Conceição Santos
- Department of Biology, Faculty of Sciences, LAQV/REQUIMTE, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - Glória Pinto
- Department Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
- CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Artur M S Silva
- Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Sónia Silva
- Department of Chemistry and QOPNA, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
- CESAM, University of Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
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