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Dmitrieva VA, Tyutereva EV, Voitsekhovskaja OV. What can reactive oxygen species (ROS) tell us about the action mechanism of herbicides and other phytotoxins? Free Radic Biol Med 2024; 220:92-110. [PMID: 38663829 DOI: 10.1016/j.freeradbiomed.2024.04.233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/09/2024]
Abstract
Reactive oxygen species (ROS) are formed in plant cells continuously. When ROS production exceeds the antioxidant capacity of the cells, oxidative stress develops which causes damage of cell components and may even lead to the induction of programmed cell death (PCD). The levels of ROS production increase upon abiotic stress, but also during pathogen attack in response to elicitors, and upon application of toxic compounds such as synthetic herbicides or natural phytotoxins. The commercial value of many synthetic herbicides is based on weed death as result of oxidative stress, and for a number of them, the site and the mechanism of ROS production have been characterized. This review summarizes the current knowledge on ROS production in plants subjected to different groups of synthetic herbicides and natural phytotoxins. We suggest that the use of ROS-specific fluorescent probes and of ROS-specific marker genes can provide important information on the mechanism of action of these toxins. Furthermore, we propose that, apart from oxidative damage, elicitation of ROS-induced PCD is emerging as one of the important processes underlying the action of herbicides and phytotoxins.
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Affiliation(s)
- Valeria A Dmitrieva
- Laboratory of Molecular and Ecological Physiology, Komarov Botanical Institute of the Russian Academy of Sciences, Saint Petersburg, 197022, Russia; Laboratory of Phytotoxicology and Biotechnology, All-Russian Institute of Plant Protection, Saint Petersburg, 196608, Russia
| | - Elena V Tyutereva
- Laboratory of Molecular and Ecological Physiology, Komarov Botanical Institute of the Russian Academy of Sciences, Saint Petersburg, 197022, Russia
| | - Olga V Voitsekhovskaja
- Laboratory of Molecular and Ecological Physiology, Komarov Botanical Institute of the Russian Academy of Sciences, Saint Petersburg, 197022, Russia.
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Zhang Y, Li J, Yu S, Li W, Dou Y, Zhang C. Adenosine triphosphate alleviates high temperature-enhanced glyphosate toxicity in maize seedlings. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108550. [PMID: 38555720 DOI: 10.1016/j.plaphy.2024.108550] [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: 09/13/2023] [Revised: 01/11/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024]
Abstract
Extracellular ATP plays a key role in regulating plants stress responses. Here, we aimed to determine whether ATP can alleviate the glyphosate toxicity in maize seedlings under high temperature by regulating antioxidant responses. Foliar spraying with 100 μM glyphosate inhibited the growth of maize seedlings at room temperature (25 °C), leading to an increase in shikimic acid accumulation and oxidative stress (evaluated via lipid peroxidation, free proline, and H2O2 content) in the leaves, all of which were further exacerbated by high temperature (35 °C). The growth inhibition and oxidative stress caused by glyphosate were both alleviated by exogenous ATP. Moreover, the glyphosate-induced antioxidant enzyme activity and antioxidant accumulation were attenuated by high temperature, while ATP treatment reversed this inhibitory effect. Similarly, qPCR data showed that the relative expression levels of antioxidant enzyme-related genes (CAT1, GR1, and γ-ECS) in maize leaves were upregulated by ATP before exposure to GLY. Moreover, high temperature-enhanced GLY residue accumulation in maize leaves was reduced by ATP. ATP-induced detoxification was attenuated through NADPH oxidase (NOX) inhibition. Higher NOX activities and O2•- production were noted in ATP-treated maize leaves compared to controls prior to GLY treatment, indicating that the extracellular ATP-induced alleviation of GLY toxicity was closely associated with NOX-dependent reactive oxygen species signalling. The current findings present a new approach for reducing herbicide toxicity in crops exposed to high temperatures.
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Affiliation(s)
- Yifei Zhang
- College of Agriculture, Heilongjiang Bayi Agricultural University/Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement, Daqing, 163319, Heilongjiang, China; Key Laboratory of Low-carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Daqing, 163319, Heilongjiang, China.
| | - Jiayu Li
- College of Agriculture, Heilongjiang Bayi Agricultural University/Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement, Daqing, 163319, Heilongjiang, China.
| | - Song Yu
- College of Agriculture, Heilongjiang Bayi Agricultural University/Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement, Daqing, 163319, Heilongjiang, China; Key Laboratory of Low-carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Daqing, 163319, Heilongjiang, China.
| | - Weiqing Li
- College of Agriculture, Heilongjiang Bayi Agricultural University/Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement, Daqing, 163319, Heilongjiang, China.
| | - Yi Dou
- College of Agriculture, Heilongjiang Bayi Agricultural University/Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement, Daqing, 163319, Heilongjiang, China.
| | - Chunyu Zhang
- College of Agriculture, Heilongjiang Bayi Agricultural University/Heilongjiang Provincial Key Laboratory of Modern Agricultural Cultivation and Crop Germplasm Improvement, Daqing, 163319, Heilongjiang, China; Key Laboratory of Low-carbon Green Agriculture in Northeastern China, Ministry of Agriculture and Rural Affairs, Daqing, 163319, Heilongjiang, China.
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Martins M, Oliveira L, Sousa B, Valente IM, Rodrigues JA, Azenha M, Soares C, Pereira R, Fidalgo F. Unravelling the combined impacts of drought and Cu in barley plants - double trouble? PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 209:108546. [PMID: 38518397 DOI: 10.1016/j.plaphy.2024.108546] [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: 11/21/2023] [Revised: 03/05/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
The occurrence of drought in soils, particularly in those contaminated by metals, poses a current threat to crops, as these factors can interact and induce unique stress responses. Therefore, this study mainly focused on understanding the crosstalk between drought and copper (Cu) stress in the physiology of the barley (Hordeum vulgare L.) plant. Using a bifactorial experimental design, seedlings were grown in a natural soil under the following treatments: plants continuously irrigated in uncontaminated soil for 14 days (control); plants continuously irrigated in Cu-contaminated soil (115 mg Cu kg-1) for 14 days (Cu); plants only irrigated during the initials 7 days of growth in uncontaminated soil (drought); plants co-exposed to Cu and drought (combined). After 14 days of growth, the results revealed that drought prevented Cu bioaccumulation in barley roots, which were still severely affected by the metal, both individually and in combination with the water deficit. Furthermore, individual and combined exposure to these stressors resulted in impaired photosynthetic performance in barley plants. Despite the increased activation of enzymatic and non-enzymatic antioxidant defence mechanisms, particularly in the green organs, the plants co-exposed to both stress factors still showed higher oxidative damage, severely impacting biomass production.
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Affiliation(s)
- Maria Martins
- GreenUPorto - Sustainable Agrifood Production Research Centre & Inov4Agro, Biology Department, Faculty of Sciences of University of Porto, Rua Do Campo Alegre S/n, Porto, Portugal.
| | - Licínio Oliveira
- GreenUPorto - Sustainable Agrifood Production Research Centre & Inov4Agro, Biology Department, Faculty of Sciences of University of Porto, Rua Do Campo Alegre S/n, Porto, Portugal
| | - Bruno Sousa
- GreenUPorto - Sustainable Agrifood Production Research Centre & Inov4Agro, Biology Department, Faculty of Sciences of University of Porto, Rua Do Campo Alegre S/n, Porto, Portugal
| | - Inês Maria Valente
- REQUIMTE, LAQV, Institute of Biomedical Sciences Abel Salazar, University of Porto, Rua Jorge Viterbo Ferreira, 228, Porto, 4050-313, Portugal; REQUIMTE, LAQV, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua Do Campo Alegre 687, Porto, 4169-007, Portugal
| | - José António Rodrigues
- REQUIMTE, LAQV, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua Do Campo Alegre 687, Porto, 4169-007, Portugal
| | - Manuel Azenha
- CIQ-UP, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua Do Campo Alegre S/n, 4169-007, Porto, Portugal
| | - Cristiano Soares
- GreenUPorto - Sustainable Agrifood Production Research Centre & Inov4Agro, Biology Department, Faculty of Sciences of University of Porto, Rua Do Campo Alegre S/n, Porto, Portugal
| | - Ruth Pereira
- GreenUPorto - Sustainable Agrifood Production Research Centre & Inov4Agro, Biology Department, Faculty of Sciences of University of Porto, Rua Do Campo Alegre S/n, Porto, Portugal
| | - Fernanda Fidalgo
- GreenUPorto - Sustainable Agrifood Production Research Centre & Inov4Agro, Biology Department, Faculty of Sciences of University of Porto, Rua Do Campo Alegre S/n, Porto, Portugal
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Zhang Y, Yan Y, Dai Q, Tan J, Wang C, Zhou H, Hu Z. Glyphosate spraying exacerbates nitrogen and phosphorus loss in karst slope farmland. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 196:80. [PMID: 38141083 DOI: 10.1007/s10661-023-12238-x] [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: 10/27/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023]
Abstract
Glyphosate herbicide is an indispensable material in agricultural production. In order to explore the potential environmental effects of glyphosate application in karst slope farmland, this paper used a variable slope steel tank to simulate the surface microtopography and underground pore structure characteristics of karst slope farmland, and combined with artificial rainfall experiments to explore the migration path of glyphosate in karst slope farmland and the impact of spraying glyphosate on soil nitrogen and phosphorus loss. The results showed that under the condition of heavy rain, glyphosate in karst slope farmland was mainly transported and diffused by surface runoff, supplemented by underground runoff; secondly, in different hydrological paths, glyphosate directly affected the content of nitrogen and phosphorus in runoff, and all showed extremely significant positive correlation (p < 0.001). In addition, rainfall conditions such as rainfall intensity, rainfall duration, and runoff affected the content of nitrogen and phosphorus in runoff to varying degrees. In conclusion, the application of glyphosate significantly increased the content of nitrogen and phosphorus in different runoff and accelerated the loss of nitrogen and phosphorus from soil, which not only led to soil degradation, but also threatened the safety of aquatic ecosystem. Therefore, in the prevention and control of agricultural non-point source pollution, the threat of glyphosate to the surrounding aquatic ecosystem cannot be ignored, especially in karst areas with frequent rainstorms and serious water erosion, long-term monitoring and risk assessment of glyphosate are needed.
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Affiliation(s)
- You Zhang
- College of Forestry, Guizhou University, Guiyang, 550025, People's Republic of China
- Tongren Polytechnic College, Tongren, 554300, People's Republic of China
- Institute of Soil Erosion and Ecological Restoration, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Youjin Yan
- College of Forestry, Guizhou University, Guiyang, 550025, People's Republic of China
- Institute of Soil Erosion and Ecological Restoration, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Quanhou Dai
- College of Forestry, Guizhou University, Guiyang, 550025, People's Republic of China.
- Institute of Soil Erosion and Ecological Restoration, Guizhou University, Guiyang, 550025, People's Republic of China.
| | - Juan Tan
- College of Forestry, Guizhou University, Guiyang, 550025, People's Republic of China
- Institute of Soil Erosion and Ecological Restoration, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Chenyang Wang
- College of Forestry, Guizhou University, Guiyang, 550025, People's Republic of China
- Institute of Soil Erosion and Ecological Restoration, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Hong Zhou
- College of Forestry, Guizhou University, Guiyang, 550025, People's Republic of China
- Institute of Soil Erosion and Ecological Restoration, Guizhou University, Guiyang, 550025, People's Republic of China
| | - Zeyin Hu
- College of Forestry, Guizhou University, Guiyang, 550025, People's Republic of China
- Institute of Soil Erosion and Ecological Restoration, Guizhou University, Guiyang, 550025, People's Republic of China
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González-Moscoso M, Meza-Figueroa D, Martínez-Villegas NV, Pedroza-Montero MR. GLYPHOSATE IMPACT on human health and the environment: Sustainable alternatives to replace it in Mexico. CHEMOSPHERE 2023; 340:139810. [PMID: 37598951 DOI: 10.1016/j.chemosphere.2023.139810] [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: 06/16/2023] [Revised: 08/10/2023] [Accepted: 08/11/2023] [Indexed: 08/22/2023]
Abstract
Glyphosate is a broad-spectrum, non-selective herbicide used to control weeds and protect agricultural crops, and it is classified as potentially carcinogenic by the International Agency for Research on Cancer. In Mexico, the use of pesticides is a common practice, including glyphosate. However, on December 31st, 2020, the Mexican government decreed the prohibition of this herbicide as of January 2024. In this review, we investigate the association between glyphosate and cancer risk and found that most of the studies focused using animals showing negative effects such as genotoxicity, cytotoxicity and neurotoxicity, some studies used cancer cell lines showing proliferative effects due to glyphosate exposure. To our knowledge, in Mexico, there are no scientific reports on the association of glyphosate with any type of cancer. In addition, we reviewed the toxicological effects of the herbicide glyphosate, and the specific case of the current situation of the use and environmental damage of this herbicide in Mexico. We found that few studies have been published on glyphosate, and that the largest number of publications are from the International Agency for Research on Cancer classification to date. Additionally, we provide data on glyphosate stimulation at low doses as a biostimulant in crops and analytical monitoring techniques for the detection of glyphosates in different matrices. Finally, we have tried to summarize the actions of the Mexican government to seek sustainable alternatives and replace the use of glyphosate, to obtain food free of this herbicide and take care of the health of the population and the environment.
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Affiliation(s)
- Magín González-Moscoso
- Departamento de Nanotecnología, Universidad Politécnica de Chiapas (UPChiapas), Carretera Tuxtla Gutierrez.-Portillo Zaragoza Km 21+500, Col. Las Brisas, Suchiapa, 29150, Chiapas, Mexico.
| | - Diana Meza-Figueroa
- Departamento de Geología, Universidad de Sonora, Rosales y Encinas, Hermosillo, 83000, Sonora, Mexico
| | | | - Martín Rafael Pedroza-Montero
- Departamento de Investigación en Física, Universidad de Sonora, Rosales y Encinas, Hermosillo, 83000, Sonora, Mexico
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Pinto M, Sousa B, Martins M, Pereira C, Soares C, Fidalgo F. Unveiling the efficacy of pre-emergent application of young Eucalyptus globulus leaves as a weed control strategy: Bridging macroscopic effects and cellular responses. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 203:108010. [PMID: 37714024 DOI: 10.1016/j.plaphy.2023.108010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/17/2023] [Accepted: 09/05/2023] [Indexed: 09/17/2023]
Abstract
Allelopathy, the inhibition of neighbouring plant growth by certain plants, can be particularly useful if applied in a targeted way for weed management. So, this study aimed to assess and characterize the herbicidal activity of fresh and dried leaves from young Eucalyptus globulus Labill. trees applied as a soil amendment. For this, fresh and dried leaves (FL and DL, respectively) were incorporated into the soil at different concentrations (0, 1, 5, and 10% w/w), where Portulaca oleracea L. seeds were sown. After 5 weeks of exposure, results revealed that the soil incorporation of DL at 10% (w/w) presented the strongest herbicidal properties, inhibiting seed germination by 63% and inducing the loss of cell viability. To unravel the possible mode of action and the main targets at both cellular and subcellular levels, an in vitro experiment was performed. Purslane seeds were sown in a nutritive medium containing different dilutions of an aqueous extract prepared with dried eucalyptus leaves. After 5 days of exposure, germinated seedlings were processed for transmission electron microscopy and histological analyses as well as for reactive oxygen species (ROS) in vivo detection by confocal laser scanning microscopy. Results revealed that the allelochemical release from DL induced ROS overproduction, resulting in the loss of cell integrity and organization, which was characterized by damage to several cellular sub-structures, along with enhanced accumulation of lipid droplets. Overall, the incorporation of DL into the soil can represent a sustainable alternative to reduce synthetic herbicide application and subsequent environmental contamination.
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Affiliation(s)
- Mafalda Pinto
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal; CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Campus de Vairão, Universidade do Porto, 4485-661, Vairão, Portugal; Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal; BIOPOLIS Program in Genomics, Biodiversity and Land Planning, CIBIO, Campus de Vairão, 4485-661, Vairão, Portugal.
| | - Bruno Sousa
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal
| | - Maria Martins
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal
| | - Cláudia Pereira
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal
| | - Cristiano Soares
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal
| | - Fernanda Fidalgo
- GreenUPorto - Sustainable Agrifood Production Research Centre/INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre, s/n, 4169-007, Porto, Portugal.
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Diogo BS, Antunes SC, Pinto I, Amorim J, Teixeira C, Teles LO, Golovko O, Žlábek V, Carvalho AP, Rodrigues S. Insights into environmental caffeine contamination in ecotoxicological biomarkers and potential health effects of Danio rerio. Heliyon 2023; 9:e19875. [PMID: 37809478 PMCID: PMC10559286 DOI: 10.1016/j.heliyon.2023.e19875] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 09/03/2023] [Accepted: 09/04/2023] [Indexed: 10/10/2023] Open
Abstract
Caffeine (CAF) exposures have been shown to cause several pharmacological and biological effects in target and non-target organisms. Although there are already several ecotoxicological studies with CAF in non-target organisms, they are focused on marine organisms, with relevant concentrations in these ecosystems, therefore, less ecologically relevant to freshwater ecosystems (the main ecoreceptor of this type of anthropogenic contaminant). The present study aimed to assess the chronic effects (28 days) of sub-lethal and environmentally relevant concentrations of CAF (0.16, 0.42, 1.09, 2.84, 7.40, 19.23, and 50 μg/L) in Danio rerio. Biochemical endpoints as biomarkers of antioxidant defense, biotransformation, lipid peroxidation, energy sources, and neurotransmission were assessed. CAF exposure induced alterations in antioxidant defenses (superoxide dismutase and glutathione reductase activities, and glutathione content) preventing lipid peroxidation. Lactate dehydrogenase activity decreased in all the concentrations tested, while acetylcholinesterase activity was only affected by the highest concentrations tested (19.23 and 50 μg/L). We also utilized a multi-biomarker approach (Integrated Biomarker Response version 2, IBRv2) to investigate the effects of CAF in the dispersion scope of individual biochemical responses of D. rerio. IBRv2 showed that the concentration of 50 μg/L promotes the highest stress. However, the results showed that CAF induced disturbances in the metabolic pathways studied in D. rerio. These results demonstrated the toxic effects of CAF on freshwater fish, compromising their physiological functions and evidencing the need for monitoring the residues of CAF released into the inland aquatic environments. Furthermore, this research evidence that phylogenetically and physiologically different species may present different biological responses with concern for ecologically relevant environmental conditions. In this sense, the present study generated ecotoxicologically relevant data, that can be considered by environment regulators, since the here-endpoints evaluated showed sensitivity and consistency in the evaluation of caffeine risks in freshwater environments.
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Affiliation(s)
- Bárbara S. Diogo
- ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Sara C. Antunes
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Ivo Pinto
- ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
- UMIB-ICBAS, Unidade Multidisciplinar de Investigação Biomédica, Instituto Ciências Abel Salazar da Universidade do Porto, Rua de Jorge Viterbo Ferreira n.° 228, 4050-313, Porto, Portugal
| | - João Amorim
- ICBAS, Instituto de Ciências Biomédicas de Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Cláudia Teixeira
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Luís Oliva Teles
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Oksana Golovko
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), SE-75007, Uppsala, Sweden
| | - Vladimír Žlábek
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728/II, CZ-389 25, Vodňany, Czech Republic
| | - António Paulo Carvalho
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
| | - Sara Rodrigues
- CIMAR/CIIMAR, Centro Interdisciplinar de Investigação Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leixões, Avenida General Norton de Matos, S/N, 4450-208, Matosinhos, Portugal
- FCUP, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre S/N, 4169-007, Porto, Portugal
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8
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Liu S, Rao J, Zhu J, Li G, Li F, Zhang H, Tao L, Zhou Q, Tao Y, Zhang Y, Huang K, Wei C. Integrated physiological, metabolite and proteomic analysis reveal the glyphosate stress response mechanism in tea plant (Camellia sinensis). JOURNAL OF HAZARDOUS MATERIALS 2023; 454:131419. [PMID: 37099910 DOI: 10.1016/j.jhazmat.2023.131419] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 03/24/2023] [Accepted: 04/12/2023] [Indexed: 05/19/2023]
Abstract
Glyphosate residues can tremendously impact the physiological mechanisms of tea plants, thus threatening tea security and human health. Herein, integrated physiological, metabolite, and proteomic analyses were performed to reveal the glyphosate stress response mechanism in tea plant. After exposure to glyphosate (≥1.25 kg ae/ha), the leaf ultrastructure was damaged, and chlorophyll content and relative fluorescence intensity decreased significantly. The characteristic metabolites catechins and theanine decreased significantly, and the 18 volatile compounds content varied significantly under glyphosate treatments. Subsequently, tandem mass tags (TMT)-based quantitative proteomics was employed to identify the differentially expressed proteins (DEPs) and to validate their biological functions at the proteome level. A total of 6287 proteins were identified and 326 DEPs were screened. These DEPs were mainly catalytic, binding, transporter and antioxidant active proteins, involved in photosynthesis and chlorophyll biosynthesis, phenylpropanoid and flavonoid biosynthesis, sugar and energy metabolism, amino acid metabolism, and stress/defense/detoxification pathway, etc. A total of 22 DEPs were validated by parallel reaction monitoring (PRM), demonstrating that the protein abundances were consistent between TMT and PRM data. These findings contribute to our understanding of the damage of glyphosate to tea leaves and molecular mechanism underlying the response of tea plants to glyphosate.
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Affiliation(s)
- Shengrui Liu
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China
| | - Jia Rao
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China
| | - Junyan Zhu
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China
| | - Guoqiang Li
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China
| | - Fangdong Li
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China
| | - Hongxiu Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China
| | - Lingling Tao
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China
| | - Qianqian Zhou
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China
| | - Yongning Tao
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China
| | - Youze Zhang
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China
| | - Kelin Huang
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China
| | - Chaoling Wei
- State Key Laboratory of Tea Plant Biology and Utilization, Key Laboratory of Tea Biology and Processing, Ministry of Agriculture, Anhui Agricultural University, 130 Changjiang West Road, Hefei 230036, People's Republic of China.
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9
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Liu Z, Zhou L, Gan C, Hu L, Pang B, Zuo D, Wang G, Wang H, Liu Y. Transcriptomic analysis reveals key genes and pathways corresponding to Cd and Pb in the hyperaccumulator Arabis paniculata. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 254:114757. [PMID: 36950987 DOI: 10.1016/j.ecoenv.2023.114757] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 02/15/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Soil and water are increasingly at risk of contamination from the toxic heavy metals lead (Pb) and cadmium (Cd). Arabis paniculata (Brassicaceae) is a hyperaccumulator of heavy metals (HMs) found widely distributed in areas impacts by mining activities. However, the mechanism by which A. paniculata tolerates HMs is still uncharacterized. For this experiment, we employed RNA sequencing (RNA-seq) in order to find Cd (0.25 mM)- and Pb (2.50 mM)-coresponsive genes A. paniculata. In total, 4490 and 1804 differentially expressed genes (DEGs) were identified in root tissue, and 955 and 2209 DEGs were identified in shoot tissue, after Cd and Pb exposure, respectively. Interestingly in root tissue, gene expression corresponded similarly to both Cd and Pd exposure, of which 27.48% were co-upregulated and 41.00% were co-downregulated. Kyoto Encyclopedia of Genes and Genomes (KEGG) and Gene Ontology (GO) analyses showed that the co-regulated genes were predominantly involved in transcription factors (TFs), cell wall biosynthesis, metal transport, plant hormone signal transduction, and antioxidant enzyme activity. Many critical Pb/Cd-induced DEGs involved in phytohormone biosynthesis and signal transduction, HM transport, and transcription factors were also identified. Especially the gene ABCC9 was co-downregulated in root tissues but co-upregulated in shoot tissues. The co-downregulation of ABCC9 in the roots prevented Cd and Pb from entering the vacuole rather than the cytoplasm for transporting HMs to shoots. While in shoots, the ABCC9 co-upregulated results in vacuolar Cd and Pb accumulation, which may explain why A. paniculata is a hyperaccumulator. These results will help to reveal the molecular and physiological processes underlying tolerance to HM exposure in the hyperaccumulator A. paniculata, and aid in future efforts to utilize this plant in phytoremediation.
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Affiliation(s)
- Zhaochao Liu
- School of Life Science, Guizhou Normal University, Guiyang 550025, Guizhou, China
| | - Lizhou Zhou
- School of Life Science, Guizhou Normal University, Guiyang 550025, Guizhou, China
| | - Chenchen Gan
- School of Life Science, Guizhou Normal University, Guiyang 550025, Guizhou, China
| | - Lijuan Hu
- School of Life Science, Guizhou Normal University, Guiyang 550025, Guizhou, China
| | - Biao Pang
- School of Life Science, Guizhou Normal University, Guiyang 550025, Guizhou, China
| | - Dan Zuo
- School of Life Science, Guizhou Normal University, Guiyang 550025, Guizhou, China
| | - Guangyi Wang
- School of Life Science, Guizhou Normal University, Guiyang 550025, Guizhou, China
| | - Hongcheng Wang
- School of Life Science, Guizhou Normal University, Guiyang 550025, Guizhou, China.
| | - Yingliang Liu
- School of Life Science, Guizhou Normal University, Guiyang 550025, Guizhou, China.
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10
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Accumulation of Proline in Plants under Contaminated Soils—Are We on the Same Page? Antioxidants (Basel) 2023; 12:antiox12030666. [PMID: 36978914 PMCID: PMC10045403 DOI: 10.3390/antiox12030666] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/10/2023] Open
Abstract
Agricultural soil degradation is occurring at unprecedented rates, not only as an indirect effect of climate change (CC) but also due to intensified agricultural practices which affect soil properties and biodiversity. Therefore, understanding the impacts of CC and soil degradation on plant physiology is crucial for the sustainable development of mitigation strategies to prevent crop productivity losses. The amino acid proline has long been recognized for playing distinct roles in plant cells undergoing osmotic stress. Due to its osmoprotectant and redox-buffering ability, a positive correlation between proline accumulation and plants’ tolerance to abiotic stress has been pointed out in numerous reviews. Indeed, proline quantification is used systematically by plant physiologists as an indicator of the degree of tolerance and a measurement of the antioxidant potential in plants under stressful conditions. Moreover, the exogenous application of proline has been shown to increase resilience to several stress factors, including those related to soil degradation such as salinity and exposure to metals and xenobiotics. However, recent data from several studies often refer to proline accumulation as a signal of stress sensitivity with no clear correlation with improved antioxidant activity or higher stress tolerance, including when proline is used exogenously as a stress reliever. Nevertheless, endogenous proline levels are strongly modified by these stresses, proving its involvement in plant responses. Hence, one main question arises—is proline augmentation always a sign of improved stress resilience? From this perspective, the present review aims to provide a more comprehensive understanding of the implications of proline accumulation in plants under abiotic stress induced by soil degradation factors, reinforcing the idea that proline quantification should not be employed as a sole indicator of stress sensitivity or resilience but rather complemented with further biochemical and physiological endpoints.
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11
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Ospino K, Spira B. Glyphosate affects persistence and tolerance but not antibiotic resistance. BMC Microbiol 2023; 23:61. [PMID: 36882692 PMCID: PMC9990207 DOI: 10.1186/s12866-023-02804-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 02/21/2023] [Indexed: 03/09/2023] Open
Abstract
Glyphosate is a herbicide widely used in food production that blocks the synthesis of aromatic amino acids in plants and in microorganisms and also induces the accumulation of the alarmone (p)ppGpp. The purpose of this study was to investigate whether glyphosate affects the resistance, tolerance or persistence of bacteria towards three different classes of antibiotics and the possible role of (p)ppGpp in this activity. Glyphosate did not affect the minimum inhibitory concentration of the tested antibiotics, but enhanced bacterial tolerance and/or persistence towards them. The upshift in ciprofloxacin and kanamycin tolerance was partially dependent on the presence of relA that promotes (p)ppGpp accumulation in response to glyphosate. Conversely, the strong increase in ampicillin tolerance caused by glyphosate was independent of relA. We conclude that by inducing aromatic amino acid starvation glyphosate contributes to the temporary increase in E. coli tolerance or persistence, but does not affect antibiotic resistance.
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Affiliation(s)
- Katia Ospino
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil
| | - Beny Spira
- Departamento de Microbiologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brazil.
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12
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Enzymatic and Non-Enzymatic Antioxidant Responses of Young Tomato Plants (cv. Micro-Tom) to Single and Combined Mild Nitrogen and Water Deficit: Not the Sum of the Parts. Antioxidants (Basel) 2023; 12:antiox12020375. [PMID: 36829934 PMCID: PMC9951916 DOI: 10.3390/antiox12020375] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/27/2023] [Accepted: 01/31/2023] [Indexed: 02/09/2023] Open
Abstract
This study aims to perform a broad analysis of the antioxidant (AOX) responses of young tomato plants exposed to single and combined mild nitrogen (N) and water deficits through the evaluation of oxidative biomarkers, non-enzymatic and enzymatic AOX components. 'Micro-Tom' seedlings were subjected to four treatments: control (CTR; 100%N + 100%W), N deficit (N; 50%N), water deficit (W; 50%W), and combined deficits (N + W; 50%N + 50%W). An enhancement of several non-enzymatic and enzymatic components was found in plants subjected to N + W deficit, which presented higher anthocyanins accumulation (up to 103%) as well as higher levels of superoxide dismutase (SOD) transcripts at root level and of ascorbate peroxidase (APX) and catalase (CAT) transcripts at shoot level. This increase in the gene expression was also translated in augmented SOD (up to 202%), APX (up to 155%) and CAT (up to 108%) activity compared to CTR plants and the single deficits. Overall, tomato plants were able to employ defense strategies to cope with this combined deficit, as demonstrated by the higher total AOX capacity (up to 87%) compared to the single deficits, which contributed to the maintenance of their redox homeostasis, with unchanged values of lipid peroxidation and hydrogen peroxide compared with CTR plants.
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13
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Soares C, Fernandes B, Paiva C, Nogueira V, Cachada A, Fidalgo F, Pereira R. Ecotoxicological relevance of glyphosate and flazasulfuron to soil habitat and retention functions - Single vs combined exposures. JOURNAL OF HAZARDOUS MATERIALS 2023; 442:130128. [PMID: 36303338 DOI: 10.1016/j.jhazmat.2022.130128] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 08/31/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
Glyphosate (GLY) and flazasulfuron (FLA) are two non-selective herbicides commonly applied together. However, research focused on their single and combined ecotoxicological impacts towards non-target organisms is still inconclusive. Therefore, this study aimed to test their single effects on soil's habitat and retention functions, and to unravel their combined impacts to earthworms and terrestrial plants. For this, ecotoxicological assays were performed with plants (Medicago sativa), oligochaetes (Eisenia fetida) and collembola (Folsomia candida). Soil elutriates were also prepared and tested in macrophytes (Lemna minor) and microalgae (Raphidocelis subcapitata). FLA (82-413 µg kg-1) reduced earthworms' and collembola's reproduction and severely impaired M. sativa growth, being much more toxic than GLY (up to 30 mg kg-1). In fact, the latter only affected plant growth (≥ 9 mg kg-1) and earthworms (≥ 13 mg kg-1), especially at high concentrations, with no effects on collembola. Moreover, only elutriates from FLA-contaminated soils significantly impacted L. minor and R. sucapitata. The experiments revealed that the co-exposure to GLY and FLA enhanced the toxic effects of contaminated soils not only on plants but also on earthworms'. However, such increase in toxicity was dependent on GLY residual concentrations in soils. Overall, this work underpins that herbicides risk assessment should consider herbicides co-exposures, since the evaluation of single exposures is not representative of current phytosanitary practices and of the potential effects under field conditions, where residues of different compounds may persist in soils.
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Affiliation(s)
- Cristiano Soares
- GreenUPorto & INOV4AGRO - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal.
| | - Beatriz Fernandes
- GreenUPorto & INOV4AGRO - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; CIIMAR - Interdisciplinary Centre of Marine & Environmental Research, Rua dos Bragas, n. 289, 4050-123 Porto, Portugal
| | - Cristiana Paiva
- GreenUPorto & INOV4AGRO - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Verónica Nogueira
- CIIMAR - Interdisciplinary Centre of Marine & Environmental Research, Rua dos Bragas, n. 289, 4050-123 Porto, Portugal; Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Anabela Cachada
- CIIMAR - Interdisciplinary Centre of Marine & Environmental Research, Rua dos Bragas, n. 289, 4050-123 Porto, Portugal; Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Fernanda Fidalgo
- GreenUPorto & INOV4AGRO - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Ruth Pereira
- GreenUPorto & INOV4AGRO - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
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14
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Early response of Solanum nigrum L. to Lumax and castor oil combination in relation to antioxidant activity, osmolyte concentration and chlorophyll a fluorescence. Sci Rep 2023; 13:409. [PMID: 36624299 PMCID: PMC9829861 DOI: 10.1038/s41598-023-27428-3] [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: 10/09/2022] [Accepted: 01/02/2023] [Indexed: 01/11/2023] Open
Abstract
Solanum nigrum L. (Black nightshade), is one of the most troublesome weeds of summer crops such as corn, soybean, sunflower, etc. To study the effect of combined Castor oil as an adjuvant with different doses of Lumax (Mesotrion + S-metolacholor + Terbuthylazine) on the physiological behavior of Solanum nigrum L., a greenhouse experiment was conducted in randomized complete block design with four replications in agricultural faculty of the University of Tabriz in 2021. A foliar application of Lumax increased proline, malondialdehyde, and hydrogen peroxide concentrations and superoxide dismutase, catalase, and peroxidase activity. The content of protein and photosynthetic pigments (Chlorophyll a, b, and carotenoids) also decreased significantly by using Lumax herbicide. Applying castor oil in combination with Lumax intensifies oxidative stress and lipid peroxidation. Results showed that by increasing the herbicide doses in comparison with control (non-herbicide), Area, Fm, Fv, Fv/Fm, Fv/F0, Sm, Sm/Tfm, and Fv/F0 decreased 48.32%, 19.52%, 27.95%, 10.47%, 50.90%, 28.34%, 79.38%, and 50.90%, respectively and F0, F0/Fm increased 46.76% and 82.38%, respectively. Castor oil showed a synergistic effect on Lumax herbicide and enhanced its efficacy on Solanum nigrum. The presented results supported the view that by evaluating chlorophyll a fluorescence parameters, we would realize herbicide (alone or mixed with any adjacent) efficacy before the visual symptoms appear in the plant.
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15
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Ajermoun N, Aghris S, Ettadili F, Alaoui OT, Laghrib F, Farahi A, Lahrich S, Bakasse M, Saqrane S, El Mhammedi MA. Phytotoxic effect of the insecticide imidacloprid in Phaseolus vulgaris L. plant and evaluation of its bioaccumulation and translocation by electrochemical methods. ENVIRONMENTAL RESEARCH 2022; 214:113794. [PMID: 35809636 DOI: 10.1016/j.envres.2022.113794] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 05/26/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
The objective of this work is to study the toxicological effect of the imidacloprid (IMD) on common bean plants (Phaseolus vulgaris L) when used at high doses and its quantification by electrochemical method. Common bean plants were exposed to increasing concentrations of IMD and the different plant tissues were subjected to various analyses. The IMD detection in different tissues of the bean plant was performed after extraction on the metallic silver electrode using square wave voltammetry. The analytical and calibration parameters (Slope, correlation coefficient, linear range, detection limit and relative standard deviation) were calculated for the different plant tissues. The effect of different doses (5.0 × 10-3 to 5.0 × 10-2 mol L-1) of IMD was evaluated on germination, seedling (vigour, growth) and photosynthetic pigments in the bean plant. The results indicate that germination rate and seed vigour index reduced significantly (p ≤ 0.05) only in the applied concentrations above the recommended dose. A similar effect of IMD was observed on seedling development in term of roots length, plant length, number of leaves and number of nods. Concerning pigments content, chlorophyll a, b and total chlorophyll maximally decreased by 95.26%, 80.44% and 82.15% respectively at high applied dose. The bioaccumulation and translocation behaviour of IMD in bean plant was investigated, revealing that the IMD can be bioaccumulated in roots and can easily be translocated into stems and leaves.
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Affiliation(s)
- N Ajermoun
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, 25 000 Khouribga, Morocco
| | - S Aghris
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, 25 000 Khouribga, Morocco
| | - F Ettadili
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, 25 000 Khouribga, Morocco
| | - O Tahiri Alaoui
- Moulay Ismail University, Laboratory of Physical Chemistry, Materials and Environment, Sciences and Technologies Faculty, Errachidia, Morocco
| | - F Laghrib
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, 25 000 Khouribga, Morocco; Sidi Mohamed Ben Abdellah University, Engineering Laboratory of Organometallic, Molecular Materials, and Environment, Faculty of sciences, Fez, Morocco
| | - A Farahi
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, 25 000 Khouribga, Morocco
| | - S Lahrich
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, 25 000 Khouribga, Morocco
| | - M Bakasse
- Chouaib Doukkali University, Faculty of Sciences, Laboratory of Organic Bioorganic Chemistry and Environment, El Jadida, Morocco
| | - S Saqrane
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, 25 000 Khouribga, Morocco
| | - M A El Mhammedi
- Sultan Moulay Slimane University of Beni Mellal, Laboratory of Materials Science, Mathematics and Environment, Polydisciplinary Faculty, 25 000 Khouribga, Morocco.
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16
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Ramula S, Kalske A, Saikkonen K, Helander M. Glyphosate residues in soil can modify plant resistance to herbivores through changes in leaf quality. PLANT BIOLOGY (STUTTGART, GERMANY) 2022; 24:979-986. [PMID: 35793169 PMCID: PMC9796381 DOI: 10.1111/plb.13453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 06/27/2022] [Indexed: 05/28/2023]
Abstract
Glyphosate is the most widely used non-selective herbicide in the world. Glyphosate residues in soil can affect plant quality by modifying plant physiology, hormonal pathways and traits, with potential consequences for plants' interactions with herbivores. We explored these indirect effects in the context of plant-herbivore interactions in a perennial, nitrogen-fixing herb. We quantified leaf herbivory for glyphosate-exposed and control plants grown in phosphorus-fertilized and non-fertilized soils, and assessed the impacts of glyphosate treatment on traits related to plant resistance against herbivores (leaf trichome density, leaf mass per area) and performance (aboveground biomass, root:shoot ratio, nodule number, nodule activity). Moreover, we conducted a laboratory feeding experiment to compare the palatability of leaves from glyphosate-exposed and control plants to a generalist mollusc herbivore. Herbivore damage and intensity in situ increased during the growing season regardless of glyphosate or phosphorus treatment. Glyphosate treatment reduced leaf trichome density but had no effect on the other plant traits considered. Herbivore damage was negatively associated with leaf trichome density. The feeding experiment revealed no difference in the feeding probability of mollusc herbivores between glyphosate-exposed and control plants. However, there was an interaction between glyphosate treatment and initial leaf area for leaf consumption by herbivores: leaf consumption increased with increasing leaf area in both groups, but at a lower rate for glyphosate-exposed plants than for control plants. Our results show that glyphosate residues in soil have the potential to indirectly affect aboveground herbivores through changes in leaf quality, which may have mixed consequences for folivore damage.
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Affiliation(s)
- S. Ramula
- Department of BiologyUniversity of TurkuTurkuFinland
| | - A. Kalske
- Department of BiologyUniversity of TurkuTurkuFinland
| | - K. Saikkonen
- Biodiversity UnitUniversity of TurkuTurkuFinland
| | - M. Helander
- Department of BiologyUniversity of TurkuTurkuFinland
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17
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Eceiza MV, Gil-Monreal M, Barco-Antoñanzas M, Zabalza A, Royuela M. The moderate oxidative stress induced by glyphosate is not detected in Amaranthus palmeri plants overexpressing EPSPS. JOURNAL OF PLANT PHYSIOLOGY 2022; 274:153720. [PMID: 35597108 DOI: 10.1016/j.jplph.2022.153720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 05/10/2022] [Accepted: 05/10/2022] [Indexed: 06/15/2023]
Abstract
The present study aimed to determine whether glyphosate-induced oxidative stress is directly related to the action mechanism of this herbicide (5-enolpyruvylshikimate-3-phosphate synthase or EPSPS inhibition) and analyse the role of oxidative stress in glyphosate toxicity of the weed Amaranthus palmeri S. Wats. Two kinds of populations were studied using EPSPS amplification: glyphosate-sensitive and glyphosate-resistant (by gene amplification). Plants were grown hydroponically and treated with different glyphosate doses, after which several oxidative stress markers were measured in the leaves. Untreated, sensitive and resistant plants showed similar values for the analysed parameters. Treated glyphosate-sensitive plants showed an increase in shikimate, superoxide and H2O2 contents and dose-dependent lipid peroxidation and antioxidant responses; however, none of these effects were observed in resistant plants, indicating that glyphosate-induced oxidative stress is related to EPSPS inhibition. Oxidative stress is associated with an increase in the activity of peroxidases due to EPSPS inhibition, although the link between both processes remains elusive. The fact that some glyphosate doses were lethal but did not induce major oxidative damage provides evidence that glyphosate toxicity is independent of oxidative stress.
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Affiliation(s)
- Mikel Vicente Eceiza
- Institute for Multidisciplinary Research in Applied Biology (IMAB), Public University of Navarre, Campus Arrosadia s/n, 31006, Pamplona, Spain
| | - Miriam Gil-Monreal
- Institute for Multidisciplinary Research in Applied Biology (IMAB), Public University of Navarre, Campus Arrosadia s/n, 31006, Pamplona, Spain
| | - María Barco-Antoñanzas
- Institute for Multidisciplinary Research in Applied Biology (IMAB), Public University of Navarre, Campus Arrosadia s/n, 31006, Pamplona, Spain
| | - Ana Zabalza
- Institute for Multidisciplinary Research in Applied Biology (IMAB), Public University of Navarre, Campus Arrosadia s/n, 31006, Pamplona, Spain
| | - Mercedes Royuela
- Institute for Multidisciplinary Research in Applied Biology (IMAB), Public University of Navarre, Campus Arrosadia s/n, 31006, Pamplona, Spain.
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18
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Yu W, Xue Z, Zhao X, Zhang R, Liu J, Guo S. Glyphosate-induced GhAG2 is involved in resistance to salt stress in cotton. PLANT CELL REPORTS 2022; 41:1131-1145. [PMID: 35243542 DOI: 10.1007/s00299-022-02844-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Accepted: 02/05/2022] [Indexed: 06/14/2023]
Abstract
KEY MESSAGE The transcription of GhAG2 was strongly enhanced by glyphosate treatment. Overexpression of GhAG2 could improve plant tolerance to salt and salicylic acid stress. Although glyphosate has been widely used as an herbicide over the past decade owing to its high efficacy on weed controls and worldwide commercialization of glyphosate-resistant crops, little is known about the glyphosate-induced responses and transcriptional changes in cotton plants. Here, we report the identification of 26 differentially expressed genes after glyphosate treatment, among which, six highly up-regulated sequences share homology to cotton expressed sequence tags (ESTs) responsive to abiotic stresses. In addition, we cloned GhAG2, a gene whose transcription was strongly enhanced by glyphosate treatment and other abiotic stresses. Transgenic GhAG2 plants showed improved tolerance to salt, and salicylic acid (SA) stress. The results could open the door to exploring the function of the GhAG2 proteins, the glyphosate-induced transcriptional profiles, and the physiological biochemical responses in cotton and other crops. GhAG2 could also be used to improve salt stress tolerance through breeding and biotechnology in crops. Furthermore, these results could provide guidelines to develop a glyphosate-inducible system for controlled expression of targeted genes in plants.
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Affiliation(s)
- Wancong Yu
- Biotechnology Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin, 300384, China
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhaohui Xue
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China
| | - Xianzheng Zhao
- Biotechnology Research Institute, Tianjin Academy of Agricultural Sciences, Tianjin, 300384, China
| | - Rui Zhang
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Jiping Liu
- Robert W. Holley Center for Agriculture and Health, United States Department of Agriculture, Agricultural Research Service, Ithaca, NY, 14853, USA.
| | - Sandui Guo
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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Rodríguez-Seijo A, Soares C, Ribeiro S, Amil BF, Patinha C, Cachada A, Fidalgo F, Pereira R. Nano-Fe 2O 3 as a tool to restore plant growth in contaminated soils - Assessment of potentially toxic elements (bio)availability and redox homeostasis in Hordeum vulgare L. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:127999. [PMID: 34896708 DOI: 10.1016/j.jhazmat.2021.127999] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/19/2021] [Accepted: 12/03/2021] [Indexed: 06/14/2023]
Abstract
This work aimed to evaluate the potential of Fe2O3 nanoparticles (nano-Fe2O3) to alleviate potentially toxic elements (PTEs) - induced stress in barley plants (Hordeum vulgare L.), focusing on bioaccumulation patterns and on plant growth and redox homeostasis. To achieve this goal, plants grew in two agricultural soils, contaminated by different levels of PTEs, collected from an industrial area, previously amended, or not, with 1% (w/w) nano-Fe2O3. After 14 d of growth, biometric parameters were evaluated, along with the analysis of PTEs bioaccumulation and biochemical endpoints. After exposure to contaminated soils, plant development was greatly affected, as evidenced by significant decreases in root length and biomass production. However, upon co-treatment with nano-Fe2O3, lower inhibitory effects on biometric parameters were observed. Regarding the oxidative damage, both soils led to increases in lipid peroxidation and superoxide anion concentration, though hydrogen peroxide levels were only increased in the most contaminated soil. In general, these changes in the oxidative stress markers were accompanied by an upregulation of different antioxidant mechanisms, whose efficiency was even more powerful upon soil amendment with nano-Fe2O3, thus lowering PTEs-induced oxidative damage. Altogether, the present study revealed that nano-Fe2O3 can protect the growth of barley plants under contaminated soils.
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Affiliation(s)
- Andrés Rodríguez-Seijo
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal.
| | - Cristiano Soares
- Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal; GreenUPorto-Sustainable Agrifood Production Research Centre and INOV4AGRO, Rua do Campo Alegre s/n, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal.
| | - Sónia Ribeiro
- Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal; GreenUPorto-Sustainable Agrifood Production Research Centre and INOV4AGRO, Rua do Campo Alegre s/n, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal
| | - Berta Ferreiro Amil
- GreenUPorto-Sustainable Agrifood Production Research Centre and INOV4AGRO, Rua do Campo Alegre s/n, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal; Faculdade de Bioloxía, Universidade de Santiago de Compostela, Santiago de Compostela, Spain
| | - Carla Patinha
- Department of Geosciences & GEOBIOTEC, University of Aveiro, Campus de Santiago, Aveiro 3810-193, Portugal
| | - Anabela Cachada
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4450-208 Matosinhos, Portugal; Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal
| | - Fernanda Fidalgo
- Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal; GreenUPorto-Sustainable Agrifood Production Research Centre and INOV4AGRO, Rua do Campo Alegre s/n, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal
| | - Ruth Pereira
- Department of Biology, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal; GreenUPorto-Sustainable Agrifood Production Research Centre and INOV4AGRO, Rua do Campo Alegre s/n, Faculty of Sciences of University of Porto (FCUP), 4169-007 Porto, Portugal
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20
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Sousa B, Rodrigues F, Soares C, Martins M, Azenha M, Lino-Neto T, Santos C, Cunha A, Fidalgo F. Impact of Combined Heat and Salt Stresses on Tomato Plants—Insights into Nutrient Uptake and Redox Homeostasis. Antioxidants (Basel) 2022; 11:antiox11030478. [PMID: 35326127 PMCID: PMC8944476 DOI: 10.3390/antiox11030478] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/24/2022] [Accepted: 02/25/2022] [Indexed: 02/06/2023] Open
Abstract
Currently, salinity and heat are two critical threats to crop production and food security which are being aggravated by the global climatic instability. In this scenario, it is imperative to understand plant responses to simultaneous exposure to different stressors and the cross-talk between underlying functional mechanisms. Thus, in this study, the physiological and biochemical responses of tomato plants (Solanum lycopersicum L.) to the combination of salinity (100 mM NaCl) and heat (42 °C; 4 h/day) stress were evaluated. After 21 days of co-exposure, the accumulation of Na+ in plant tissues was superior when salt-treated plants were also exposed to high temperatures compared to the individual saline treatment, leading to the depletion of other nutrients and a harsher negative effect on plant growth. Despite that, neither oxidative damage nor a major accumulation of reactive oxygen species took place under stress conditions, mostly due to the accumulation of antioxidant (AOX) metabolites alongside the activation of several AOX enzymes. Nonetheless, the plausible allocation of resources towards the defense pathways related to oxidative and osmotic stress, along with severe Na toxicity, heavily compromised the ability of plants to grow properly when the combination of salinity and heat was imposed.
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Affiliation(s)
- Bruno Sousa
- GreenUPorto-Sustainable Agrifood Production Research Centre & INOV4AGRO, Biology Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (C.S.); (M.M.); (F.F.)
- Correspondence: (B.S.); (F.R.)
| | - Francisca Rodrigues
- GreenUPorto-Sustainable Agrifood Production Research Centre & INOV4AGRO, Biology Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (C.S.); (M.M.); (F.F.)
- Biology Department and CBMA-Centre of Molecular and Environmental Biology, School of Sciences, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (T.L.-N.); (A.C.)
- Correspondence: (B.S.); (F.R.)
| | - Cristiano Soares
- GreenUPorto-Sustainable Agrifood Production Research Centre & INOV4AGRO, Biology Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (C.S.); (M.M.); (F.F.)
| | - Maria Martins
- GreenUPorto-Sustainable Agrifood Production Research Centre & INOV4AGRO, Biology Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (C.S.); (M.M.); (F.F.)
| | - Manuel Azenha
- CIQ-UP, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal;
| | - Teresa Lino-Neto
- Biology Department and CBMA-Centre of Molecular and Environmental Biology, School of Sciences, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (T.L.-N.); (A.C.)
| | - Conceição Santos
- LAQV/REQUIMTE, Laboratory of Integrative Biology and Biotechnology (IB2), Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal;
| | - Ana Cunha
- Biology Department and CBMA-Centre of Molecular and Environmental Biology, School of Sciences, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; (T.L.-N.); (A.C.)
| | - Fernanda Fidalgo
- GreenUPorto-Sustainable Agrifood Production Research Centre & INOV4AGRO, Biology Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (C.S.); (M.M.); (F.F.)
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21
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Wang X, Lu Q, Guo J, Ares I, Martínez M, Martínez-Larrañaga MR, Wang X, Anadón A, Martínez MA. Oxidative Stress and Metabolism: A Mechanistic Insight for Glyphosate Toxicology. Annu Rev Pharmacol Toxicol 2022; 62:617-639. [PMID: 34990202 DOI: 10.1146/annurev-pharmtox-020821-111552] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Glyphosate (GLYP) is a widely used pesticide; it is considered to be a safe herbicide for animals and humans because it targets 5-enolpyruvylshikimate-3-phosphate synthase. However, there has been increasing evidence that GLYP causes varying degrees of toxicity. Moreover, oxidative stress and metabolism are highly correlated with toxicity. This review provides a comprehensive introduction to the toxicity of GLYP and, for the first time, systematically summarizes the toxicity mechanism of GLYP from the perspective of oxidative stress, including GLYP-mediated oxidative damage, changes in antioxidant status, altered signaling pathways, and the regulation of oxidative stress by exogenous substances. In addition, the metabolism of GLYP is discussed, including metabolites,metabolic pathways, metabolic enzymes, and the toxicity of metabolites. This review provides new ideas for the toxicity mechanism of GLYP and proposes effective strategies for reducing its toxicity.
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Affiliation(s)
- Xiaojing Wang
- National Reference Laboratory of Veterinary Drug Residues and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China;
| | - Qirong Lu
- National Reference Laboratory of Veterinary Drug Residues and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China;
| | - Jingchao Guo
- National Reference Laboratory of Veterinary Drug Residues and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China;
| | - Irma Ares
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, and Research Institute Hospital 12 de Octubre, 28040 Madrid, Spain;
| | - Marta Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, and Research Institute Hospital 12 de Octubre, 28040 Madrid, Spain;
| | - María-Rosa Martínez-Larrañaga
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, and Research Institute Hospital 12 de Octubre, 28040 Madrid, Spain;
| | - Xu Wang
- National Reference Laboratory of Veterinary Drug Residues and MAO Key Laboratory for Detection of Veterinary Drug Residues, Huazhong Agricultural University, Wuhan, Hubei 430070, China;
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, and Research Institute Hospital 12 de Octubre, 28040 Madrid, Spain;
- MAO Laboratory for Risk Assessment of Quality and Safety of Livestock and Poultry Products, Huazhong Agricultural University, Wuhan, Hubei 430070, China
- Hubei Collaborative Innovation Center for Animal Nutrition and Feed Safety, Wuhan, Hubei 430023, China
| | - Arturo Anadón
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, and Research Institute Hospital 12 de Octubre, 28040 Madrid, Spain;
| | - María-Aránzazu Martínez
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universidad Complutense de Madrid, and Research Institute Hospital 12 de Octubre, 28040 Madrid, Spain;
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Peerzada AM, Williams A, O’Donnell C, Adkins S. Effect of Soil Moisture Regimes on the Glyphosate Sensitivity and Morpho-Physiological Traits of Windmill Grass (Chloris truncata R.Br.), Common Sowthistle (Sonchus oleraceus L.), and Flaxleaf Fleabane [Conyza bonariensis (L.) Cronq.]. PLANTS 2021; 10:plants10112345. [PMID: 34834708 PMCID: PMC8621532 DOI: 10.3390/plants10112345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 10/05/2021] [Accepted: 10/28/2021] [Indexed: 11/16/2022]
Abstract
The glasshouse study was conducted with the objectives of (i) investigating the effect of soil moisture variations on the control efficiency of glyphosate on windmill grass (Chloris truncata R.Br.), common sowthistle (Sonchus oleraceus L.), and flaxleaf fleabane [Conyza bonariensis (L.) Cronq.], (ii) evaluating the tolerance of tested weed species under soil moisture variations, and (iii) determining the morphological and physiological characteristics of these species to partially explain herbicide tolerance under periods of reduced soil moisture availability (RSM). The species’ tolerance to glyphosate increased significantly under reduced soil moisture availability (p < 0.001). The lethal dose to cause herbicide injury or biomass reduction by 50% (LD50) and 80% (LD80) in relation to untreated control for water-stressed plants [i.e., moderate soil moisture availability (MSM) and RSM] was significantly higher than that of plants grown under high soil moisture availability (HSM). The tolerance factor (TF) for C. truncata, S. oleraceus, and C. bonariensis, in terms of biomass reduction under RSM, was 2.6, 2.4, and 2.6, respectively, as compared to HSM. The results showed that the glyphosate sensitivity, especially at the sub-lethal rates, of the three weed species under study decreased as soil moisture availability reduced (p< 0.01). Overall glyphosate efficacy, in relation to the recommended rate, was unaffected, except for C. truncata; the weed survived the highest tested glyphosate rate [750 g active ingredient (a.i.) ha−1] under RSM. There was significant interaction between weed species and soil moisture regimes for weed morpho-physiological traits (p < 0.001), with reduced soil moisture having a more influential impact on the growth of C. bonariensis and S. oleraceus compared to C. truncata. Changes in the leaf characteristics, such as increased leaf thickness, higher leaf chlorophyll content, reduced leaf area, and limited stomatal activity for all the tested weed species under MSM and RSM in relation to HSM, partially explain the tolerance of species to glyphosate at sublethal rates.
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Shopova E, Katerova Z, Brankova L, Dimitrova L, Sergiev I, Todorova D, Talaat NB. Modulation of Physiological Stress Response of Triticum aestivum L. to Glyphosate by Brassinosteroid Application. Life (Basel) 2021; 11:1156. [PMID: 34833032 PMCID: PMC8623213 DOI: 10.3390/life11111156] [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: 09/21/2021] [Revised: 10/26/2021] [Accepted: 10/27/2021] [Indexed: 01/24/2023] Open
Abstract
The potential of brassinosteroids to modulate the physiological responses of winter wheat (Triticum aestivum L.) to herbicide stress was evaluated. Young winter wheat seedlings were treated with 24-epibrassinolide (EBL) and 24 h later were sprayed with glyphosate. The physiological responses of treated plants were assessed 14 days after herbicide application. Wheat growth was noticeably inhibited by glyphosate. The herbicide application significantly increased the content of the stress markers proline and malondialdehyde (MDA) evidencing oxidative damage. The content of phenolic compounds was decreased in the herbicide-treated plants. Slight activation of superoxide dismutase (SOD) and catalase (CAT) and considerable increase of glutathione reductase (GR) and guaiacol peroxidase (POX) activities were found. Increased POX and glutathione S-transferase (GST) activities were anticipated to be involved in herbicide detoxification. Conjugation with glutathione in herbicide-treated plants could explain the reduction of thiols suggesting unbalanced redox state. EBL application did not alter the plant growth but a moderate activation of antioxidant defense (POX, GR, and CAT activities and phenolic levels) and detoxifying enzyme GST was observed. The hormonal priming provoked a slight decrease in MDA and proline levels. The results demonstrate that EBL-pretreatment partly restored shoot growth and has a potential to mitigate the oxidative damages in glyphosate-treated plants through activation of the enzymatic antioxidant defense and increase of the phenolic compounds.
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Affiliation(s)
- Elena Shopova
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (L.B.); (L.D.); (I.S.); (D.T.)
| | - Zornitsa Katerova
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (L.B.); (L.D.); (I.S.); (D.T.)
| | - Liliana Brankova
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (L.B.); (L.D.); (I.S.); (D.T.)
| | - Ljudmila Dimitrova
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (L.B.); (L.D.); (I.S.); (D.T.)
| | - Iskren Sergiev
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (L.B.); (L.D.); (I.S.); (D.T.)
| | - Dessislava Todorova
- Institute of Plant Physiology and Genetics, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria; (E.S.); (L.B.); (L.D.); (I.S.); (D.T.)
| | - Neveen B. Talaat
- Department of Plant Physiology, Faculty of Agriculture, Cairo University, Giza 12613, Egypt;
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Soares C, Rodrigues F, Sousa B, Pinto E, Ferreira IMPLVO, Pereira R, Fidalgo F. Foliar Application of Sodium Nitroprusside Boosts Solanum lycopersicum L. Tolerance to Glyphosate by Preventing Redox Disorders and Stimulating Herbicide Detoxification Pathways. PLANTS 2021; 10:plants10091862. [PMID: 34579395 PMCID: PMC8466062 DOI: 10.3390/plants10091862] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/30/2021] [Accepted: 09/04/2021] [Indexed: 01/24/2023]
Abstract
Strategies to minimize the effects of glyphosate (GLY), the most used herbicide worldwide, on non-target plants need to be developed. In this context, the current study was designed to evaluate the potential of nitric oxide (NO), provided as 200 µM sodium nitroprusside (SNP), to ameliorate GLY (10 mg kg−1 soil) phytotoxicity in tomato plants. Upon herbicide exposure, plant development was majorly inhibited in shoots and roots, followed by a decrease in flowering and fruit set; however, the co-application of NO partially prevented these symptoms, improving plant growth. Concerning redox homeostasis, lipid peroxidation (LP) and reactive oxygen species (ROS) levels rose in response to GLY in shoots of tomato plants, but not in roots. Additionally, GLY induced the overaccumulation of proline and glutathione, and altered ascorbate redox state, but resulted in the inhibition of the antioxidant enzymes. Upon co-treatment with NO, the non-enzymatic antioxidants were not particularly changed, but an upregulation of all antioxidant enzymes was found, which helped to keep ROS and LP under control. Overall, data point towards the benefits of NO against GLY in tomato plants by reducing the oxidative damage and stimulating detoxification pathways, while also preventing GLY-induced impairment of flowering and fruit fresh mass.
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Affiliation(s)
- Cristiano Soares
- GreenUPorto—Sustainable Agrifood Production Research Centre & INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (F.R.); (B.S.); (R.P.); (F.F.)
- Correspondence:
| | - Francisca Rodrigues
- GreenUPorto—Sustainable Agrifood Production Research Centre & INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (F.R.); (B.S.); (R.P.); (F.F.)
| | - Bruno Sousa
- GreenUPorto—Sustainable Agrifood Production Research Centre & INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (F.R.); (B.S.); (R.P.); (F.F.)
| | - Edgar Pinto
- LAQV/REQUIMTE, Laboratory of Bromatology and Hydrology, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto (FFUP), Rua de Jorge Viterbo Ferreira nº 228, 4050-313 Porto, Portugal; (E.P.); (I.M.P.L.V.O.F.)
- Department of Environmental Health, School of Health, P.Porto (ESS-P.Porto), Rua Dr. António Bernardino de Almeida, 400, 4200-072 Porto, Portugal
| | - Isabel M. P. L. V. O. Ferreira
- LAQV/REQUIMTE, Laboratory of Bromatology and Hydrology, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto (FFUP), Rua de Jorge Viterbo Ferreira nº 228, 4050-313 Porto, Portugal; (E.P.); (I.M.P.L.V.O.F.)
| | - Ruth Pereira
- GreenUPorto—Sustainable Agrifood Production Research Centre & INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (F.R.); (B.S.); (R.P.); (F.F.)
| | - Fernanda Fidalgo
- GreenUPorto—Sustainable Agrifood Production Research Centre & INOV4AGRO, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal; (F.R.); (B.S.); (R.P.); (F.F.)
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25
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Jiang L, Pan B, Liang J, Wang B, Yang Y, Lin Y. Earthworm casts restrained the accumulation and phytotoxicity of soil glyphosate to cowpea (Vigna unguiculata (L.) Walp.) plants. CHEMOSPHERE 2021; 279:130571. [PMID: 33878696 DOI: 10.1016/j.chemosphere.2021.130571] [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: 02/23/2021] [Revised: 04/06/2021] [Accepted: 04/10/2021] [Indexed: 06/12/2023]
Abstract
The heavy use of glyphosate during the cultivation of glyphosate-resistant crops, would trigger the so called "pseudo-persistent" glyphosate in soil, thereby threatening agricultural environment, crop production, and human health through food safety. Such that, there is pressing need for the development of strategies for the effective management of glyphosate contamination in soil to promote cleaner agricultural production. In this study, as witnessed via characterizing the bioavailability and phytotoxicity of glyphosate to cowpea plants in soils applied with or without earthworm casts (EWCs), EWCs could significantly facilitate glyphosate desorption from soil, thus enhance its bioaccessibility, nonetheless, sharply decreased rather than increased the accumulation of glyphosate in cowpea plants via reducing the residue pool of glyphosate in the soil. Consequently, in comparison with the glyphosate-alone group, EWCs involvement triggered the increase of chlorophyll content, alleviation of ROS accumulation and lipid peroxidation of membrane, and in turn reduced the activity of a series of stress-tolerance enzymes by means of down-regulating the expression of the corresponding mRNA; ultimately, helped plants to reverse the glyphosate-induced growth suppression. Our findings demonstrated that, EWCs were promising candidate for the cost-effective and easy-to-operate remediation and reuse of glyphosate-contaminated soil, while also being able to improve the quality of the cultivated land and promote crop growth and resistance as a nutrients supplier.
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Affiliation(s)
- Lei Jiang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Haikou, 571101, China
| | - Bo Pan
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
| | - Jingqi Liang
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Bingjie Wang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China
| | - Yi Yang
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China; Key Laboratory of Integrated Pest Management on Tropical Crops, Ministry of Agriculture, Haikou, 571101, China
| | - Yong Lin
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, 571101, China.
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Silicon Improves the Redox Homeostasis to Alleviate Glyphosate Toxicity in Tomato Plants-Are Nanomaterials Relevant? Antioxidants (Basel) 2021; 10:antiox10081320. [PMID: 34439568 PMCID: PMC8389300 DOI: 10.3390/antiox10081320] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 08/18/2021] [Accepted: 08/19/2021] [Indexed: 01/24/2023] Open
Abstract
Given the widespread use of glyphosate (GLY), this agrochemical is becoming a source of contamination in agricultural soils, affecting non-target plants. Therefore, sustainable strategies to increase crop tolerance to GLY are needed. From this perspective and recalling silicon (Si)'s role in alleviating different abiotic stresses, the main goal of this study was to assess if the foliar application of Si, either as bulk or nano forms, is capable of enhancing Solanum lycopersicum L. tolerance to GLY (10 mg kg-1). After 28 day(s), GLY-treated plants exhibited growth-related disorders in both shoots and roots, accompanied by an overproduction of superoxide anion (O2•-) and malondialdehyde (MDA) in shoots. Although plants solely exposed to GLY have activated non-enzymatic antioxidant mechanisms (proline, ascorbate and glutathione), a generalized inhibition of the antioxidant enzymes was found, suggesting the occurrence of great redox disturbances. In response to Si or nano-SiO2 co-application, most of GLY phytotoxic effects on growth were prevented, accompanied with a better ROS removal, especially by an upregulation of the main antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX). Overall, results pointed towards the potential of both sources of Si to reduce GLY-induced oxidative stress, without major differences between their efficacy.
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Touzout N, Mehallah H, Moralent R, Moulay M, Nemmiche S. Phytotoxic evaluation of neonicotinoid imidacloprid and cadmium alone and in combination on tomato (Solanum lycopersicum L.). ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:1126-1137. [PMID: 34085160 DOI: 10.1007/s10646-021-02421-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
Neonicotinoids and heavy metals pollution exist simultaneously in agro ecosystem. However, little is known about their combined ecotoxicological effects on non-target crop plants. We have selected imidacloprid (IMI) and cadmium (Cd), applied alone and in combination, to evaluate their effect on growth, physiological and biochemical parameters of tomato. Results showed that the single application of contaminants (IMI and/or Cd) adversely affected both the growth and chlorophyll pigment, and Cd alone application was more phytotoxic than IMI. However, their combined action aggravated the inhibitory effect and indicate a synergistic effect, but it exerted antagonistic effects on chlorophyll pigment inhibition compared with IMI and Cd alone treatments. Both chemicals increased hydrogen peroxide level and generated lipid peroxidation, and the co-contamination exacerbates oxidative stress by their synergistic effect. Those results implicate that disturbance of cellular redox status is the plausible mechanism for IMI and Cd induced toxicity. In conclusion, the single or combined IMI and Cd cause negative effects on tomatoes.
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Affiliation(s)
- Nabil Touzout
- Faculty of Nature and Life Sciences, Department of Agronomy, University of Mostaganem, Mostaganem, 27000, Algeria
| | - Hafidha Mehallah
- Faculty of Nature and Life Sciences, Department of Biology, University of Mostaganem, Mostaganem, 27000, Algeria
| | - Radia Moralent
- Faculty of Nature and Life Sciences, Department of Biology, University of Mostaganem, Mostaganem, 27000, Algeria
| | - Mohammed Moulay
- Faculty of Nature and Life Sciences, Department of Biology, University of Mostaganem, Mostaganem, 27000, Algeria
- Stem Cells Research Group, KFMRC, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia
| | - Saïd Nemmiche
- Faculty of Nature and Life Sciences, Department of Biology, University of Mostaganem, Mostaganem, 27000, Algeria.
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Pinto M, Soares C, Martins M, Sousa B, Valente I, Pereira R, Fidalgo F. Herbicidal Effects and Cellular Targets of Aqueous Extracts from Young Eucalyptus globulus Labill. Leaves. PLANTS 2021; 10:plants10061159. [PMID: 34200269 PMCID: PMC8273694 DOI: 10.3390/plants10061159] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/29/2021] [Accepted: 06/02/2021] [Indexed: 11/20/2022]
Abstract
Eucalyptus globulus Labill. is a widespread exotic species that contributes to the formation of fire-prone environments, a great concern under climate change conditions. Therefore, sustainable practices to help locals managing eucalyptus stands are needed. In this perspective, harnessing eucalyptus’ specialized metabolism as a source of allelochemicals can be a promising approach for weed control. Thus, the main goals of this work were to evaluate the herbicidal potential of post-fire regenerated E. globulus leaves against Portulaca oleracea L. and to unravel the physiological mechanisms behind this phytotoxic action. For this, aqueous extracts of fresh (FLE; 617 g FW L−1) or oven-dried leaves (DLE; 250 g DW L−1) were foliar-sprayed at different dilutions in purslane seedlings. After five weeks, results revealed that DLE at the highest dose detained the greatest herbicidal activity, affecting purslane growth and cellular viability. Moreover, biochemical data pointed towards an overproduction of reactive oxygen species, causing harsh oxidative damage in roots, where the upregulation of important cellular players, like sugars, amino acids, and proline, was not able to reestablish redox homeostasis. Overall, this study proved that dried leaves from young E. globulus had potent herbicidal properties against P. oleracea and can represent a feasible strategy for weed management.
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Affiliation(s)
- Mafalda Pinto
- GreenUPorto-Sustainable Agrifood Production Research Centre, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal; (M.P.); (C.S.); (M.M.); (B.S.); (R.P.)
| | - Cristiano Soares
- GreenUPorto-Sustainable Agrifood Production Research Centre, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal; (M.P.); (C.S.); (M.M.); (B.S.); (R.P.)
| | - Maria Martins
- GreenUPorto-Sustainable Agrifood Production Research Centre, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal; (M.P.); (C.S.); (M.M.); (B.S.); (R.P.)
| | - Bruno Sousa
- GreenUPorto-Sustainable Agrifood Production Research Centre, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal; (M.P.); (C.S.); (M.M.); (B.S.); (R.P.)
| | - Inês Valente
- REQUIMTE, LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal;
- REQUIMTE, LAQV, ICBAS, Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Ruth Pereira
- GreenUPorto-Sustainable Agrifood Production Research Centre, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal; (M.P.); (C.S.); (M.M.); (B.S.); (R.P.)
| | - Fernanda Fidalgo
- GreenUPorto-Sustainable Agrifood Production Research Centre, Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 4169-007 Porto, Portugal; (M.P.); (C.S.); (M.M.); (B.S.); (R.P.)
- Correspondence:
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Kalyabina VP, Esimbekova EN, Kopylova KV, Kratasyuk VA. Pesticides: formulants, distribution pathways and effects on human health - a review. Toxicol Rep 2021; 8:1179-1192. [PMID: 34150527 PMCID: PMC8193068 DOI: 10.1016/j.toxrep.2021.06.004] [Citation(s) in RCA: 86] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/28/2021] [Accepted: 06/02/2021] [Indexed: 12/12/2022] Open
Abstract
Pesticides are commonly used in agriculture to enhance crop production and control pests. Therefore, pesticide residues can persist in the environment and agricultural crops. Although modern formulations are relatively safe to non-target species, numerous theoretical and experimental data demonstrate that pesticide residues can produce long-term negative effects on the health of humans and animals and stability of ecosystems. Of particular interest are molecular mechanisms that mediate the start of a cascade of adverse effects. This is a review of the latest literature data on the effects and consequences of contamination of agricultural crops by pesticide residues. In addition, we address the issue of implicit risks associated with pesticide formulations. The effects of pesticides are considered in the context of the Adverse Outcome Pathway concept.
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Affiliation(s)
- Valeriya P. Kalyabina
- Siberian Federal University, 79 Svobodny Prospect, Krasnoyarsk, 660041, Russia
- Institute of Biophysics SB RAS, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
| | - Elena N. Esimbekova
- Siberian Federal University, 79 Svobodny Prospect, Krasnoyarsk, 660041, Russia
- Institute of Biophysics SB RAS, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
| | - Kseniya V. Kopylova
- Siberian Federal University, 79 Svobodny Prospect, Krasnoyarsk, 660041, Russia
| | - Valentina A. Kratasyuk
- Siberian Federal University, 79 Svobodny Prospect, Krasnoyarsk, 660041, Russia
- Institute of Biophysics SB RAS, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
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Zeng H, Xu H, Liu G, Wei Y, Zhang J, Shi H. Physiological and metagenomic strategies uncover the rhizosphere bacterial microbiome succession underlying three common environmental stresses in cassava. JOURNAL OF HAZARDOUS MATERIALS 2021; 411:125143. [PMID: 33858103 DOI: 10.1016/j.jhazmat.2021.125143] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/28/2020] [Accepted: 01/12/2021] [Indexed: 06/12/2023]
Abstract
The most common environmental pollutants such as cadmium (Cd), glyphosate and tetracycline have led to profoundly adverse impacts on plant productivity. However, how tropical crops such as cassava sense these pollutants via roots and how rhizosphere microbiome interacts with the host and pollutants remain largely unknown. In this study, we found these stresses significantly inhibited plant growth and triggered cell damage in a dosage-dependent manner, and the toxic effect on redox homeostasis was correlated with antioxidant metabolism. Using metagenomics technique, we found the rhizosphere microbiomes dynamically altered as the dose of these stresses increased. We also identified stressor-associated metagenome-assembled genomes and microbial metabolic pathways as well as mobile genetic elements in the rhizosphere microbiomes. Next, a co-occurrence network of both physiological and microbiome features was constructed to explore how these pollutants derived oxidative damage through the microbiome succession. Notably, phyllosphere transplantation of Agrobacterium tumefaciens or Pseudomonas stutzeri can significantly alleviate the negative effects of stresses on cassava growth and redox homeostasis. Collectively, this study demonstrated the dynamics of rhizosphere bacterial microbiome of cassava under three common environmental stresses, and A. tumefaciens and P. stutzeri could be developed as potential beneficial bacteria to alleviate Cd, glyphosate and tetracycline-triggered damage to cassava.
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Affiliation(s)
- Hongqiu Zeng
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan 570228, China
| | - Haoran Xu
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan 570228, China
| | - Guoyin Liu
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan 570228, China
| | - Yunxie Wei
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan 570228, China
| | - Jiachao Zhang
- College of Food Science and Engineering, Hainan University, Haikou, Hainan 570228, China.
| | - Haitao Shi
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan 570228, China.
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Martins V, Soares C, Spormann S, Fidalgo F, Gerós H. Vineyard calcium sprays reduce the damage of postharvest grape berries by stimulating enzymatic antioxidant activity and pathogen defense genes, despite inhibiting phenolic synthesis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 162:48-55. [PMID: 33667966 DOI: 10.1016/j.plaphy.2021.02.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 02/20/2021] [Indexed: 05/29/2023]
Abstract
Calcium supplements have been increasingly used for decay prevention, sanitation and nutritional enrichment of fruits, as more environmentally friendly alternatives to fungicides. However, little is known on the effects of these supplements on grape berry biochemical and molecular properties during storage. In this study, we addressed the hypothesis that the application of calcium chloride (CaCl2) in grapevines throughout the fruiting season reduces damage (and decay) of postharvest grape berries, through several biochemical and transcriptional modifications in sugar transport, secondary metabolism, antioxidant activity, cell wall organization and pathogen defense. Results showed that calcium (Ca) treatments in cv. "Vinhão" vines increased fruit Ca content and significantly decreased fruit damage by 60%, 10-d after storage at 4 °C. Grape berries from Ca-treated vines displayed lower levels of total phenolics and anthocyanins, compared to control fruits, corroborating the downregulation of PAL1 and STS which resulted in decreased non-enzymatic antioxidant capacity estimated by FRAP assay. In contrast, a strong upregulation of CAT1, ASPX1, ASPX3, GLPX1, CSD3 and CSD6 encoding antioxidant enzymes was observed. Accordingly, catalase enzyme activity was stimulated, significantly reducing hydrogen peroxide (H2O2) levels by 36%. The overexpression of the cell wall and pathogen defense genes PME, PGIP, PIN and PR1 likely contributed to the reduction in fruit rot. This work suggested that preharvest Ca treatment is an efficient agronomical strategy that prolongs the shelf life of grape berries through modifications at molecular and biochemical levels, bringing further insight on the benefits and drawbacks of preharvest Ca applications on postharvest fruit quality attributes.
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Affiliation(s)
- Viviana Martins
- Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes and Alto Douro, 5001-801, Vila Real, Portugal.
| | - Cristiano Soares
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal.
| | - Sofia Spormann
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal.
| | - Fernanda Fidalgo
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal.
| | - Hernâni Gerós
- Centre of Molecular and Environmental Biology, Department of Biology, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal; Centre for the Research and Technology of Agro-Environmental and Biological Sciences, University of Trás-os-Montes and Alto Douro, 5001-801, Vila Real, Portugal; Centre of Biological Engineering (CEB), Department of Biological Engineering, University of Minho, Campus de Gualtar, 4710-057, Braga, Portugal.
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Serra AA, Bittebière AK, Mony C, Slimani K, Pallois F, Renault D, Couée I, Gouesbet G, Sulmon C. Local-scale dynamics of plant-pesticide interactions in a northern Brittany agricultural landscape. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 744:140772. [PMID: 32711307 DOI: 10.1016/j.scitotenv.2020.140772] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/24/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
Soil pollution by anthropogenic chemicals is a major concern for sustainability of crop production and of ecosystem functions mediated by natural plant biodiversity. Understanding the complex effects of soil pollution requires multi-level and multi-scale approaches. Non-target and agri-environmental plant communities of field margins and vegetative filter strips are confronted with agricultural xenobiotics through soil contamination, drift, run-off and leaching events that result from chemical applications. Plant-pesticide dynamics in vegetative filter strips was studied at field scale in the agricultural landscape of a long-term ecological research network in northern Brittany (France). Vegetative filter strips effected significant pesticide abatement between the field and riparian compartments. However, comparison of pesticide usage modalities and soil chemical analysis revealed the extent and complexity of pesticide persistence in fields and vegetative filter strips, and suggested the contribution of multiple sources (yearly carry-over, interannual persistence, landscape-scale contamination). In order to determine the impact of such persistence, plant dynamics was followed in experimentally-designed vegetative filter strips of identical initial composition (Agrostis stolonifera, Anthemis tinctoria/Cota tinctoria, Centaurea cyanus, Fagopyrum esculentum, Festuca rubra, Lolium perenne, Lotus corniculatus, Phleum pratense, Trifolium pratense). After homogeneous vegetation establishment, experimental vegetative filter strips underwent rapid changes within the following two years, with Agrostis stolonifera, Festuca rubra, Lolium perenne and Phleum pratense becoming dominant and with the establishment of spontaneous vegetation. Co-inertia analysis showed that plant dynamics and soil residual pesticides could be significantly correlated, with the triazole fungicide epoxiconazole, the imidazole fungicide prochloraz and the neonicotinoid insecticide thiamethoxam as strong drivers of the correlation. However, the correlation was vegetative-filter-strip-specific, thus showing that correlation between plant dynamics and soil pesticides likely involved additional factors, such as threshold levels of residual pesticides. This situation of complex interactions between plants and soil contamination is further discussed in terms of agronomical, environmental and health issues.
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Affiliation(s)
- Anne-Antonella Serra
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - Anne-Kristel Bittebière
- Université de Lyon 1, CNRS, UMR 5023 LEHNA, 43 Boulevard du 11 novembre 1918, F-69622 Villeurbanne Cedex, France
| | - Cendrine Mony
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - Kahina Slimani
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - Frédérique Pallois
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - David Renault
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - Ivan Couée
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France.
| | - Gwenola Gouesbet
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - Cécile Sulmon
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
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Soares C, Pereira R, Martins M, Tamagnini P, Serôdio J, Moutinho-Pereira J, Cunha A, Fidalgo F. Glyphosate-dependent effects on photosynthesis of Solanum lycopersicum L.-An ecophysiological, ultrastructural and molecular approach. JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122871. [PMID: 32450466 DOI: 10.1016/j.jhazmat.2020.122871] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 04/24/2020] [Accepted: 05/04/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to assess the toxicity of glyphosate (GLY; 0, 10, 20 and 30 mg kg-1) in Solanum lycopersicum L., particularly focusing on the photosynthetic metabolism. By combining ecophysiological, ultrastructural, biochemical and molecular tools, the results revealed that the exposure of tomato plants to GLY led to alterations in leaf water balance regulation [increasing stomatal conductance (gs) and decreasing water use efficiency (WUEi) at higher concentrations] and induced slight alterations in the structural integrity of cells, mainly in chloroplasts, accompanied by a loss of cell viability. Moreover, the transcriptional and biochemical control of several photosynthetic-related parameters was reduced upon GLY exposure. However, in vivo chlorophyll fluorometry and IRGA gas-exchange studies revealed that the photosynthetic yield of S. lycopersicum was not repressed by GLY. Overall, GLY impacts cellular and subcellular homeostasis (by affecting chloroplast structure, reducing photosynthetic pigments and inhibiting photosynthetic-related genes transcription), and leaf structure, but is not reducing the carbon flow on a leaf area basis. Altogether, these results suggest a trade-off effect in which GLY-induced toxicity is compensated by a higher photosynthetic activity related to GLY-induced dysfunction in gs and an increase in mesophyll thickness/density, allowing the viable leaf cells to maintain their photosynthetic capacity.
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Affiliation(s)
- Cristiano Soares
- GreenUPorto - Sustainable Agrifood Production Research Centre, Department of Biology, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal.
| | - Ruth Pereira
- GreenUPorto - Sustainable Agrifood Production Research Centre, Department of Biology, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Maria Martins
- GreenUPorto - Sustainable Agrifood Production Research Centre, Department of Biology, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Paula Tamagnini
- Bioengineering and Synthetic Microbiology Group, i3S - Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal; IBMC - Instituto de Biologia Celular e Molecular, University of Porto, Porto, Portugal; Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - João Serôdio
- Biology Department and CESAM - Centre for Environmental and Marine Studies, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - José Moutinho-Pereira
- CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, Universidade de Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - Ana Cunha
- Biology Department & CITAB - Centre for the Research and Technology of Agro-Environmental and Biological Sciences, School of Sciences, University of Minho, Campus de Gualtar, 4710-057 Braga, Portugal; CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
| | - Fernanda Fidalgo
- GreenUPorto - Sustainable Agrifood Production Research Centre, Department of Biology, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
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Khan S, Zhou JL, Ren L, Mojiri A. Effects of glyphosate on germination, photosynthesis and chloroplast morphology in tomato. CHEMOSPHERE 2020; 258:127350. [PMID: 32554012 DOI: 10.1016/j.chemosphere.2020.127350] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 06/04/2020] [Accepted: 06/05/2020] [Indexed: 06/11/2023]
Abstract
The adverse effects of glyphosate herbicide on plants are well recognised, however, potential hormetic effects have not been well studied. This study aimed to use tomato as a model organism to explore the potential hormetic effects of glyphosate in water (0-30 mg L-1) and in compost soil (0-30 mg kg-1). The growth-promoting effects of glyphosate at concentrations of 0.03-1 mg L-1 in water or 0.03-1 mg kg-1 in compost were demonstrated in tomato for the first time. These hormetic effects were manifest as increased hypocotyl and radicle growth of seedlings germinated on paper towel soaked in glyphosate solution and also in crops which had been sprayed with glyphosate. Increased rates of photosynthesis (up to 2-fold) were observed in 4-week old crops when seeds were sown in compost amended with glyphosate and also when leaves were sprayed with glyphosate. The examination of chloroplast morphology using transmission electron microscopy revealed that the hormetic effects were associated with elongation of chloroplasts, possibly due to lateral expansion of thylakoid grana.
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Affiliation(s)
- Sajida Khan
- Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518108, China; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang, 524088, China; Department of Environmental Science, International Islamic University, Islamabad, Pakistan
| | - John L Zhou
- Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518108, China; School of Chemistry and Environment, Guangdong Ocean University, Zhanjiang, 524088, China.
| | - Lei Ren
- Shenzhen Institute of Guangdong Ocean University, Shenzhen, 518108, China; College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, 524088, China
| | - Amin Mojiri
- Department of Civil and Environmental Engineering, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashihiroshima, 739-8527, Hiroshima, Japan
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Ecotoxicological Assessment of a Glyphosate-Based Herbicide in Cover Plants: Medicago sativa L. as a Model Species. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10155098] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Despite the several innovations that have been incorporated in agriculture, the use of herbicides, especially glyphosate (GLY), is still the major tool for weed control. Although this herbicide has a notable worldwide representation, concerns about its environmental safety were recently raised, with a lot of divergence between studies on its non-target toxicity. Therefore, it is of utmost importance to understand the risks of this herbicide to non-target plants, including cover crop species, which have a crucial role in maintaining agroecosystems functions and in preventing soil erosion. Thus, this work aims to evaluate the growth and physiological responses of a cover plant species (Medicago sativa L.) exposed to increasing concentrations of a GLY-based herbicide (GBH), particularly focusing on the oxidative metabolism. The growth of roots and shoots was affected, being this effect accompanied by a rise of lipid peroxidation, suggesting the occurrence of oxidative stress, and by an activation of the antioxidant (AOX) system. Indeed, the results showed that adverse effects are visible at active ingredient concentrations of 8.0 mg kg−1, with the lowest EC50 being 12 mg kg−1, showing that GBH-contaminated soils may pose a risk to the survival of non-target plants in the most contaminated areas. Overall, these findings proved that GBH greatly impairs the growth of a non-target plant, strengthening the need of additional studies to unravel the real risks associated with the over usage of this pesticide, since there is an evident lack of studies performed with contaminated soils.
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Sousa B, Soares C, Oliveira F, Martins M, Branco-Neves S, Barbosa B, Ataíde I, Teixeira J, Azenha M, Azevedo RA, Fidalgo F. Foliar application of 24-epibrassinolide improves Solanum nigrum L. tolerance to high levels of Zn without affecting its remediation potential. CHEMOSPHERE 2020; 244:125579. [PMID: 32050351 DOI: 10.1016/j.chemosphere.2019.125579] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/04/2019] [Accepted: 12/07/2019] [Indexed: 06/10/2023]
Abstract
Although Solanum nigrum L. is a phytoremediator for different metals, its growth and physiology are still compromised by toxic levels of zinc (Zn). Thus, the development of eco-friendly strategies to enhance its tolerance, maintaining remediation potential is of special interest. This study evaluated the potential of 24-epibrassinolide (24-EBL) to boost S. nigrum defence against Zn towards a better growth rate and remediation potential. After 24 days of exposure, the results revealed that Zn-mediated inhibitory effects on biomass and biometry were efficiently mitigated upon application of 24-EBL, without affecting Zn accumulation. The evaluation of oxidative stress markers reported that Zn excess stimulated the accumulation of superoxide anion (O2.-), but reduced hydrogen peroxide (H2O2) levels, while not altering lipid peroxidation (LP). This was accompanied by an up-regulation of the antioxidant system, especially proline, superoxide dismutase (SOD) and ascorbate peroxidase (APX) in both organs, and ascorbate in roots of Zn-exposed plants. Foliar application of 24-EBL, however, induced distinctive effects, lowering proline levels in both organs, as well as APX activity in shoots and SOD in roots, whilst stimulating GSH and total thiols in both organs, as well as SOD and APX activity, in shoots and in roots, respectively. Probably due to a better antioxidant efficiency, levels of O2.- and H2O2 in pre-treated plants remained identical to the control, while LP further decreased in shoots. Overall, our results indicate a protective effect of 24-EBL on S. nigrum response to excess Zn, contributing for a better tolerance and growth rate, without disturbing its phytoremediation potential.
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Affiliation(s)
- Bruno Sousa
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal.
| | - Cristiano Soares
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Francisca Oliveira
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Maria Martins
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Simão Branco-Neves
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Beatriz Barbosa
- Colégio Internato dos Carvalhos (CIC), Rua Moeiro s/n, 4415-133, Pedroso, Portugal
| | - Inês Ataíde
- Colégio Internato dos Carvalhos (CIC), Rua Moeiro s/n, 4415-133, Pedroso, Portugal
| | - Jorge Teixeira
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Manuel Azenha
- CIQ-UP, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
| | - Ricardo Antunes Azevedo
- Departamento de Genética, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Av. Pádua Dias, 11, CP. 83, CEP 13418-900, Piracicaba, Brazil
| | - Fernanda Fidalgo
- GreenUPorto - Sustainable Agrifood Production Research Centre, Biology Department, Faculty of Sciences of University of Porto, Rua do Campo Alegre s/n, 4169-007, Porto, Portugal
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Mesnage R, Oestreicher N, Poirier F, Nicolas V, Boursier C, Vélot C. Transcriptome profiling of the fungus Aspergillus nidulans exposed to a commercial glyphosate-based herbicide under conditions of apparent herbicide tolerance. ENVIRONMENTAL RESEARCH 2020; 182:109116. [PMID: 32069763 DOI: 10.1016/j.envres.2020.109116] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 12/18/2019] [Accepted: 01/02/2020] [Indexed: 05/20/2023]
Abstract
Glyphosate-based herbicides, such as Roundup®, are the most widely used non-selective, broad-spectrum herbicides. The release of these compounds in large amounts into the environment is susceptible to affect soil quality and health, especially because of the non-target effects on a large range of organisms including soil microorganisms. The soil filamentous fungus Aspergillus nidulans, a well-characterized experimental model organism that can be used as a bio-indicator for agricultural soil health, has been previously shown to be highly affected by Roundup GT Plus (R450: 450 g/L of glyphosate) at concentrations far below recommended agricultural application rate, including at a dose that does not cause any macroscopic effect. In this study, we determined alterations in the transcriptome of A. nidulans when exposed to R450 at a dose corresponding to the no-observed-adverse-effect level (NOAEL) for macroscopic parameters. A total of 1816 distinct genes had their expression altered. The most affected biological functions were protein synthesis, amino acids and secondary metabolisms, stress response, as well as detoxification pathways through cytochromes P450, glutathione-S-transferases, and ABC transporters. These results partly explain the molecular mechanisms underlying alterations in growth parameters detected at higher concentrations for this ascomycete fungus. In conclusion, our results highlight molecular disturbances in a soil fungus under conditions of apparent tolerance to the herbicide, and thus confirm the need to question the principle of "substantial equivalence" when applied to plants made tolerant to herbicides.
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Affiliation(s)
- Robin Mesnage
- Gene Expression and Therapy Group, King's College London, Faculty of Life Sciences & Medicine, Department of Medical and Molecular Genetics, 8th Floor, Tower Wing, Guy's Hospital, Great Maze Pond, London, SE1 9RT, United Kingdom; CRIIGEN, 42 Rue de Lisbonne, 75008, Paris, France.
| | - Nathalie Oestreicher
- Equipe VEAC, Université Paris-Sud, Faculté des Sciences, Bât. 350, Avenue Jean Perrin, 91405, Orsay, France; Pôle Risques MRSH-CNRS, EA2608, Université de Caen, Esplanade de la Paix, 14032, Caen, France.
| | - Florence Poirier
- Université Paris 13, UFR SMBH, Plateforme PPUP13, 1 Rue de Chablis, 93017, Bobigny Cedex, France.
| | - Valérie Nicolas
- UMS-IPSIT, US31 Inserm-UMS3679 CNRS, Plateformes Trans-Prot et d'Imagerie Cellulaire, Université Paris-Sud, Faculté de Pharmacie, Tour E1, 5 Rue Jean-Baptiste Clément, 92296, Châtenay-Malabry, France.
| | - Céline Boursier
- UMS-IPSIT, US31 Inserm-UMS3679 CNRS, Plateformes Trans-Prot et d'Imagerie Cellulaire, Université Paris-Sud, Faculté de Pharmacie, Tour E1, 5 Rue Jean-Baptiste Clément, 92296, Châtenay-Malabry, France.
| | - Christian Vélot
- CRIIGEN, 42 Rue de Lisbonne, 75008, Paris, France; Equipe VEAC, Université Paris-Sud, Faculté des Sciences, Bât. 350, Avenue Jean Perrin, 91405, Orsay, France; Pôle Risques MRSH-CNRS, EA2608, Université de Caen, Esplanade de la Paix, 14032, Caen, France.
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Serra AA, Miqueau A, Ramel F, Couée I, Sulmon C, Gouesbet G. Species- and organ-specific responses of agri-environmental plants to residual agricultural pollutants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 694:133661. [PMID: 31756788 DOI: 10.1016/j.scitotenv.2019.133661] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/19/2019] [Accepted: 07/28/2019] [Indexed: 06/10/2023]
Abstract
Soil pollution by anthropogenic chemicals is a major concern for sustainability of crop production and of ecosystem functions mediated by natural plant biodiversity. The complex effects on plants are however difficult to apprehend. Plant communities of field margins, vegetative filter strips or rotational fallows are confronted with agricultural pollutants through residual soil contamination and/or through drift, run-off and leaching events that result from chemical applications. Exposure to xenobiotics and heavy metals causes biochemical, physiological and developmental effects. However, the range of doses, modalities of exposure, metabolization of contaminants into derived xenobiotics, and combinations of contaminants result in variable and multi-level effects. Understanding these complex plant-pollutant interactions cannot directly rely on toxicological or agronomical approaches that focus on the effects of field-rate pesticide applications. It must take into account exposure at root level, sublethal concentrations of bioactive compounds and functional biodiversity of the plant species that are affected. The present study deals with agri-environmental plant species of field margins, vegetative filter strips or rotational fallows in European agricultural landscapes. Root and shoot physiological and growth responses were compared under controlled conditions that were optimally adjusted for each plant species. Contrasted responses of growth inhibition, no adverse effect or growth enhancement depended on species, organ and nature of contaminant. However, all of the agricultural contaminants under study (pesticides, pesticide metabolites, heavy metals, polycyclic aromatic hydrocarbons) had significant effects under conditions of sublethal exposure on at least some of the plant species. The fungicide tebuconazole and polycyclic aromatic hydrocarbon fluoranthene, which gave highest levels of responses, induced both activation or inhibition effects, in different plant species or in different organs of the same plant species. These complex effects are discussed in terms of dynamics of agri-environmental plants and of ecological consequences of differential root-shoot growth under conditions of soil contamination.
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Affiliation(s)
- Anne-Antonella Serra
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - Amélie Miqueau
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - Fanny Ramel
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - Ivan Couée
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France.
| | - Cécile Sulmon
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
| | - Gwenola Gouesbet
- Univ Rennes, Université de Rennes 1, CNRS, ECOBIO [(Ecosystems-Biodiversity-Evolution)] - UMR 6553, Campus de Beaulieu, 263 avenue du Général Leclerc, F-35042 Rennes Cedex, France
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Sharma A, Yuan H, Kumar V, Ramakrishnan M, Kohli SK, Kaur R, Thukral AK, Bhardwaj R, Zheng B. Castasterone attenuates insecticide induced phytotoxicity in mustard. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 179:50-61. [PMID: 31026750 DOI: 10.1016/j.ecoenv.2019.03.120] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 03/18/2019] [Accepted: 03/25/2019] [Indexed: 05/02/2023]
Abstract
In the current investigation, we studied role of castasterone (CS), (a bioactive brassinosteroid) in Brassica juncea grown under imidacloprid (IMI) stress. We observed that CS-seed treatment resulted in the recovery of seedling growth under IMI toxicity. Seed treatment with CS, significantly enhanced the contents of pigments like chlorophylls, carotenoids, anthocyanins and xanthophylls under stress. Oxidative stress generated by the production of reactive oxygen species (ROS) like hydrogen peroxide and superoxide anion, was reduced after CS treatment under IMI toxicity. Antioxidative defense system got activated after CS-seed treatment, resulting in the increased activities of enzymes. Moreover, CS-seed treatment under IMI stress also stimulated the biosynthesis of organic acids of Krebs cycle (citrate, succinate, fumarate and malate) and phenolics. We also noticed that CS is also involved in the regulation of the gene expression of some key enzymes involved in pigment metabolism (CHLASE, PSY, CHS), carbon fixation (RUBISCO), Krebs cycle (CS, SUCLG1, SDH, FH), ROS generation (RBO), antioxidative enzymes (SOD, CAT, POD, DHAR, GR, GST), phenolic biosynthesis (PAL) and pesticide detoxification system (CXE, P450, NADH). This modulated gene expression after CS-treatment activated the insecticide detoxification, leading to the reduction of IMI residues. Data analysis using multivariate statistical technique i.e. multiple linear regression, also supported the fact that CS can efficiently reduce IMI induced phytotoxicity in B. juncea.
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Affiliation(s)
- Anket Sharma
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China.
| | - Huwei Yuan
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Vinod Kumar
- Department of Botany, DAV University, Sarmastpur, Jalandhar, 144012, Punjab, India
| | - M Ramakrishnan
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China
| | - Sukhmeen Kaur Kohli
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Ravdeep Kaur
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India; Department of Chemistry, Lovely Professional University, Jalandhar, Punjab, 144411, India
| | - Ashwani Kumar Thukral
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Renu Bhardwaj
- Plant Stress Physiology Lab, Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Bingsong Zheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, 311300, China.
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Spormann S, Soares C, Fidalgo F. Salicylic acid alleviates glyphosate-induced oxidative stress in Hordeum vulgare L. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 241:226-234. [PMID: 31005000 DOI: 10.1016/j.jenvman.2019.04.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 03/20/2019] [Accepted: 04/10/2019] [Indexed: 05/15/2023]
Abstract
Glyphosate (GLY) is considered the most used herbicide in the world and has been associated with several environmental contamination risks. Despite being partially degraded by soil microorganisms, its residues can negatively affect the growth of valuable non-target plants. Thus, there is a need to find new strategies that minimize its impacts and enhance crop tolerance to GLY, allowing a more advantageous and safer, use of this herbicide. Salicylic acid (SA) is a hormone-like substance, able to enhance the efficiency of the antioxidant (AOX) system in plants and their tolerance to oxidative stress. This study aimed to unveil the effects of SA (100 μM) on the oxidative status of Hordeum vulgare L. in response to GLY (30 mg kg-1). After 14 days of growth, the presence of GLY led to a significant inhibition of growth, an accumulation of hydrogen peroxide (H2O2) and superoxide anion (O2-), an increase in lipid peroxidation (LP), proline and non-protein thiols, a decrease of the content of reduced ascorbate (AsA) and an upregulation of AOX enzymes. The exogenous application of SA mitigated the effects of GLY on growth, amount of H2O2 and degree of PL. It has also contributed to the reduction of AsA content, production of non-protein thiols and increased AOX enzymatic activity, particularly superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX) and gluthatione S-transferase (GST). These results show a positive role of SA against GLY induced oxidative stress, by modulating the AOX capacity of barley plants. However, the observed phytotoxicity of GLY was so pronounced, that the ameliorating effect of SA on AOX defenses was not enough to significantly overcome the herbicide-induced oxidative damage.
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Affiliation(s)
- Sofia Spormann
- GreenUPorto - Centro de Investigação Em Produção Agroalimentar Sustentável, BiologyDepartment, FacultyofSciences, University of Porto, Rua Campo Alegre S/n, 4169-007, Porto, Portugal; Plant Stress Lab, Biology Department, Faculty of Sciences, University of Porto, Rua Campo Alegre S/n, 4169-007, Porto, Portugal
| | - Cristiano Soares
- GreenUPorto - Centro de Investigação Em Produção Agroalimentar Sustentável, BiologyDepartment, FacultyofSciences, University of Porto, Rua Campo Alegre S/n, 4169-007, Porto, Portugal; Plant Stress Lab, Biology Department, Faculty of Sciences, University of Porto, Rua Campo Alegre S/n, 4169-007, Porto, Portugal.
| | - Fernanda Fidalgo
- GreenUPorto - Centro de Investigação Em Produção Agroalimentar Sustentável, BiologyDepartment, FacultyofSciences, University of Porto, Rua Campo Alegre S/n, 4169-007, Porto, Portugal; Plant Stress Lab, Biology Department, Faculty of Sciences, University of Porto, Rua Campo Alegre S/n, 4169-007, Porto, Portugal
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