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Ndikuryayo F, Gong XY, Yang WC. Advances in Understanding the Toxicity of 4-Hydroxyphenylpyruvate Dioxygenase-Inhibiting Herbicides. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:17762-17770. [PMID: 39093601 DOI: 10.1021/acs.jafc.4c04624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
4-Hydroxyphenylpyruvate dioxygenase inhibiting herbicides (HIHs) represent a recent class (HRAC group 27) of herbicides that offer many advantages, such as broad-spectrum activity, crop selectivity, and low resistance rates. However, emerging studies have highlighted the potential toxicity of HIHs in the environment. This review aims to provide a comprehensive summary of the toxicity of HIHs toward nontarget organisms, including plants, microorganisms, animals, and humans. Furthermore, the present work discusses the ecological roles of these organisms in the environment and their significance in agriculture. By shedding light on the toxicity of HIHs, this study seeks to raise awareness among end users, including environmentalists, researchers, and farmers, regarding the potential ecological implications of these herbicides. Hopefully, this knowledge can contribute to informed decision-making and sustainable practices in green agriculture and environmental management.
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Affiliation(s)
- Ferdinand Ndikuryayo
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
- Centre Universitaire de Recherche et de Pédagogie Appliquées aux Sciences, Laboratoire de Nutrition-Phytochimie, d'Ecologie et Environnement Appliqués, Institut de Pédagogie Appliquée, Université du Burundi, BP 2700 Bujumbura, Burundi
| | - Xue-Yan Gong
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
| | - Wen-Chao Yang
- State Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Center for R&D of Fine Chemicals of Guizhou University, Guiyang 550025, P. R. China
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Solomonova E, Shoman N, Akimov A. Physiological responses of the microalgae Thalassiosira weissflogii to the presence of the herbicide glyphosate in the medium. FUNCTIONAL PLANT BIOLOGY : FPB 2024; 51:FP23205. [PMID: 38669460 DOI: 10.1071/fp23205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 04/07/2024] [Indexed: 04/28/2024]
Abstract
We evaluated changes in growth, chlorophyll fluorescence and basic physiological and biochemical parameters of the microalgae Thalassiosira weissflogii cells under the influence of the herbicide glyphosate in concentrations 0, 25, 95 and 150μgL-1 . The toxic effect of glyphosate on algae is weakly dependent on the level of cell mineral nutrition. High concentrations of the herbicide do not lead to the death of microalgae but block the process of algae cell division. An increase in the glyphosate concentration in the medium leads to a slowdown or stop of algal growth, a decrease in their final biomass, an increase in the production of reactive oxygen species (ROS), depolarisation of mitochondrial membranes and metabolic activity of algae. Glyphosate inhibits the photosynthetic activity of cells and inhibits the relative rate of electron transport in the photosynthetic apparatus. Glyphosate at the studied concentrations does not affect the size characteristics of cells and the intracellular content of chlorophyll in T. weissflogii . The studied herbicide or products of its decay retain their toxic properties in the environment for at least 9days. This result shows the need for further in-depth studies to assess the physiological response and possible acclimation changes in the functional state of oxygenic phototrophs in response to the herbicide action. The species specificity of microalgae to the effects of glyphosate in natural conditions is potentially dangerous due to a possible change in the species structure of biocoenoses, in particular, a decrease in the contribution of diatoms.
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Affiliation(s)
- Ekaterina Solomonova
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2, Nakhimov Avenue, Sevastopol, Russian Federation
| | - Natalia Shoman
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2, Nakhimov Avenue, Sevastopol, Russian Federation
| | - Arkady Akimov
- A.O. Kovalevsky Institute of Biology of the Southern Seas of RAS, 2, Nakhimov Avenue, Sevastopol, Russian Federation
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Baruah P, Srivastava A, Mishra Y, Chaurasia N. Modulation in growth, oxidative stress, photosynthesis, and morphology reveals higher toxicity of alpha-cypermethrin than chlorpyrifos towards a non-target green alga at high doses. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2024; 106:104376. [PMID: 38278501 DOI: 10.1016/j.etap.2024.104376] [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: 07/04/2023] [Revised: 01/21/2024] [Accepted: 01/22/2024] [Indexed: 01/28/2024]
Abstract
Considering the frequent detection of pesticides in the aquatic environment, the ecotoxicological effects of Chlorpyrifos (CHP), an organophosphate, and alpha-cypermethrin (ACM), a pyrethroid, on freshwater microalgae were compared for the first time in this study. High concentrations of both CHP and ACM significantly suppressed the growth of test microalga Graesiella emersonii (p < 0.05). The 96-h EC50 of CHP and ACM were 54.42 mg L-1 and 29.40 mg L-1, respectively. Sub-inhibitory doses of both pesticides increased ROS formation in a concentration-dependent manner, which was accompanied by changes in antioxidant enzymes activities, lipid peroxidation, and variations in photosynthetic pigment concentration. Furthermore, both pesticides influenced photosystem II performance, oxygen-evolving complex efficiency and, intracellular ATP levels. Scanning electron microscopy analysis revealed that high concentrations of both CHP and ACM caused considerable morphological changes in the microalga. In comparison, CHP was more toxic than ACM at low concentrations, whereas ACM was more toxic at high concentrations.
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Affiliation(s)
- Prithu Baruah
- Environmental Biotechnology laboratory, Department of Biotechnology and Bioinformatics, North-Eastern Hill University, Shillong 793022, Meghalaya, India
| | - Akanksha Srivastava
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Yogesh Mishra
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Neha Chaurasia
- Environmental Biotechnology laboratory, Department of Biotechnology and Bioinformatics, North-Eastern Hill University, Shillong 793022, Meghalaya, India.
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da Luz DS, Guimarães PS, Castro MS, Primel EG, Giroldo D, Martins CDMG. Effects of the Pesticide Carbofuran on Two Species of Chlorophyceae (Desmodesmus communis and Pseudopediastrum boryanum) and Their Pesticide Bioremediation Ability. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2023. [PMID: 38153230 DOI: 10.1002/etc.5818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/31/2023] [Accepted: 12/26/2023] [Indexed: 12/29/2023]
Abstract
Carbofuran is one of the most toxic broad-spectrum pesticides. We evaluated the effects of carbofuran on two species of microalgae, Pseudopediastrum boryanum and Desmodesmus communis, through measurements of cell viability, biomass, chlorophyll content, and the production of reactive oxygen species (ROS). The ability of these algae to remove carbofuran dissolved in the media was also determined. For the evaluations, both microalgae species were exposed to carbofuran (FURADAN 350 SC®) at concentrations of 100, 1000, and 10,000 µg L-1 for 7 days. Algae cell viability and chlorophyll-a concentration were not affected by the presence of carbofuran. Both species grew when exposed to the pesticide; however, the microalgae D. communis grew less than its respective control when exposed to the highest concentration (10,000 µg L-1 of carbofuran), indicating an adverse effect of the pesticide on this species. A significant increase in ROS production was observed in D. communis and P. boryanum when exposed to the highest concentration tested. The microalgae P. boryanum completely removed carbofuran in the media within 2 days, regardless of the concentration, whereas D. communis achieved the same result only after 5 days of exposure. Growth inhibition was observed only until the disappearance of carbofuran from the media. The present study suggests the use of microalgae, mainly P. boryanum, as potential tools for the remediation of environments contaminated by carbofuran because of their resistance to the insecticide and their ability to remove it rapidly from water. Environ Toxicol Chem 2024;00:1-12. © 2023 SETAC.
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Affiliation(s)
- Daniéli Saul da Luz
- Programa de Pós-Graduação em Biologia de Ambientes Aquáticos Continentais, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Pablo Santos Guimarães
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Muryllo Santos Castro
- Programa de Pós-Graduação em Biologia de Ambientes Aquáticos Continentais, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Ednei Giberto Primel
- Escola de Química e Alimentos, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Danilo Giroldo
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Camila de Martinez Gaspar Martins
- Programa de Pós-Graduação em Biologia de Ambientes Aquáticos Continentais, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
- Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
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Kumar JV, Saravanan V, Lee D, Muthukutty B. Sense and Shoot: Unveiling the Electro-/Photocatalytic Potential of 2D White Graphene-Supported Perovskite Strontium Cobaltite from Detection to Remediation of Oxidative Stress Herbicide (Mesotrione). Anal Chem 2023; 95:17776-17789. [PMID: 37997913 DOI: 10.1021/acs.analchem.3c03812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023]
Abstract
In this research, we employed a strategy akin to "Feeding Two Birds with One Stone" aiming for the dual objectives of highly selective electrochemical detection and photocatalytic degradation of the environmentally hazardous herbicide mesotrione (MTN). We achieved this by utilizing hexagonal boron nitride (BN)-supported strontium cobaltite perovskite nanocomposites (SrCoO3/BN). The fabrication of the innovative bifunctional SrCoO3/BN nanocomposites involved a straightforward process of precipitation, followed by an annealing treatment and ultrasonication. The successful formation of these nanocomposites was corroborated through the application of diverse spectroscopic tools. Notably, as-prepared SrCoO3/BN nanocomposites exhibited a remarkable sensing platform for MTN, characterized by a notably low detection limit (11 nm), considerable sensitivity (3.782 μA μM-1 cm-2), and outstanding selectivity, alongside remarkable stability. Concurrently, these SrCoO3/BN nanocomposites demonstrated exceptional visible-light-driven photocatalytic efficacy for MTN degradation (99%) and complete mineralization. Our investigation systematically delved into the influence of operational parameters, including catalyst loading and the involvement of reactive oxidative species, in both the electrocatalytic and photocatalytic reactions. Drawing from these comprehensive studies, we have proposed plausible mechanisms for detecting and degrading MTN. Our findings pave the way for catalyst development, offering a unified solution for detecting and eliminating toxic organic compounds from the environment.
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Affiliation(s)
- Jeyaraj Vinoth Kumar
- Nano Inspired Laboratory, School of Integrated Technology, Yonsei University, Incheon 21983, Republic of Korea
| | - Vadivel Saravanan
- Department of Chemistry, Kalasalingam Academy of Research and Education, Krishnankoil 626 126, Tamilnadu, India
| | - Daeho Lee
- Department of Mechanical Engineering, Gachon University, Seongnam 13120, South Korea
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Ciccia T, Pandard P, Ciffroy P, Urien N, Lafay L, Bado-Nilles A. Sub-lethal toxicity of five disinfection by-products on microalgae determined by flow cytometry - Lines of evidence for adverse outcome pathways. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 266:115582. [PMID: 37862747 DOI: 10.1016/j.ecoenv.2023.115582] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 10/06/2023] [Accepted: 10/11/2023] [Indexed: 10/22/2023]
Abstract
Standardised tests are often used to determine the ecotoxicity of chemicals and focus mainly on one or a few generic endpoints (e.g. mortality, growth), but information on the sub-cellular processes leading to these effects remain usually partial or missing. Flow cytometry (FCM) can be a practical tool to study the physiological responses of individual cells (such as microalgae) exposed to a stress via the use of fluorochromes and their morphology and natural autofluorescence. This work aimed to assess the effects of five chlorine-based disinfection by-products (DBPs) taken individually on growth and sub-cellular endpoints of the green microalgae Raphidocelis subcapitata. These five DBPs, characteristic of a chlorinated effluent, are the following monochloroacetic acid (MCAA), dichloroacetic acid (DCAA), trichloroacetic acid (TCAA), bromochloroacetic acid (BCAA) and 1,1-dichloropropan-2-one (1,1-DCP). Results showed that 1,1-DCP had the strongest effect on growth inhibition (EC50 = 1.8 mg.L-1), followed by MCAA, TCAA, BCAA and DCAA (EC50 of 10.1, 15.7, 27.3 and 64.5 mg.L-1 respectively). Neutral lipid content, reactive oxygen species (ROS) formation, red autofluorescence, green autofluorescence, size and intracellular complexity were significantly affected by the exposure to the five DBPs. Only mitochondrial membrane potential did not show any variation. Important cellular damages (>10%) were observed for only two of the chemicals (BCAA and 1,1-DCP) and were probably due to ROS formation. The most sensitive and informative sub-lethal parameter studied was metabolic activity (esterase activity), for which three types of response were observed. Combining all this information, an adverse outcome pathways framework was proposed to explain the effect of the targeted chemicals on R. subcapitata. Based on these results, both FCM sub-cellular analysis and conventional endpoint of algal toxicity were found to be complementary approaches.
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Affiliation(s)
- Théo Ciccia
- Laboratoire National d'Hydraulique et Environnement (LNHE), Division Recherche et Développement, Electricité de France (EDF), 6 Quai de Watier, 78401 Chatou Cedex 01, France.
| | - Pascal Pandard
- Institut National de l'Environnement Industriel et des Risques (INERIS), Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France
| | - Philippe Ciffroy
- Laboratoire National d'Hydraulique et Environnement (LNHE), Division Recherche et Développement, Electricité de France (EDF), 6 Quai de Watier, 78401 Chatou Cedex 01, France
| | - Nastassia Urien
- Laboratoire National d'Hydraulique et Environnement (LNHE), Division Recherche et Développement, Electricité de France (EDF), 6 Quai de Watier, 78401 Chatou Cedex 01, France
| | - Léo Lafay
- Laboratoire National d'Hydraulique et Environnement (LNHE), Division Recherche et Développement, Electricité de France (EDF), 6 Quai de Watier, 78401 Chatou Cedex 01, France
| | - Anne Bado-Nilles
- Institut National de l'Environnement Industriel et des Risques (INERIS), Parc Technologique Alata, BP 2, 60550 Verneuil-en-Halatte, France
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Ghaffar I, Hussain A, Hasan A, Deepanraj B. Microalgal-induced remediation of wastewaters loaded with organic and inorganic pollutants: An overview. CHEMOSPHERE 2023; 320:137921. [PMID: 36682632 DOI: 10.1016/j.chemosphere.2023.137921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/26/2022] [Accepted: 01/18/2023] [Indexed: 06/17/2023]
Abstract
The recent surge in industrialization has intensified the accumulation of various types of organic and inorganic pollutants due to the illegal dumping of partially and/or untreated wastewater effluents in the environment. The pollutants emitted by several industries pose serious risk to the environment, animals and human beings. Management and diminution of these hazardous organic pollutants have become an incipient research interest. Traditional physiochemical methods are energy intensive and produce secondary pollutants. So, bioremediation via microalgae has appeared to be an eco-friendly and sustainable technique to curb the adverse effects of organic and inorganic contaminants because microalgae can degrade complex organic compounds and convert them into simpler and non-toxic substances without the release of secondary pollutants. Even some of the organic pollutants can be exploited by microalgae as a source of carbon in mixotrophic cultivation. Literature survey has revealed that use of the latest modification techniques for microalgae such as immobilization (on alginate, carrageena and agar), pigment-extraction, and pretreatment (with acids) have enhaced their bioremedial potential. Moreover, microalgal components i.e., biopolymers and extracellular polymeric substances (EPS) can potentially be exploited in the biosorption of pollutants. Though bioremediation of wastewaters by microalgae is quite well-studied realm but some aspects like structural and functional responses of microalgae toward pollutant derivatives/by-products (formed during biodegradation), use of genetic engineering to improve the tolerance of microalgae against higher concentrations of polluatans, and harvesting cost reduction, and monitoring of parameters at large-scale still need more focus. This review discusses the accumulation of different types of pollutants into the environment through various sources and the mechanisms used by microalgae to degrade commonly occurring organic and inorganic pollutants.
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Affiliation(s)
- Imania Ghaffar
- Applied and Environmental Microbiology Laboratory, Department of Wildlife and Ecology, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Ali Hussain
- Applied and Environmental Microbiology Laboratory, Institute of Zoology, University of the Punjab, Lahore, Pakistan.
| | - Ali Hasan
- Applied and Environmental Microbiology Laboratory, Institute of Zoology, University of the Punjab, Lahore, Pakistan
| | - Balakrishnan Deepanraj
- Department of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, Al Khobar, Saudi Arabia.
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8
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Solovchenko A. Seeing good and bad: Optical sensing of microalgal culture condition. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.103071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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Jiao Q, Mu Y, Deng J, Yao X, Zhao X, Liu X, Li X, Jiang X, Zhang F. Direct toxicity of the herbicide florasulam against Chlorella vulgaris: An integrated physiological and metabolomic analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 246:114135. [PMID: 36201917 DOI: 10.1016/j.ecoenv.2022.114135] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/09/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
Herbicides are the agents of choice for use in weed control; however, they can enter the aquatic environment, with potentially serious consequences for non-target organisms. Despite the possible deleterious effects, little information is available regarding the ecotoxicity of the herbicide florasulam toward aquatic organisms. Accordingly, in this study, we investigated the toxic effect of florasulam on the freshwater microalga Chlorella vulgaris and sought to identify the underlying mechanisms. For this, we employed a growth inhibition toxicity test, and then assessed the changes in physiological and metabolomic parameters, including photosynthetic pigment content, antioxidant system, intracellular structure and complexity, and metabolite levels. The results showed that treatment with florasulam for 96 h at the concentration of 2 mg/L, 2.84 mg/L, and 6 mg/L in medium significantly inhibited algal growth and photosynthetic pigment content. Moreover, the levels of reactive oxygen species were also increased, resulting in oxidative damage and the upregulation of the activities of several antioxidant enzymes. Transmission electron microscopic and flow cytometric analysis further demonstrated that exposure to florasulam (6 mg/L) for 96 h disrupted the cell structure of C. vulgaris, characterized by the loss of cell membrane integrity and alterations in cell morphology. Changes in amino acid metabolism, carbohydrate metabolism, and the antioxidant system were also observed and contributed to the suppressive effect of florasulam on the growth of this microalga. Our findings regarding the potential risks of florasulam in aquatic ecosystems provide a reference for the safe application of this herbicide in the environment.
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Affiliation(s)
- Qin Jiao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Yuelin Mu
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Jiahui Deng
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xiangfeng Yao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xiaoyan Zhao
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xiang Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xiangdong Li
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Xingyin Jiang
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China
| | - Fengwen Zhang
- College of Plant Protection, Shandong Agricultural University, Tai'an, Shandong 271018, PR China.
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Lopez-Herguedas N, González-Gaya B, Castelblanco-Boyacá N, Rico A, Etxebarria N, Olivares M, Prieto A, Zuloaga O. Characterization of the contamination fingerprint of wastewater treatment plant effluents in the Henares River Basin (central Spain) based on target and suspect screening analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:151262. [PMID: 34715212 DOI: 10.1016/j.scitotenv.2021.151262] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 10/03/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
The interest in contaminants of emerging concern (CECs) has increased lately due to their continued emission and potential ecotoxicological hazards. Wastewater treatment plants (WWTPs) are generally not capable of eliminating them and are considered the main pathway for CECs to the aquatic environment. The number of CECs in WWTPs effluents is often so large that complementary approaches to the conventional target analysis need to be implemented. Within this context, multitarget quantitative analysis (162 compounds) and a suspect screening (>40,000 suspects) approaches were applied to characterize the CEC fingerprint in effluents of five WWTPs in the Henares River basin (central Spain) during two sampling campaigns (summer and autumn). The results indicated that 76% of the compounds quantified corresponded to pharmaceuticals, 21% to pesticides and 3% to industrial chemicals. Apart from the 82 compounds quantified, suspect screening increased the list to 297 annotated compounds. Significant differences in the CEC fingerprint were observed between summer and autumn campaigns and between the WWTPs, being those serving the city of Alcalá de Henares the ones with the largest number of compounds and concentrations. Finally, a risk prioritization approach was applied based on risk quotients (RQs) for algae, invertebrates, and fish. Azithromycin, diuron, chlortoluron, clarithromycin, sertraline and sulfamethoxazole were identified as having the largest risks to algae. As for invertebrates, the compounds having the largest RQs were carbendazim, fenoxycarb and eprosartan, and for fish acetaminophen, DEET, carbendazim, caffeine, fluconazole, and azithromycin. The two WWTPs showing higher calculated Risk Indexes had tertiary treatments, which points towards the need of increasing the removal efficiency in urban WWTPs. Furthermore, considering the complex mixtures emitted into the environment and the low dilution capacity of Mediterranean rivers, we recommend the development of detailed monitoring plans and stricter regulations to control the chemical burden created to freshwater ecosystems.
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Affiliation(s)
- N Lopez-Herguedas
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Plentzia, Basque Country, Spain.
| | - B González-Gaya
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Plentzia, Basque Country, Spain.
| | - N Castelblanco-Boyacá
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain
| | - A Rico
- IMDEA Water Institute, Science and Technology Campus of the University of Alcalá, Alcalá de Henares, Madrid, Spain; Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, Paterna, Valencia, Spain
| | - N Etxebarria
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Plentzia, Basque Country, Spain
| | - M Olivares
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Plentzia, Basque Country, Spain
| | - A Prieto
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Plentzia, Basque Country, Spain
| | - O Zuloaga
- Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Basque Country, Spain; Research Centre for Experimental Marine Biology and Biotechnology (PIE), University of the Basque Country (UPV/EHU), Plentzia, Basque Country, Spain
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11
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Surribas A, Barthelmebs L, Noguer T. Monoclonal Antibody-Based Immunosensor for the Electrochemical Detection of Chlortoluron Herbicide in Groundwaters. BIOSENSORS 2021; 11:513. [PMID: 34940271 PMCID: PMC8699797 DOI: 10.3390/bios11120513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/02/2021] [Accepted: 12/09/2021] [Indexed: 11/17/2022]
Abstract
Chlortoluron (3-(3-chloro-p-tolyl)-1,1-dimethyl urea) is an herbicide widely used in substitution to isoproturon to control grass weed in wheat and barley crops. Chlortoluron has been detected in groundwaters for more than 20 years; and dramatic increases in concentrations are observed after intense rain outbreaks. In this context; we developed an immunosensor for the determination of chlortoluron based on competitive binding of specific monoclonal antibodies on chlortoluron and immobilized biotinylated chlortoluron; followed by electrochemical detection on screen-printed carbon electrodes. The optimized immunosensor exhibited a logarithmic response in the range 0.01-10 µg·L-1; with a calculated detection limit (LOD) of 22.4 ng·L-1; which is below the maximum levels allowed by the legislation (0.1 µg·L-1). The immunosensor was used for the determination of chlortoluron in natural groundwaters, showing the absence of matrix effects.
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Affiliation(s)
- Anaïs Surribas
- Biosensors Analysis Environment Laboratory, Université de Perpignan Via Domitia, F-66860 Perpignan, France;
- Biodiversity and Microbial Biotechnologies Laboratory, USR 3579 Sorbonne Universités (UPMC), F-66650 Banyuls-sur-Mer, France
| | - Lise Barthelmebs
- Biosensors Analysis Environment Laboratory, Université de Perpignan Via Domitia, F-66860 Perpignan, France;
- Biodiversity and Microbial Biotechnologies Laboratory, USR 3579 Sorbonne Universités (UPMC), F-66650 Banyuls-sur-Mer, France
| | - Thierry Noguer
- Biosensors Analysis Environment Laboratory, Université de Perpignan Via Domitia, F-66860 Perpignan, France;
- Biodiversity and Microbial Biotechnologies Laboratory, USR 3579 Sorbonne Universités (UPMC), F-66650 Banyuls-sur-Mer, France
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12
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Wang B, Zheng S, Huang Z, Hu Y, Zhu K. Fabrication of H 2O 2 slow-releasing composites for simultaneous Microcystis mitigation and phosphate immobilization. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 798:149164. [PMID: 34325137 DOI: 10.1016/j.scitotenv.2021.149164] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 07/05/2021] [Accepted: 07/16/2021] [Indexed: 06/13/2023]
Abstract
Hydrogen peroxide (H2O2) is a widely accepted algicide in controlling cyanobacterial blooms. However, this method includes two disadvantages: 1) a low H2O2 concentration (<5 mg L-1) is required; 2) H2O2-induced cell lysis causes phosphorus (P) contamination. To overcome the drawbacks, a H2O2 slow-releasing composite (HSRC) based on calcium peroxide (CaO2) was fabricated to substitute liquid H2O2. According to the results, a higher CaO2 dose increased H2O2 yield and releasing rate. H2O2 yield of 160 mg L-1 CaO2 in HSRC reached 32.9 mg L-1 and its releasing rate was 0.407 h-1. In addition, a higher temperature decreased H2O2 yield and increased H2O2-releasing rate. Besides, HSRC endowed with a remarkable ability to immobilize P. Higher CaO2 dose, pH value, and temperature increased the rate of P immobilization. The highest rate was 0.185 h-1, which occurred with 160 mg L-1 CaO2 in HSRC at 25 °C and pH 8.0. Toxicity assays showed that HSRC exerted sustaining oxidative stress on Microcystis aeruginosa. Accumulation of intracellular reactive oxygen species resulted in the disruption of enzymatic systems and inactivation of photosystem. Tracking the variations of cell growth and H2O2 concentration during HSRC treatments, it suggested that the lethal effect on Microcystis aeruginosa was achieved with a super-low H2O2 concentration (<0.3 mg L-1). In addition, cell lysis did not cause a sudden rise in P concentration due to the P immobilization by HSRC. Therefore, HSRC successfully offsets the drawbacks of liquid H2O2 in mitigating cyanobacterial blooms. It may be a novel and promising algicide that not only kills cyanobacteria but also reduces eutrophication momentarily.
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Affiliation(s)
- Binliang Wang
- School of Life Science, Shaoxing University, Shaoxing 312000, PR China
| | - Shuaibo Zheng
- School of Life Science, Shaoxing University, Shaoxing 312000, PR China
| | - Zongken Huang
- School of Life Science, Shaoxing University, Shaoxing 312000, PR China
| | - Yiwei Hu
- School of Life Science, Shaoxing University, Shaoxing 312000, PR China.
| | - Kongxian Zhu
- Changjiang River Scientific Research Institute, Wuhan 430000, PR China
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13
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Fernández C, Asselborn V, Parodi ER. Toxic effects of chlorpyrifos, cypermethrin and glyphosate on the non-target organism Selenastrum capricornutum (Chlorophyta). AN ACAD BRAS CIENC 2021; 93:e20200233. [PMID: 34378759 DOI: 10.1590/0001-3765202120200233] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 08/30/2020] [Indexed: 01/11/2023] Open
Abstract
The toxic effects of the insecticides chlorpyrifos and cypermethrin, and the herbicide glyphosate on the growth, biovolume and ultrastructure of the green microalgae Selenastrum capricornutum were evaluated. Concentrations between 9.37-150 mg L-1 of chlorpyrifos, 3.12-100 mg L-1 of cypermethrin and 4.7-60 mg L-1 of glyphosate were assayed along with a control culture. The assayed concentrations were prepared using commercial formulations. After 48 h all tested concentrations of the three pesticides reduced significantly the population growth. The 96 h effective concentration 50 (EC50) was 14.45 mg L-1 for chlorpyrifos, 12.37 mg L-1 for cypermethrin and 15.60 mg L-1 for glyphosate. Cells exposed to the three pesticides showed an increase in the cellular size related to the increase in pesticide concentration and exposure time. The most significant damages observed on the ultrastructure of cells exposed to the three pesticides included thylakoids and mitochondria disruption, formation of electrodense bodies, accumulation of lipids and increase in the size and number of starch granules. The present study demonstrates that the effects of pesticides also extend to non-target organisms having significant ecological implications.
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Affiliation(s)
- Carolina Fernández
- Instituto Argentino de Oceanografía, Universidad Nacional del Sur (UNS) - CONICET, Camino Carrindanga 7.5 Km, B8000FWB Bahía Blanca, Argentina
- Centro de Emprendedorismo y Desarrollo Territorial Sostenible (CEDETS), Universidad Provincial del Sudoeste (UPSO) - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC), Ciudad de Cali 320, B8003FTH Bahía Blanca, Argentina
| | - Viviana Asselborn
- Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, B8000FTN, Bahía Blanca, Argentina
| | - Elisa R Parodi
- Instituto Argentino de Oceanografía, Universidad Nacional del Sur (UNS) - CONICET, Camino Carrindanga 7.5 Km, B8000FWB Bahía Blanca, Argentina
- Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, B8000FTN, Bahía Blanca, Argentina
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14
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Bringer A, Thomas H, Dubillot E, Le Floch S, Receveur J, Cachot J, Tran D. Subchronic exposure to high-density polyethylene microplastics alone or in combination with chlortoluron significantly affected valve activity and daily growth of the Pacific oyster, Crassostrea gigas. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 237:105880. [PMID: 34126365 DOI: 10.1016/j.aquatox.2021.105880] [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: 03/02/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 06/12/2023]
Abstract
Nowadays, pesticides and microplastics (MPs) are commonly found in coastal waters worldwide. Due to their widespread use, their persistence and toxicity, they may induce adverse effects on physiology and behaviour of marine organisms such as the Pacific oyster (Crassostrea gigas). This study explored the growth and valve activity of juvenile oysters exposed for 24 days to two frequently detected pollutants in the Pertuis Charentais (South West, France): a herbicide (chlortoluron, 85 µg.L-1) and high-density polyethylene microparticles (HDPE 20-25 µm, 112 MP.mL-1) alone or in combination (cocktail condition; 97 µg.L-1 of chlortoluron + 108 MP. mL-1). The valve activity of juvenile oysters recorded by using a High Frequency and Non-Invasive valvometer (HFNI) was characterized by three parameters: the number of valve micro-closures (VMC), the Valve Opening Amplitude (VOA), and the Valve Opening Duration (VOD). Additionally, daily shell growth and the oyster daily rhythm were assessed. The exposure to MPs of oysters led to a significant increase of VMC and a decrease of VOD and shell growth. The exposure to chlortoluron showed a significant increase of VOA and a decrease of VMC. In combination with MPs, chlortoluron still increased VOA and decreased VMC but also reduced the shell growth. Chronobiological analysis did not reveal any effects on the daily rhythm of both contaminants. This work highlighted significant effects of high environmental concentrations of MPs and Chlortoluron on the behaviour and growth of the Pacific oyster.
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Affiliation(s)
- Arno Bringer
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France.
| | - Hélène Thomas
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - Emmanuel Dubillot
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | | | | | - Jérôme Cachot
- Université de Bordeaux, CNRS, EPOC, EPHE, UMR 5805, F-33600 Pessac, France
| | - Damien Tran
- Université de Bordeaux, CNRS, EPOC, EPHE, UMR 5805, F-33600 Pessac, France
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15
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Bringer A, Thomas H, Prunier G, Dubillot E, Clérandeau C, Pageaud M, Cachot J. Toxicity and risk assessment of six widely used pesticides on embryo-larval development of the Pacific oyster, Crassostrea gigas. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 779:146343. [PMID: 33744579 DOI: 10.1016/j.scitotenv.2021.146343] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/04/2021] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
This study aims to assess the toxic effects and the potential risk of widely used agricultural pesticides on the development (malformations and developmental arrest), growth and swimming activity of oyster D-larvae (Crassostrea gigas). Freshly fertilized oyster embryos were exposed for 24 h at 24 °C to different concentrations (0, 0.01, 0.1, 1 and 10 μg.L-1) of six different pesticides: Glyphosate and its commercial solution (Roundup), Isoproturon, Nicosulfuron, Chlortoluron and Boscalid. The six pesticides tested induced a significant increase in larval malformations and developmental arrests. All pesticides except Glyphosate and Isoproturon affected larval growth. Roundup, Nicosulfuron, Chlortoluron and Boscalid also affected the swimming behaviour of the D-larvae, with a significant decrease recorded in their maximum swimming speed. Comparison of the LOEC (Lowest-Observed-Effect Concentration) of each compound led to the following toxicity classification: Boscalid > Chlortoluron = Nicosulfuron > Glyphosate > Roundup > Isoproturon, with respectively LOEC of 0.0028; 0.015; 0.017; 0.11; 0.3 and 0.78 μg.L-1. By comparison of the maximum concentrations in the Pertuis Charentais (South West, France) and LOEC of each pesticide, the following risk scale was obtained: Chlortoluron > Boscalid > Glyphosate > Roundup > Nicosulfuron > Isoproturon. Our results revealed that Chlortoluron, Boscalid and to a lesser extent Glyphosate represent a potential threat to early life stages of oyster living in the Pertuis Charentais marine area.
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Affiliation(s)
- Arno Bringer
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - Hélène Thomas
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - Grégoire Prunier
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | - Emmanuel Dubillot
- Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042 La Rochelle Cedex 01, France
| | | | - Marius Pageaud
- Qualyse, 5 allée de l'Océan, F-17000 La Rochelle, France
| | - Jérôme Cachot
- Université Bordeaux, CNRS, EPOC, EPHE, UMR 5805, F-33600 Pessac, France.
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Šojić Merkulov D, Lazarević M, Djordjevic A, Náfrádi M, Alapi T, Putnik P, Rakočević Z, Novaković M, Miljević B, Bognár S, Abramović B. Potential of TiO 2 with Various Au Nanoparticles for Catalyzing Mesotrione Removal from Wastewaters under Sunlight. NANOMATERIALS 2020; 10:nano10081591. [PMID: 32823509 PMCID: PMC7466515 DOI: 10.3390/nano10081591] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 11/25/2022]
Abstract
Nowadays, great focus is given to the contamination of surface and groundwater because of the extensive usage of pesticides in agriculture. The improvements of commercial catalyst TiO2 activity using different Au nanoparticles were investigated for mesotrione photocatalytic degradation under simulated sunlight. The selected system was 2.43 × 10−3% Au–S–CH2–CH2–OH/TiO2 (0.5 g/L) that was studied by transmission electron microscopy and ultraviolet-visible (UV-Vis) spectroscopy. It was found that TiO2 particles size was ~20 nm and ~50 nm, respectively. The Au nanoparticles were below 10 nm and were well distributed within the framework of TiO2. For 2.43 × 10−3% Au–S–CH2–CH2–OH/TiO2 (0.5 g/L), band gap energy was 2.45 eV. In comparison to the pure TiO2, addition of Au nanoparticles generally enhanced photocatalytic removal of mesotrione. By examining the degree of mineralization, it was found that 2.43 × 10−3% Au–S–CH2–CH2–OH/TiO2 (0.5 g/L) system was the most efficient for the removal of the mesotrione and intermediates. The effect of tert-butanol, NaF and ethylenediaminetetraacetic acid disodium salt on the transformation rate suggested that the relative contribution of various reactive species changed in following order: h+ > ●OHads > ●OHbulk. Finally, several intermediates that were formed during the photocatalytic treatment of mesotrione were identified.
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Affiliation(s)
- Daniela Šojić Merkulov
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Marina Lazarević
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Aleksandar Djordjevic
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Máté Náfrádi
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Tünde Alapi
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Predrag Putnik
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia
| | - Zlatko Rakočević
- Institute for Nuclear Sciences "Vinča", University of Belgrade, Mihajla Petrovića Alasa 12-14, 11351 Vinča, Belgrade, Serbia
| | - Mirjana Novaković
- Institute for Nuclear Sciences "Vinča", University of Belgrade, Mihajla Petrovića Alasa 12-14, 11351 Vinča, Belgrade, Serbia
| | - Bojan Miljević
- Faculty of Technology, University of Novi Sad, Bulevar cara Lazara 1, 21000 Novi Sad, Serbia
| | - Szabolcs Bognár
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
| | - Biljana Abramović
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovića 3, 21000 Novi Sad, Serbia
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17
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Marella TK, López-Pacheco IY, Parra-Saldívar R, Dixit S, Tiwari A. Wealth from waste: Diatoms as tools for phycoremediation of wastewater and for obtaining value from the biomass. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 724:137960. [PMID: 32408422 DOI: 10.1016/j.scitotenv.2020.137960] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 03/13/2020] [Accepted: 03/13/2020] [Indexed: 06/11/2023]
Abstract
Diatoms are a type of microalgae with diverse capabilities which make them useful for multiple applications. The abundance of diatoms in water bodies facilitates the removal of pollutants from wastewater originating from different industries, such as agriculture and other anthropogenic sources. The unique photosynthetic, cellular and metabolic characteristics of diatoms allows them to utilize pollutants like nitrate, iron, phosphate, molybdenum, silica, and heavy metals, such as copper, cadmium, chromium, lead, etc., which make diatoms a good option for wastewater treatment. In addition, the biomass produced by diatoms growth on wastewaters has diverse applications and can, therefore, be valuable. This review focusses on the unique capabilities of diatoms for wastewater remediation and the capture of carbon dioxide, concomitant with the generation of valuable products. Diatom biorefinery can be a sustainable solution to wastewater management, and the biomass obtained from treatment can be turned into biofuels, biofertilizers, nutritional supplements for animal production, and used for pharmaceutical applications containing bioactive compounds like EPA, DHA and pigments such as fucoxanthin.
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Affiliation(s)
- Thomas Kiran Marella
- International Crop Research Institute for Semi-arid Tropics (ICRISAT), Patancheru 502 324, Telangana State, India
| | - Itzel Y López-Pacheco
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, CP 64849 Monterrey, N.L., Mexico
| | - Roberto Parra-Saldívar
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, CP 64849 Monterrey, N.L., Mexico
| | - Sreenath Dixit
- International Crop Research Institute for Semi-arid Tropics (ICRISAT), Patancheru 502 324, Telangana State, India
| | - Archana Tiwari
- Diatom Research Laboratory, Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh, 201 313, India.
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18
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Zhang F, Yao X, Sun S, Wang L, Liu W, Jiang X, Wang J. Effects of mesotrione on oxidative stress, subcellular structure, and membrane integrity in Chlorella vulgaris. CHEMOSPHERE 2020; 247:125668. [PMID: 31931307 DOI: 10.1016/j.chemosphere.2019.125668] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 12/13/2019] [Accepted: 12/13/2019] [Indexed: 06/10/2023]
Abstract
Mesotrione is a selective herbicide used to prevent weed attack of corn. It is extensively used, and hence, is being increasingly detected in aquatic ecosystems and may exert adverse effects on aquatic organisms. To evaluate the effects of mesotrione on photosynthesis-related gene expression, antioxidant enzyme activities, subcellular structure, and membrane integrity in algal cells, a comprehensive study was conducted using the green alga, Chlorella vulgaris. Exposure to 4-50 mg/L mesotrione resulted in a progressive inhibition of cell growth, with a 96-h median inhibition concentration (96 h- ErC50) value of 18.8 mg/L. Further, 18 and 37.5 mg/L mesotrione affected the algal photosynthetic capacity by decreasing the cell pigment content and reducing transcript abundance of photosynthesis-related genes. Mesotrione induced oxidative stress, as confirmed by increased cellular levels of reactive oxygen species (ROS) and malondialdehyde (MDA), and altered antioxidant enzyme activities. It also damaged the algal cellular structure, observed as plasmolysis, blurred organelle shape, and disruption of the chloroplast structure. Flow cytometry analysis revealed that mesotrione exposure led to uneven cell growth and interior irregularities in the algal cell. The apparent propidium iodide (PI) influx also confirmed that the herbicide induced damage of the cell membrane integrity. This study will facilitate the understanding of the physiological and morphological changes induced by mesotrione in C. vulgaris cells, and provide basic information for understanding the biological mechanisms of mesotrione-induced algal toxicity.
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Affiliation(s)
- Fengwen Zhang
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China; Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Xiangfeng Yao
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China; Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Shiang Sun
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China; Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Lipeng Wang
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China; Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Weitang Liu
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China; Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China
| | - Xingyin Jiang
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China; Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China.
| | - Jinxin Wang
- College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China; Key Laboratory of Pesticide Toxicology and Application Technique, College of Plant Protection, Shandong Agricultural University, Tai'an, 271018, PR China.
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19
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Deng Y, Beadham I, Ren HY, Ji MM, Ruan WQ. A study into the species sensitivity of green algae towards imidazolium-based ionic liquids using flow cytometry. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 194:110392. [PMID: 32171965 DOI: 10.1016/j.ecoenv.2020.110392] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/14/2020] [Accepted: 02/25/2020] [Indexed: 06/10/2023]
Abstract
The sensitivity of individual organisms towards toxic agents is an important indicator of environmental pollution. However, organism-specific quantification of sensitivity towards pollutants remains a challenge. In this study, we determined the sensitivity of Chlorella vulgaris (C. vulgaris) and Scenedesmus quadricauda (S. quadricauda) towards three ionic liquids (ILs), 1-alkyl-3-methyl-imidazolium chlorides [Cnmim][Cl] (n = 4,6,8). We kept all external parameters constant to identify the biotic parameters responsible for discrepancies in species sensitivity, and used flow cytometry to determine four conventional endpoints to characterise cell viability and cell vitality. Our results demonstrate that after exposure to the ILs, cell proliferation was inhibited in both species. At the same time, the cell size, complexity and membrane permeability of both algae also increased. However, while Chl a synthesis by S. quadricauda was inhibited, that of C. vulgaris was enhanced. S. quadricauda has evolved a metabolic defense that can counteract the decreased esterase activity that has been shown to occur in the presence of ILs. While it is likely that S. quadricauda was less sensitive than C. vulgaris to the ILs because of this metabolic defense, this alga may also exhibit better membrane resistance towards ILs.
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Affiliation(s)
- Yun Deng
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, 214122, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, 214122, China
| | - Ian Beadham
- School of Pharmacy and Chemistry, Kingston University, Kingston upon Thames, KT1 2EE, UK
| | - Hong-Yan Ren
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, 214122, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, 214122, China
| | - Meng-Meng Ji
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, 214122, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, 214122, China
| | - Wen-Quan Ruan
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, 214122, China; Jiangsu Key Laboratory of Anaerobic Biotechnology, Wuxi, 214122, China.
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Zhang Y, Calabrese EJ, Zhang J, Gao D, Qin M, Lin Z. A trigger mechanism of herbicides to phytoplankton blooms: From the standpoint of hormesis involving cytochrome b 559, reactive oxygen species and nitric oxide. WATER RESEARCH 2020; 173:115584. [PMID: 32062224 DOI: 10.1016/j.watres.2020.115584] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 01/28/2020] [Accepted: 02/01/2020] [Indexed: 06/10/2023]
Abstract
The cause of phytoplankton blooms has been extensively discussed and largely attributed to favorable external conditions such as nitrogen/phosphorus resources, pH and temperature. Here from the standpoint of hormesis response, we propose that phytoplankton blooms are initiated by stimulatory effects of low concentrations of herbicides as environmental contaminants spread over estuaries and lakes. The experimental results revealed general stimulations by herbicides on Microcystis aeruginosa and Selenastrum capricornutum, with the maximum stimulation in the 30-60% range, depending on the agent and experiment. In parallel with enhancing stimulation, the ratio of HP (high-potential) form to LP (low-potential) form of cytochrome b559 (RHL) was observed decreasing, while intracellular reactive oxygen species (ROS) were observed increasing. We propose that the ROS originated from the thermodynamic transformation of cytochrome b559, enhancing the stimulatory response. Furthermore, the results also proved that thermodynamic states of cytochrome b559 could be modulated by nitric oxide, thus affecting cellular equilibrium of oxidative stress (OS) and correspondingly causing the inhibitory effect of higher concentrations of herbicides on phytoplankton. This suggests that hormesis substantially derives from equilibrium shifting of OS. Moreover, it is reasonable to infer that phytoplankton blooms would be motivated by herbicides or other environmental pollutants. This study provides a new thought into global phytoplankton blooms from a contaminant perspective.
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Affiliation(s)
- Yueheng Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Edward J Calabrese
- Department of Public Health, Environmental Health Sciences, Morrill I, N344, University of Massachusetts, Amherst, MA, 01003, USA
| | - Junyi Zhang
- Wuxi Environmental Monitoring Centre, Jiangsu, China
| | - Dan Gao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Mengnan Qin
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Zhifen Lin
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China; Shanghai Key Lab of Chemical Assessment and Sustainability, Shanghai, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, China.
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Xu K, Racine F, He Z, Juneau P. Impacts of hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor (mesotrione) on photosynthetic processes in Chlamydomonas reinhardtii. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 244:295-303. [PMID: 30343230 DOI: 10.1016/j.envpol.2018.09.121] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/27/2018] [Accepted: 09/24/2018] [Indexed: 06/08/2023]
Abstract
Mesotrione, an herbicide increasingly found in aquatic systems due to its increased application frequency in corn fields, is an inhibitor of the p-hydroxyphenylpyruvate dioxygenase (HPPD), a key enzyme for plastoquinone-9, α-tocopherol and indirectly for carotenoid biosynthesis. The direct effect of mesotrione on plastoquinone-9 and α-tocopherol synthesis and their degradation rates are well documented, but few information exists on its action on photosynthetic processes under various light intensities. We therefore investigated the photosynthetic activity, energy dissipation processes, pigment composition and α-tocopherol content when Chlamydomonas reinhardtii were exposed to mesotrione for 24 h under low light condition and then the impacts of HL treatment (75 min) were also investigated. Under low light growth conditions, mesotrione did not induce PSII photoinhihition, while substantially decreased Car:Chl-a ratio, maximal energy-dependant quenching and state 1 to state 2 transition. Under high light conditions (HL), PSII activity was highly decreased in presence of mesotrione, and the non-photochemical energy dissipation processes were drastically affected in these conditions compared to the HL treatment alone. Mesotrinone also prevent the complete recovery of PSII damage caused by HL. Light condition seems therefore to be a non-negligible factor modulating mesotrione toxicity, and this has an obvious importance in agricultural waterbodies where phytoplankton is subjected to fluctuating light intensities.
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Affiliation(s)
- Kui Xu
- School of Environmental Science and Engineering, Environmental Microbiomics Research Center, Sun Yat-sen University, Guangzhou, 510006, China
| | - Francis Racine
- Department of Biological Sciences, GRIL-TOXEN, Ecotoxicology of Aquatic Microorganisms Laboratory, Université du Québec à Montréal, Succ. Centre-Ville, Montréal, Québec, Canada
| | - Zhili He
- School of Environmental Science and Engineering, Environmental Microbiomics Research Center, Sun Yat-sen University, Guangzhou, 510006, China
| | - Philippe Juneau
- Department of Biological Sciences, GRIL-TOXEN, Ecotoxicology of Aquatic Microorganisms Laboratory, Université du Québec à Montréal, Succ. Centre-Ville, Montréal, Québec, Canada.
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Determination and dissipation of mesotrione and its metabolites in rice using UPLC and triple-quadrupole tandem mass spectrometry. Food Chem 2017; 229:260-267. [DOI: 10.1016/j.foodchem.2017.02.079] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 09/13/2016] [Accepted: 02/16/2017] [Indexed: 11/19/2022]
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Cheng L, He Y, Tian Y, Liu B, Zhang Y, Zhou Q, Wu Z. Comparative biotoxicity of N-Phenyl-1-naphthylamine and N-Phenyl-2-naphthylamine on cyanobacteria Microcystis aeruginosa. CHEMOSPHERE 2017; 176:183-191. [PMID: 28260658 DOI: 10.1016/j.chemosphere.2017.02.110] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Revised: 02/04/2017] [Accepted: 02/21/2017] [Indexed: 06/06/2023]
Abstract
N-Phenyl-1-naphthylamine (P1NA) and N-Phenyl-2-naphthylamine (P2NA) are both widely used as antioxidant and plant secondary metabolites. In this study, growth, esterase, photosynthetic activity and cell membrane integrity were used as biomarkers to compare biotoxicity of P1NA and P2NA on Microcystis aeruginosa. According to the results, a dose-response relationship was observed only between P1NA concentrations and growth inhibition. The EC50 (48 h) of P1NA calculated from growth inhibition was 16.62 μM, while that of P2NA was not detected. When the esterase and photosynthetic activity were applied to evaluate the biotoxicity, it was found that a concentration of 20 μM P1NA, P2NA caused reduction of esterase activity and Fv/Fm of M. aeruginosa to 22.2 and 3.3%, 97.5 and 92.1%, respectively, after 48 h exposure. The percentage of membrane-damaged cells was increased as P1NA exposure concentration increased, but that was not detected when exposure to P2NA. The difference substituted position in the molecular structure of P1NA and P2NA leads to different toxicological properties and only P1NA was found highly toxic to M. aeruginosa. The toxicity is due to that only P1NA can be biotransformed to 1,4-naphthoquinone, which could induce overproduction of intracellular ROS as well as result in oxidative damage and growth inhibition of test organism.
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Affiliation(s)
- Long Cheng
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan He
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yun Tian
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Biyun Liu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Yongyuan Zhang
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Qiaohong Zhou
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Zhenbin Wu
- State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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Dumas E, Giraudo M, Goujon E, Halma M, Knhili E, Stauffert M, Batisson I, Besse-Hoggan P, Bohatier J, Bouchard P, Celle-Jeanton H, Costa Gomes M, Delbac F, Forano C, Goupil P, Guix N, Husson P, Ledoigt G, Mallet C, Mousty C, Prévot V, Richard C, Sarraute S. Fate and ecotoxicological impact of new generation herbicides from the triketone family: An overview to assess the environmental risks. JOURNAL OF HAZARDOUS MATERIALS 2017; 325:136-156. [PMID: 27930998 DOI: 10.1016/j.jhazmat.2016.11.059] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 10/21/2016] [Accepted: 11/19/2016] [Indexed: 06/06/2023]
Abstract
Triketones, derived chemically from a natural phytotoxin (leptospermone), are a good example of allelochemicals as lead molecules for the development of new herbicides. Targeting a new and key enzyme involved in carotenoid biosynthesis, these latest-generation herbicides (sulcotrione, mesotrione and tembotrione) were designed to be eco-friendly and commercialized fifteen-twenty years ago. The mechanisms controlling their fate in different ecological niches as well as their toxicity and impact on different organisms or ecosystems are still under investigation. This review combines an overview of the results published in the literature on β-triketones and more specifically, on the commercially-available herbicides and includes new results obtained in our interdisciplinary study aiming to understand all the processes involved (i) in their transfer from the soil to the connected aquatic compartments, (ii) in their transformation by photochemical and biological mechanisms but also to evaluate (iii) the impacts of the parent molecules and their transformation products on various target and non-target organisms (aquatic microorganisms, plants, soil microbial communities). Analysis of all the data on the fate and impact of these molecules, used pure, as formulation or in cocktails, give an overall guide for the assessment of their environmental risks.
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Affiliation(s)
- E Dumas
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - M Giraudo
- Clermont Université, Université Blaise Pascal-Université d'Auvergne, Laboratoire Microorganismes: Génome et Environnement, BP 10448, 63000 Clermont Ferrand, France; CNRS, UMR 6023, LMGE, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - E Goujon
- Clermont Université, Université Blaise Pascal, Physique et Physiologie Intégratives de l'Arbre Fruitier et Forestier, 63000 Clermont-Ferrand, France; INRA, UMR PIAF 547, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - M Halma
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - E Knhili
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - M Stauffert
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France; Clermont Université, Université Blaise Pascal-Université d'Auvergne, Laboratoire Microorganismes: Génome et Environnement, BP 10448, 63000 Clermont Ferrand, France; CNRS, UMR 6023, LMGE, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - I Batisson
- Clermont Université, Université Blaise Pascal-Université d'Auvergne, Laboratoire Microorganismes: Génome et Environnement, BP 10448, 63000 Clermont Ferrand, France; CNRS, UMR 6023, LMGE, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - P Besse-Hoggan
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France.
| | - J Bohatier
- Clermont Université, Université Blaise Pascal-Université d'Auvergne, Laboratoire Microorganismes: Génome et Environnement, BP 10448, 63000 Clermont Ferrand, France; CNRS, UMR 6023, LMGE, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - P Bouchard
- Clermont Université, Université Blaise Pascal-Université d'Auvergne, Laboratoire Microorganismes: Génome et Environnement, BP 10448, 63000 Clermont Ferrand, France; CNRS, UMR 6023, LMGE, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - H Celle-Jeanton
- Clermont Université, Université Blaise Pascal, Laboratoire Magmas et Volcans, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6524, LMV, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - M Costa Gomes
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - F Delbac
- Clermont Université, Université Blaise Pascal-Université d'Auvergne, Laboratoire Microorganismes: Génome et Environnement, BP 10448, 63000 Clermont Ferrand, France; CNRS, UMR 6023, LMGE, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - C Forano
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - P Goupil
- Clermont Université, Université Blaise Pascal, Physique et Physiologie Intégratives de l'Arbre Fruitier et Forestier, 63000 Clermont-Ferrand, France; INRA, UMR PIAF 547, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - N Guix
- INRA, UMR 1095 Génétique, Diversité et Ecophysiologie des Céréales, 5 chemin de Beaulieu, 63039 Clermont-Ferrand, France; VetAgro Sup, 89 avenue de l'Europe, BP 35, 63370 Lempdes, France; UMR Génétique Diversité et Ecophysiologie des Céréales, INRA-UBP, UMR 1095, 63000 Clermont-Ferrand, France
| | - P Husson
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - G Ledoigt
- Clermont Université, Université Blaise Pascal, Physique et Physiologie Intégratives de l'Arbre Fruitier et Forestier, 63000 Clermont-Ferrand, France; INRA, UMR PIAF 547, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - C Mallet
- Clermont Université, Université Blaise Pascal-Université d'Auvergne, Laboratoire Microorganismes: Génome et Environnement, BP 10448, 63000 Clermont Ferrand, France; CNRS, UMR 6023, LMGE, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - C Mousty
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - V Prévot
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - C Richard
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France
| | - S Sarraute
- Clermont Université, Université Blaise Pascal, Institut de Chimie de Clermont-Ferrand, BP 10448, 63000 Clermont-Ferrand, France; CNRS, UMR 6296, ICCF, TSA 60026, CS 60026, 63178 Aubière Cedex, France
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Carles L, Rossi F, Joly M, Besse-Hoggan P, Batisson I, Artigas J. Biotransformation of herbicides by aquatic microbial communities associated to submerged leaves. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:3664-3674. [PMID: 27885582 DOI: 10.1007/s11356-016-8035-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 11/01/2016] [Indexed: 06/06/2023]
Abstract
Leaf microbial communities possess a large panel of enzymes permitting the breakdown of leaf polymers as well as the transformation of organic xenobiotic compounds present in stream waters. This study aims to assess the potential of leaf microbial communities, exhibiting different exposure histories to pesticides (upstream versus downstream), to biotransform three maize herbicides (mesotrione, S-metolachlor, and nicosulfuron) in single and cocktail molecule exposures. The results showed a high dissipation of nicosulfuron (sulfonylurea herbicide) (from 29.1 ± 10.8% to 66 ± 16.2%, day 40) in both single and cocktail exposures, respectively, but not of mesotrione and S-metolachlor. The formation of nicosulfuron metabolites such as ASDM (2-(aminosulfonyl)-N,N-dimethyl-3-pyridinecarboxamide) and ADMP (2-amino-4,6-dimethoxypyrimidine) and the weak sorption (<0.4%) on the leaf matrix confirmed the transformation of this molecule by leaf microorganisms. In addition, the downstream communities showed a greater ability to transform nicosulfuron than the upstream communities suggesting that the exposure history to pesticides is an important parameter and can enhance the biotransformation potential of leaf microorganisms. After 40-day single exposure to nicosulfuron, the downstream communities were also those experiencing the greatest shifts in fungal and bacterial community diversity suggesting a potential adaptation of microorganisms to this herbicide. Our study emphasizes the importance of leaf microbial communities for herbicide biotransformation in polluted stream ecosystems where fungi could play a crucial role.
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Affiliation(s)
- Louis Carles
- CNRS, UMR 6023, Laboratoire Microorganismes: Génome et Environnement (LMGE), F-63178, Aubière, France.
- Clermont Université, LMGE, Université Blaise Pascal-Université d'Auvergne, BP 10448, F-63000, Clermont-Ferrand, France.
- CNRS, UMR 6296, Institut de Chimie de Clermont-Ferrand (ICCF), BP 80026, F-63178, Aubière, France.
- Clermont Université, Université Blaise Pascal, ICCF, F-63000, Clermont-Ferrand, France.
| | - Florent Rossi
- CNRS, UMR 6023, Laboratoire Microorganismes: Génome et Environnement (LMGE), F-63178, Aubière, France
- Clermont Université, LMGE, Université Blaise Pascal-Université d'Auvergne, BP 10448, F-63000, Clermont-Ferrand, France
| | - Muriel Joly
- CNRS, UMR 6023, Laboratoire Microorganismes: Génome et Environnement (LMGE), F-63178, Aubière, France
- Clermont Université, LMGE, Université Blaise Pascal-Université d'Auvergne, BP 10448, F-63000, Clermont-Ferrand, France
| | - Pascale Besse-Hoggan
- CNRS, UMR 6296, Institut de Chimie de Clermont-Ferrand (ICCF), BP 80026, F-63178, Aubière, France
- Clermont Université, Université Blaise Pascal, ICCF, F-63000, Clermont-Ferrand, France
| | - Isabelle Batisson
- CNRS, UMR 6023, Laboratoire Microorganismes: Génome et Environnement (LMGE), F-63178, Aubière, France
- Clermont Université, LMGE, Université Blaise Pascal-Université d'Auvergne, BP 10448, F-63000, Clermont-Ferrand, France
| | - Joan Artigas
- CNRS, UMR 6023, Laboratoire Microorganismes: Génome et Environnement (LMGE), F-63178, Aubière, France
- Clermont Université, LMGE, Université Blaise Pascal-Université d'Auvergne, BP 10448, F-63000, Clermont-Ferrand, France
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Nagai T, Taya K, Yoda I. Comparative toxicity of 20 herbicides to 5 periphytic algae and the relationship with mode of action. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2016; 35:368-375. [PMID: 26174500 DOI: 10.1002/etc.3150] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 02/24/2015] [Accepted: 07/05/2015] [Indexed: 06/04/2023]
Abstract
The authors used 5 species of periphytic algae to conduct toxicity assays of 20 herbicides. The 5 tested species represent riverine primary producers most likely to be affected by herbicides. A fluorescence microplate toxicity assay was used as an efficient and economical high-throughput assay. Toxicity characteristics were analyzed, focusing on their relationship to herbicide mode of action. The relative differences between 50% and 10% effect concentrations depended on herbicide mode of action, rather than tested species. Moreover, a clear relationship between sensitive species and herbicide mode of action was also observed. Green alga was most sensitive to herbicides of 2 mode of action groups: inhibitors of protoporphyrinogen oxidase and very long-chain fatty acid synthesis. Diatoms were most sensitive to herbicides of 1 mode of action group: 4-hydroxyphenyl-pyruvate-dioxygenase inhibitors. Cyanobacterium was most sensitive to herbicides of 1 mode of action group: inhibitors of acetolactate synthase. The species sensitivity distribution based on obtained data was also analyzed. The slopes of the species sensitivity distribution significantly differed among modes of action, suggesting that difference in species sensitivity is specific to the mode of action. In particular, differences in species sensitivity were markedly large for inhibitors of acetolactate synthase, protoporphyrinogen oxidase, and very long-chain fatty acid synthesis. The results clearly showed that a single algal species cannot represent the sensitivity of an algal assemblage. Therefore, multispecies algal toxicity data are essential for substances with specific modes of action.
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Affiliation(s)
- Takashi Nagai
- National Institute for Agro-Environmental Sciences, Tsukuba, Ibaraki, Japan
| | - Kiyoshi Taya
- National Institute for Agro-Environmental Sciences, Tsukuba, Ibaraki, Japan
| | - Ikuko Yoda
- National Institute for Agro-Environmental Sciences, Tsukuba, Ibaraki, Japan
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Asselborn V, Fernández C, Zalocar Y, Parodi ER. Effects of chlorpyrifos on the growth and ultrastructure of green algae, Ankistrodesmus gracilis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2015; 120:334-341. [PMID: 26099464 DOI: 10.1016/j.ecoenv.2015.06.015] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Revised: 06/08/2015] [Accepted: 06/09/2015] [Indexed: 06/04/2023]
Abstract
The effect of the organophosphorus insecticide chlorpyrifos on the growth, biovolume, and ultrastructure of the green microalga Ankistrodesmus gracilis was evaluated. Concentrations of 9.37, 18.75, 37.5, 75 and 150mgL(-1) of chlorpyrifos were assayed along with a control culture. At the end of the bioassay the ultrastructure of algal cells from control culture and from cultures exposed to 37.5 and 150mgL(-1) was observed under transmission (TEM) and scanning electron microscopy (SEM). After 24 and 48h, treatments with 75 and 150mgL(-1) inhibited the growth of A. gracilis; whereas after 72 and 96h, all the treatments except at 9.37mgL(-1) significantly affected the algae growth. The effective concentration 50 (EC50) after 96h was 22.44mgL(-1) of chlorpyrifos. After the exposure to the insecticide, an increase in the biovolume was observed, with a larger increase in cells exposed to 75 and 150mgL(-1). Radical changes were observed in the ultrastructure of cells exposed to chlorpyrifos. The insecticide affected the cell shape and the distribution of the crests in the wall. At 37.5mgL(-1) electodense bodies were observed along with an increase in the size and number of starch granules. At 150mgL(-1) such bodies occupied almost the whole cytoplasm together with lipids and remains of thylakoids. Autospores formation occurred normally at 37.5mgL(-1) while at 150mgL(-1) karyokinesis occurred, but cell-separation-phase was inhibited. The present study demonstrates that the exposure of phytoplankton to the insecticide chlorpyrifos leads to effects observed at both cellular and population level.
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Affiliation(s)
- Viviana Asselborn
- Laboratorio de Ecología Acuática, Depto. Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, B8000ICL Bahía Blanca, Argentina
| | - Carolina Fernández
- CONICET-BB-IADO (Instituto Argentino de Oceanografía), CC 804, B8000FWB Bahía Blanca, Argentina
| | - Yolanda Zalocar
- CONICET-CECOAL (Centro de Ecología Aplicada del Litoral), CC 291, 3400 Corrientes, Argentina
| | - Elisa R Parodi
- Laboratorio de Ecología Acuática, Depto. Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, San Juan 670, B8000ICL Bahía Blanca, Argentina; CONICET-BB-IADO (Instituto Argentino de Oceanografía), CC 804, B8000FWB Bahía Blanca, Argentina.
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Wood RJ, Mitrovic SM, Kefford BJ. Determining the relative sensitivity of benthic diatoms to atrazine using rapid toxicity testing: a novel method. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 485-486:421-427. [PMID: 24742551 DOI: 10.1016/j.scitotenv.2014.03.115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 03/24/2014] [Accepted: 03/25/2014] [Indexed: 06/03/2023]
Abstract
Herbicides pose a potential threat to aquatic ecosystems, especially to phototrophic organisms such as benthic diatoms. Benthic diatoms may be a valuable indicator of the toxic impacts of herbicides in aquatic systems. However, this requires information on the herbicide sensitivity of a wide range of freshwater benthic diatom taxa. Unfortunately this information is only available for a limited number of species as current methods of developing new algae toxicity tests on individual taxa are lengthy and costly. To address this issue, we developed a new rapid toxicity test method to test natural benthic communities, from which the relative herbicide sensitivity of many individual taxa can be derived. This involved the collection of natural benthic communities from rocks in situ, which were placed directly into laboratory toxicity tests. Sensitivity data for several diatom genera in a 48 hour exposure toxicity test were produced, without the need for cultures or multiple site visits. After exposure to the highest treatment of atrazine (500 μg L(-1)) there were significant declines of healthy cells in the most sensitive genera: Gomphonema declined by 74%, Amphora by 62%, Cymbella by 54% and Ulnaria by 34% compared to control levels. In contrast, the genera, Eunotia, Achnanthidium and Navicula, had no statistically significant decline in cell health. This method can identify the diatom taxa most at risk of herbicide toxicity within the natural benthic diatom community. The rapid toxicity testing method presented is a simple and effective method to obtain sensitivity data for multiple taxa within a natural benthic diatom community in a relatively short period of time.
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Affiliation(s)
- Rebecca J Wood
- Centre for Environmental Sustainability, School of the Environment, University of Technology, PO Box 123, Broadway 2007, New South Wales, Australia.
| | - Simon M Mitrovic
- Centre for Environmental Sustainability, School of the Environment, University of Technology, PO Box 123, Broadway 2007, New South Wales, Australia
| | - Ben J Kefford
- Institute for Applied Ecology, University of Canberra, ACT 2601, Australia
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Sustainable Wastewater Management: Is it Possible to Regulate Micropollution in the Future by Learning from the Past? A Policy Analysis. SUSTAINABILITY 2014. [DOI: 10.3390/su6041992] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Li Y, Zhang J, Xiong X, Luo K, Guo J, Shen M, Wang J, Song Z. Determination of picogram quantities of chlortoluron in soil samples by luminol-chitosan chemiluminescence system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:7204-7210. [PMID: 24566970 DOI: 10.1007/s11356-014-2646-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 02/10/2014] [Indexed: 06/03/2023]
Abstract
Based on the enhancing effect of chitosan (CS) on luminol-dissolved oxygen chemiluminescence (CL) reaction, a flow injection (FI) luminol-CS CL system was established. It was found that the increase of CL intensity was proportional to the concentrations of CS ranging from 0.7 to 10.0 μmol l(-1). In the presence of chlortoluron (CTU), the CL intensity of luminol-CS system could be obviously inhibited and the decrements of CL intensity were linearly proportional to the logarithm of CTU concentrations ranging from 0.01 to 70.0 ng ml(-1), giving the limit of detection 3.0 pg ml(-1) (3σ). At a flow rate of 2.0 ml min(-1), the whole process including sampling and washing could be accomplished within 36 s, offering a sample throughput of 100 h(-1). The proposed FI-CL method was successfully applied to the determination of CTU in soil samples with recoveries ranging from 95.0 % to 105.3 % and the relative standard deviations (RSDs) of less than 4.0 %.
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Affiliation(s)
- Yajuan Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, 710069, Xi'an, China
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Ni Y, Lai J, Wan J, Chen L. Photosynthetic responses and accumulation of mesotrione in two freshwater algae. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2014; 16:2288-2294. [PMID: 25059419 DOI: 10.1039/c4em00254g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Mesotrione is a herbicide used for killing annual grasses and broad-leaved weeds in maize. A recent investigation has shown that mesotrione has been detected as an organic contaminant in aquatic environments and may have a negative impact on aquatic organisms. To evaluate the eco-toxicity of mesotrione to algae, experiments focusing on photosynthetic responses and mesotrione accumulation in Microcystis sp. and Scenedesmus quadricauda were carried out. Both algae treated with mesotrione at 0.05-10 mg L(-1) for 7 days reduced the photosynthetic capacity. The fluorescence of chlorophyll a, the maximal PSII activity (Fv/Fm), and the parameters (Ik, α and ETRmax) of rapid light curves (RLCs) in both algae were decreased under mesotrione exposure. The 96 h EC50 values for mesotrione on S. quadricauda and Microcystis sp. were 4.41 and 6.19 mg L(-1), respectively. The latter shows more tolerance to mesotrione. Mesotrione was shown to be readily accumulated by both species. Such uptake of mesotrione led to the rapid removal of mesotrione from the medium. Overall, this study represents the initial comprehensive analyses of Microcystis sp. and S. quadricauda in adaptation to the mesotrione contaminated aquatic ecosystems.
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Affiliation(s)
- Yan Ni
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, Institute of Environmental and Chemical Engineering, Nanchang University, Jiangxi, China.
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Affiliation(s)
- Edoardo Puglisi
- Istituto di Microbiologia, Facoltà di Agraria, Università Cattolica del Sacro Cuore, Via Emilia Parmense 84 Italy
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