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Lehutso RF, Wesley-Smith J, Thwala M. Aquatic Toxicity Effects and Risk Assessment of 'Form Specific' Product-Released Engineered Nanomaterials. Int J Mol Sci 2021; 22:12468. [PMID: 34830350 PMCID: PMC8621863 DOI: 10.3390/ijms222212468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 10/30/2021] [Accepted: 11/03/2021] [Indexed: 11/16/2022] Open
Abstract
The study investigated the toxicity effects of 'form specific' engineered nanomaterials (ENMs) and ions released from nano-enabled products (NEPs), namely sunscreens, sanitisers, body creams and socks on Pseudokirchneriella subcapitata, Spirodela polyrhiza, and Daphnia magna. Additionally, risk estimation emanating from the exposures was undertaken. The ENMs and the ions released from the products both contributed to the effects to varying extents, with neither being a uniform principal toxicity agent across the exposures; however, the effects were either synergistic or antagonistic. D. magna and S. polyrhiza were the most sensitive and least sensitive test organisms, respectively. The most toxic effects were from ENMs and ions released from sanitisers and sunscreens, whereas body creams and sock counterparts caused negligible effects. The internalisation of the ENMs from the sunscreens could not be established; only adsorption on the biota was evident. It was established that ENMs and ions released from products pose no imminent risk to ecosystems; instead, small to significant adverse effects are expected in the worst-case exposure scenario. The study demonstrates that while ENMs from products may not be considered to pose an imminent risk, increasing nanotechnology commercialization may increase their environmental exposure and risk potential; therefore, priority exposure cases need to be examined.
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Affiliation(s)
- Raisibe Florence Lehutso
- Water Centre, Council for Scientific and Industrial Research, Pretoria 0001, South Africa;
- Department of Chemical Sciences, University of Johannesburg, Johannesburg 2028, South Africa
| | - James Wesley-Smith
- Electron Microscope Unit, Sefako Makgatho Health Sciences University, Pretoria 0001, South Africa;
| | - Melusi Thwala
- Water Centre, Council for Scientific and Industrial Research, Pretoria 0001, South Africa;
- Centre for Environmental Management, University of the Free State, Bloemfontein 9031, South Africa
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Vanhoutte I, De Tender C, Demeyere K, Abdallah MF, Ommeslag S, Vermeir P, Saeger SD, Debode J, Meyer E, Croubels S, Audenaert K, De Gelder L. Bacterial Enrichment Cultures Biotransform the Mycotoxin Deoxynivalenol into a Novel Metabolite Toxic to Plant and Porcine Cells. Toxins (Basel) 2021; 13:toxins13080552. [PMID: 34437423 PMCID: PMC8402469 DOI: 10.3390/toxins13080552] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/05/2021] [Accepted: 08/06/2021] [Indexed: 12/13/2022] Open
Abstract
The mycotoxin deoxynivalenol (DON), produced in wheat, barley and maize by Fusarium graminearum and Fusarium culmorum, is threatening the health of humans and animals. With its worldwide high incidence in food and feed, mitigation strategies are needed to detoxify DON, maintaining the nutritional value and palatability of decontaminated commodities. A promising technique is biological degradation, where microorganisms are used to biotransform mycotoxins into less toxic metabolites. In this study, bacterial enrichment cultures were screened for their DON detoxification potential, where DON and its potential derivatives were monitored. The residual phytotoxicity was determined through a bioassay using the aquatic plant Lemna minor L. Two bacterial enrichment cultures were found to biotransform DON into a still highly toxic metabolite for plants. Furthermore, a cytotoxic effect was observed on the cellular viability of intestinal porcine epithelial cells. Through liquid chromatography high-resolution mass spectrometry analysis, an unknown compound was detected, and tentatively characterized with a molecular weight of 30.0 Da (i.e., CH2O) higher than DON. Metabarcoding of the subsequently enriched bacterial communities revealed a shift towards the genera Sphingopyxis, Pseudoxanthomonas, Ochrobactrum and Pseudarthrobacter. This work describes the discovery of a novel bacterial DON-derived metabolite, toxic to plant and porcine cells.
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Affiliation(s)
- Ilse Vanhoutte
- Laboratory of Environmental Biotechnology, Department of Applied Biosciences, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium;
| | - Caroline De Tender
- Plant Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), 9820 Merelbeke, Belgium; (C.D.T.); (S.O.); (J.D.)
- Computer Science and Statistics, Department of Applied Mathematics, Faculty of Sciences, Ghent University, 9000 Ghent, Belgium
| | - Kristel Demeyere
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium; (K.D.); (E.M.); (S.C.)
| | - Mohamed F. Abdallah
- Centre of Excellence in Mycotoxicology and Public Health, Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium; (M.F.A.); (S.D.S.)
| | - Sarah Ommeslag
- Plant Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), 9820 Merelbeke, Belgium; (C.D.T.); (S.O.); (J.D.)
| | - Pieter Vermeir
- Laboratory of Chemical Analysis (LCA), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium;
| | - Sarah De Saeger
- Centre of Excellence in Mycotoxicology and Public Health, Department of Bioanalysis, Faculty of Pharmaceutical Sciences, Ghent University, 9000 Ghent, Belgium; (M.F.A.); (S.D.S.)
| | - Jane Debode
- Plant Sciences Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), 9820 Merelbeke, Belgium; (C.D.T.); (S.O.); (J.D.)
| | - Evelyne Meyer
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium; (K.D.); (E.M.); (S.C.)
| | - Siska Croubels
- Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, 9820 Merelbeke, Belgium; (K.D.); (E.M.); (S.C.)
| | - Kris Audenaert
- Laboratory of Applied Mycology and Phenomics, Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium;
| | - Leen De Gelder
- Laboratory of Environmental Biotechnology, Department of Applied Biosciences, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium;
- Correspondence: ; Tel.: +32-9-243-24-75
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Chia MA, Ameh I, Agee JT, Otogo RA, Shaba AF, Bashir H, Umar F, Yisa AG, Uyovbisere EE, Sha'aba RI. Effects of the antimalarial lumefantrine on Lemna minor, Raphidocelis subcapitata and Chlorella vulgaris. Environ Toxicol Pharmacol 2021; 85:103635. [PMID: 33716093 DOI: 10.1016/j.etap.2021.103635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 02/10/2021] [Accepted: 03/09/2021] [Indexed: 06/12/2023]
Abstract
Lumefantrine is used to treat uncomplicated malaria caused by pure or mixed Plasmodium falciparum infections and as a prophylactic against recrudescence following artemether therapy. However, the pharmaceutical is released into the aquatic environment from industrial effluents, hospital discharges, and human excretion. This study assessed the effects of lumefantrine on the growth and physiological responses of the microalgae Chlorella vulgaris and Raphidocelis subcapitata (formerly known as Selenastrum capricornutum and Pseudokirchneriella subcapitata) and the aquatic macrophyte Lemna minor. The microalgae and macrophyte were exposed to 200-10000 μg l-1 and 16-10000 μg l-1 lumefantrine, respectively. Lumefantrine had a variable effect on the growth of the aquatic plants investigated. There was a decline in the growth of R. subcapitata and L. minor post-exposure to the drug. Contrarily, there was stimulation in the growth of Chlorella vulgaris. All experimental plants had a significant increase in lipid peroxidation, which was accompanied by an increase in malondialdehyde content. Peroxidase activity of L. minor increased only at low lumefantrine concentrations, while the opposite occurred at higher levels of the drug. Incubation in lumefantrine contaminated medium significantly up-regulated the activity of R. subcapitata cultures. Glutathione S-transferase of L. minor exposed to lumefantrine treatments had substantially higher activities than the controls. Our findings suggest lumefantrine could have adverse but variable effects on the growth and physiology of the studied aquatic plants.
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Affiliation(s)
| | - Ilu Ameh
- Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology, Ahmadu Bello University, Zaria, Nigeria; Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
| | - Jerry Tersoo Agee
- Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology, Ahmadu Bello University, Zaria, Nigeria; Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria
| | | | | | - Hadiza Bashir
- Department of Botany, Ahmadu Bello University, Zaria, Nigeria
| | - Fatima Umar
- Department of Biology, Ahmadu Bello University, Zaria, Nigeria
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Younus M, Hasan MM, Ali S, Saddq B, Sarwar G, Ullah MI, Maqsood A, Ahmar S, Mora-Poblete F, Hassan F, Chen JT, Noureldeen A, Darwish H. Extracts of Euphorbia nivulia Buch.-Ham. showed both phytotoxic and insecticidal capacities against Lemna minor L. and Oxycarenus hyalinipennis Costa. PLoS One 2021; 16:e0250118. [PMID: 33930032 PMCID: PMC8087071 DOI: 10.1371/journal.pone.0250118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Accepted: 03/30/2021] [Indexed: 12/02/2022] Open
Abstract
Many phytochemicals can affect the growth and development of plants and insects which can be used as biological control agents. In this study, different concentrations of crude, hexane, chloroform, butanol, and aqueous extracts of Euphorbia nivulia Buch.-Ham., an endemic plant of the Cholistan desert in South Punjab of Pakistan, were analysed for their chemical constituents. Their various concentrations were also tested for their phytotoxic and insecticidal potential against duckweed, Lemna minor L., and the dusky cotton bug, Oxycarenus hyalinipennis Costa. various polyphenols, i.e., quercetin, gallic acid, caffeic acid, syringic acid, coumaric acid, ferulic acid, and cinnamic acid were detected in different concentrations with different solvents during the phytochemical screening of E. nivulia. In the phytotoxicity test, except for 100 μg/mL of the butanol extract gave 4.5% growth regulation, no phytotoxic lethality could be found at 10 and 100 μg/mL of all the extracts. The highest concentration, 1000 μg/mL, of the chloroform, crude, and butanol extracts showed 100, 63.1, and 27.1% of growth inhibition in duckweed, respectively. In the insecticidal bioassay, the highest O. hyalinipennis mortalities (87 and 75%) were recorded at 15% concentration of the chloroform and butanol extracts of E. nivulia. In contrast, the lower concentrations of the E. nivulia extracts caused the lower mortalities. Altogether, these findings revealed that E. nivulia chloroform extracts showed significant phytotoxicity while all the extracts showed insecticidal potential. This potential can be, further, refined to be developed for bio-control agents.
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Affiliation(s)
- Muhammad Younus
- Faculty of Pharmacy, Department of Pharmacognosy, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
- Faculty of Pharmacy & Pharmaceutical Sciences, Department of Pharmacognosy, University of Karachi, Karachi, Pakistan
| | - Muhammad Mohtasheemul Hasan
- Faculty of Pharmacy & Pharmaceutical Sciences, Department of Pharmacognosy, University of Karachi, Karachi, Pakistan
| | - Sajjad Ali
- Department of Entomology, UCA & ES, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Bushra Saddq
- Department of Entomology, UCA & ES, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Gulam Sarwar
- Faculty of Sciences, Department of Botany, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Muhammad Irfan Ullah
- Department of Entomology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Ambreen Maqsood
- Department of Plant Pathology, The Islamia University of Bahawalpur, Bahawalpur, Pakistan
| | - Sunny Ahmar
- Institute of Biological Sciences, University of Talca, Talca, Chile
| | | | - Farazia Hassan
- Department of Biotechonolgy and Bioinformatics, Virtual university of Pakistan, Bahawalpur, Pakistan
| | - Jen-Tsung Chen
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung, Taiwan
| | - Ahmed Noureldeen
- Department of Biology, College of Sciences, Taif University, Taif, Saudi Arabia
| | - Hadeer Darwish
- Department of Biotechnology, College of Sciences, Taif University, Taif, Saudi Arabia
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Yang GL, Huang MJ, Tan AJ, Lv SM. Joint effects of naphthalene and microcystin-LR on physiological responses and toxin bioaccumulation of Landoltia punctata. Aquat Toxicol 2021; 231:105710. [PMID: 33338701 DOI: 10.1016/j.aquatox.2020.105710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 11/22/2020] [Accepted: 11/28/2020] [Indexed: 06/12/2023]
Abstract
The co-contamination of naphthalene (NAP) and microcystin-LR (MC-LR) commonly occurs in eutrophic waters. However, the joint effects of NAP and MC-LR on plants in aquatic environments remain unknown. Landoltia punctata is characterized by high starch yields and high biomass in polluted waters and has been proven to be a bioenergy crop and phytoremediation plant. In this study, L. punctata was cultured in a nutrient medium with environmentally relevant NAP (0.1, 1, 3, 5, and 10 μg/L) and MC-LR (5, 10, 25, 50, and 100 μg/L) to determine individual and joint toxic effects. The effects of NAP and MC-LR on physiological responses of L. punctata, including growth, starch accumulation, and antioxidant responses, were studied. Bioaccumulation of MC-LR in L. punctata, with or without NAP, was also examined. The results showed that growth and chlorophyll-a contents of L. punctata were reduced at high concentrations of MC-LR (≥ 25 μg/L), NAP (≥ 10 μg/L) and their mixture (≥ 10 + 1 μg/L) after exposure for 7 d. Starch accumulation in L. punctata did not decrease when exposed to NAP and MC-LR, and higher starch content of 29.8 % ± 2.7 % DW could be due to the destruction of starch-degrading enzymes. The antioxidant responses of L. punctata were stronger after exposure to MC-LR + NAP than when exposed to a single pollutant, although not enough to avoid oxidative damage. NAP enhanced the bioaccumulation of MC-LR in L. punctata when NAP concentration was higher than 5 μg/L, suggesting that higher potentials of MC-LR phytoremediation with L. punctata may be observed in NAP and MC-LR co-concomitant waters. This study provides theoretical support for the application of duckweed in eutrophic waters containing organic chemical pollutants.
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Affiliation(s)
- Gui-Li Yang
- College of Life Sciences, Guizhou University, Guiyang 550025, China; Key Laboratory of Conservation and Germplasm Innovation of Mountain Plant Resources, Ministry of Education, Guiyang 550025, China.
| | - Meng-Jun Huang
- Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Chongqing University of Arts and Sciences, Chongqing 402160, China
| | - Ai-Juan Tan
- College of Life Sciences, Guizhou University, Guiyang 550025, China; Key Laboratory of Conservation and Germplasm Innovation of Mountain Plant Resources, Ministry of Education, Guiyang 550025, China
| | - Shi-Ming Lv
- College of Animal Science, Guizhou University, Guiyang 50025, China.
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Markovic M, Neale PA, Nidumolu B, Kumar A. Combined toxicity of therapeutic pharmaceuticals to duckweed, Lemna minor. Ecotoxicol Environ Saf 2021; 208:111428. [PMID: 33068976 DOI: 10.1016/j.ecoenv.2020.111428] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2020] [Revised: 09/24/2020] [Accepted: 09/28/2020] [Indexed: 06/11/2023]
Abstract
Pharmaceuticals, which are designed to be biologically active at low concentrations, are found in surface waters, meaning aquatic organisms can be exposed to complex mixtures of pharmaceuticals. In this study, the adverse effects of four pharmaceuticals, 17α-ethynylestradiol (synthetic estrogen), methotrexate (anticancer drug), diclofenac (nonsteroidal anti-inflammatory drug) and fluoxetine (antidepressant), and their binary mixtures at mg/L concentrations were assessed using the 7-day Lemna minor test, with both apical and biochemical markers evaluated. The studied biochemical markers included chlorophyll a, chlorophyll b, carotenoids and oxidative stress enzymes catalase, glutathione-S-transferase and glutathione reductase, with effects compared to solvent controls. The adverse effects on Lemna minor were dose-dependent for frond number, surface area, relative chlorophyll content and activity of glutathione S-transferase for both individual pharmaceuticals and binary mixtures. According to the individual toxicity values, all tested pharmaceuticals can be considered as toxic or harmful to aquatic organisms, with methotrexate considered highly toxic. The most sensitive endpoints for the binary mixtures were photosynthetic pigments and frond surface area, with effects observed in the low mg/L concentration range. The concentration addition model and toxic unit approach gave similar mixture toxicity predictions, with binary mixtures of methotrexate and fluoxetine or methotrexate and 17α-ethynylestradiol exhibiting synergistic effects. In contrast, mixtures of diclofenac with fluoxetine, 17α-ethynylestradiol or methotrexate mostly showed additive effects. While low concentrations of methotrexate are expected in surface water, chronic ecotoxicological data for invertebrates and fish are lacking, but this is required to better assess the environmental risk of methotrexate.
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Affiliation(s)
- Marijana Markovic
- CSIRO Land and Water, Waite Road, Urrbrae, SA 5064, Australia; Soil Science, School of Agriculture Food and Wine, University of Adelaide, PMB 1 Glen Osmond, SA 5064 Australia
| | - Peta A Neale
- Australian Rivers Institute, School of Environment and Science, Griffith University, Southport QLD 4222, Australia
| | - Bhanu Nidumolu
- CSIRO Land and Water, Waite Road, Urrbrae, SA 5064, Australia
| | - Anu Kumar
- CSIRO Land and Water, Waite Road, Urrbrae, SA 5064, Australia.
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Koba-Ucun O, Ölmez Hanci T, Arslan-Alaton I, Arefi-Oskoui S, Khataee A, Kobya M, Orooji Y. Toxicity of Zn-Fe Layered Double Hydroxide to Different Organisms in the Aquatic Environment. Molecules 2021; 26:E395. [PMID: 33451084 PMCID: PMC7828569 DOI: 10.3390/molecules26020395] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 01/02/2021] [Accepted: 01/06/2021] [Indexed: 11/16/2022] Open
Abstract
The application of layered double hydroxide (LDH) nanomaterials as catalysts has attracted great interest due to their unique structural features. It also triggered the need to study their fate and behavior in the aquatic environment. In the present study, Zn-Fe nanolayered double hydroxides (Zn-Fe LDHs) were synthesized using a co-precipitation method and characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and nitrogen adsorption-desorption analyses. The toxicity of the home-made Zn-Fe LDHs catalyst was examined by employing a variety of aquatic organisms from different trophic levels, namely the marine photobacterium Vibrio fischeri, the freshwater microalga Pseudokirchneriella subcapitata, the freshwater crustacean Daphnia magna, and the duckweed Spirodela polyrhiza. From the experimental results, it was evident that the acute toxicity of the catalyst depended on the exposure time and type of selected test organism. Zn-Fe LDHs toxicity was also affected by its physical state in suspension, chemical composition, as well as interaction with the bioassay test medium.
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Affiliation(s)
- Olga Koba-Ucun
- Department of Environmental Engineering, School of Civil Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey; (O.K.-U.); (T.Ö.H.)
| | - Tuğba Ölmez Hanci
- Department of Environmental Engineering, School of Civil Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey; (O.K.-U.); (T.Ö.H.)
| | - Idil Arslan-Alaton
- Department of Environmental Engineering, School of Civil Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey; (O.K.-U.); (T.Ö.H.)
| | - Samira Arefi-Oskoui
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51666-16471, Iran;
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51666-16471, Iran;
- Department of Environmental Engineering, Gebze Technical University, 41400 Kocaeli, Gebze, Turkey;
| | - Mehmet Kobya
- Department of Environmental Engineering, Gebze Technical University, 41400 Kocaeli, Gebze, Turkey;
- Department of Environmental Engineering, Kyrgyz-Turkish Manas University, Bishkek 720038, Kyrgyzstan
| | - Yasin Orooji
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China;
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Ghaffari MA, Chaudhry BA, Uzair M, Imran M, Haneef M, Ashfaq K. Biological and phytochemical investigations of crude extracts of Astragalus creticus. Pak J Pharm Sci 2021; 34:403-409. [PMID: 34275786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study was carried out to isolate the secondary metabolites and to evaluate the antibacterial, antifungal, antioxidant, phytotoxic, anti-leishmanial and α-glucosidase activities of dichloromethane and methanol extracts of whole plant of Astragalus creticus. Preliminary phytochemical screening indicated flavonoids, saponins, tannins and cardiac glycosides in this plant. Phytochemical evaluation of methanol extract resulted in isolation and characterization of Ethyl gallate, 1-triacontanoic acid, quercimeritrin, kaempferol-7-O-β-D-glucopyranose, myricetin, kaempferol, betulinic acid, stigmasterol and Daucosterol. The structures of the compounds were determined by Mass and NMR spectroscopy. The methanol extract exhibited better activity against Staphylococcus aureus (58.75%) while dichloromethane extract was found to be very active against Bacillus subtilis (56.30%).The methanol extract demonstrated highly significant phytotoxic (92.68% at 1000μg/ml) and antioxidant (64.55±0.43%) potential while both extracts identified best inhibition of α-glucosidase enzyme. The plant extracts showed non-significant antifungal and anti-leishmanial activities. To our knowledge, it's a first research study on Astragalus creticus that indicate a great biological and phytochemical potential in it.
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Affiliation(s)
| | - Bashir Ahmad Chaudhry
- Department of Pharmaceutical Chemistry, Bahauddin Zakriya University, Multan, Pakistan
| | - Muhammad Uzair
- Department of Pharmaceutical Chemistry, Bahauddin Zakriya University, Multan, Pakistan
| | - Muhammad Imran
- Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia
| | - Muhammad Haneef
- Faculty of Pharmacy, Benazir Bhutto Shaheed University, Lyari, Karachi, Pakistan
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Upadhyay RK, Edelman M, Mattoo AK. Identification, Phylogeny, and Comparative Expression of the Lipoxygenase Gene Family of the Aquatic Duckweed, Spirodela polyrhiza, during Growth and in Response to Methyl Jasmonate and Salt. Int J Mol Sci 2020; 21:E9527. [PMID: 33333747 PMCID: PMC7765210 DOI: 10.3390/ijms21249527] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 11/16/2022] Open
Abstract
Lipoxygenases (LOXs) (EC 1.13.11.12) catalyze the oxygenation of fatty acids and produce oxylipins, including the plant hormone jasmonic acid (JA) and its methyl ester, methyl jasmonate (MeJA). Little information is available about the LOX gene family in aquatic plants. We identified a novel LOX gene family comprising nine LOX genes in the aquatic plant Spirodela polyrhiza (greater duckweed). The reduced anatomy of S. polyrhiza did not lead to a reduction in LOX family genes. The 13-LOX subfamily, with seven genes, predominates, while the 9-LOX subfamily is reduced to two genes, an opposite trend from known LOX families of other plant species. As the 13-LOX subfamily is associated with the synthesis of JA/MeJA, its predominance in the Spirodela genome raises the possibility of a higher requirement for the hormone in the aquatic plant. JA-/MeJA-based feedback regulation during culture aging as well as the induction of LOX gene family members within 6 h of salt exposure are demonstrated.
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Affiliation(s)
- Rakesh K. Upadhyay
- Sustainable Agricultural Systems Laboratory, United States Department of Agriculture, Agricultural Research Service, Henry A. Wallace Beltsville Agricultural Research Center, Beltsville, MD 20705-2350, USA
| | - Marvin Edelman
- Department of Plant & Environmental Sciences, Weizmann Institute of Science, Rehovot 76100, Israel;
| | - Autar K. Mattoo
- Sustainable Agricultural Systems Laboratory, United States Department of Agriculture, Agricultural Research Service, Henry A. Wallace Beltsville Agricultural Research Center, Beltsville, MD 20705-2350, USA
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10
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Yang L, Chen Y, Shi L, Yu J, Yao J, Sun J, Zhao L, Sun J. Enhanced Cd accumulation by Graphene oxide (GO) under Cd stress in duckweed. Aquat Toxicol 2020; 229:105579. [PMID: 33075615 DOI: 10.1016/j.aquatox.2020.105579] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 07/11/2020] [Accepted: 07/16/2020] [Indexed: 06/11/2023]
Abstract
Effective phytoremediation by aquatic plant such as duckweed could be applied to solve Cd pollution. In the present study, the impact of Graphene oxide (GO) on the accumulation of Cd in duckweed has been studied. The response of duckweed was also investigated, concluding growth, Cd2+ flux, and gene expression response. Results showed that GO promoted the accumulation of Cd in duckweed. After 6 h of Cd enrichment in duckweed, Cd content was about 1.4 times that of the control group at fronds and 1.25 times that of the control group at roots, meanwhile, Cd content in the water system was 0.67 times that of the control group. The Cd2+ influx increased significantly. 4471 genes were up-regulated and 3230 genes were down-regulated significantly as duckweed treated with GO under Cd treatment. Moreover, phagosome pathway was downregulated, some key proteins: Stx7, Rab7 and Tubastatin B (TUBB) were significantly downregulated with GO addition under Cd stress. Scanning electron microscope (SEM) observation showed that GO and Cd were attached on the cell surface of duckweed as white crystal. GO could be applied in phytoremediation by duckweed of Cd in aquatic system.
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Affiliation(s)
- Lin Yang
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China.
| | - Yikai Chen
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China
| | - Leqian Shi
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China
| | - Jie Yu
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China
| | - Jie Yao
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China
| | - Jinge Sun
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China
| | - Ling Zhao
- College of Life Sciences, Department of Plant Biology and Ecology, Nankai University, 300071, Tianjin, China
| | - Jinsheng Sun
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China.
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11
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Alkimin GDD, Santos J, Soares AMVM, Nunes B. Ecotoxicological effects of the azole antifungal agent clotrimazole on the macrophyte species Lemna minor and Lemna gibba. Comp Biochem Physiol C Toxicol Pharmacol 2020; 237:108835. [PMID: 32585366 DOI: 10.1016/j.cbpc.2020.108835] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 06/16/2020] [Accepted: 06/19/2020] [Indexed: 12/11/2022]
Abstract
Pharmaceuticals are a large and diverse group of compounds used to treat, prevent and diagnose disease. Among these, a group that has been recently detected in the aquatic environment is that of the azole compounds, commonly used as antifungals. Clotrimazole (CLO) is a nonbiodegradable persistent azole compound, with broad-spectrum antifungal activity for which virtually no toxicological data are available, especially towards aquatic plants. The few existent data point to a documented interference with cytochrome P450 system of exposed organisms. Therefore, the aim of this paper was to evaluate the ecotoxicological effects of the fungicide CLO on two aquatic macrophyte species, namely, Lemna minor and Lemna gibba. To attain this purpose, an acute assay (96 h) was performed with both species being exposed to CLO, in a concentration range of 0 to 5 μg L-1. The analyzed endpoints were levels of chlorophyll a and b, total, carotenoids, catalase (CAT) and glutathione -s-transferases activities (GSTs). In general, CLO exposure caused some minor alterations in L. minor and L. gibba pigment contents. Antioxidant enzymes exhibited a different pattern in both species, since the highest concentrations of CLO caused an increase on CAT activity, and a decrease on GSTs activity in L. minor, and the opposite in L. gibba, reflected by a decrease on CAT activity and an increase on GSTs activity in all tested concentrations. These results demonstrate that CLO exposure resulted in potential deleterious effects on macrophytes, namely with the involvement of the antioxidant defense mechanisms that were likely deployed to cope with pro-oxidative conditions established by CLO.
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Affiliation(s)
- Gilberto Dias de Alkimin
- Department of Biology, Aveiro University, Campus de Santiago, 3810-193 Aveiro, Portugal; Centre for Environmental and Marine Studies (CESAM), Campus de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal.
| | - João Santos
- Department of Biology, Aveiro University, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Amadeu M V M Soares
- Department of Biology, Aveiro University, Campus de Santiago, 3810-193 Aveiro, Portugal; Centre for Environmental and Marine Studies (CESAM), Campus de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal
| | - Bruno Nunes
- Department of Biology, Aveiro University, Campus de Santiago, 3810-193 Aveiro, Portugal; Centre for Environmental and Marine Studies (CESAM), Campus de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal
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12
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Drzymała J, Kalka J. Ecotoxic interactions between pharmaceuticals in mixtures: Diclofenac and sulfamethoxazole. Chemosphere 2020; 259:127407. [PMID: 32593821 DOI: 10.1016/j.chemosphere.2020.127407] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 06/10/2020] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
The objective of this study was to investigate the impact of two pharmaceuticals, diclofenac and sulfamethoxazole, and their binary mixture on aquatic organisms, marine bacteria Aliivibrio fischeri, crustacean Daphnia magna, and vascular plant Lemna minor. The binary mixture of the drugs showed the highest toxicity towards the model organisms. Diclofenac had an average toxicity which posed a high environmental risk to aquatic organisms, while sulfamethoxazole was characterized by a low toxicity with low environmental risk. The organism most sensitive to diclofenac was A. fischeri (IC50 = 8.72 ± 1.14 mg L-1) and for sulfamethoxazole and the binary mixture, it was L. minor (IC50 = 12.56 ± 4.48 and 4.83 ± 0.43 mg L-1, respectively). The toxicity of the mixture was predicted using the Concentration Addition and Independent Action models, and the results were compared with the experimental data. None of the models suitably predicted the real toxicity of the pharmaceutical mixture. Interactions between the mixture components were confirmed by calculating the mixture toxicity index values which showed that the pharmaceuticals displayed synergistic or partial additive effects which depended on the selected test organism and test duration. When added as a complex matrix to wastewater (at a concentration of 2 mg L-1 each), the pharmaceuticals did not display increased toxicity. This observation confirms that the presence of micro-contaminants in aquatic environments may cause interactions between different compounds, the results of which are difficult to predict and model.
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Affiliation(s)
- J Drzymała
- Silesian University of Technology, The Biotechnology Center, Gliwice, Poland.
| | - J Kalka
- Silesian University of Technology, Environmental Biotechnology Department, Faculty of Energy and Environmental Engineering, Gliwice, Poland
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13
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Varga M, Žurga P, Brusić I, Horvatić J, Moslavac M. Growth inhibition and recovery patterns of common duckweed Lemna minor L. after repeated exposure to isoproturon. Ecotoxicology 2020; 29:1538-1551. [PMID: 32797394 DOI: 10.1007/s10646-020-02262-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/30/2020] [Indexed: 06/11/2023]
Abstract
Aquatic non-targeted organisms are more likely to be exposed to herbicides in multiple pulse events then long continuous exposure. The potential of an organism to recover between exposures has an important role in the overall effects of the toxicant. Common duckweeds show high potential for recovery after a single exposure to isoproturon. To evaluate the growth patterns and recovery potential between multiple exposures, L. minor plants were exposed to isoproturon in three repetitive 7-day treatment cycles in three time-variable exposure scenarios with equivalent time-weighted average concentrations. The growth was significantly inhibited during each exposure phase with significant cumulative effects in every subsequent treatment cycle resulting in a cumulative decrease in biomass production. However, inhibitory effects were reversible upon transferring plants to a herbicide-free nutrient solution. These results indicate that L. minor plants have a high recovery potential even after multiple exposures to isoproturon. Observed cumulative decrease in biomass production, as well as the potential for fast and efficient recovery from repeated herbicide exposure, might affect the competitiveness of L. minor in surface water communities. The observations made during each exposure period, recovery patterns, and the resulting cumulative effects over time may contribute to further development, calibration and validation of mechanistic toxicokinetic/toxicodynamic models for simulating the effects of pesticides on aquatic plants populations in the laboratory and environmental conditions.
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Affiliation(s)
- Martina Varga
- University of Osijek, Department of Biology, Ulica cara Hadrijana 8/A, HR-31000, Osijek, Croatia.
| | - Paula Žurga
- Teaching Institute of Public Health of Primorsko-goranska County, Krešimirova 52, 51000, Rijeka, Croatia
| | - Iva Brusić
- Teaching Institute of Public Health of Primorsko-goranska County, Krešimirova 52, 51000, Rijeka, Croatia
| | - Janja Horvatić
- University of Osijek, Department of Biology, Ulica cara Hadrijana 8/A, HR-31000, Osijek, Croatia
| | - Marko Moslavac
- University of Osijek, Department of Biology, Ulica cara Hadrijana 8/A, HR-31000, Osijek, Croatia
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Gomes MP, Moreira Brito JC, Cristina Rocha D, Navarro-Silva MA, Juneau P. Individual and combined effects of amoxicillin, enrofloxacin, and oxytetracycline on Lemna minor physiology. Ecotoxicol Environ Saf 2020; 203:111025. [PMID: 32888593 DOI: 10.1016/j.ecoenv.2020.111025] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
We investigated individual and combined effects of environmentally representative concentrations of amoxicillin (AMX; 2 μg l-1), enrofloxacin (ENR; 2 μg l-1), and oxytetracycline (OXY; 1 μg l-1) on the aquatic macrophyte Lemna minor. While the concentrations of AMX and ENR tested were not toxic, OXY decreased plant growth and cell division. OXY induced hydrogen peroxide (H2O2) accumulation and related oxidative stress through its interference with the activities of mitochondria electron transport chain enzymes, although those deleterious effects could be ameliorated by the presence of AMX and/or ENR, which prevented the overaccumulation of ROS by increasing catalase enzyme activity. L. minor plants accumulated significant quantities of AMX, ENR and OXY from the media, although competitive uptakes were observed when plants were submitted to binary or tertiary mixtures of those antibiotics. Our results therefore indicate L. minor as a candidate for phytoremediation of service waters contaminated by AMX, ENR, and/or OXY.
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Affiliation(s)
- Marcelo Pedrosa Gomes
- Laboratório de Fisiologia de Plantas Sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco H. dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, 81531-980, Curitiba, Paraná, Brazil.
| | - Júlio César Moreira Brito
- Fundação Ezequiel Dias, Rua Conde Pereira Carneiro, 80, 30510-010, Belo Horizonte, Minas Gerais, Brazil
| | - Daiane Cristina Rocha
- Laboratório de Fisiologia de Plantas Sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco H. dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, 81531-980, Curitiba, Paraná, Brazil
| | - Mário Antônio Navarro-Silva
- Laboratório de Morfologia e Fisiologia de Culicidae e Chronomidae, Departamento de Zoologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco H. dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, 81531-980, Curitiba, Paraná, Brazil
| | - Philippe Juneau
- Ecotoxicology of Aquatic Microorganisms Laboratory, GRIL, EcotoQ, TOXEN, Department of Biological Sciences, Université du Québec à Montréal, Montréal, Succ. Centre-Ville, H3C 3P8, Montréal, QC, Canada.
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15
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Hlavkova D, Caloudova H, Palikova P, Kopel P, Plhalova L, Beklova M, Havelkova B. Effect of Gold Nanoparticles and Ions Exposure on the Aquatic Organisms. Bull Environ Contam Toxicol 2020; 105:530-537. [PMID: 32940716 DOI: 10.1007/s00128-020-02988-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 09/03/2020] [Indexed: 06/11/2023]
Abstract
An increase in the production and usage of gold nanoparticles (AuNPs) triggers the necessity to focus on their impact on ecosystems. Therefore, the purpose of this study was to investigate the acute toxicity of AuNPs and ionic gold (Au (III)) to organisms representing all trophic levels of the aquatic ecosystem, namely producers (duckweed Lemna minor), consumers (crustacean Daphnia magna, embryos of Danio rerio) and decomposers (bacteria Vibrio fischeri). The organisms were exposed according to a standardized protocol for each species and endpoints. The AuNPs (1.16 and 11.6 d.nm) were synthesized using citrate (CIT) and polyvinylpyrrolidone (PVP) as capping agents, respectively. It was found, that Au (III) was significantly more toxic than AuNPs PVP and AuNPs CIT. AuNPs showed significant toxicity only at high concentrations (mg/L), which are not environmentally relevant in the present time, but a cautious approach is advised, due to the possibility of interactions with other contaminants.
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Affiliation(s)
- Daniela Hlavkova
- Department of Ecology and Diseases of Zooanimals, Game, Fish and Bees, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho tr. 1946/1, 612 42, Brno, Czech Republic.
| | - Hana Caloudova
- Department of Animal Protection and Welfare and Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Pavla Palikova
- Department of Ecology and Diseases of Zooanimals, Game, Fish and Bees, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho tr. 1946/1, 612 42, Brno, Czech Republic
| | - Pavel Kopel
- Department of Inorganic Chemistry, Faculty of Science, Palacky University, 17. listopadu 12, 771 46, Olomouc, Czech Republic
| | - Lucie Plhalova
- Department of Animal Protection and Welfare and Veterinary Public Health, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Brno, Czech Republic
| | - Miroslava Beklova
- Department of Ecology and Diseases of Zooanimals, Game, Fish and Bees, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho tr. 1946/1, 612 42, Brno, Czech Republic
| | - Barbora Havelkova
- Department of Ecology and Diseases of Zooanimals, Game, Fish and Bees, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackeho tr. 1946/1, 612 42, Brno, Czech Republic
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16
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Daniel D, de Alkimin GD, Nunes B. Single and combined effects of the drugs salicylic acid and acetazolamide: Adverse changes in physiological parameters of the freshwater macrophyte, Lemna gibba. Environ Toxicol Pharmacol 2020; 79:103431. [PMID: 32479818 DOI: 10.1016/j.etap.2020.103431] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 05/25/2020] [Accepted: 05/27/2020] [Indexed: 06/11/2023]
Abstract
Pharmaceutical drugs are among the most used chemicals, for human and veterinary medicines, aquaculture and agriculture. Pharmaceuticals are biologically active molecules, having also environmental persistence, thereby exerting biological effects on non-target species. Among the most used pharmaceuticals, one may find salicylic acid (SA), a non-steroid anti-inflammatory drugs (NSAIDs), and acetazolamide (ACZ), a diuretic drug that acts by inhibiting the activity of carbonic anhydrase (CA). In this work, single and combined effects of SA and ACZ were assessed in the aquatic macrophyte Lemna gibba L., focusing on physiological parameters, namely photosynthetic pigments, (chlorophyll a, b and total (Chl a, b and TChl) as well as carotenoids (Car)). In addition, chemical biomarkers, namely, glutathione S-transferases (GSTs), catalase (CAT) and carbonic anhydrase (CA) activities, were also determined. The highest concentrations of ACZ, caused a decrease in the contents of all chlorophylls; this effect was however reverted by SA exposure. Both ACZ and SA levels caused a decrease in CA activity. Nevertheless, when in combination, this inhibition was not observed in plants exposed to the lowest concentration of these drugs. In conclusion, both pharmaceuticals have the capacity to cause alterations in L. gibba enzymatic activity and photosynthetic pigments content. Additionally, SA seems to exert a protective effect on this species against deleterious effects caused by ACZ.
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Affiliation(s)
- David Daniel
- Departamento De Biologia, Universidade De Aveiro, Campusde Santiago, 3810-193 Aveiro, Portugal
| | - Gilberto Dias de Alkimin
- Departamento De Biologia, Universidade De Aveiro, Campusde Santiago, 3810-193 Aveiro, Portugal; Centro De Estudos Do Ambiente e Do Mar (CESAM), Universidade De Aveiro, Campus De Santiago, 3810-193 Aveiro, Portugal
| | - Bruno Nunes
- Departamento De Biologia, Universidade De Aveiro, Campusde Santiago, 3810-193 Aveiro, Portugal; Centro De Estudos Do Ambiente e Do Mar (CESAM), Universidade De Aveiro, Campus De Santiago, 3810-193 Aveiro, Portugal.
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17
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Adomas B, Sikorski Ł, Bęś A, Warmiński K. Exposure of Lemna minor L. to gentian violet or Congo red is associated with changes in the biosynthesis pathway of biogenic amines. Chemosphere 2020; 254:126752. [PMID: 32335436 DOI: 10.1016/j.chemosphere.2020.126752] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/06/2020] [Accepted: 04/07/2020] [Indexed: 05/21/2023]
Abstract
In the literature, there is a lack of data on the effect of gentian violet (GV) and congo red (CR) dyes on the biosynthesis pathway of biogenic amines (BAs) in Lemna minor L. (common duckweed). This plant species is an important link in the food chain. Both dyes inhibited growth, biomass yield and the biosynthesis of chlorophyll a in common duckweed. The predicted toxic units demonstrated that GV had a more toxic effect on the growth rate and biomass yield of common duckweed than CR. Decarboxylase activity in the biosynthesis of BAs in common duckweed is also a useful indicator for evaluating the toxicity of both dyes. Gentian violet also exerted more phytotoxic effects on the analyzed biochemical features of common duckweed because it changed the putrescine (Put) biosynthesis pathway, increased tyramine content 1.6 fold, inhibited the activity of S-adenosylmethionine decarboxylase by 40% and the activity of ornithine decarboxylase (ODC) by 80%. Tyrosine decarboxylase (TDC) was most active in plants exposed to the highest concentration of GV. Similarly to control plants, in common duckweed exposed to CR, Put was synthesized from ornithine; however, spermidine content was 86% higher, Put content was 51% lower, and ODC activity was 86% lower.
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Affiliation(s)
- Barbara Adomas
- University of Warmia and Mazury in Olsztyn, Department of Chemistry, Research Group of Environmental Toxicology, ul. Prawocheńskiego 17, 10-720, Olsztyn, Poland
| | - Łukasz Sikorski
- University of Warmia and Mazury in Olsztyn, Department of Chemistry, Research Group of Environmental Toxicology, ul. Prawocheńskiego 17, 10-720, Olsztyn, Poland.
| | - Agnieszka Bęś
- University of Warmia and Mazury in Olsztyn, Department of Chemistry, Research Group of Environmental Toxicology, ul. Prawocheńskiego 17, 10-720, Olsztyn, Poland
| | - Kazimierz Warmiński
- University of Warmia and Mazury in Olsztyn, Department of Chemistry, Research Group of Environmental Toxicology, ul. Prawocheńskiego 17, 10-720, Olsztyn, Poland
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18
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O'Brien AM, Laurich J, Lash E, Frederickson ME. Mutualistic Outcomes Across Plant Populations, Microbes, and Environments in the Duckweed Lemna minor. Microb Ecol 2020; 80:384-397. [PMID: 32123959 DOI: 10.1007/s00248-019-01452-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 10/03/2019] [Indexed: 06/10/2023]
Abstract
The picture emerging from the rapidly growing literature on host-associated microbiota is that host traits and fitness often depend on interactive effects of host genotype, microbiota, and abiotic environment. However, testing interactive effects typically requires large, multi-factorial experiments and thus remains challenging in many systems. Furthermore, most studies of plant microbiomes focus on terrestrial hosts and microbes. Aquatic habitats may confer unique properties to microbiomes. We grew different populations of duckweed (Lemna minor), a floating aquatic plant, in three microbial treatments (adding no, "home", or "away" microbes) at two levels of zinc, a common water contaminant in urban areas, and measured both plant and microbial performance. Thus, we simultaneously manipulated plant source population, microbial community, and abiotic environment. We found strong effects of plant source, microbial treatment, and zinc on duckweed and microbial growth, with significant variation among duckweed genotypes and microbial communities. However, we found little evidence of interactive effects: zinc did not alter effects of host genotype or microbial community, and host genotype did not alter effects of microbial communities. Despite strong positive correlations between duckweed and microbe growth, zinc consistently decreased plant growth, but increased microbial growth. Furthermore, as in recent studies of terrestrial plants, microbial interactions altered a duckweed phenotype (frond aggregation). Our results suggest that duckweed source population, associated microbiome, and contaminant environment should all be considered for duckweed applications, such as phytoremediation. Lastly, we propose that duckweed microbes offer a robust experimental system for study of host-microbiota interactions under a range of environmental stresses.
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Affiliation(s)
- Anna M O'Brien
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, M5S 3B2, Canada.
| | - Jason Laurich
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, M5S 3B2, Canada
| | - Emma Lash
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, M5S 3B2, Canada
| | - Megan E Frederickson
- Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario, M5S 3B2, Canada
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19
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Nika MC, Ntaiou K, Elytis K, Thomaidi VS, Gatidou G, Kalantzi OI, Thomaidis NS, Stasinakis AS. Wide-scope target analysis of emerging contaminants in landfill leachates and risk assessment using Risk Quotient methodology. J Hazard Mater 2020; 394:122493. [PMID: 32240898 DOI: 10.1016/j.jhazmat.2020.122493] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 03/05/2020] [Accepted: 03/07/2020] [Indexed: 06/11/2023]
Abstract
Raw and treated leachate samples were collected from different landfills in Greece and analyzed for several groups of emerging contaminants using high resolution mass spectrometric workflows to investigate the possible threat from their discharge to the aquatic environment. Fifty-eight compounds were detected; 2-OH-benzothiazole was found at 84 % of the samples and perfluorooctanoic acid at 68 %. Bisphenol A, valsartan and 2-OH-benzothiazole had the highest average concentrations in raw leachates, after biological treatment and after reverse osmosis, respectively. In untreated leachates, Risk Quotients > 1 were calculated for 35 and 18 compounds when maximum and average concentrations were used, indicating an ecological threat for the aquatic environment. Leachates' biological treatment partially removed COD and NH4+-N, as well as 52.3 % of total emerging contaminants. The application of reverse osmosis resulted in a 98 % removal of major pollutants, 99 % removal of total emerging contaminants and a significant decrease of ecotoxicity to Lemna minor. Beside the decrease of the detected micropollutants during treatment, RQs > 1 were still calculated for 13 and 3 compounds after biological treatment and reverse osmosis, respectively. Among these, special attention should be given to 2-OH-benzothiazole and bisphenol A that had RQ values much higher than 1 for all tested organisms.
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Affiliation(s)
- M C Nika
- National and Kapodistrian University of Athens, Department of Chemistry, Laboratory of Analytical Chemistry, 15771, Athens, Greece
| | - K Ntaiou
- University of the Aegean, Department of Environment, Water and Air Quality Laboratory, 81100, Mytilene, Greece
| | - K Elytis
- National and Kapodistrian University of Athens, Department of Chemistry, Laboratory of Analytical Chemistry, 15771, Athens, Greece
| | - V S Thomaidi
- University of the Aegean, Department of Environment, Water and Air Quality Laboratory, 81100, Mytilene, Greece
| | - G Gatidou
- University of the Aegean, Department of Environment, Water and Air Quality Laboratory, 81100, Mytilene, Greece
| | - O I Kalantzi
- University of the Aegean, Department of Environment, Water and Air Quality Laboratory, 81100, Mytilene, Greece
| | - N S Thomaidis
- National and Kapodistrian University of Athens, Department of Chemistry, Laboratory of Analytical Chemistry, 15771, Athens, Greece
| | - A S Stasinakis
- University of the Aegean, Department of Environment, Water and Air Quality Laboratory, 81100, Mytilene, Greece.
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20
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Sha S, Hu D, Hu K, Cheng M, Zhang W, Xu Q. Metabolic modifications to Ni excess in L. minor: Role of organic-, amino- and fatty acid profiles. Chemosphere 2020; 251:126366. [PMID: 32145575 DOI: 10.1016/j.chemosphere.2020.126366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/24/2020] [Accepted: 02/26/2020] [Indexed: 06/10/2023]
Abstract
In this study, the effects of excess nickel (Ni) (100 μM and 200 μM) on growth, antioxidant production, fatty acid, organic and amino acids profiles were examined in Lemna minor L. After 7 days of Ni treatment, chlorosis, growth inhibition and ROS overproduction were observed, accompanied by Ni accumulation. Interestingly, decreased malondialdehyde (MDA) levels were recorded in fronds upon Ni exposure. Fatty acid profiles in Ni-treated L. minor were characterized by increases in saturated- and decreases in unsaturated fatty acids. Ni excess increased the activities of antioxidant enzymes such as superoxide dismutase (SOD), guiacol peroxidase (GPX), and glutathione reductase (GR), and non-enzymatic antioxidants such as glutathione (GSH) and ascorbic acid (AsA); however, deactivation of ascorbate peroxidase (APX) and catalase (CAT) activities were also observed. Disruption of amino acid metabolism in Ni-exposed fronds was evidenced by the accumulation of cysteine, arginine, threonine, valine, isoleucine, leucine, lysine and phenylalanine, as well as reduced levels of tyrosine, alanine, aspartate and proline. Approximately 299%-396%, 139%-254% and 56%-97% concentration increments in citric, malic and oxalic acids, respectively, were concomitantly observed with significant decreases in tartaric, acetic, and fumaric acids in fronds subjected to Ni stress. Taken together, these results indicated that Ni stress induced negative effects on plant physiological, biochemical and morphological processes; however, it is likely that the coordination of metabolites and antioxidants may ameliorate the damaging effects of Ni accumulation.
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Affiliation(s)
- Sha Sha
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China
| | - Dan Hu
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China
| | - Kaijie Hu
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China
| | - Menghua Cheng
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China
| | - Wei Zhang
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China
| | - Qinsong Xu
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China.
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21
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Ré A, Campos I, Saraiva MJ, Puga J, Keizer JJ, Gonçalves FJM, Pereira JL, Abrantes N. Wildfire effects on two freshwater producers: Combining in-situ and laboratory bioassays. Ecotoxicol Environ Saf 2020; 194:110361. [PMID: 32126411 DOI: 10.1016/j.ecoenv.2020.110361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 02/18/2020] [Accepted: 02/19/2020] [Indexed: 06/10/2023]
Abstract
Mediterranean forests are highly susceptible to wildfires, which can cause several impacts not only within burnt areas but also on downstream aquatic ecosystems. The ashes' washout from burnt areas by surface runoff can be a diffuse source of toxic substances, such as metals, when reaching the nearby aquatic systems, and can be noxious to aquatic organisms. The present work aimed at assessing the ecotoxicological effects of post-fire contamination on two aquatic producers (the microalgae Raphidocelis subcapitata and the macrophyte Lemna minor) through in-situ bioassays, validating the obtained results with the outcomes of laboratory bioassays with surface water collected simultaneously. Four distinct sites were selected in a basin partially burnt (Ceira river basin; Coimbra district, Portugal) for bioassay deployment: one site upstream the burnt area in the Ceira river (RUS); three sites located under the influence of the burnt area, one immediately downstream of the burnt area in the Ceira river (RDS) and the other two in tributary streams within the burnt area (BS1 and BS2). The in-situ bioassays lasted for 13 days and began following the first post-fire major rain events. Results showed that the microalgae growth rate was able to distinguish the three sites within and downstream of the burnt area (BS1, BS2, RDS) from the site upstream (RUS). By contrast, the macrophytes growth rate only allowed to differentiate between the sites within the burnt area (BS1 and BS2) and those up- and downstream of the burnt area (RUS and RDS). The in-situ results for both species were corroborated with the results of the laboratory experiments, supporting the use of laboratory surrogates for a screening assessment of wildfire impacts in aquatic ecosystems. Direct causal relationships between the observed ecotoxicological effects on R. subcapitata and L. minor and the physical-chemical parameters of the water samples were difficult to establish, although the results suggest (i) a role of differential major and trace metal load in explaining species growth variation; (ii) interaction between metals and/or between metals and other field parameters are likely to modulate the biological responses to the challenges deriving from wildfire runoff.
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Affiliation(s)
- Ana Ré
- Department of Biology and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| | - Isabel Campos
- Earth Surface Processes Team, CESAM and Department of Environment and Planning, University of Aveiro, Aveiro, Portugal
| | - Maria J Saraiva
- Earth Surface Processes Team, CESAM and Department of Environment and Planning, University of Aveiro, Aveiro, Portugal
| | - João Puga
- Earth Surface Processes Team, CESAM and Department of Environment and Planning, University of Aveiro, Aveiro, Portugal
| | - Jan Jacob Keizer
- Earth Surface Processes Team, CESAM and Department of Environment and Planning, University of Aveiro, Aveiro, Portugal
| | - Fernando J M Gonçalves
- Department of Biology and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| | - Joana L Pereira
- Department of Biology and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Aveiro, Portugal
| | - Nelson Abrantes
- Earth Surface Processes Team, CESAM and Department of Environment and Planning, University of Aveiro, Aveiro, Portugal.
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22
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Zhou J, Wu Z, Yu D, Yang L. Toxicity of the herbicide flurochloridone to the aquatic plants Ceratophyllum demersum and Lemna minor. Environ Sci Pollut Res Int 2020; 27:3923-3932. [PMID: 31823263 DOI: 10.1007/s11356-019-06477-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 09/09/2019] [Indexed: 05/25/2023]
Abstract
As a new and efficient selective pre-emergence herbicide, flurochloridone (FLC) has been widely promoted in recent years but readily results in residues in nature. As the primary producers and restorers of the water environment, aquatic plants are at risk of FLC exposure. In the present research, we studied the phytotoxicity of FLC in Lemna minor and Ceratophyllum demersum. The physiological and growth responses of these two aquatic plants exposed to different concentrations of FLC (0, 20, 100, 300, 1000, and 2000 μg/L) were measured. The results showed that FLC (≥ 20 μg/L) could cause serious photosynthesis pigment damage and bleaching in C. demersum and L. minor. Significant oxidative damage was observed in L. minor at 20 μg/L FLC, while there was no severe oxidative damage in C. demersum. At 100-300 μg/L FLC, peroxidase (POD) and superoxide dismutase (SOD) were activated to scavenge free radicals in L. minor, while POD acted as a protective enzyme in C. demersum. At higher concentrations of FLC (≥ 1000-2000 μg/L), L. minor reached less than healthy stability through the regulation of the antioxidant enzyme system and the chlorophyll a/b value. POD, SOD, and protein content returned to normal levels, and the growth parameters increased. However, in C. demersum, the enzymes POD and SOD and soluble protein were damaged, and oxidative stress reached the highest level at 1000-2000 μg/L FLC. Taken together, our results suggested that when treated with FLC, L. minor was more sensitive at lower doses (20 μg/L) and more adaptive at higher doses (1000-2000 μg/L) than C. demersum.
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Affiliation(s)
- Jianan Zhou
- National Field Station of Freshwater Ecosystem in Liangzi Lake, College of Life Sciences, Wuhan University, Wuhan, People's Republic of China.
| | - Zhonghua Wu
- National Field Station of Freshwater Ecosystem in Liangzi Lake, College of Life Sciences, Wuhan University, Wuhan, People's Republic of China.
| | - Dan Yu
- National Field Station of Freshwater Ecosystem in Liangzi Lake, College of Life Sciences, Wuhan University, Wuhan, People's Republic of China
| | - Lu Yang
- National Field Station of Freshwater Ecosystem in Liangzi Lake, College of Life Sciences, Wuhan University, Wuhan, People's Republic of China
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23
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de Alkimin GD, Paisio C, Agostini E, Nunes B. Phytoremediation processes of domestic and textile effluents: evaluation of the efficacy and toxicological effects in Lemna minor and Daphnia magna. Environ Sci Pollut Res Int 2020; 27:4423-4441. [PMID: 31832946 DOI: 10.1007/s11356-019-07098-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Accepted: 11/18/2019] [Indexed: 06/10/2023]
Abstract
Phytoremediation has been proposed as a potential biotechnological strategy to remediate effluents before their release into the environment. The use of common aquatic plant species, such as macrophytes (e.g., Lemna spp.) as a cleanup solution has been proposed decades ago. However, the effectiveness of such processes must be assessed by analyzing the toxicity of resulting effluents, for the monitoring of wastewater quality. To attain this purpose, this work intended to quantify the efficacy of a Lemna-based wastewater phytoremediation process, by analyzing toxicological effects of domestic and textile effluents. The toxic effects were measured in Lemna minor (same organisms used in the phytoremediation process, by quantifying toxicological endpoints such as root length, pigment content, and catalase activity) and by quantifying individual parameters of Daphnia magna (immobilization, reproduction, and behavior analysis). Phytoremediation process resulted in a decrease of chemical oxygen demand in both effluents and in an increase in root length of exposed plants. Moreover, textile effluent decreased pigments content and increased catalase activity, while domestic effluent increased the anthocyanin content of exposed plants. D. magna acute tests allowed calculating a EC50 and Toxic Units interval of 53.82-66.89%/1.85-1.49, respectively, to raw textile effluent; however, it was not possible to calculate these parameters for raw and treated domestic effluent (RDE and TDE). Therefore, in general, the acute toxicity of effluent toward D. magna was null for RDE, and mild for the treated textile effluent (TTE), probably due to the effect of phytoremediation. Exposure to textile effluents (raw and treated) increased the total number of neonates of D. magna and, in general, both textile effluents decreased D. magna distance swim. Moreover, although both effluents were capable of causing morphological and physiological/biochemical alterations in L. minor plants, organisms of this species were able to survive in the presence of both effluents and to remediate them.
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Affiliation(s)
- Gilberto Dias de Alkimin
- Departamento de Biologia, Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal
- Centro de Estudos do Ambiente e do Mar (CESAM), Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Cintia Paisio
- Department of Molecular Biology, FCEFQyN, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
| | - Elizabeth Agostini
- Department of Molecular Biology, FCEFQyN, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, X5804BYA, Río Cuarto, Córdoba, Argentina
| | - Bruno Nunes
- Departamento de Biologia, Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
- Centro de Estudos do Ambiente e do Mar (CESAM), Campus de Santiago, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
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24
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Yang L, Yao J, Sun J, Shi L, Chen Y, Sun J. The Ca 2+ signaling, Glu, and GABA responds to Cd stress in duckweed. Aquat Toxicol 2020; 218:105352. [PMID: 31790938 DOI: 10.1016/j.aquatox.2019.105352] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 10/30/2019] [Accepted: 10/30/2019] [Indexed: 05/15/2023]
Abstract
Cadmium (Cd) affects plants and animal health seriously. Ca2+ signals in plant cells are important for adaptive responses to environmental stresses. Here we showed that 50 μM Cd shock stimulated the Ca2+ signal via modifying the instantaneous Ca2+ flux from influx of 17 pmol·cm-2·s-1 to the efflux of 240 pmol·cm-2·s-1 at 100 μm from rhizoid tip. And the Ca2+ signal transferred to the vein and mesophyll cell. The Ca addition decreased the accumulation of Cd. The gene expression of glutamate receptor-like (GLR) proteins, which is activated by Glu and triggers Ca2+ flux, was increased significantly by 24 h Cd stress. Glu content was increased under Cd stress and exogenous Glu triggered the Ca2+ signal in duckweed, while Ca2+ addition caused no influence to Glu content. GABA, which is synthesized from Glu and acts as an inhibitory neurotransmitter, has been decreased with 24 h Cd treatment. GABA addition increased the abscission rate and Glu addition decreased the abscission rate during Cd stress, suggesting that the Glu/GABA ratio is important for responding to Cd. This research shows the sight of the Glu, Ca2+, GABA signaling networks during Cd stress.
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Affiliation(s)
- Lin Yang
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China
| | - Jie Yao
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China
| | - Jinge Sun
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China
| | - Leqian Shi
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China
| | - Yikai Chen
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China
| | - Jinsheng Sun
- Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China.
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Kostopoulou S, Ntatsi G, Arapis G, Aliferis KA. Assessment of the effects of metribuzin, glyphosate, and their mixtures on the metabolism of the model plant Lemna minor L. applying metabolomics. Chemosphere 2020; 239:124582. [PMID: 31514011 DOI: 10.1016/j.chemosphere.2019.124582] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/10/2019] [Accepted: 08/12/2019] [Indexed: 05/14/2023]
Abstract
Chemical plant protection products (PPPs) is a major group of xenobiotics that are being released in the environment. Although the effects of individual active ingredients (a.i.) on organisms have been studied, information on those of mixtures, is fragmented. Aquatic environments are being polluted by PPPs, posing serious risks for the environment, human, and other organisms. Based on the potential of the model aquatic plant Lemna minor L. in the assessment of PPPs-caused stresses, we have undertaken the task of developing a metabolomics approach for the study of the effects of metribuzin and glyphosate, and their mixtures. Bioassays revealed that metribuzin exhibit higher toxicity than glyphosate and metabolomics highlighted corresponding changes in its metabolome. Treatments had a substantial impact on plants' amino acid pool, resulting in elevated levels of the majority of the identified amino acids. Results indicate that the increased proteolytic activity is a common effect of the a.i. and their mixtures. Additionally, the activation of salicylate-signaling pathways was recorded as a response to the toxicity caused by mixtures. Among the identified metabolites that were discovered as biomarkers were γ-aminobutyric acid (GABA), salicylate, caffeate, α,α-trehalose, and squalene, which play multiple roles in plants' metabolism such as, signaling, antioxidant, and structure protection. No reports exist on the combined effects of PPPs on Lemna and results confirm the applicability of Lemna metabolomics in the study of the combined effects of herbicides and its potential in the monitoring of the environmental health of aquatic environments based on fluctuations of the plant's metabolism.
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Affiliation(s)
- Sofia Kostopoulou
- Laboratory of Pesticide Science, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece; Laboratory of Vegetable Production Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece
| | - Georgia Ntatsi
- Institute of Plant Breeding and Genetic Resources, Hellenic Agricultural Organization ELGO-DEMETER, Thermi, Thessaloniki, GR-57001, Greece; Laboratory of Vegetable Production Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 11855, Athens, Greece
| | - Gerasimos Arapis
- Laboratory of Ecology and Environmental Sciences, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece.
| | - Konstantinos A Aliferis
- Laboratory of Pesticide Science, Department of Crop Science, Agricultural University of Athens, Iera Odos 75, 118 55, Athens, Greece; Department of Plant Science, McGill University, Macdonald Campus, Ste-Anne-de-Bellevue, QC H9X 3V9, Canada.
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26
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Wan X, Steinman AD, Shu X, Cao Q, Yao L, Xie L. Combined toxic effects of microcystin-LR and phenanthrene on growth and antioxidant system of duckweed (Lemna gibba L.). Ecotoxicol Environ Saf 2019; 185:109668. [PMID: 31574372 DOI: 10.1016/j.ecoenv.2019.109668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 09/02/2019] [Accepted: 09/08/2019] [Indexed: 06/10/2023]
Abstract
Microcystins and polycyclic aromatic hydrocarbons commonly co-exist in eutrophic freshwater environments. However, their combined toxicity remains unknown. The aim of this study was to evaluate the combined toxic effects of microcystin-LR (MC-LR) and phenanthrene (Phe) on duckweed (Lemna gibba L.) during a short-term exposure (7 d). L. gibba was exposed to a range of environmentally relevant concentrations of MC-LR (5, 50, 250, 500 μg/L) and Phe (0.1, 1, 5, 10 μg/L), both individually and in MC-LR + Phe mixtures (5 + 0.1, 50 + 1, 250 + 5, 500 + 10 μg/L). Subsequently, biomarkers of toxicity such as growth, chlorophyll-a, and antioxidant enzyme activity (catalase, superoxide dismutase, and peroxidase) were analyzed in L. gibba. Growth and the antioxidant system of L. gibba were not significantly inhibited by Phe alone, whereas higher concentrations of individual MC-LR (≥50 μg/L) significantly inhibited growth and induced oxidative stress. Based on Abott's formula, their interaction effects were concentration dependent. Antagonistic effects were observed when exposed to combinations of lower concentrations of MC-LR and Phe (≤50 + 1 μg/L), while additive or synergistic effects were induced at higher concentrations of both compounds (≥250 + 5 μg/L). Moreover, higher concentrations of Phe (≥5 μg/L) increased the accumulation of MC-LR in L. gibba. Our results suggested that the toxic effects of MC-LR and phenanthrene were exacerbated only when they co-exist in water bodies at relatively high concentrations. Consequently, co-existence of MC-LR and Phe at low levels are unlikely to exacerbate ecological hazards to L. gibba in most aquatic environments, at least based on responses of this plant.
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Affiliation(s)
- Xiang Wan
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Alan D Steinman
- Annis Water Resources Institute, Grand Valley State University, 740 West Shoreline Drive, Muskegon, MI, 49441, USA
| | - Xiubo Shu
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China
| | - Qing Cao
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China
| | - Lei Yao
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liqiang Xie
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, 73 East Beijing Road, Nanjing, 210008, China.
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27
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Pietrini F, Passatore L, Fischetti E, Carloni S, Ferrario C, Polesello S, Zacchini M. Evaluation of morpho-physiological traits and contaminant accumulation ability in Lemna minor L. treated with increasing perfluorooctanoic acid (PFOA) concentrations under laboratory conditions. Sci Total Environ 2019; 695:133828. [PMID: 31419689 DOI: 10.1016/j.scitotenv.2019.133828] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 08/06/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
There is increasing concern about the effects of releasing emerging contaminants (i.e. endocrine-disrupting chemicals, pharmaceuticals, personal-care products and flame retardants) into the environment. Particular attention is being paid to perfluoroalkyl substances (PFAS) because of their persistence and bioaccumulation, especially in the aquatic environment. In this paper, we present results of a study aimed at evaluating the effects of different perfluorooctanoic acid (PFOA) concentrations (2, 20 and 200 μg/L) on morpho-physiological traits in Lemna minor L. plants. The accumulation of PFOA in the plant's tissues was also monitored. L. minor was selected as a model plant for ecotoxicological studies, and we performed a seven-day assay for this investigation. The results highlight the lack of inhibitory effects on biometric parameters such as mean frond area, total frond number, multiplication rate, doubling time of frond number and average specific growth rate, for each of tested PFOA concentrations. Also, at photosynthetic level, physiological measurements showed that chlorophyll content and electron transport rate (ETR) were not affected by the exposure to PFOA. Remarkably, the chlorophyll fluorescence images, used for the first time in a study on PFOA, evidenced no impairment to the photosynthetic efficiency, measured by the maximum quantum yield of photosystem II (PSII) photochemistry (Fv/Fm), the quantum efficiency of PSII photochemistry (ΦPSII) and the non-photochemical quenching (NPQ) over the leaf surface of PFOA-treated plants, in comparison to control. Quantification of PFOA in the growth medium at the end of the seven-day test revealed no statistically different concentrations in plates with or without L. minor plants. We detected increasing PFOA accumulation in plant tissues, in accordance with the PFOA concentrations in the medium. Therefore, the L. minor plants were capable of taking up and accumulating PFOA. The ecological impact of the environmentally relevant PFOA concentrations tested in this work on biological organisms of the aquatic environment is discussed.
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Affiliation(s)
- Fabrizio Pietrini
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy, Section of Montelibretti, Via Salaria km 29.300, 00015 Monterotondo, Rome, Italy
| | - Laura Passatore
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy, Section of Montelibretti, Via Salaria km 29.300, 00015 Monterotondo, Rome, Italy
| | - Elisa Fischetti
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy, Section of Montelibretti, Via Salaria km 29.300, 00015 Monterotondo, Rome, Italy
| | - Serena Carloni
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy, Section of Montelibretti, Via Salaria km 29.300, 00015 Monterotondo, Rome, Italy
| | - Claudia Ferrario
- Water Research Institute, National Research Council of Italy, Section of Brugherio, via del Mulino 19, 20861 Brugherio, Italy
| | - Stefano Polesello
- Water Research Institute, National Research Council of Italy, Section of Brugherio, via del Mulino 19, 20861 Brugherio, Italy
| | - Massimo Zacchini
- Research Institute on Terrestrial Ecosystems, National Research Council of Italy, Section of Montelibretti, Via Salaria km 29.300, 00015 Monterotondo, Rome, Italy.
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28
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Flores-Rojas NC, Esterhuizen-Londt M, Pflugmacher S. Uptake, Growth, and Pigment Changes in Lemna minor L. Exposed to Environmental Concentrations of Cylindrospermopsin. Toxins (Basel) 2019; 11:toxins11110650. [PMID: 31703455 PMCID: PMC6891409 DOI: 10.3390/toxins11110650] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/21/2019] [Accepted: 11/05/2019] [Indexed: 01/17/2023] Open
Abstract
Cylindrospermopsin (CYN)-producing cyanobacterial blooms such as Raphidiopsis, Aphanizomenon, Anabaena, Umezakia, and Lyngbya spp. are occurring more commonly and frequently worldwide. CYN is an environmentally stable extracellular toxin, which inhibits protein synthesis, and, therefore, can potentially affect a wide variety of aquatic biota. Submerged and floating macrophytes, as primary producers in oligotrophic habitats, are at risk of exposure and information on the effects of CYN exposure at environmentally relevant concentrations is limited. In the present study, we investigated CYN uptake in the floating macrophyte Lemna minor with exposure to reported environmental concentrations. The effects were evaluated in terms of bioaccumulation, relative plant growth, and number of fronds per day. Variations in the concentrations and ratios of the chlorophylls as stress markers and carotenoids as markers of oxidative stress defense were measured. With exposure to 25 μg/L, L. minor could remove 43% of CYN within 24 h but CYN was not bioaccumulated. Generally, the pigment concentrations were elevated with exposure to 0.025, 0.25, and 2.5 μg/L CYN after 24 h, but normalized quickly thereafter. Changes in relative plant growth were observed with exposure to 0.25 and 2.5 μg/L CYN. Adverse effects were seen with these environmentally realistic concentrations within 24 h; however, L. minor successfully recovered within the next 48-96 h.
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Affiliation(s)
| | - Maranda Esterhuizen-Londt
- Faculty of Biological and Environmental Sciences, Ecosystems and Environmental Research Programme, University of Helsinki, Niemenkatu 73, 15140 Lahti, Finland;
- Korea Institute of Science and Technology Europe (KIST), Joint Laboratory of Applied Ecotoxicology, Campus 7.1, 66123 Saarbrücken, Germany
- Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, Fabianinkatu 33, 00014 Helsinki, Finland
- Correspondence: ; Tel.: +358-50-318-8337
| | - Stephan Pflugmacher
- Faculty of Biological and Environmental Sciences, Ecosystems and Environmental Research Programme, University of Helsinki, Niemenkatu 73, 15140 Lahti, Finland;
- Korea Institute of Science and Technology Europe (KIST), Joint Laboratory of Applied Ecotoxicology, Campus 7.1, 66123 Saarbrücken, Germany
- Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, Fabianinkatu 33, 00014 Helsinki, Finland
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29
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Nunes B, Veiga V, Frankenbach S, Serôdio J, Pinto G. Evaluation of physiological changes induced by the fluoroquinolone antibiotic ciprofloxacin in the freshwater macrophyte species Lemna minor and Lemna gibba. Environ Toxicol Pharmacol 2019; 72:103242. [PMID: 31473558 DOI: 10.1016/j.etap.2019.103242] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 06/10/2023]
Abstract
The worldwide increase in the consumption of antibiotics is becoming a concern for the scientific community, since the presence of their residues in the wild poses specific challenges, especially in ecotoxicological terms. Currently, antibiotics are used for a wide range of purposes, being used against bacterial diseases but also as growth promoters. As a result, their environmental presence can affect wild organisms, especially those from the aquatic environment. This scenario leads to the need of characterizing the toxicity of antibiotics, especially towards non-target organisms. In this study we selected two species of aquatic macrophytes, Lemna minor and Lemna gibba, which are standard plant species inscribed in ecotoxicological testing guidelines. In this work we characterized the toxic effects of the quinolone antibiotic ciprofloxacin (in levels of 0.005, 0.013, 0.031, 0.078, and 0.195 mg/L), focusing on its potential toxicity towards photosynthetic mechanisms, and pro-oxidant effects. These objectives were attained by measuring the concentrations of chlorophyll a and b, and carotenoids levels. The determination of the quantum yield allowed assessing the effects of ciprofloxacin on the photochemical efficiency of the Photosystem II (PSII). The pro-oxidant effects induced by ciprofloxacin were evaluated by measuring oxidative stress biomarkers, such as catalase activity, and also by determining lipoperoxidation levels. The obtained results showed no differences in terms of the content of both chlorophylls a and b, or any change in the photochemical efficiency of the PSII; however, the global carotenoids content of L. gibba were significantly decreased. The activity of the anti-oxidant enzyme catalase was also significantly increased in L. minor. L. gibba showed a decrease in lipid peroxidation levels, but only for the two lowest concentrations of ciprofloxacin. The global set of data shows the activation of the anti-oxidant defensive system of both plant species, a response that was likely activated by the pro-oxidant character of ciprofloxacin. Our data demonstrate the interference of this therapeutic compound at different levels of plant metabolism, at ecologically relevant concentrations. In fact, the obtained results are of ecological relevance since they illustrate deleterious effects that may compromise the physiology of aquatic non-target plant species.
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Affiliation(s)
- Bruno Nunes
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Centro de Estudos do Ambiente e do Mar, Laboratório Associado (CESAM, LA) Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - Vítor Veiga
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Silja Frankenbach
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Centro de Estudos do Ambiente e do Mar, Laboratório Associado (CESAM, LA) Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - João Serôdio
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Centro de Estudos do Ambiente e do Mar, Laboratório Associado (CESAM, LA) Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Glória Pinto
- Departamento de Biologia, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; Centro de Estudos do Ambiente e do Mar, Laboratório Associado (CESAM, LA) Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
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Mateos-Cárdenas A, Scott DT, Seitmaganbetova G, Frank N A M VP, John O, Marcel A K J. Polyethylene microplastics adhere to Lemna minor (L.), yet have no effects on plant growth or feeding by Gammarus duebeni (Lillj.). Sci Total Environ 2019; 689:413-421. [PMID: 31279188 DOI: 10.1016/j.scitotenv.2019.06.359] [Citation(s) in RCA: 124] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/20/2019] [Accepted: 06/22/2019] [Indexed: 05/20/2023]
Abstract
Microplastics (1-1000 μm) are ubiquitous in the marine, freshwater and terrestrial environments. These microsized plastics are considered freshwater pollutants of emerging concern, although the impacts on organisms and ecosystems are not yet clear. In particular, effects of microplastics on freshwater aquatic plants and the fate of microplastics in the freshwater trophic chain remain largely unexplored. Here we demonstrate that 10-45 μm polyethylene (PE) microplastics can strongly adsorb to all surfaces of the duckweed species Lemna minor. Despite adsorbance of up to 7 PE microplastics per mm2, seven day exposure experiments showed that photosynthetic efficiency and plant growth are not affected by microplastics. Rather, dense surface coverage suggests L. minor as a potential vector for the trophic transfer of microplastics. Here we show that the freshwater amphipod Gammarus duebeni can ingest 10-45 μm PE microplastics by feeding on contaminated L. minor. In this study, ingestion of microplastics had no apparent impact on amphipod mortality or mobility after 24 or 48 h exposure. Yet, the feeding study showed that the fate of microplastics in the environment may be complex, involving both plant adsorbance and trophic transfer.
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Affiliation(s)
- Alicia Mateos-Cárdenas
- School of Biological, Earth and Environmental Sciences, University College Cork, North Mall, Cork City, Ireland; Environmental Research Institute, Lee Road, Cork City, Ireland.
| | - David T Scott
- School of Biological, Earth and Environmental Sciences, University College Cork, North Mall, Cork City, Ireland; Environmental Research Institute, Lee Road, Cork City, Ireland
| | - Gulzara Seitmaganbetova
- School of Biological, Earth and Environmental Sciences, University College Cork, North Mall, Cork City, Ireland; Environmental Research Institute, Lee Road, Cork City, Ireland
| | - van Pelt Frank N A M
- Department of Pharmacology and Therapeutics, Western Gateway Building, University College Cork, Western Road, Cork City, Ireland; Environmental Research Institute, Lee Road, Cork City, Ireland
| | - O'Halloran John
- School of Biological, Earth and Environmental Sciences, University College Cork, North Mall, Cork City, Ireland; Environmental Research Institute, Lee Road, Cork City, Ireland
| | - Jansen Marcel A K
- School of Biological, Earth and Environmental Sciences, University College Cork, North Mall, Cork City, Ireland; Environmental Research Institute, Lee Road, Cork City, Ireland
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Yadav MK, Kumar A, Short MD, Nidumolu B, Saint CP. Aquatic Phytotoxicity to Lemna minor of Three Commonly Used Drugs of Addiction in Australia. Bull Environ Contam Toxicol 2019; 103:710-716. [PMID: 31482305 DOI: 10.1007/s00128-019-02708-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 08/28/2019] [Indexed: 06/10/2023]
Abstract
The manufacturing and consumption of drugs of addiction has increased globally and their widespread occurrence in the environment is an emerging concern. This study evaluated the phytotoxicity of three compounds: methamphetamine, codeine and morphine; commonly reported in Australian urban water, to the aquatic plant Lemna minor under controlled conditions. L. minor was sensitive to lower drug concentrations when administered in multi-compound mixtures (100-500 µg L-1) than when applied individually (range 600-2500 µg L-1), while no adverse effects were observed at environmentally-relevant concentrations (1-5 µg L-1) detected in wastewater effluent. In conclusion, the results show that the concentrations of these compounds discharged into the environment are unlikely to pose adverse phytotoxic effects. These three compounds are known to be the most stable of their group under such conditions indicating that with this respect it is safe to use recycled water for existing regulated reclaimed purposes including agricultural or parklands irrigation or replenishing surface and groundwater. However, more research on the analysis of methamphetamines and opiates in municipal effluents is needed to reassure the likely environmental hazard of these neuroactive drug classes to aquatic organisms. Given the ever-growing production and aquatic disposal of discharge wastewater globally, this study provides timely and valuable insights into the likely drug-related impacts of effluent disposal on aquatic plants in receiving environments.
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Affiliation(s)
- Meena K Yadav
- Natural and Built Environments Research Centre, School of Natural and Built Environments, University of South Australia, Mawson Lakes, SA, 5095, Australia
| | - Anu Kumar
- CSIRO, Land and Water, Waite Campus, Urrbrae, SA, 5064, Australia
| | - Michael D Short
- Natural and Built Environments Research Centre, School of Natural and Built Environments, University of South Australia, Mawson Lakes, SA, 5095, Australia
- Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia
| | - Bhanu Nidumolu
- CSIRO, Land and Water, Waite Campus, Urrbrae, SA, 5064, Australia
| | - Christopher P Saint
- Natural and Built Environments Research Centre, School of Natural and Built Environments, University of South Australia, Mawson Lakes, SA, 5095, Australia.
- Future Industries Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia.
- Division of Information Technology, Engineering and the Environment, University of South Australia, Mawson Lakes, SA, 5095, Australia.
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Sha S, Cheng M, Hu K, Zhang W, Yang Y, Xu Q. Toxic effects of Pb on Spirodela polyrhiza (L.): Subcellular distribution, chemical forms, morphological and physiological disorders. Ecotoxicol Environ Saf 2019; 181:146-154. [PMID: 31177079 DOI: 10.1016/j.ecoenv.2019.05.085] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/27/2019] [Accepted: 05/31/2019] [Indexed: 06/09/2023]
Abstract
The impact of lead (Pb) on Spirodela polyrhiza was studied to determine the subcellular distribution, chemical forms, and resulting morphophysiological modifications after treatments with 20 or 80 μM Pb(NO3)2 for 10 days. At the subcellular level, the Pb uptake by S. polyrhiza was mainly compartmentalized in the cell walls (70%), and the majority of Pb (approximately 70%) was extracted using 1 M NaCl and 2% acetic acid (HAc). Visual symptoms of phytotoxcity, surface roughness and closure of stomata, were observed in Pb-treated fronds. Electron-dense precipitates were present in cell walls, and changes to the ultrastructure were most noticeably exhibited in organelle shape, internal organization, and size of the plastoglobules of chloroplasts. Toxic concentrations of Pb induced oxidative stress in fronds, characterized by an accumulation of malondialdehyde (MDA) and decreased chlorophyll and unsaturated fatty acid contents. Pb exposure increased ABS/RC, TRo/RC, DIo/RC, Vj, and φDo (Fv/Fm), indicating that reaction centers were transformed to dissipation sinks, leading to a decrease in the efficiency of photosystem II, which was evident from the decreased values of Fv/Fo, Fv/Fm, ψEo, φEo, RC/ABS, and PIabs. These results indicated that decreased photosynthesis in Pb-treated fronds was partially ascribed to the lower pigment content, inhibition of electron transport, inactivation of the reaction centers, damage to the chloroplast ultrastructure, and stomatal closure. The physiological implications of subcellular distribution and chemical forms are discussed in relation to Pb accumulation and detoxification. However, Pb accumulation significantly impaired photosynthesis and membrane integrity in the fronds of S. polyrhiza.
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Affiliation(s)
- Sha Sha
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China
| | - Menghua Cheng
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China
| | - Kaijie Hu
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China
| | - Wei Zhang
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China
| | - Yaru Yang
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China
| | - Qinsong Xu
- College of Life Science, Nanjing Normal University, Nanjing, 210023, China.
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Türker OC, Yakar A, Türe C, Saz Ç. Boron (B) removal and bioelectricity captured from irrigation water using engineered duckweed-microbial fuel cell: effect of plant species and vegetation structure. Environ Sci Pollut Res Int 2019; 26:31522-31536. [PMID: 31478178 DOI: 10.1007/s11356-019-06285-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Accepted: 08/22/2019] [Indexed: 06/10/2023]
Abstract
Boron (B) in the irrigation water can be hazardous to human beings and other aquatic or terrestrial organisms when B concentration exceeds a certain level. More importantly, B removal from irrigation water is relatively difficult using conventional processes. In the present experiment, an innovative treatment model based on monoculture and polyculture duckweed wastewater treatment modules was tested for B-rich irrigation water purification and bioelectricity harvesting. Different modules were designed using Lemna gibba L., Lemna minor L., and their combination in order to determine the most optimal duckweed species and vegetation structure for B removal process and bioelectricity generation in a module. In this respect, the module with a monoculture of Lemna gibba achieved the highest net B removal efficiency (71%) when it was exposed to 4 mg/L B (initial concentration). However, B removal efficiencies from all modules decreased when the initial B concentrations reached up to 4 mg/L in the irrigation water. The highest bioelectricity production was measured as 1.04 V with 17783 mWatt/m2 power density at a current density of 44.06 mA/m2 for module with Lemna gibba in monoculture through sacrificial magnesium anode. Specifically, both monocultures and polyculture removed considerable amounts of organic matter from irrigation water. However, biomass production and total chlorophyll (a + b) concentrations of duckweeds significantly decreased when they were exposed to 32 mg/L B in the irrigation water samples. Consequently, our modules present a holistic perspective to the prevention B toxicity problems in agricultural zones, and are a sustainable strategy for farmers or agricultural experts to produce bioelectricity by a cost-effective and eco-technological method.
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Affiliation(s)
- Onur Can Türker
- Faculty of Science and Letters, Department of Biology, Aksaray University, Aksaray, Turkey.
| | - Anıl Yakar
- Faculty of Science, Department of Biology, Eskişehir Technical University, Eskişehir, Turkey
| | - Cengiz Türe
- Faculty of Science, Department of Biology, Eskişehir Technical University, Eskişehir, Turkey
| | - Çağdaş Saz
- Faculty of Science, Department of Biology, Eskişehir Technical University, Eskişehir, Turkey
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Pheomphun P, Treesubsuntorn C, Thiravetyan P. Effect of exogenous catechin on alleviating O 3 stress: The role of catechin-quinone in lipid peroxidation, salicylic acid, chlorophyll content, and antioxidant enzymes of Zamioculcas zamiifolia. Ecotoxicol Environ Saf 2019; 180:374-383. [PMID: 31102845 DOI: 10.1016/j.ecoenv.2019.05.002] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/27/2019] [Accepted: 05/01/2019] [Indexed: 05/20/2023]
Abstract
Ozone (O3) can cause oxidative stress in plants and humans. Catechin is an antioxidant that enriches tea and can probably increase O3 tolerance in plants. To investigate the mechanism of catechin to alleviate O3 stress in plants, Zamiocalcus zamiifolia (an efficient plant for O3 phytoremediation) was sprayed with 5 mM catechin and was used to expose O3 (150-250) under long-term operation (10 cycles). We investigated whether exogenous catechin could enhance O3 removal and alleviate O3 stress through a balanced redox state in plants. Z. zamiifolia sprayed with catechin exhibited higher O3 removal (80.27±3.12%), than Z. zamiifolia without catechin (50.03±2.68%). O3 in the range of 150-250 ppb led to stress in plants, as shown by an increased malondialdehyde content (MDA) and salicylic acid (SA). Whereas under the presence of O3, exogenous catechin could maintain the MDA content and inhibit SA accumulation. Under Z. zamiifolia+catechin+O3 conditions, catechin reacted with O3, which led to the formation of catechin-quinone. The formation of catechin-quinone was confirmed by the depletion of reduced glutathione content (GSH). This catechin-quinone could induce GST and APX genes that are up-regulated approximately 35- and 5-fold, respectively. Hence, Z. zamiifolia+catechin+O3 conditions had higher performance for coping with oxidative stress than did Z. zamiifolia+O3 conditions. This evidence demonstrates that catechin could enhance O3 removal through a balanced redox state in plant cells. Finally, the application of tea extract for enhanced O3 removal is also shown in this study.
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Affiliation(s)
- Piyatida Pheomphun
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand
| | - Chairat Treesubsuntorn
- Pilot Plant Development and Training Institute, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand
| | - Paitip Thiravetyan
- School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand.
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Hu D, Cheng M, Hu K, Zhang W, Yang Y, Xu Q. Evaluation of cobalt hyperaccumulation and tolerance potential of the duckweed (Lemna minor L.). Ecotoxicol Environ Saf 2019; 179:79-87. [PMID: 31026753 DOI: 10.1016/j.ecoenv.2019.04.058] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 04/15/2019] [Accepted: 04/18/2019] [Indexed: 06/09/2023]
Abstract
Lemna minor could tolerate and accumulate more than 5,000 μg g-1 DW of cobalt (Co) without foliar symptoms, indicating it is a Co hyperaccumulator. However, the physiological and metabolomics mechanisms that are responsible for Co accumulation and tolerance are largely unknown. In the present study, Fourier transform infrared spectroscopy suggested that CO, CH, and OH groups are involved in Co biosorption. The activation of antioxidant enzymes, such as superoxide dismutase, guiacol peroxidase, catalase, and glutathione reductase, as well as ascorbic acid and glutathione might be involved in capturing reactive oxygen species as evidenced by decreased malondialdehyde in fronds treated with Co. Metabolomics analysis revealed that Co stress significantly increased the production of several amino acids (except aspartic acid and cysteine at 200 μM) and organic acids (with the exception of succinic acid). In particular, an approximate 15-fold increase was noted in the citric acid concentration. Upon exposure to Co, increases were observed in citrate synthase, malate dehydrogenase, and phosphoenolpyruvate carboxylase activities, and a decrease was observed in isocitrate dehydrogenase related to the metabolism of organic acids. Overall, the increase in concentration of organic and amino acids and antioxidants support their effective involvement in improving Co tolerance and accumulation in L. minor.
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Affiliation(s)
- Dan Hu
- College of Life Science, Nanjing Normal University, Nanjing 210023, China
| | - Menghua Cheng
- College of Life Science, Nanjing Normal University, Nanjing 210023, China
| | - Kaijie Hu
- College of Life Science, Nanjing Normal University, Nanjing 210023, China
| | - Wei Zhang
- College of Life Science, Nanjing Normal University, Nanjing 210023, China
| | - Yaru Yang
- College of Life Science, Nanjing Normal University, Nanjing 210023, China
| | - Qinsong Xu
- College of Life Science, Nanjing Normal University, Nanjing 210023, China.
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36
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Singh V, Pandey B, Suthar S. Phytotoxicity and degradation of antibiotic ofloxacin in duckweed (Spirodela polyrhiza) system. Ecotoxicol Environ Saf 2019; 179:88-95. [PMID: 31026754 DOI: 10.1016/j.ecoenv.2019.04.018] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 04/02/2019] [Accepted: 04/05/2019] [Indexed: 05/21/2023]
Abstract
The phytotoxicity and degradation of ofloxacin (OFX) in duckweed Spirodela polyrhiza based system was estimated in this study. For that, OFX was added in an environmentally relevant range (0.01-1.0 mg L-1) in medium (Hoagland nutrient) and toxicity biomarkers, i.e. changes in plant biomass, relative growth rate (RGR), photopigment (Chl-a, Chl-b and carotenoids), protein content, antioxidative enzymes (catalase, CAT; superoxide dismutase, SOD; and ascorbate peroxidases, APX) in fronds were estimated. The batch-scale setups (250 ml) was prepared in triplicate for each concentration of OFX and reared in growth chambers (Algae Tron AG 230) for 7 d. Results suggested that the high concentrations of OFX caused a reduction in biomass (4.8-41.3%), relative root growth (RGR), protein (4.16-11.28%) and photopigment contents. The fronds in OFX spiked setups showed an increased level of antioxidative enzymes: CAT (0.230-0.338 mmolH2O2 mg-1 protein), APX (0.043-0.074 mmolascorbate mg-1 protein), and SOD (0.267-0.317 U mg-1 protein) than control. At the end (7 d), the residual OFX content in the medium was also estimated, and results suggested a significant (p < 0.05) reduction (93.73-98.36%) in OFX content than control setup (54.76-75.53%) at the end of the experimentation. The trend of residual OFX suggested phytodegradation as a significant mechanism of antibiotic degradation other than hydrolysis and photodegradation processes. This study indicates that duckweed can be an effective bio-tool for the removal of environmental relevant concentration of the antibiotics from the wastewater.
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Affiliation(s)
- Vineet Singh
- School of Environment & Natural Resources, Doon University, Dehradun, 248001, Uttarakhand, India
| | - Bhawna Pandey
- School of Environment & Natural Resources, Doon University, Dehradun, 248001, Uttarakhand, India
| | - Surindra Suthar
- School of Environment & Natural Resources, Doon University, Dehradun, 248001, Uttarakhand, India.
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Klementová Š, Hornychová L, Šorf M, Zemanová J, Kahoun D. Toxicity of atrazine and the products of its homogeneous photocatalytic degradation on the aquatic organisms Lemna minor and Daphnia magna. Environ Sci Pollut Res Int 2019; 26:27259-27267. [PMID: 31321724 DOI: 10.1007/s11356-019-05710-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 06/06/2019] [Indexed: 06/10/2023]
Abstract
Usage of atrazine, a widely used herbicide, is now banned in many countries. Although forbidden to use, significant concentration of this herbicide is still present in the environment. The study focused not only on the toxicity of atrazine itself but also on products of homogeneous photocatalytic degradation. Such degradation was very fast in given conditions (sufficient amount of Fe(III) in the reaction system)-more than 95% of the initial amount of atrazine was eliminated after 30 min of irradiation. The toxicity of atrazine and its photodegradation products were examined on the aquatic plant Lemna minor and microcrustacean Daphnia magna in both acute and chronic tests. While the growth inhibition assay of atrazine for Lemna minor revealed EC50 value of 128.4 μg dm-3, the herbicide did not affect Daphnia in the acute toxicity assay. A degradation product, desethyl-atrazine, has been demonstrated to have a pronounced negative effect on the plant growth. Both atrazine and desethyl-atrazine affect negatively the number of juveniles and number of clutches of Daphnia magna in the chronic toxicity assay. Photocatalytic degradation lowers the negative effect of atrazine in Daphnia magna while photodegradation products still negatively affect Lemna growth.
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Affiliation(s)
- Šárka Klementová
- Faculty of Science, Department of Chemistry, University of South Bohemia, Branišovská 1716/31c, 370 05, České Budějovice, Czech Republic
| | - Lucie Hornychová
- Faculty of Science, Department of Chemistry, University of South Bohemia, Branišovská 1716/31c, 370 05, České Budějovice, Czech Republic
| | - Michal Šorf
- Faculty of Science, Department of Ecosystem Biology, University of South Bohemia, Branišovská 1716/31c, 370 05, České Budějovice, Czech Republic.
- Faculty of AgriSciences, Department of Zoology, Fisheries, Hydrobiology and Apiculture, Mendel University in Brno, Zemědělská 1, 613 00, Brno, Czech Republic.
| | - Jana Zemanová
- Faculty of Science, Department of Ecosystem Biology, University of South Bohemia, Branišovská 1716/31c, 370 05, České Budějovice, Czech Republic
| | - David Kahoun
- Faculty of Science, Department of Chemistry, University of South Bohemia, Branišovská 1716/31c, 370 05, České Budějovice, Czech Republic
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Varga M, Horvatić J, Žurga P, Brusić I, Moslavac M. Phytotoxicity assessment of isoproturon on growth and physiology of non-targeted aquatic plant Lemna minor L. - A comparison of continuous and pulsed exposure with equivalent time-averaged concentrations. Aquat Toxicol 2019; 213:105225. [PMID: 31220755 DOI: 10.1016/j.aquatox.2019.105225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Revised: 06/10/2019] [Accepted: 06/11/2019] [Indexed: 06/09/2023]
Abstract
Phenylurea herbicides are often present in the aquatic ecosystems and may be accumulated by the non-targeted organisms and impose a negative effect on the organism and the community. This study aims to investigate and compare the effects of two different isoproturon (IPU) pulse exposure scenarios on the non-targeted aquatic plant Lemna minor with effects observed in the standard test with continuous exposure. The obtained results showed that continuous IPU treatment causes significant reduction of photosynthetic pigment concentration and proteins as well as inhibition of L. minor growth. The activities of CAT, G-POX, and APX were significantly induced to diminish the accumulation of ROS under IPU treatment, but the induction of antioxidant enzymes was not sufficient to protect the plants from herbicide-induced oxidative stress. The growth of L. minor under pulse exposure to IPU recovers fast, but pulse treatment results in significant physiological changes in treated plants. The accumulation of H2O2 and lipid peroxidation products, alongside the reduced concentration of proteins and photosynthetic pigments in pulse treatment after a recovery period, indicates that IPU causes prolonged oxidative stress in L. minor plants. The recovery potential of L. minor plants after treatment with herbicides may have an important role in maintaining the population of essential primary producers in aquatic ecosystems, but IPU-induced physiological changes could potentially have a significant role in modulating the response of the plants to the next exposure event.
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Affiliation(s)
- Martina Varga
- University of Osijek, Department of Biology, Ulica cara Hadrijana 8/A, HR-31000 Osijek, Croatia.
| | - Janja Horvatić
- University of Osijek, Department of Biology, Ulica cara Hadrijana 8/A, HR-31000 Osijek, Croatia
| | - Paula Žurga
- Teaching Institute of Public Health of Primorsko-goranska County, Krešimirova 52, 51000 Rijeka, Croatia
| | - Iva Brusić
- Teaching Institute of Public Health of Primorsko-goranska County, Krešimirova 52, 51000 Rijeka, Croatia
| | - Marko Moslavac
- University of Osijek, Department of Biology, Ulica cara Hadrijana 8/A, HR-31000 Osijek, Croatia
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Radić S, Domijan AM, Glavaš Ljubimir K, Maldini K, Ivešić M, Peharec Štefanić P, Krivohlavek A. Toxicity of nanosilver and fumonisin B 1 and their interactions on duckweed (Lemna minor L.). Chemosphere 2019; 229:86-93. [PMID: 31078035 DOI: 10.1016/j.chemosphere.2019.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/23/2019] [Accepted: 05/01/2019] [Indexed: 06/09/2023]
Abstract
In the environment co-contamination of several toxicants commonly occurs. However, toxicological studies usually are focused on only one toxicant. The aim of this study was to investigate toxicity of silver nanoparticles (AgNP) and mycotoxin fumonisin B1 (FB1) and their possible interactions as well as to explore tentative mechanism of their toxic effect. Duckweed (Lemna minor L.) was treated with AgNP or FB1 (at concentrations 0.5 and 1.0 mg L-1) or with their combination at same concentrations for 3 days. Both AgNP and FB1, applied individually significantly affected levels of certain nutrients, reduced growth rate and the levels of photosynthetic pigments though AgNP at a much greater extent compared to FB1. Furthermore, AgNP induced ROS generation, lipid peroxidation and increase of antioxidative enzymes activities, while FB1 induced changes only in the activities of antioxidative enzymes. Those results implicate that phytotoxicity of both AgNP and FB1 can be associated with imbalance of mineral and cell redox status. However, toxic actions of AgNp singly applied were more pronounced. Combined treatment with AgNP and FB1 produced higher degree of changes in all parameters than corresponding concentrations of AgNP or FB1 alone implying their additive effects. Additionally, higher level of FB1 found in medium, and higher level of intracellular Ag following combined treatment indicates interaction of two toxicants at the transport level/uptake in the cell which resulted in higher accumulation of Ag in duckweed cells. The latter in turn exerted higher toxicity to duckweed compared to single treatment of AgNP.
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Affiliation(s)
- Sandra Radić
- University of Zagreb, Faculty of Science, Department of Biology, HR-10000, Zagreb, Croatia.
| | - Ana-Marija Domijan
- University of Zagreb, Faculty of Pharmacy and Biochemistry, Department of Pharmaceutical Botany, HR-10000, Zagreb, Croatia
| | | | - Krešimir Maldini
- Croatian Waters, Main Water Management Laboratory, HR-10000, Zagreb, Croatia
| | - Martina Ivešić
- Institute of Public Health "Dr Andrija Štampar", Department of Environmental Protection and Health Ecology, HR-10000, Zagreb, Croatia
| | - Petra Peharec Štefanić
- University of Zagreb, Faculty of Science, Department of Biology, HR-10000, Zagreb, Croatia
| | - Adela Krivohlavek
- Institute of Public Health "Dr Andrija Štampar", Department of Environmental Protection and Health Ecology, HR-10000, Zagreb, Croatia
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40
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Souza LRR, Bernardes LE, Barbetta MFS, da Veiga MAMS. Iron oxide nanoparticle phytotoxicity to the aquatic plant Lemna minor: effect on reactive oxygen species (ROS) production and chlorophyll a/chlorophyll b ratio. Environ Sci Pollut Res Int 2019; 26:24121-24131. [PMID: 31228067 DOI: 10.1007/s11356-019-05713-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 06/07/2019] [Indexed: 06/09/2023]
Abstract
Although iron oxide occurs naturally in the environment, iron oxide nanoparticles have distinct mobility, reactivity, and toxicity, which can harm the human health and nature. This scenario has motivated the investigation of the toxic effects of iron oxide nanoparticles (akaganeite predominance + hematite) on the aquatic plant Lemna minor. First, nanoparticles were synthesized and characterized; then, different iron oxide NP concentrations were added to Lemna minor culture. After 7 days, all the Lemna minor leaves died, irrespective of the added NP concentration. The iron oxide NP impact on the plant was evaluated based on malondialdehyde (MDA) production from thiobarbituric acid reactive substances (TBARS), which was dose-dependent; i.e., lipid peroxidation in the plant increased with rising iron oxide NP concentration. The chlorophyll content decreased at high iron oxide NP concentrations, which disrupted the light absorption mechanism. Fe accumulation in Lemna minor roots also occurred, which can harm nutrient uptake. Therefore, the iron oxide NP toxic impact on plants and related ecosystems requires further studies in order to prevent environmental damage.
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Affiliation(s)
- Lilian Rodrigues Rosa Souza
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre, Ribeirão Preto, SP, 14040-901, Brazil
| | - Luís Eduardo Bernardes
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre, Ribeirão Preto, SP, 14040-901, Brazil
| | - Maike Felipe Santos Barbetta
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre, Ribeirão Preto, SP, 14040-901, Brazil
| | - Márcia Andreia Mesquita Silva da Veiga
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes 3900, Monte Alegre, Ribeirão Preto, SP, 14040-901, Brazil.
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Mihajlović V, Tomić T, Tubić A, Molnar Jazić J, Ivančev Tumbas I, Šunjka D, Lazić S, Teodorović I. The impact of humic acid on toxicity of individual herbicides and their mixtures to aquatic macrophytes. Environ Sci Pollut Res Int 2019; 26:23571-23582. [PMID: 31203541 DOI: 10.1007/s11356-019-05629-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 05/29/2019] [Indexed: 06/09/2023]
Abstract
This study investigates the impact of humic acid (HA) on the toxicity of selected herbicides and their binary mixtures to aquatic plants. The focus was on two auxin simulators (2,4-D and dicamba) and two photosynthetic inhibitors (atrazine and isoproturon). The results suggested that the addition of HA to the standard synthetic medium does not affect Lemna minor growth nor the toxicity of atrazine, but increases the toxicity of 2,4-D and the binary mixture of atrazine and 2,4-D. The addition of HA to the standard synthetic medium reversibly decreased the growth (biomass) of Myriophyllum aquaticum and enhanced the toxicity of individually tested herbicides (isoproturon and dicamba) as well as their binary mixture. The results showed delayed toxic effects of auxin simulators, especially 2,4-D in the Lemna test. The recovery after the exposure to individual photosystem II inhibitors (atrazine and isoproturon) is fast in both plant species, regardless of the presence of HA. In the case of selected mixtures (atrazine + 2,4-D and isoproturon + dicamba), recovery of both plant species was noted, while the efficiency depended on the herbicide concentration in the mixture rather than the presence or absence of HA.
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Affiliation(s)
- Varja Mihajlović
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, 21 000, Serbia.
| | - Tanja Tomić
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, 21 000, Serbia
| | - Aleksandra Tubić
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, 21 000, Serbia
| | - Jelena Molnar Jazić
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, 21 000, Serbia
| | - Ivana Ivančev Tumbas
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, 21 000, Serbia
| | - Dragana Šunjka
- Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, Novi Sad, 21 000, Serbia
| | - Sanja Lazić
- Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, Novi Sad, 21 000, Serbia
| | - Ivana Teodorović
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, 21 000, Serbia
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Martinez RS, Sáenz ME, Alberdi JL, Di Marzio WD. Comparative ecotoxicity of single and binary mixtures exposures of nickel and zinc on growth and biomarkers of Lemna gibba. Ecotoxicology 2019; 28:686-697. [PMID: 31222581 DOI: 10.1007/s10646-019-02065-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/03/2019] [Indexed: 06/09/2023]
Abstract
The aim of this study was to compare the ecotoxicity of nickel (Ni) and zinc (Zn) assayed as single and as binary mixture. In addition, how were affected the population growth rates and oxidative stress biomarkers, comparing single to binary exposures. The toxicity tests were performed on Lemna gibba using a 7-day test. All calculations were made using measured total dissolved metal concentrations. IC50-7d, based on growth rate calculated on frond number and fresh weight, were 2.47/3.89 mg/L, and 76.73/76.93 mg/L, for Ni and Zn, respectively. Single metals affected plant growth following a non-linear concentration-response relationship. LOEC values for each metal were obtained at 0.92 and 20.1 mg/L for Ni and Zn, respectively. Biomarkers of the antioxidant response like Catalase (CAT; EC 1.11.1.6), ascorbate peroxidase (APOX; EC 1.11.1.11) and guaiacol peroxidase (GPOX; EC 1.11.1.7) activities in single metals assays were higher than controls, but when similar concentrations were added as mixtures, that increase was reduced and inhibition with respect to the control was observed for GPOX. APOX showed the highest activity. The concentration addition (CA) approach was evaluated and resulted in a correct predictor of Ni-Zn mixture toxicity on Lemna gibba. This was made comparing the EC50 and LOEC, measured taking the growth rate as endpoint, with those expected values according to the CA model. However, the measured biomarkers indicating a positive response to free radicals did not fit to concentration addition model when assayed in the binary mixture. Also, the main activity response of these was observed within a range of concentrations below the LOEC values for the mixture.
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Affiliation(s)
- R S Martinez
- CONICET Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
- Departamento de Ciencias Básicas, Programa de Investigación en Ecotoxicología, Universidad Nacional de Luján, Luján, Argentina
| | - M E Sáenz
- CONICET Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
- Departamento de Ciencias Básicas, Programa de Investigación en Ecotoxicología, Universidad Nacional de Luján, Luján, Argentina
| | - J L Alberdi
- Departamento de Ciencias Básicas, Programa de Investigación en Ecotoxicología, Universidad Nacional de Luján, Luján, Argentina
| | - W D Di Marzio
- CONICET Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina.
- Departamento de Ciencias Básicas, Programa de Investigación en Ecotoxicología, Universidad Nacional de Luján, Luján, Argentina.
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Paquet N, Indiketi N, Dalencourt C, Larivière D, Roberge S, Gruyer N, Triffault-Bouchet G, Fortin C. Toxicity of tailing leachates from a niobium mine toward three aquatic organisms. Ecotoxicol Environ Saf 2019; 176:355-363. [PMID: 30954621 DOI: 10.1016/j.ecoenv.2019.03.065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 02/28/2019] [Accepted: 03/15/2019] [Indexed: 06/09/2023]
Abstract
The aim of this research was to assess the ecotoxicity of leachates originating from a niobium mine located in Canada. These tailings contain considerable amounts of carbonates and phosphates and could potentially be used as fertilizer for agriculture. However, the presence of different contaminants linked with the ores mined, including rare earth elements and daughter elements of the uranium disintegration chain is of concern. Bioassays have been used to determine if the tailings leachates could be harmful. The assessment of the toxicity of progressive dilutions of five tailing leachates (808, 809, 810, 811 and 897) was performed on different organisms: phytoplankton Raphidocelis subcapitata and duckweed Lemna minor, based on their growth and chlorophyll a content, and water flea Daphnia magna based on their mobility, mortality and reproduction. Overall, the leachates showed higher toxicity to Raphidocelis subcapitata and Lemna minor, than toward Daphnia magna. Leachate 808 showed no toxicity to all organisms while leachate 810 showed significant effects to all species. The results can be explained by the leachate dissolved metal or nutrient concentrations, but also by the metal bioavailability which depends on pH and hardness. Generally, toxicity was observed in undiluted samples tested, which is not representative of the conditions that could occur in the environment. This supports the idea that these tailings could be used as fertilizer albeit more studies may be required, particularly to assess the toxicity of the tailings leachate for benthic organisms, the toxicity of the tailings for terrestrial organisms and the variations of soil and sediment physicochemical properties after tailing treatments.
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Affiliation(s)
- Nathalie Paquet
- Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement et de la Lutte contre les changements climatiques, 2700 rue Einstein, G1P 3W8, Québec, Canada.
| | - Nishodi Indiketi
- Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement et de la Lutte contre les changements climatiques, 2700 rue Einstein, G1P 3W8, Québec, Canada; Institut national de la recherche scientifique, Centre Eau Terre Environnement (INRS-ETE), 490 de la Couronne, G1K 9A9, Québec, Canada
| | - Claire Dalencourt
- Département de chimie, Faculté des sciences et de génie, Université Laval, 1045, avenue de la Médecine, Pavillon Alexandre-Vachon, G1V 0A6, Québec, Canada
| | - Dominic Larivière
- Département de chimie, Faculté des sciences et de génie, Université Laval, 1045, avenue de la Médecine, Pavillon Alexandre-Vachon, G1V 0A6, Québec, Canada
| | - Steeve Roberge
- Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement et de la Lutte contre les changements climatiques, 2700 rue Einstein, G1P 3W8, Québec, Canada
| | - Nicolas Gruyer
- Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement et de la Lutte contre les changements climatiques, 2700 rue Einstein, G1P 3W8, Québec, Canada
| | - Gaëlle Triffault-Bouchet
- Centre d'expertise en analyse environnementale du Québec, Ministère de l'Environnement et de la Lutte contre les changements climatiques, 2700 rue Einstein, G1P 3W8, Québec, Canada
| | - Claude Fortin
- Institut national de la recherche scientifique, Centre Eau Terre Environnement (INRS-ETE), 490 de la Couronne, G1K 9A9, Québec, Canada
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Valimaña-Traverso J, Amariei G, Boltes K, García MÁ, Marina ML. Stability and toxicity studies for duloxetine and econazole on Spirodela polyrhiza using chiral capillary electrophoresis. J Hazard Mater 2019; 374:203-210. [PMID: 31003121 DOI: 10.1016/j.jhazmat.2019.04.027] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 04/03/2019] [Accepted: 04/04/2019] [Indexed: 06/09/2023]
Abstract
Stability and toxicity studies for duloxetine and econazole were achieved using individual solutions and their mixtures. Stability of drugs racemates and enantiomers was investigated under abiotic and biotic conditions. Toxicity was evaluated for the first time on Spirodela polyrhiza. EC50 values were calculated for each individual drug and for their binary mixture. Real (not nominal) concentrations determined by Capillary Electrophoresis were employed in the calculations of toxicity parameters. The use of a 25 mM phosphate buffer (pH 3.0) with 1.5% S-β-CD as chiral selector at a temperature of 30 °C and a separation voltage of -20 kV enabled the simultaneous enantiomeric separation of duloxetine and econazole in 7.5 min with enantiomeric resolutions of 7.9 and 6.5, respectively. For individual solutions, decay percentages under abiotic conditions were higher for duloxetine (80%) than for econazole (60%), while in presence of Spirodela polyrhiza they increased for duloxetine but not for econazole. Econazole showed the highest decay percentages under abiotic or biotic conditions (100%) in binary mixtures. EC50 values for duloxetine and econazole enabled to include both drugs within the group of very toxic compounds although econazole showed a higher toxicity than duloxetine and the binary mixture.
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Affiliation(s)
- Jesús Valimaña-Traverso
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, 28871, Alcalá de Henares (Madrid), Spain
| | - Georgiana Amariei
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, 28871, Alcalá de Henares (Madrid), Spain
| | - Karina Boltes
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, 28871, Alcalá de Henares (Madrid), Spain; Madrid Institute for Advanced Studies of Water (IMDEA Agua), Parque Científico Tecnológico, E-28805, Alcalá de Henares (Madrid), Spain
| | - Maria Ángeles García
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, 28871, Alcalá de Henares (Madrid), Spain; Instituto de Investigación Química Andrés M. del Río, Universidad de Alcalá, Ctra, Madrid-Barcelona Km. 33.600, 28871, Alcalá de Henares (Madrid), Spain
| | - Maria Luisa Marina
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Ctra. Madrid-Barcelona Km. 33.600, 28871, Alcalá de Henares (Madrid), Spain; Instituto de Investigación Química Andrés M. del Río, Universidad de Alcalá, Ctra, Madrid-Barcelona Km. 33.600, 28871, Alcalá de Henares (Madrid), Spain.
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Gholami P, Dinpazhoh L, Khataee A, Orooji Y. Sonocatalytic activity of biochar-supported ZnO nanorods in degradation of gemifloxacin: Synergy study, effect of parameters and phytotoxicity evaluation. Ultrason Sonochem 2019; 55:44-56. [PMID: 31084790 DOI: 10.1016/j.ultsonch.2019.03.001] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 02/20/2019] [Accepted: 03/02/2019] [Indexed: 06/09/2023]
Abstract
This study focuses on the facile preparation of ZnO-biochar (ZnO-BC) nanocomposite prepared by the hydrothermal approach as an efficient sonocatalyst for degradation and mineralization of gemifloxacin (GMF). Morphological and textural characteristics of bare biochar (BC), ZnO nanorods (ZnO NRs) and ZnO-BC nanocomposite were investigated using TEM, SEM and BET analyses. Moreover, XRD, FTIR, EDX and UV-vis DRS analyses were performed to study the crystalline structure, functional groups, elemental composition and optical properties of the samples, respectively. ZnO-BC nanocomposite showed better sonocatalytic performance than BC and ZnO NRs owing to its huge surface area, narrow band gap and enhanced sonoluminescence phenomenon. These properties led to the synergetic ability of ultrasonic irradiation and catalytic activity of ZnO-BC to generate reactive species and subsequent radical reactions. In addition, the effect of the addition of various gases and scavengers on the removal of GMF was evaluated. The GC-MS analysis was used to verify the generation of some intermediates and a possible pathway was proposed accordingly. 83.7% COD removal efficiency was observed within 90 min treatment confirming efficient mineralization of GMF solution. The phytotoxicity test was carried out using Lemna minor and the results proved that after the treatment process, a considerable toxicity removal of the GMF solution had occured.
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Affiliation(s)
- Peyman Gholami
- College of Materials Science and Engineering, Nanjing Forestry University, No. 159, Longpan Road, Nanjing, 210037 Jiangsu, People's Republic of China; Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran
| | - Laleh Dinpazhoh
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran; Department of Materials Science and Nanotechnology Engineering, Faculty of Engineering, Near East University, 99138 Nicosia, Mersin 10, Turkey.
| | - Yasin Orooji
- College of Materials Science and Engineering, Nanjing Forestry University, No. 159, Longpan Road, Nanjing, 210037 Jiangsu, People's Republic of China.
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Escoto DF, Gayer MC, Bianchini MC, da Cruz Pereira G, Roehrs R, Denardin ELG. Use of Pistia stratiotes for phytoremediation of water resources contaminated by clomazone. Chemosphere 2019; 227:299-304. [PMID: 30999171 DOI: 10.1016/j.chemosphere.2019.04.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 03/17/2019] [Accepted: 04/02/2019] [Indexed: 06/09/2023]
Abstract
The Pistia stratiotes L. was tested for phytoremediation potential of the compound clomazone in water. Clomazone is a post-emergent herbicide marketed as Gamit®. Five groups with four samples each were evaluated, a low concentration control (LCC: 37.86 mg L-1), low concentration treatment (LCT: 38.16 mg L-1), high concentration control (HCC: 54.71 mg L-1), high concentration treatment (HCT: 54.33 mg L-1), and a plant control group (PCG). Plant resistance to clomazone at determined concentrations and their ability to remove the herbicide from water by HPLC over 24 days were evaluated. The results demonstrate that P. stratiotes has high resistance to clomazone exposure and was able to eliminate up to 90% of the herbicide residues during the experimental period. Under dissipation by P. stratiotes in water, clomazone had a halflife of 19.6 days for in the control treatments, LCC and HCC, and 8.0 days in the treatment groups, LCT and HCT. This study indicates that Pistia stratiotes is an effective phytoremediation agent for the herbicide clomazone in water.
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Affiliation(s)
- Dandara Fidélis Escoto
- Laboratório de Estudos Físico-Químicos e de Produtos Naturais (LEFQPN), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97508-000, Uruguaiana, RS, Brazil; Grupo de Pesquisas em Prática de Ensino (GIPPE), Campus Uruguaiana, Universidade Federal do Pampa, Uruguaiana, 97508-000, RS, Brazil
| | - Mateus Cristofary Gayer
- Grupo de Pesquisas em Prática de Ensino (GIPPE), Campus Uruguaiana, Universidade Federal do Pampa, Uruguaiana, 97508-000, RS, Brazil
| | | | - Geovana da Cruz Pereira
- Grupo de Pesquisas em Prática de Ensino (GIPPE), Campus Uruguaiana, Universidade Federal do Pampa, Uruguaiana, 97508-000, RS, Brazil
| | - Rafael Roehrs
- Grupo de Pesquisas em Prática de Ensino (GIPPE), Campus Uruguaiana, Universidade Federal do Pampa, Uruguaiana, 97508-000, RS, Brazil
| | - Elton L G Denardin
- Laboratório de Estudos Físico-Químicos e de Produtos Naturais (LEFQPN), Campus Uruguaiana, Universidade Federal do Pampa, CEP 97508-000, Uruguaiana, RS, Brazil.
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Roubeau Dumont E, Larue C, Lorber S, Gryta H, Billoir E, Gross EM, Elger A. Does intraspecific variability matter in ecological risk assessment? Investigation of genotypic variations in three macrophyte species exposed to copper. Aquat Toxicol 2019; 211:29-37. [PMID: 30913512 DOI: 10.1016/j.aquatox.2019.03.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 03/09/2019] [Accepted: 03/15/2019] [Indexed: 06/09/2023]
Abstract
To limit anthropogenic impact on ecosystems, regulations have been implemented along with global awareness that human activities are harmful to the environment. Ecological risk assessment (ERA) is the main procedure which allows to assess potential impacts of stressors on the environment as a result of human activities. ERA is typically implemented through different steps of laboratory testing. The approaches taken for ERA evolve along with scientific knowledge, to improve predictions on ecological risks for ecosystems. We here address the importance of intraspecific variability as a potential source of error in the laboratory evaluation of pollutants. To answer this question, three aquatic macrophyte species with different life-history traits but with their leaves directly in contact with the water were chosen; Lemna minor and Myriophyllum spicatum, two OECD model species, and Ceratophyllum demersum. For each species, three or four genotypes were exposed to 7-8 copper concentrations (up to 1.9 mg/L, 2 mg/L or 36 mg/L for C. demersum, L. minor and M. spicatum, respectively). To assess species sensitivity, growth-related endpoints such as Relative Growth Rate (RGR), based either on biomass production or on length/frond production, and chlorophyll fluorescence Fv/Fm, were measured. For each endpoint, the effective concentration 50% (EC50) was calculated. Almost all endpoints were affected by Cu exposure, except Fv/Fm of M. spicatum, and resulted in significant differences among genotypes for Cu sensitivity. Genotypes of L. minor exhibited up to 35% of variation in EC50 values based on Fv/Fm, showing differential sensivity among genotypes. Significant differences in EC50 values were found for RGR based on length for M. spicatum, with up to 72% of variation. Finally, C. demersum demonstrated significant sensitivity differences among genotypes with up to 78% variation for EC50 based on length. Overall, interspecific variation was higher than intraspecific variation, and explained 77% of the variation found among genotypes for RGR based on biomass, and 99% of the variation found for Fv/Fm. Our results highlight that depending on the endpoint, sensitivity can vary greatly within a species, and that pollutant- and species-specific endpoints should be considered in ERA.
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Affiliation(s)
| | - Camille Larue
- ECOLAB, Université de Toulouse, CNRS, INPT, UPS, France
| | - Sophie Lorber
- Toxalim, Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, Toulouse, France
| | - Hervé Gryta
- Laboratoire Evolution & Diversité Biologique (EDB UMR 5174), Université de Toulouse, CNRS, IRD, UPS, 118 route de Narbonne, Bat 4R1, 31062, Toulouse, France
| | - Elise Billoir
- LIEC, Université de Lorraine, CNRS, UMR 7360, Metz, Lorraine, France
| | | | - Arnaud Elger
- ECOLAB, Université de Toulouse, CNRS, INPT, UPS, France
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Hájková M, Kummerová M, Zezulka Š, Babula P, Váczi P. Diclofenac as an environmental threat: Impact on the photosynthetic processes of Lemna minor chloroplasts. Chemosphere 2019; 224:892-899. [PMID: 30986895 DOI: 10.1016/j.chemosphere.2019.02.197] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/27/2019] [Accepted: 02/28/2019] [Indexed: 05/03/2023]
Abstract
Mechanisms of pharmaceuticals action on biochemical and physiological processes in plants that determine plant growth and development are still mostly unknown. This study deals with the effects of non-steroidal anti-inflammatory drug diclofenac (DCF) on photosynthesis as an essential anabolic process. Changes in primary and secondary photosynthetic processes were assessed in chloroplasts isolated from Lemna minor exposed to 1, 10, 100, and 1000 μM DCF. Decreases in the potential and effective quantum yields of photosystem II (FV/FM by 21%, ΦII by 44% compared to control), changes in non-photochemical fluorescence quenching (NPQ), and a substantial drop in Hill reaction activity (by 73%), especially under 1000 μM DCF, were found. Limitation of electron transport through photosystem II was confirmed by increased fluorescence signals in steps J and I (by 50% and 23%, respectively, under 1000 μM DCF) in OJIP fluorescence transient. Photosystem I exhibited changes only in the redox state of P700 reaction centres (decrease in Pm by 10%, increase in reduced P700 by 5% under 1000 μM DCF). Similarly, RuBisCO activity was only lowered by 30% under 1000 μM DCF. In contrast, a significant increase in reactive oxygen and nitrogen species (by 116% and 157%, respectively) was observed under 10 μM DCF, and lipid peroxidation increased even at 1 μM DCF (by nearly seven times compared to the control). Results demonstrate the ability of environmentally relevant DCF concentrations to induce oxidative stress in isolated duckweed chloroplasts; however, photosynthetic processes were affected considerably only by the highest DCF treatments.
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Affiliation(s)
- Markéta Hájková
- Department of Plant Physiology and Anatomy, Institute of Experimental Biology, Faculty of Science, Masaryk University Brno, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Marie Kummerová
- Department of Plant Physiology and Anatomy, Institute of Experimental Biology, Faculty of Science, Masaryk University Brno, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Štěpán Zezulka
- Department of Plant Physiology and Anatomy, Institute of Experimental Biology, Faculty of Science, Masaryk University Brno, Kotlářská 2, 611 37 Brno, Czech Republic.
| | - Petr Babula
- Department of Physiology, Faculty of Medicine, Masaryk University Brno, Kamenice 753/5, 625 00 Brno, Czech Republic.
| | - Peter Váczi
- Department of Plant Physiology and Anatomy, Institute of Experimental Biology, Faculty of Science, Masaryk University Brno, Kotlářská 2, 611 37 Brno, Czech Republic.
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Jureczko M, Przystaś W. Ecotoxicity risk of presence of two cytostatic drugs: Bleomycin and vincristine and their binary mixture in aquatic environment. Ecotoxicol Environ Saf 2019; 172:210-215. [PMID: 30710771 DOI: 10.1016/j.ecoenv.2019.01.074] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 12/21/2018] [Accepted: 01/18/2019] [Indexed: 05/21/2023]
Abstract
Cytostatic drugs have become one of the greatest environmental threats. They occur in surface, ground and even drinking water. Their key emission sources are hospital effluents, municipal wastewater, as well as drug manufacturers and their effluents. These compounds are extremely stable in natural waters and they are not significantly removed during wastewater treatment, because they are resistant to biodegradation. The aim of this work was to establish possible negative effects of chosen cytostatics: bleomycin and vincristine on the three trophic levels of surface waters. A single agent acute toxicity test was conducted on representatives of the producer - an aquatic freshwater plant Lemna minor, the consumer - crustaceans Daphnia magna, and the decomposer - bacteria Pseudomonas putida. Binary mixture tests were performed according to the Concentration Addition, Response Additivity, and Independent Action models. Both substances had a different effect on the tested organisms; bleomycin could be classified as a very toxic, while vincristine as a toxic water pollutant. Half maximal effective concentration (EC50) values designed in the presented single agent acute toxicity studies are < 10 mg/L in all the tests with bleomycin as well as vincristine conducted on L. minor. In tests with vincristine performed on D. magna and P. putida EC50 > 100 mg/L. The highest toxicity is demonstrated by bleomycin towards the aquatic freshwater plant (EC50 = 0.2 mg/L). The binary mixture of the tested chemicals showed antagonistic effects of environmental concern.
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Affiliation(s)
- Marcelina Jureczko
- Environmental Biotechnology Department, Faculty of Energy and Environmental Engineering, The Silesian University of Technology, Akademicka 2 A Str., 44-100 Gliwice, Poland.
| | - Wioletta Przystaś
- Environmental Biotechnology Department, Faculty of Energy and Environmental Engineering, The Silesian University of Technology, Akademicka 2 A Str., 44-100 Gliwice, Poland; The Biotechnology Centre, The Silesian University of Technology, Krzywoustego 8 St., 44-100 Gliwice, Poland.
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50
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Ziegler P, Sree KS, Appenroth KJ. Duckweed biomarkers for identifying toxic water contaminants? Environ Sci Pollut Res Int 2019; 26:14797-14822. [PMID: 30397749 DOI: 10.1007/s11356-018-3427-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
Surface or ground waters can be contaminated with numerous toxic substances. The duckweeds Lemna minor and Lemna gibba are widely used for assaying waterborne toxicity to higher plants in terms of growth inhibition and photosynthetic pigment reduction. These tests cannot, however, in themselves determine the nature of the agents responsible for toxicity. Morphological, developmental, physiological, biochemical, and genetic responses of duckweeds to exposure to toxic water contaminants constitute biomarkers of toxic effect. In principle, the very detection of these biomarkers should enable the contaminants having elicited them (and being responsible for the toxicity) to be identified. However, in practice, this is severely compromised by insufficient specificity of biomarkers for their corresponding toxicants and by the lack of documentation of biomarker/toxin relationships. The present contribution illustrates the difficulties of using known water contaminant-related duckweed biomarkers to identify toxins, and discusses possibilities for achieving this goal.
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Affiliation(s)
- Paul Ziegler
- Department of Plant Physiology, University of Bayreuth, Universitätsstr. 30, 95440, Bayreuth, Germany.
| | - Kandregula Sowjanya Sree
- Department of Environmental Science, Central University of Kerala, Tejaswini Hills, Periye, 671316, India
| | - Klaus-Jürgen Appenroth
- Matthias-Schleiden Institute, Department of Plant Physiology, Friedrich-Schiller-University Jena, Dornburger Str. 159, 07743, Jena, Germany
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