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Xie S, Wang W, Li N, Wen C, Zhu S, Luo X. Effect of Drying-Rewetting cycles on the metal adsorption and tolerance of natural biofilms. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 327:116922. [PMID: 36462490 DOI: 10.1016/j.jenvman.2022.116922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 11/15/2022] [Accepted: 11/27/2022] [Indexed: 06/17/2023]
Abstract
Drying-rewetting (D-RW) cycles can induce changes in biofilms by forcing the microbial community to tolerate and adapt to environmental pressure. Existing studies have mostly focused on the impact of D-RW cycles on the microbial community structure, and little attention has been paid to how D-RW cycles may change the biofilm tolerance and adsorption of heavy metals. We experimentally evaluated the effect of repeated D-RW cycles on the Cd2+ and Pb2+ adsorption and tolerance of biofilms. The equilibrium adsorption capacity of the biofilm decreased as the number of D-RW cycles was increased, which was attributed to a change in affinity between the biofilm and metal ions. For a binary metal system, the D-RW cycles affected the competitive adsorption of Cd2+ and Pb2+ by the biofilm. A synergistic effect was observed with one and three D-RW cycles, while an antagonistic effect was observed for the control film and five D-RW cycles. The tolerance of the biofilm to Cd2+ and Pb2+ increased with the number of D-RW cycles. The stress from the D-RW cycles may have increased the relative abundance of drought-tolerant bacteria, which altered the biofilm functions and thus indirectly affected the heavy metal adsorption capacity.
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Affiliation(s)
- Shanshan Xie
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China
| | - Wenwen Wang
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China
| | - Nihong Li
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China
| | - Chen Wen
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China
| | - Shijun Zhu
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China
| | - Xia Luo
- Institute of International Rivers and Eco-Security, Yunnan University, Kunming 650500, China; Yunnan Key Laboratory of International Rivers and Transboundary Eco-Security, Kunming 650500, China.
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2
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Rilstone V, Vignale L, Craddock J, Cushing A, Filion Y, Champagne P. The role of antibiotics and heavy metals on the development, promotion, and dissemination of antimicrobial resistance in drinking water biofilms. CHEMOSPHERE 2021; 282:131048. [PMID: 34470147 DOI: 10.1016/j.chemosphere.2021.131048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 05/23/2021] [Accepted: 05/26/2021] [Indexed: 06/13/2023]
Abstract
Antimicrobial resistance (AMR), as well as the development of biofilms in drinking water distribution systems (DWDSs), have become an increasing concern for public health and management. As bulk water travels from source to tap, it may accumulate contaminants of emerging concern (CECs) such as antibiotics and heavy metals. When these CECs and other selective pressures, such as disinfection, pipe material, temperature, pH, and nutrient availability interact with planktonic cells and, consequently, DWDS biofilms, AMR is promoted. The purpose of this review is to highlight the mechanisms by which AMR develops and is disseminated within DWDS biofilms. First, this review will lay a foundation by describing how DWDS biofilms form, as well as their basic intrinsic and acquired resistance mechanisms. Next, the selective pressures that further induce AMR in DWDS biofilms will be elaborated. Then, the pressures by which antibiotic and heavy metal CECs accumulate in DWDS biofilms, their individual resistance mechanisms, and co-selection are described and discussed. Finally, the known human health risks and current management strategies to mitigate AMR in DWDSs will be presented. Overall, this review provides critical connections between several biotic and abiotic factors that influence and induce AMR in DWDS biofilms. Implications are made regarding the importance of monitoring and managing the development, promotion, and dissemination of AMR in DWDS biofilms.
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Affiliation(s)
- Victoria Rilstone
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada
| | - Leah Vignale
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada
| | - Justine Craddock
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada
| | - Alexandria Cushing
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada
| | - Yves Filion
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada.
| | - Pascale Champagne
- Beaty Water Research Centre, Department of Civil Engineering, Union Street, Queen's University, Kingston, K7L 3Z6, Canada; Institut National de la Recherche Scientifique (INRS), 490 rue de la Couronne, Québec City, Québec, G1K 9A9, Canada
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3
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Bonnineau C, Artigas J, Chaumet B, Dabrin A, Faburé J, Ferrari BJD, Lebrun JD, Margoum C, Mazzella N, Miège C, Morin S, Uher E, Babut M, Pesce S. Role of Biofilms in Contaminant Bioaccumulation and Trophic Transfer in Aquatic Ecosystems: Current State of Knowledge and Future Challenges. REVIEWS OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 253:115-153. [PMID: 32166435 DOI: 10.1007/398_2019_39] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In freshwater environments, microbial assemblages attached to submerged substrates play an essential role in ecosystem processes such as primary production, supported by periphyton, or organic matter decomposition, supported by microbial communities attached to leaf litter or sediments. These microbial assemblages, also called biofilms, are not only involved in nutrients fluxes but also in contaminants dynamics. Biofilms can accumulate metals and organic contaminants transported by the water flow and/or adsorbed onto substrates. Furthermore, due to their high metabolic activity and their role in aquatic food webs, microbial biofilms are also likely to influence contaminant fate in aquatic ecosystems. In this review, we provide (1) a critical overview of the analytical methods currently in use for detecting and quantifying metals and organic micropollutants in microbial biofilms attached to benthic substrata (rocks, sediments, leaf litter); (2) a review of the distribution of those contaminants within aquatic biofilms and the role of these benthic microbial communities in contaminant fate; (3) a set of future challenges concerning the role of biofilms in contaminant accumulation and trophic transfers in the aquatic food web. This literature review highlighted that most knowledge on the interaction between biofilm and contaminants is focused on contaminants dynamics in periphyton while technical limitations are still preventing a thorough estimation of contaminants accumulation in biofilms attached to leaf litter or sediments. In addition, microbial biofilms represent an important food resource in freshwater ecosystems, yet their role in dietary contaminant exposure has been neglected for a long time, and the importance of biofilms in trophic transfer of contaminants is still understudied.
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Affiliation(s)
| | - Joan Artigas
- Université Clermont Auvergne, CNRS, Laboratoire Microorganismes: Génome et Environnement (LMGE), Clermont-Ferrand, France
| | | | | | - Juliette Faburé
- Université Paris-Saclay, INRAE, AgroParisTech, UMR ECOSYS, Versailles, France
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4
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Labadie P, Alligant S, Berthe T, Budzinski H, Bigot-Clivot A, Collard F, Dris R, Gasperi J, Guigon E, Petit F, Rocher V, Tassin B, Tramoy R, Treilles R. Contaminants of Emerging Concern in the Seine River Basin: Overview of Recent Research. THE HANDBOOK OF ENVIRONMENTAL CHEMISTRY 2020. [DOI: 10.1007/698_2019_381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
AbstractFor over 30 years, the sources and the transfer dynamics of micropollutants have been investigated in the PIREN-Seine programme. Recent works included a wide range of chemicals and biological contaminants of emerging concern (i.e. contaminants whose occurrence, fate and impact are scarcely documented). This chapter presents a brief overview of research recently conducted on contaminants as diverse as macro- and microplastics, poly- and perfluoroalkyl substances (PFASs), pathogenic protozoa, antibiotics and the associated antibiotic resistance. The multiscalar study of plastics and PFASs at a large spatial scale is rare; the results produced in recent years on the Seine River catchment have provided an original contribution to the investigation of the dynamics of these contaminants in urban environments. The results also highlighted that pathogenic protozoa are ubiquitous in the Seine River basin and that the contamination of bivalves such as Dreissena polymorpha could reflect the ambient biological contamination of watercourses. The widespread occurrence of antibiotics in the Seine River was demonstrated, and it was shown that the resistome of biofilms in highly urbanised rivers constitutes a microenvironment where genetic support for antibiotic resistance (clinical integrons) and resistance genes for trace metals are concentrated.
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Barjhoux I, Fechner LC, Lebrun JD, Anzil A, Ayrault S, Budzinski H, Cachot J, Charron L, Chaumot A, Clérandeau C, Dedourge-Geffard O, Faburé J, François A, Geffard O, George I, Labadie P, Lévi Y, Munoz G, Noury P, Oziol L, Quéau H, Servais P, Uher E, Urien N, Geffard A. Application of a multidisciplinary and integrative weight-of-evidence approach to a 1-year monitoring survey of the Seine River. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:23404-23429. [PMID: 27272921 DOI: 10.1007/s11356-016-6993-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/26/2016] [Indexed: 06/06/2023]
Abstract
Quality assessment of environments under high anthropogenic pressures such as the Seine Basin, subjected to complex and chronic inputs, can only be based on combined chemical and biological analyses. The present study integrates and summarizes a multidisciplinary dataset acquired throughout a 1-year monitoring survey conducted at three workshop sites along the Seine River (PIREN-Seine program), upstream and downstream of the Paris conurbation, during four seasonal campaigns using a weight-of-evidence approach. Sediment and water column chemical analyses, bioaccumulation levels and biomarker responses in caged gammarids, and laboratory (eco)toxicity bioassays were integrated into four lines of evidence (LOEs). Results from each LOE clearly reflected an anthropogenic gradient, with contamination levels and biological effects increasing from upstream to downstream of Paris, in good agreement with the variations in the structure and composition of bacterial communities from the water column. Based on annual average data, the global hazard was summarized as "moderate" at the upstream station and as "major" at the two downstream ones. Seasonal variability was also highlighted; the winter campaign was least impacted. The model was notably improved using previously established reference and threshold values from national-scale studies. It undoubtedly represents a powerful practical tool to facilitate the decision-making processes of environment managers within the framework of an environmental risk assessment strategy.
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Affiliation(s)
- Iris Barjhoux
- UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France.
| | - Lise C Fechner
- UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France
- AgroParisTech, 75005, Paris, France
| | - Jérémie D Lebrun
- UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France
| | - Adriana Anzil
- Laboratoire Ecologie des Systèmes Aquatiques (ESA), Université Libre de Bruxelles, Brussels, Belgium
| | - Sophie Ayrault
- UMR 8212 CNRS CEA UVSQ Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Institut Pierre Simon Laplace (IPSL), Gif-sur-Yvette, France
| | - Hélène Budzinski
- UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France
| | - Jérôme Cachot
- UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France
| | - Laetitia Charron
- UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France
| | - Arnaud Chaumot
- UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France
| | - Christelle Clérandeau
- UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France
| | - Odile Dedourge-Geffard
- UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France
| | - Juliette Faburé
- UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France
- AgroParisTech, 75005, Paris, France
| | - Adeline François
- UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France
| | - Olivier Geffard
- UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France
| | - Isabelle George
- Laboratoire Ecologie des Systèmes Aquatiques (ESA), Université Libre de Bruxelles, Brussels, Belgium
| | - Pierre Labadie
- UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France
| | - Yves Lévi
- Ecologie Systématique Evolution, University Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Orsay, France
| | - Gabriel Munoz
- UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC), Université de Bordeaux, Pessac, France
| | - Patrice Noury
- UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France
| | - Lucie Oziol
- Ecologie Systématique Evolution, University Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Orsay, France
| | - Hervé Quéau
- UR Milieux Aquatiques, Ecologie et Pollutions (MAEP), Laboratoire d'écotoxicologie, Irstea, Villeurbanne, France
| | - Pierre Servais
- Laboratoire Ecologie des Systèmes Aquatiques (ESA), Université Libre de Bruxelles, Brussels, Belgium
| | - Emmanuelle Uher
- UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France
| | - Nastassia Urien
- UR Hydrosystèmes et bioprocédés Antony (HBAN), Irstea, 1 rue Pierre-Gilles de Gennes, CS 10030, 97261, Antony Cedex, France
| | - Alain Geffard
- UMR-I 02 Stress Environnementaux et Biosurveillance des milieux aquatiques (SEBIO), UFR SEN, Université de Reims Champagne-Ardenne, Moulin de la Housse, BP 1039, Reims, France
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Lehmann K, Bell T, Bowes MJ, Amos GCA, Gaze WH, Wellington EMH, Singer AC. Trace levels of sewage effluent are sufficient to increase class 1 integron prevalence in freshwater biofilms without changing the core community. WATER RESEARCH 2016; 106:163-170. [PMID: 27710799 DOI: 10.1016/j.watres.2016.09.035] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/19/2016] [Accepted: 09/19/2016] [Indexed: 06/06/2023]
Abstract
Most river systems are impacted by sewage effluent. It remains unclear if there is a lower threshold to the concentration of sewage effluent that can significantly change the structure of the microbial community and its mobile genetic elements in a natural river biofilm. We used novel in situ mesocosms to conduct replicated experiments to study how the addition of low-level concentrations of sewage effluent (nominally 2.5 ppm) affects river biofilms in two contrasting Chalk river systems, the Rivers Kennet and Lambourn (high/low sewage impact, respectively). 16S sequencing and qPCR showed that community composition was not significantly changed by the sewage effluent addition, but class 1 integron prevalence (Lambourn control 0.07% (SE ± 0.01), Lambourn sewage effluent 0.11% (SE ± 0.006), Kennet control 0.56% (SE ± 0.01), Kennet sewage effluent 1.28% (SE ± 0.16)) was significantly greater in the communities exposed to sewage effluent than in the control flumes (ANOVA, F = 5.11, p = 0.045) in both rivers. Furthermore, the difference in integron prevalence between the Kennet control (no sewage effluent addition) and Kennet sewage-treated samples was proportionally greater than the difference in prevalence between the Lambourn control and sewage-treated samples (ANOVA (interaction between treatment and river), F = 6.42, p = 0.028). Mechanisms that lead to such differences could include macronutrient/biofilm or phage/bacteria interactions. Our findings highlight the role that low-level exposure to complex polluting mixtures such as sewage effluent can play in the spread of antibiotic resistance genes. The results also highlight that certain conditions, such as macronutrient load, might accelerate spread of antibiotic resistance genes.
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Affiliation(s)
- Katja Lehmann
- NERC Centre for Ecology & Hydrology, Wallingford, OX10 8BB, UK.
| | - Thomas Bell
- Imperial College London, Department of Life Sciences, Silwood Park Campus, SL5 7PY, UK
| | - Michael J Bowes
- NERC Centre for Ecology & Hydrology, Wallingford, OX10 8BB, UK
| | | | - Will H Gaze
- European Centre for Environment and Human Health, University of Exeter Medical School, Knowledge Spa, Royal Cornwall Hospital, Truro, UK
| | | | - Andrew C Singer
- NERC Centre for Ecology & Hydrology, Wallingford, OX10 8BB, UK
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Rotter S, Gunold R, Mothes S, Paschke A, Brack W, Altenburger R, Schmitt-Jansen M. Pollution-Induced Community Tolerance To Diagnose Hazardous Chemicals in Multiple Contaminated Aquatic Systems. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015. [PMID: 26196040 DOI: 10.1021/acs.est.5b01297] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Aquatic ecosystems are often contaminated with large numbers of chemicals, which cannot be sufficiently addressed by chemical target analyses. Effect-directed analysis (EDA) enables the identification of toxicants in complex contaminated environmental samples. This study suggests pollution-induced community tolerance (PICT) as a confirmation tool for EDA to identify contaminants which actually impact on local communities. The effects of three phytotoxic compounds local periphyton communities, cultivated at a reference (R-site) and a polluted site (P-site), were assessed to confirm the findings of a former EDA study on sediments. The sensitivities of R- and P-communities to prometryn, tributyltin (TBT) and N-phenyl-2-naphthylamine (PNA) were quantified in short-term toxicity tests and exposure concentrations were determined. Prometryn and PNA concentrations were significantly higher at the P-site, whereas TBT concentrations were in the same range at both sites. Periphyton communities differed in biomass, but algal class composition and diatom diversity were similar. Community tolerance of P-communities was significantly enhanced for prometryn, but not for PNA and TBT, confirming site-specific effects on local periphyton for prometryn only. Thus, PICT enables in situ effect confirmation of phytotoxic compounds at the community level and seems to be suitable to support confirmation and enhance ecological realism of EDA.
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Affiliation(s)
- Stefanie Rotter
- †Department Bioanalytical Ecotoxicology, ‡Department of Ecological Chemistry, §Department of Analytical Chemistry, ∥Department of Effect-Directed Analysis, Helmholtz-Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Roman Gunold
- †Department Bioanalytical Ecotoxicology, ‡Department of Ecological Chemistry, §Department of Analytical Chemistry, ∥Department of Effect-Directed Analysis, Helmholtz-Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Sibylle Mothes
- †Department Bioanalytical Ecotoxicology, ‡Department of Ecological Chemistry, §Department of Analytical Chemistry, ∥Department of Effect-Directed Analysis, Helmholtz-Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Albrecht Paschke
- †Department Bioanalytical Ecotoxicology, ‡Department of Ecological Chemistry, §Department of Analytical Chemistry, ∥Department of Effect-Directed Analysis, Helmholtz-Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Werner Brack
- †Department Bioanalytical Ecotoxicology, ‡Department of Ecological Chemistry, §Department of Analytical Chemistry, ∥Department of Effect-Directed Analysis, Helmholtz-Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Rolf Altenburger
- †Department Bioanalytical Ecotoxicology, ‡Department of Ecological Chemistry, §Department of Analytical Chemistry, ∥Department of Effect-Directed Analysis, Helmholtz-Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
| | - Mechthild Schmitt-Jansen
- †Department Bioanalytical Ecotoxicology, ‡Department of Ecological Chemistry, §Department of Analytical Chemistry, ∥Department of Effect-Directed Analysis, Helmholtz-Centre for Environmental Research - UFZ, Permoserstrasse 15, 04318 Leipzig, Germany
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Lebrun JD, Geffard O, Urien N, François A, Uher E, Fechner LC. Seasonal variability and inter-species comparison of metal bioaccumulation in caged gammarids under urban diffuse contamination gradient: implications for biomonitoring investigations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 511:501-508. [PMID: 25577736 DOI: 10.1016/j.scitotenv.2014.12.078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 12/16/2014] [Accepted: 12/22/2014] [Indexed: 06/04/2023]
Abstract
Although caging of Gammarus species offers promising lines of inquiry to monitor metal bioavailability in freshwaters, the interspecies responsiveness to metal exposures is still unclear. In addition, abiotic factors inherent to transplantation can hamper the interpretation of field bioaccumulation data. To assess the relevance of using gammarids as biomonitors, we investigated the seasonal influence on metal bioaccumulation in two common species, Gammarus pulex and Gammarus fossarum. During four seasons, caged gammarids were deployed on three sites along the Seine River exhibiting a diffuse gradient of multi-metal contamination: a site upstream and two sites downstream from the Paris megacity. For each seasonal deployment, metal concentrations in animals were determined after 7d-exposure in situ (Ag, Cd, Co, Cu, Mn, Ni, Pb and Zn). Results show that the seasonal patterns of metal contaminations are similar between both Gammarus species, and closely related to the river axis' contamination gradient. Statistical analyses indicate that bioaccumulation of essential metals in both species is influenced by season, especially by water temperature. This highlights the necessity to consider this climatic factor inherent to the deployment period for a reliable interpretation of bioaccumulation data in the field. The comparison of accumulation factors suggests that these two species coming from different geochemical origins display similar abilities to internalize metals. This generic responsiveness of caged gammarids supports their use as sentinel organisms to quantify low spatiotemporal variations in metal bioavailabilities.
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Affiliation(s)
- Jérémie D Lebrun
- Irstea, UR HBAN - Ecotoxicology, CS 10030, F-92761 Antony Cedex, France; FIRE, FR-3020, 75005 Paris, France.
| | - Olivier Geffard
- Irstea, UR MAEP - Ecotoxicology, CS 70077, F-69626 Villeurbanne Cedex, France
| | - Nastassia Urien
- Irstea, UR HBAN - Ecotoxicology, CS 10030, F-92761 Antony Cedex, France; FIRE, FR-3020, 75005 Paris, France
| | - Adeline François
- Irstea, UR MAEP - Ecotoxicology, CS 70077, F-69626 Villeurbanne Cedex, France
| | - Emmanuelle Uher
- Irstea, UR HBAN - Ecotoxicology, CS 10030, F-92761 Antony Cedex, France; FIRE, FR-3020, 75005 Paris, France
| | - Lise C Fechner
- Irstea, UR HBAN - Ecotoxicology, CS 10030, F-92761 Antony Cedex, France; FIRE, FR-3020, 75005 Paris, France; AgroParisTech, F-75005 Paris, France
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9
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Faburé J, Dufour M, Autret A, Uher E, Fechner LC. Impact of an urban multi-metal contamination gradient: metal bioaccumulation and tolerance of river biofilms collected in different seasons. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 159:276-289. [PMID: 25576823 DOI: 10.1016/j.aquatox.2014.12.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 12/01/2014] [Accepted: 12/18/2014] [Indexed: 06/04/2023]
Abstract
The aim of this study was to investigate the repeatability and seasonal variability of the biological response of river biofilms chronically exposed to a multi-metal pressure in an urban contamination gradient. Biofilms were grown on immersed plastic membranes at three sites on the Seine river upstream (site 1) and downstream (sites 2 and 3) from Paris (France). They were collected in four different seasons (autumn, spring, summer and winter). Biofilm tolerance to Cu, Ni, Pb and Zn was measured using a PICT (Pollution-Induced Community Tolerance) approach with a previously developed short-term toxicity test based on β-glucosidase (heterotrophic) activity. Metal concentrations in the river and also in the biofilm samples (total and non-exchangeable bioaccumulated metals) were also monitored. Biofilm-accumulated metal concentrations reflected the increase of the multi-metal exposure along the urban gradient. These concentrations were strongly correlated with dissolved and particulate organic carbon and with the total metal fraction in the river water, which recalls the significant influence of the environmental parameters on metal uptake processes in river biofilms. Overall, natural biofilms allow monitoring water quality by integrating the variations of a diffuse metal contamination overtime. Tolerance levels globally increased from site 1 to site 3 reflecting the metal pollution gradient measured in the river water collected at the three sites. Cu tolerance tended to increase during warm seasons but no clear seasonal tendency could be found for Ni, Pb and Zn. Furthermore, principal component analysis clearly discriminated samples collected upstream (site 1) from samples collected downstream (sites 2 and 3) along the first principal component which was correlated to the metal gradient. Samples collected in winter were also separated from the others along the second principal component correlated to parameters like water temperature and Total Suspended Solids concentration. This study shows that chronic in situ exposure to environmental metal concentrations has a significant impact on natural biofilms. Biofilm tolerance to metals and biofilm metal bioaccumulation both reflect metal exposure levels although they remain low when compared to Environmental Quality Standards from the European Water Framework Directive. Yet temperature appears as an important environmental variable shaping community structure and response to toxic exposure which shows that the sampling date is an important parameter to consider when using natural river biofilms to assess the impacts of urban pressure.
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Affiliation(s)
- Juliette Faburé
- Irstea Antony - Unité de Recherche Hydrosystèmes et Bioprocédés, 1 rue Pierre-Gilles de Gennes, CS 10030, F 92761 Antony Cedex, France; FIRE, FR-3020, 4 Place Jussieu, 75005 Paris, France; AgroParisTech, F-75005 Paris, France
| | - Marine Dufour
- Irstea Antony - Unité de Recherche Hydrosystèmes et Bioprocédés, 1 rue Pierre-Gilles de Gennes, CS 10030, F 92761 Antony Cedex, France; FIRE, FR-3020, 4 Place Jussieu, 75005 Paris, France
| | - Armelle Autret
- Irstea Antony - Unité de Recherche Hydrosystèmes et Bioprocédés, 1 rue Pierre-Gilles de Gennes, CS 10030, F 92761 Antony Cedex, France; FIRE, FR-3020, 4 Place Jussieu, 75005 Paris, France; CNRS UMR6143 M2C (Morphodynamique continentale et côtière) - INSU - Université de Rouen, France
| | - Emmanuelle Uher
- Irstea Antony - Unité de Recherche Hydrosystèmes et Bioprocédés, 1 rue Pierre-Gilles de Gennes, CS 10030, F 92761 Antony Cedex, France; FIRE, FR-3020, 4 Place Jussieu, 75005 Paris, France
| | - Lise C Fechner
- Irstea Antony - Unité de Recherche Hydrosystèmes et Bioprocédés, 1 rue Pierre-Gilles de Gennes, CS 10030, F 92761 Antony Cedex, France; FIRE, FR-3020, 4 Place Jussieu, 75005 Paris, France; AgroParisTech, F-75005 Paris, France.
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Yan J, Liu J, Ma M. In situ variations and relationships of water quality index with periphyton function and diversity metrics in Baiyangdian Lake of China. ECOTOXICOLOGY (LONDON, ENGLAND) 2014; 23:495-505. [PMID: 24557602 DOI: 10.1007/s10646-014-1199-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/16/2014] [Indexed: 06/03/2023]
Abstract
The variations and associations of abiotic and biotic variables in Baiyangdian Lake, China, were analyzed in situ. Abiotic variables included eleven water quality parameters, and were characterized by water quality index (WQI). Biotic variables included periphyton function and diversity metrics. WQI differed in different seasons at sampling sites and the highest value of WQI was observed in October 2009. Periphyton function metrics, expressed by extracellular enzyme activities of alkaline phosphatase, β-glucosidase and leucine aminopeptidase, gross primary productivity and daily respiration rate, and diversity indices, in terms of Shannon diversity index and Berger-Parker abundance index, showed significantly temporal and spatial variations. Regression linear analysis illustrated a fairly good correlation of WQI with periphyton function and diversity indices, Shannon diversity index was the best correlated with WQI (r = 0.904, P < 0.01), followed by leucine aminopeptidase (r = -0.847, P < 0.01) and Berger-Parker abundance index (r = -0.840, P < 0.01), alkaline phosphatase, β-glucosidase and gross primary productivity also showed a good inverse correlation with WQI. Redundancy analysis suggested that eleven environmental variables explained a significant amount of the variation in the periphyton community data. The study was helpful for us to understand chemical and ecological status of water quality, and give us messages for monitoring water quality accurately.
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Affiliation(s)
- Jinxia Yan
- State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, No. 19 Xinjiekou-waida Street, Haidian District, Beijing, 100875, China
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11
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Pu G, Tong J, Su A, Ma X, Du J, Lv Y, Tian X. Adaptation of microbial communities to multiple stressors associated with litter decomposition of Pterocarya stenoptera. J Environ Sci (China) 2014; 26:1001-1013. [PMID: 25079630 DOI: 10.1016/s1001-0742(13)60542-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 10/23/2013] [Accepted: 11/07/2013] [Indexed: 06/03/2023]
Abstract
To understand the further impacts of multiple stressors in freshwater, we investigated the effects of heavy metal (HM, Cu and Zn) and nutrient enrichments (nitrogen and phosphorus, NP) on microbial decomposition of Pterocarya stenoptera litter and the associated extracellular enzyme activities and microbial biomass with microcosms. Results showed that the decomposition rates were slower in the polluted stream waters than those in the unpolluted ones, which corresponded to lower microbial biomass and integrated enzyme activities of cellulose and β-glucosidase. The decomposition rates were accelerated at low HM level, which was associated with the stimulated enzyme activities of hydrolytic enzymes or was stimulated by both NP levels in polluted stream waters. In particular, the hydrolase enzyme activities of microbial communities in polluted stream waters were stimulated by low HM level, suggesting that low HM level-stimulated litter decomposition may be due to the increased enzymatic activities. When microbial communities were exposed to HM and NP simultaneously, the inhibitory effect (in unpolluted stream waters) or the stimulated effect (in polluted stream waters) of low HM concentration was enhanced and attenuated, respectively, which suggests that the NP antagonistic effect against HM toxicity on litter decomposition may contribute to the litter-associated extracellular enzyme activities. These results suggest that the co-occurrence of HM and NP may have antagonistic effects on stream ecosystem functioning.
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Affiliation(s)
- Gaozhong Pu
- School of Life Science, Nanjing University, Nanjing 210093, China; Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, Guilin 541006, China.
| | - Jingjing Tong
- School of Life Science, Nanjing University, Nanjing 210093, China
| | - Aimeng Su
- School of Life Science, Nanjing University, Nanjing 210093, China
| | - Xu Ma
- School of Life Science, Nanjing University, Nanjing 210093, China
| | - Jingjing Du
- School of Life Science, Nanjing University, Nanjing 210093, China
| | - Yanna Lv
- School of Life Science, Nanjing University, Nanjing 210093, China
| | - Xingjun Tian
- School of Life Science, Nanjing University, Nanjing 210093, China.
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12
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Fechner LC, Gourlay-Francé C, Tusseau-Vuillemin MH. Linking community tolerance and structure with low metallic contamination: a field study on 13 biofilms sampled across the Seine river basin. WATER RESEARCH 2014; 51:152-162. [PMID: 24429101 DOI: 10.1016/j.watres.2013.12.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 10/02/2013] [Accepted: 12/01/2013] [Indexed: 06/03/2023]
Abstract
It is difficult to assess the biological consequences of diffuse water contamination by micropollutants which are present in rivers at low, even sublethal levels. River biofilms, which respond quickly to changes of environmental parameters, are good candidates to acquire knowledge on the response of aquatic organisms to diffuse chemical contamination in the field. The study was designed as an attempt to link biofilm metal tolerance and metallic contamination in a field survey covering 13 different sampling sites in the Seine river basin (north of France) with low contamination levels. Cd and Zn tolerance of heterotrophic communities was assessed using a short-term toxicity test based on β-glucosidase activity. Metal tolerance levels varied between sites but there was no obvious correlation between tolerance and corresponding water contamination levels for Cd and Zn. Indeed, metallic contamination at the sampling sites remained subtle when compared to water quality standards (only two sampling sites had either Zn or both Cu and Zn concentrations exceeding the Environmental Quality Standards set by the EU Water Framework Directive). Yet, multivariate analysis of the data using Partial Least Squares Regression revealed that both metallic and environmental parameters were important variables explaining the variability of metal tolerance levels. Automated Ribosomal Intergenic Spacer Analysis (ARISA) was also performed on both bacterial and eukaryotic biofilm communities from the 13 sampling sites. Multivariate analysis of ARISA fingerprints revealed that biofilms with similar tolerance levels have similar ARISA profiles. Those results confirm that river biofilms are potential indicators of low, diffuse contamination levels of aquatic systems.
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Affiliation(s)
- Lise C Fechner
- Irstea Antony - Unité de Recherche Hydrosystèmes et Bioprocédés (HBAN), 1 rue Pierre-Gilles de Gennes, CS 10030, F-92761 Antony Cedex, France; AgroParisTech, F-75005 Paris, France; FIRE, FR-3020, 4 Place Jussieu, 75005 Paris, France.
| | - Catherine Gourlay-Francé
- Irstea Antony - Unité de Recherche Hydrosystèmes et Bioprocédés (HBAN), 1 rue Pierre-Gilles de Gennes, CS 10030, F-92761 Antony Cedex, France; FIRE, FR-3020, 4 Place Jussieu, 75005 Paris, France
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13
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Fechner LC, Dufour M, Gourlay-Francé C. Pollution-induced community tolerance of freshwater biofilms: measuring heterotrophic tolerance to Pb using an enzymatic toxicity test. ECOTOXICOLOGY (LONDON, ENGLAND) 2012; 21:2123-2131. [PMID: 22729786 DOI: 10.1007/s10646-012-0964-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/07/2012] [Indexed: 06/01/2023]
Abstract
This study aims at investigating the impacts of Pb on freshwater biofilms with a pollution-induced community tolerance (PICT) approach using a recently developed short-term toxicity test based on β-glucosidase activity to measure biofilms' tolerance to Pb. We first investigated more closely the influence of the total suspended solids (TSS) concentrations of biofilm suspensions used for short-term toxicity tests performed to assess Pb tolerance. The Pb EC(50) values of four dilutions of the same biofilm suspension increased with their TSS concentrations. TSS-normalization allowed to obtain a unique measure of Pb tolerance, thus confirming that TSS-normalization of EC(50) values is a good means to estimate biofilm tolerance to Pb. The experiment was repeated with three different biofilm samples collected at different sites and dates. Second, biofilms were exposed to Pb (0, 1, 10 and 100 μg/L) for 3 weeks in microcosms to assess the impacts of Pb exposure on the communities. An increase in Pb tolerance was observed for the biofilm exposed to 100 μg/L. Automated Ribosomal Intergenic Spacer Analysis revealed modifications of bacterial and eukaryotic community structure with Pb exposure. Moreover, exposure to 100 μg/L Pb also led to an increase in Zn tolerance but not Cu tolerance. This study shows that tolerance acquisition to Pb can be detected after exposure to environmental concentrations of Pb using a PICT methodology and normalized EC(50) values as measures of Pb tolerance.
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Affiliation(s)
- Lise C Fechner
- Irstea, UR HBAN, 1 rue Pierre-Gilles de Gennes - CS 10030, 92761, Antony, France.
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Bere T, Tundisi JG. Effects of cadmium stress and sorption kinetics on tropical freshwater periphytic communities in indoor mesocosm experiments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2012; 432:103-112. [PMID: 22728297 DOI: 10.1016/j.scitotenv.2012.05.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 05/24/2012] [Accepted: 05/26/2012] [Indexed: 06/01/2023]
Abstract
Understanding the cause and effect relationship between stressors and biota is crucial for the effective management, restoration and preservation of aquatic systems. The objective of the present study was to assess the effects of five Cd concentrations on tropical periphyton community growth, Cd accumulation kinetics, as well as the effects of Cd on diatom community structure and composition. Natural periphyton communities were transferred to artificial stream chambers and exposed to Cd concentrations of 0.005, 0.01, 0.03, 0.05 and 0.1mg.L(-1). Metal accumulation (total and intracellular) in biofilms, dry weight and ash-free dry mass, growth rate, algal cell density and diatom community composition were analysed on samples collected after 1, 2 and 4 weeks of colonization. Periphyton growth and development were significantly lowered by Cd concentrations>0.03 mg.L(-1). High Cd accumulation capacity by periphyton was demonstrated with total and intracellular Cd content in biofilms reflecting the effects of concentrations of Cd in the culture media and exposure duration. Total and intracellular Cd content generally increased in treatments in the order 0.005<0.01<0.03<0.05<0.1mg.L(-1) at any sampling time with increasing level of accumulated Cd with duration of exposure in all the systems. Shifts in species composition (development of more resistant species like Achnanthidium minutissimum and reduction of sensitive ones like Diatoma vulgare, Navicula viridula and Navicula cryptocephala), decreases in species richness and diversity and morphological alterations (deformities) of diatom cells with increasing Cd concentration and exposure duration were observed. The results give valuable information on Cd impact of freshwater biofilms.
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Affiliation(s)
- Taurai Bere
- Instituto Internacional de Ecologia, Rua Bento Carlos, 750, Centro, São Carlos, São Paulo, Brazil.
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