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Kwidzińska K, Zalewska M, Aksmann A, Kobos J, Mazur-Marzec H, Caban M. Multi-biomarker response of cyanobacteria Synechocystis salina and Microcystis aeruginosa to diclofenac. JOURNAL OF HAZARDOUS MATERIALS 2024; 471:134373. [PMID: 38678710 DOI: 10.1016/j.jhazmat.2024.134373] [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: 12/04/2023] [Revised: 02/14/2024] [Accepted: 04/19/2024] [Indexed: 05/01/2024]
Abstract
The cyanobacterial response to pharmaceuticals is less frequently investigated compared to green algae. Pharmaceuticals can influence not only the growth rate of cyanobacteria culture, but can also cause changes at the cellular level. The effect of diclofenac (DCF) as one of the for cyanobacteria has been rarely tested, and DCF has never been applied with cellular biomarkers. The aim of this work was to test the response of two unicellular cyanobacteria (Synechocystis salina and Microcystis aeruginosa) toward DCF (100 mg L-1) under photoautotrophic growth conditions. Such endpoints were analyzed as cells number, DCF uptake, the change in concentrations of photosynthetic pigments, the production of toxins, and chlorophyll a in vivo fluorescence. It was noted that during a 96 h exposure, cell proliferation was not impacted. Nevertheless, a biochemical response was observed. The increased production of microcystin was noted for M. aeruginosa. Due to the negligible absorption of DCF into cells, it is possible that the biochemical changes are induced by an external signal. The application of non-standard biomarkers demonstrates the effect of DCF on microorganism metabolism without a corresponding effect on biomass. The high resistance of cyanobacteria to DCF and the stimulating effect of DCF on the secretion of toxins raise concerns for environment biodiversity.
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Affiliation(s)
- Klaudia Kwidzińska
- University of Gdansk, Faculty of Chemistry, Department of Environmental Analysis, ul. Wita Stwosza 63, 80-308 Gdańsk, Poland.
| | - Martyna Zalewska
- University of Gdansk, Faculty of Biology, Department of Plant Experimental Biology and Biotechnology, ul. Wita Stwosza 59, 80-308 Gdańsk, Poland
| | - Anna Aksmann
- University of Gdansk, Faculty of Biology, Department of Plant Experimental Biology and Biotechnology, ul. Wita Stwosza 59, 80-308 Gdańsk, Poland
| | - Justyna Kobos
- University of Gdansk, Faculty of Oceanography and Geography, Department of Marine Biology and Biotechnology, al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland
| | - Hanna Mazur-Marzec
- University of Gdansk, Faculty of Oceanography and Geography, Department of Marine Biology and Biotechnology, al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland
| | - Magda Caban
- University of Gdansk, Faculty of Chemistry, Department of Environmental Analysis, ul. Wita Stwosza 63, 80-308 Gdańsk, Poland
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2
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Kidd KA, Backhaus T, Brodin T, Inostroza PA, McCallum ES. Environmental Risks of Pharmaceutical Mixtures in Aquatic Ecosystems: Reflections on a Decade of Research. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2024; 43:549-558. [PMID: 37530415 DOI: 10.1002/etc.5726] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 04/13/2023] [Accepted: 07/31/2023] [Indexed: 08/03/2023]
Abstract
Pharmaceuticals and personal care products (PPCPs) occur as variable mixtures in surface waters receiving discharges of human and animal wastes. A key question identified a decade ago is how to assess the effects of long-term exposures of these PPCP mixtures on nontarget organisms. We review the recent progress made on assessing the aquatic ecotoxicity of PPCP mixtures-with a focus on active pharmaceutical ingredients-and the challenges and research needs that remain. New knowledge has arisen from the use of whole-mixture testing combined with component-based approaches, and these studies show that mixtures often result in responses that meet the concentration addition model. However, such studies have mainly been done on individual species over shorter time periods, and longer-term, multispecies assessments remain limited. The recent use of targeted and nontargeted gene analyses has improved our understanding of the diverse pathways that are impacted, and there are promising new "read-across" methods that use mammalian data to predict toxicity in wildlife. Risk assessments remain challenging given the paucity of ecotoxicological and exposure data on PPCP mixtures. As such, the assessment of PPCP mixtures in aquatic environments should remain a priority given the potential for additive-as well as nontarget-effects in nontarget organisms. In addition, we need to improve our understanding of which species, life stages, and relevant endpoints are most sensitive to which types of PPCP mixtures and to expand our knowledge of environmental PPCP levels in regions of the globe that have been poorly studied to date. We recommend an increased use of new approach methodologies, in particular "omics," to advance our understanding of the molecular mechanics of mixture effects. Finally, we call for systematic research on the role of PPCP mixtures in the development of antimicrobial resistance. Environ Toxicol Chem 2024;43:549-558. © 2023 SETAC.
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Affiliation(s)
- Karen A Kidd
- Department of Biology, McMaster University, Hamilton, Ontario, Canada
- School of Earth, Environment and Society, McMaster University, Hamilton, Ontario, Canada
| | - Thomas Backhaus
- Department of Biological and Environmental Sciences, University of Gothenburg, Göteborg, Sweden
| | - Tomas Brodin
- Department of Wildlife, Fish & Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
| | - Pedro A Inostroza
- Department of Biological and Environmental Sciences, University of Gothenburg, Göteborg, Sweden
| | - Erin S McCallum
- Department of Wildlife, Fish & Environmental Studies, Swedish University of Agricultural Sciences, Umeå, Sweden
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3
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Ghedini G, Marshall DJ. Metabolic evolution in response to interspecific competition in a eukaryote. Curr Biol 2023:S0960-9822(23)00777-7. [PMID: 37392743 DOI: 10.1016/j.cub.2023.06.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/15/2023] [Accepted: 06/08/2023] [Indexed: 07/03/2023]
Abstract
Competition drives rapid evolution, which, in turn, alters the trajectory of ecological communities. These eco-evolutionary dynamics are increasingly well-appreciated, but we lack a mechanistic framework for identifying the types of traits that will evolve and their trajectories. Metabolic theory offers explicit predictions for how competition should shape the (co)evolution of metabolism and size, but these are untested, particularly in eukaryotes. We use experimental evolution of a eukaryotic microalga to examine how metabolism, size, and demography coevolve under inter- and intraspecific competition. We find that the focal species evolves in accordance with the predictions of metabolic theory, reducing metabolic costs and maximizing population carrying capacity via changes in cell size. The smaller-evolved cells initially had lower population growth rates, as expected from their hyper-allometric metabolic scaling, but longer-term evolution yielded important departures from theory: we observed improvements in both population growth rate and carrying capacity. The evasion of this trade-off arose due to the rapid evolution of metabolic plasticity. Lineages exposed to competition evolved more labile metabolisms that tracked resource availability more effectively than lineages that were competition-free. That metabolic evolution can occur is unsurprising, but our finding that metabolic plasticity also co-evolves rapidly is new. Metabolic theory provides a powerful theoretical basis for predicting the eco-evolutionary responses to changing resource regimes driven by global change. Metabolic theory needs also to be updated to incorporate the effects of metabolic plasticity on the link between metabolism and demography, as this likely plays an underappreciated role in mediating eco-evolutionary dynamics of competition.
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Affiliation(s)
- Giulia Ghedini
- Centre for Geometric Biology, School of Biological Sciences, Monash University, Clayton, VIC 3800, Australia.
| | - Dustin J Marshall
- Centre for Geometric Biology, School of Biological Sciences, Monash University, Clayton, VIC 3800, Australia
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4
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Vasantha Raman N, Gsell AS, Voulgarellis T, van den Brink NW, de Senerpont Domis LN. Moving beyond standard toxicological metrics: The effect of diclofenac on planktonic host-parasite interactions. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 254:106370. [PMID: 36516501 DOI: 10.1016/j.aquatox.2022.106370] [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: 04/01/2022] [Revised: 12/01/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
Pharmaceuticals are increasingly released into surface waters and therefore ubiquitous in aquatic systems. While pharmaceuticals are known to influence species interactions, their effect on host-parasite interactions is still underexplored despite potential ecosystem-level consequences. Here, we ask whether diclofenac, a widely used non-steroid anti-inflammatory drug, affects the interaction between a phytoplankton host (Staurastrum sp.; green alga) and its obligate fungal parasite (Staurastromyces oculus; chytrid fungus). We hypothesized that the effect of increasing diclofenac concentration on the host-parasite system depends on parasite exposure. We assessed acute and chronic effects of a wide range of diclofenac concentrations (0-150 mg/L) on host and parasite performance using a replicated long gradient design in batch cultures. Overall system response summarizing parameters related to all biotic components in an experimental unit i.e., number of bacteria and phytoplankton host cells along with photosynthetic yield (a measure of algal cell fitness), depended on diclofenac concentration and presence/absence of parasite. While host standing biomass decreased at diclofenac concentrations >10 mg/L in non-parasite-exposed treatments, it increased at ≥10 mg/L in parasite-exposed treatments since losses due to infection declined. During acute phase (0-48 h), diclofenac concentrations <0.1 mg/L had no effect on host net-production neither in parasite-exposed nor non-parasite-exposed treatments, but parasite infection ceased at 10 mg/L. During chronic phase (0-216 h), host net-production declined only at concentrations >10 mg/L in non-parasite-exposed cultures, while it was overall close to zero in parasite-exposed cultures. Our results suggest that chytrid parasites are more sensitive to diclofenac than their host, allowing a window of opportunity for growth of phytoplankton hosts, despite exposure to a parasite. Our work provides a first understanding about effects of a pharmaceutical on a host-parasite interaction beyond those defined by standard toxicological metrics.
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Affiliation(s)
- Nandini Vasantha Raman
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, Wageningen, PB 6708, the Netherlands.
| | - Alena S Gsell
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, Wageningen, PB 6708, the Netherlands
| | - Themistoklis Voulgarellis
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, Wageningen, PB 6708, the Netherlands
| | - Nico W van den Brink
- Division of Toxicology, Wageningen University & Research, Stippeneng 4, Wageningen, WE 6708, the Netherlands
| | - Lisette N de Senerpont Domis
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Droevendaalsesteeg 10, Wageningen, PB 6708, the Netherlands; Aquatic Ecology and Water Quality Management Group, Wageningen University & Research, Wageningen, the Netherlands; Pervasive Systems Research Group, Faculty of Electrical Engineering, Mathematics and Computer Science, University of Twente, the Netherlands; Department of Water Resources, Faculty of Geo-Information Science and Earth Observation, University of Twente, the Netherlands
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5
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Wlodkowic D, Czerw A, Karakiewicz B, Deptała A. Recent progress in cytometric technologies and their applications in ecotoxicology and environmental risk assessment. Cytometry A 2021; 101:203-219. [PMID: 34652065 DOI: 10.1002/cyto.a.24508] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/20/2021] [Accepted: 09/30/2021] [Indexed: 12/14/2022]
Abstract
Environmental toxicology focuses on identifying and predicting impact of potentially toxic anthropogenic chemicals on biosphere at various levels of biological organization. Presently there is a significant drive to gain deeper understanding of cellular and sub-cellular mechanisms of ecotoxicity. Most notable is increased focus on elucidation of cellular-response networks, interactomes, and greater implementation of cell-based biotests using high-throughput procedures, while at the same time decreasing the reliance on standard animal models used in ecotoxicity testing. This is aimed at discovery and interpretation of molecular pathways of ecotoxicity at large scale. In this regard, the applications of cytometry are perhaps one of the most fundamental prospective analytical tools for the next generation and high-throughput ecotoxicology research. The diversity of this modern technology spans flow, laser-scanning, imaging, and more recently, Raman as well as mass cytometry. The cornerstone advantages of cytometry include the possibility of multi-parameter measurements, gating and rapid analysis. Cytometry overcomes, thus, limitations of traditional bulk techniques such as spectrophotometry or gel-based techniques that average the results from pooled cell populations or small model organisms. Novel technologies such as cell imaging in flow, laser scanning cytometry, as well as mass cytometry provide innovative and tremendously powerful capabilities to analyze cells, tissues as well as to perform in situ analysis of small model organisms. In this review, we outline cytometry as a tremendously diverse field that is still vastly underutilized and often largely unknown in environmental sciences. The main motivation of this work is to highlight the potential and wide-reaching applications of cytometry in ecotoxicology, guide environmental scientists in the technological aspects as well as popularize its broader adoption in environmental risk assessment.
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Affiliation(s)
- Donald Wlodkowic
- The Neurotox Lab, School of Science, RMIT University, Melbourne, Victoria, Australia
| | - Aleksandra Czerw
- Department of Health Economics and Medical Law, Faculty of Health Sciences, Medical University of Warsaw, Warsaw, Poland
| | - Beata Karakiewicz
- Subdepartment of Social Medicine and Public Health, Department of Social Medicine, Pomeranian Medical University, Szczecin, Poland
| | - Andrzej Deptała
- Department of Cancer Prevention. Faculty of Health Sciences, Medical University of Warsaw, Warsaw, Poland
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Chalifour A, Walser JC, Pomati F, Fenner K. Temperature, phytoplankton density and bacteria diversity drive the biotransformation of micropollutants in a lake ecosystem. WATER RESEARCH 2021; 202:117412. [PMID: 34303164 DOI: 10.1016/j.watres.2021.117412] [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: 03/22/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
For most micropollutants (MPs) present in surface waters, such as pesticides and pharmaceuticals, the contribution of biotransformation to their overall removal from lake ecosystems is largely unknown. This study aims at empirically determining the biotransformation rate constants for 35 MPs at different periods of the year and depths of a meso-eutrophic lake. We then tested statistically the association of environmental parameters and microbial community composition with the biotransformation rate constants obtained. Biotransformation was observed for 14 out of 35 studied MPs for at least one sampling time. Large variations in biotransformation rate constants were observed over the seasons and between compounds. Overall, the transformation of MPs was mostly influenced by the lake's temperature, phytoplankton density and bacterial diversity. However, some individual MPs were not following the general trend or association with microorganism biomass. The antidepressant mianserin, for instance, was transformed in all experiments and depths, but did not show any relationship with measured environmental parameters, suggesting the importance of specific microorganisms in its transformation. The results presented here contribute to our understanding of the fate of MPs in surface waters and thus support improved risk assessment of contaminants in the environment.
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Affiliation(s)
- Annie Chalifour
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland.
| | - Jean-Claude Walser
- Department of Environmental Systems Science, Genetic Diversity Centre, ETH Zürich, Universitätstrasse 16, 8006 Zürich, Switzerland
| | - Francesco Pomati
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - Kathrin Fenner
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland; Department of Chemistry, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland
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7
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Reddy B, Dubey SK. Exploring the allochthonous pollution influence on bacterial community and co-occurrence dynamics of River Ganga water through 16S rRNA-tagged amplicon metagenome. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:26990-27005. [PMID: 33501578 DOI: 10.1007/s11356-021-12342-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 01/02/2021] [Indexed: 06/12/2023]
Abstract
River Ganga is one of the largest and most sacred rivers of India. This river is largely affected by anthropogenic activities causing significant increase in water pollution. The impact of drains discharging polluted water on the bacterial community dynamics in the river remains unexplored. To elucidate this, the targeted 16S rRNA V3-V4 variable region amplicon sequencing and bioinformatic analysis were performed using water from upstream, drain, and downstream of river Ganga. Analysis revealed significant difference in relative abundances of bacterial communities. The increase in bacterial abundance and alpha diversity was detected in the downstream compared to the upstream. Environmental factors were found significantly different between upstream and downstream water. At the phyla level, highly abundant taxa such as Proteobacteria, Actinobacteria, Planctomycetes, Bacteroidetes, and Verrucomicrobia were observed. Bacterial genera like Prevotella, Bacteroides, Blautia, and Faecalibacterium (fecal indicator) had higher abundance in the downstream site. Network co-occurrence revealed that bacterial communities have a modular profile with reduced interaction in drain and downstream water. The network of co-occurring bacterial communities consists of 283 nodes with edge connectivity of 6900, 7074, and 5294 in upstream, drain, and downstream samples, respectively. Upstream communities exhibited the highest positive interaction followed by the drain and the downstream sites. Additionally, highly abundant pathogenic species such as Acinetobacter baumannii and Prevotella copri were also detected in all samples. This study suggests the drain to be allochthonous pollution vector that significantly contributes to bacterial community enrichment. From the results of this study, it is apparent that the lotic water may be used as the ecological reference to understand and monitor the variations in the bacterial communities and their co-occurrence dynamics in the fresh water ecosystems.
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Affiliation(s)
- Bhaskar Reddy
- Molecular Ecology Laboratory, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Suresh Kumar Dubey
- Molecular Ecology Laboratory, Centre of Advanced Study in Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India.
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8
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Chia MA, Lorenzi AS, Ameh I, Dauda S, Cordeiro-Araújo MK, Agee JT, Okpanachi IY, Adesalu AT. Susceptibility of phytoplankton to the increasing presence of active pharmaceutical ingredients (APIs) in the aquatic environment: A review. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2021; 234:105809. [PMID: 33780670 DOI: 10.1016/j.aquatox.2021.105809] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
Human and veterinary pharmaceuticals either in the form of un-metabolized, incompletely metabolized, and metabolized drugs are increasingly present in aquatic ecosystems. These active pharmaceutical ingredients from pharmaceutical industries, hospitals, agricultural, and domestic discharges find their way into water systems - where they adversely affect non-target organisms like phytoplankton. Different aspects of phytoplankton life; ranging from growth, reproduction, morphology, physiology, biochemical composition, oxidative response, proteomics, and transcriptomics are altered by pharmaceuticals. This review discusses the currently available information on the susceptibility of phytoplankton to the ever-increasing presence of pharmaceutical products in the aquatic environment by focusing on the effect of APIs on the physiology, metabolome, and proteome profiles of phytoplankton. We also highlight gaps in literature concerning the salient underlining biochemical interactions between phytoplankton communities and pharmaceuticals that require an in-depth investigation. This is all in a bid to understand the imminent dangers of the contamination of water bodies with pharmaceutical products and how this process unfavorably affects aquatic food webs.
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Affiliation(s)
| | - Adriana Sturion Lorenzi
- Department of Cellular Biology, Institute of Biological Sciences, University of Brasília, UnB, Brasília, DF, Brazil
| | - Ilu Ameh
- Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria; Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology, Ahmadu Bello University, Zaria, Nigeria
| | - Suleiman Dauda
- Department of Botany, Ahmadu Bello University, Zaria, Nigeria; Department of Botany, Federal University of São Carlos, Rodovia Washington Luis km 235. Zip Code 13.565-905, São Carlos, SP, Brazil
| | - Micheline Kézia Cordeiro-Araújo
- Department of Biological Sciences, Luiz de Queiroz College of Agriculture, University of São Paulo, Av. Pádua Dias, 11, São Dimas, Zip Code 13.418-900, Piracicaba, SP, Brazil
| | - Jerry Tersoo Agee
- Department of Biochemistry, Ahmadu Bello University, Zaria, Nigeria; Africa Centre of Excellence for Neglected Tropical Diseases and Forensic Biotechnology, Ahmadu Bello University, Zaria, Nigeria
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9
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Gad M, Hou L, Li J, Wu Y, Rashid A, Chen N, Hu A. Distinct mechanisms underlying the assembly of microeukaryotic generalists and specialists in an anthropogenically impacted river. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 748:141434. [PMID: 32814298 DOI: 10.1016/j.scitotenv.2020.141434] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/27/2020] [Accepted: 07/31/2020] [Indexed: 06/11/2023]
Abstract
Microeukaryotic communities are sensitive to environmental changes; and are considered essential for microbial food webs and biogeochemical cycles. Therefore, understanding the community responses of microeukaryotes to environmental changes is of great ecological significance. Very little is known about the assembly mechanisms underlying the microeukaryotic communities, especially for the key ecological groups (e.g., habitat generalists/specialists) in the riverine ecosystems. Here, we employed 18S rDNA amplicon sequencing to study the assembly processes governing the microeukaryotic communities and their habitat generalists and specialists across three hydrological seasons in a subtropical river in China. The results showed that deterministic and stochastic processes jointly shaped the microeukaryotic communities, where the relative importance of stochastic processes decreased in the following order: wet > normal > dry seasons. However, deterministic processes played more important role in shaping the microeukaryotic communities than those of prokaryotes. Meanwhile, stochastic and deterministic processes were responsible for structuring the microeukaryotic habitat generalists and specialists, respectively. Generally, the pure effects of physicochemical factors on the microeukaryotic communities and their key ecological groups were ~ 1.7 folds than those of the micropollutants. However, several micropollutants (e.g., acetaminophen, benzophenone-3, bisphenol A, sulfadiazine, triclocarban and triclosan) were found to have a strong effect on the habitat specialists. Altogether, we suggested that the ecological responses of the riverine microeukaryotes to micropollutants may vary among species due to the intrinsic differences in their environmental plasticity.
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Affiliation(s)
- Mahmoud Gad
- CAS Key Laboratory of Urban pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Water Pollution Research Department, National Research Centre, Giza 12622, Egypt
| | - Liyuan Hou
- Department of Chemistry, SUNY College of Environmental Science and Forestry, Syracuse, NY 13210, USA
| | - Jiangwei Li
- CAS Key Laboratory of Urban pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yang Wu
- Department of Biology and Environmental Engineering, Hefei University, Hefei 230601, China
| | - Azhar Rashid
- CAS Key Laboratory of Urban pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Nuclear Institute for Food and Agriculture, Tarnab, Peshawar, Pakistan
| | - Nengwang Chen
- Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies, College of the Environment and Ecology, Xiamen University, Xiamen, China; State Key Laboratory of Marine Environment Science, Xiamen University, Xiamen, China
| | - Anyi Hu
- CAS Key Laboratory of Urban pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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10
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Rizzuto S, Thrane JE, Baho DL, Jones KC, Zhang H, Hessen DO, Nizzetto L, Leu E. Water Browning Controls Adaptation and Associated Trade-Offs in Phytoplankton Stressed by Chemical Pollution. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:5569-5579. [PMID: 32292033 DOI: 10.1021/acs.est.0c00548] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The acquisition of tolerance to an environmental stressor can result in organisms displaying slower growth after stress release. While well-grounded in the theory, empirical evidence of the trade-off between stress tolerance and organism fitness is scarce and blurred by the interaction with different environmental factors. Here, we report the effects of water browning on the responses, tolerance acquisition, and associated trade-offs in a population of microalgae exposed to sublethal concentrations of organic micropollutants over multiple generations. Our results show that dissolved organic matter (DOM) reduces toxic responses and modulates tolerance acquisition by the algae, possibly by complexing micropollutants. Microalgae that acquire tolerance allocate resources to fitness at the cost of reduced cell size. They yield higher productivity than nonadapted ones when grown in the presence of micropollutants but lower in their absence. The net trade-off was positive, indicating that adaptation can result in a higher productivity and fitness in tolerant species in recurrently stressed environments.
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Affiliation(s)
- Simone Rizzuto
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, U.K
| | - Jan-Erik Thrane
- Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, 0349 Oslo, Norway
| | - Didier L Baho
- Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, 0349 Oslo, Norway
- Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences, P.O. Box 7050, SE-750-07 Uppsala, Sweden
| | - Kevin C Jones
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, U.K
| | - Hao Zhang
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, U.K
| | - Dag O Hessen
- Section for Aquatic Biology and Ecotoxicology, University of Oslo, P.O. Box 1066, Blindern, 0316 Oslo, Norway
- Center of Biogeochemistry in the Anthropocene (CAB), University of Oslo, P.O. Box 1066, Blindern, 0316 Oslo, Norway
| | - Luca Nizzetto
- Norwegian Institute for Water Research (NIVA), Gaustadalléen 21, 0349 Oslo, Norway
- RECETOX, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic
| | - Eva Leu
- Akvaplan-niva, CIENS, Science Park, Gaustadalléen 21, 0349 Oslo, Norway
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11
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Baho DL, Leu E, Pomati F, Hessen DO, Norberg J, Moe SJ, Skjelbred B, Nizzetto L. Resilience of Natural Phytoplankton Communities to Pulse Disturbances from Micropollutant Exposure and Vertical Mixing. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:2197-2208. [PMID: 31343756 DOI: 10.1002/etc.4536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/13/2019] [Accepted: 07/10/2019] [Indexed: 06/10/2023]
Abstract
Freshwaters are increasingly exposed to complex mixtures of pharmaceutical and personal care products (PPCPs) from municipal wastewater, which are known to alter freshwater communities' structure and functioning. However, their interaction with other disturbances and whether their combined effects can impact ecological resilience (i.e., the ability of a system to tolerate disturbances without altering the system's original structure and processes) remain unexplored. Using in situ mesocosms in 2 lakes with different nutrient levels (mesotrophic and eutrophic), we assessed whether a pulse exposure to sublethal concentrations of 12 PPCPs affects the ecological resilience of natural phytoplankton communities that experienced an abrupt environmental change involving the destabilization of the water column through mixing. Such mixing events are predicted to increase as the effects of climate change unfold, leading to more frequent storms, which disrupt stratification in lakes and force communities to restructure. We assessed their combined effects on community metrics (biomass, species richness, and composition) and their relative resilience using 4 indicators (cross-scale, within-scale, aggregation length, and gap length), inferred from phytoplankton communities by discontinuity analysis. The mixing disturbance alone had negligible effects on the community metrics, but when combined with chemical contaminants significant changes were measured: reducing total biomass, species richness, and altered community composition of phytoplankton. Once these changes occurred, they persisted until the end of the experiment (day 20), when the communities' structures from the 2 highest exposure levels diverged from the controls. The resilience indicators were not affected by PPCPs but differed significantly between lakes, with lower resilience found in the eutrophic lake. Thus, PPCPs can significantly alter community structures and reinforce mechanisms that maintain ecosystems in a "degraded state." Environ Toxicol Chem 2019;38:2197-2208. © 2019 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals, Inc. on behalf of SETAC.
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Affiliation(s)
- Didier L Baho
- Norwegian Institute for Water Research, CIENS, Science Park, Oslo, Norway
| | - Eva Leu
- Akvaplan-niva, CIENS, Science Park, Oslo, Norway
| | - Francesco Pomati
- Department of Aquatic Ecology, Eawag, Swiss Federal Institute of Aquatic Science and Technology, Dübendorf, Switzerland
- Institute of Integrative Biology, Swiss Federal Institute of Technology Zürich, Zürich, Switzerland
| | - Dag O Hessen
- Department of Biosciences, University of Oslo, Oslo, Norway
| | - Jon Norberg
- Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden
| | - S Jannicke Moe
- Norwegian Institute for Water Research, CIENS, Science Park, Oslo, Norway
| | - Birger Skjelbred
- Norwegian Institute for Water Research, CIENS, Science Park, Oslo, Norway
| | - Luca Nizzetto
- Norwegian Institute for Water Research, CIENS, Science Park, Oslo, Norway
- RECETOX, Masarik University, Brno, Czech Republic
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Baho DL, Pomati F, Leu E, Hessen DO, Moe SJ, Norberg J, Nizzetto L. A single pulse of diffuse contaminants alters the size distribution of natural phytoplankton communities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 683:578-588. [PMID: 31150881 DOI: 10.1016/j.scitotenv.2019.05.229] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/14/2019] [Accepted: 05/15/2019] [Indexed: 06/09/2023]
Abstract
The presence of a multitude of bioactive organic pollutants collectively classified as pharmaceuticals and personal care products (PPCPs) in freshwaters is of concern, considering that ecological assessments of their potential impacts on natural systems are still scarce. In this field experiment we tested whether a single pulse exposure to a mixture of 12 pharmaceuticals and personal care products, which are commonly found in European inland waters, can influence the size distributions of natural lake phytoplankton communities. Size is one of the most influential determinants of community structure and functioning, particularly in planktonic communities and food webs. Using an in-situ microcosm approach, phytoplankton communities in two lakes with different nutrient levels (mesotrophic and eutrophic) were exposed to a concentration gradient of the PPCPs mixture at five levels. We tested whether sub-lethal PPCPs doses affect the scaling of organisms' abundances with their size, and the slope of these size spectra, which describe changes in the abundances of small relative to large phytoplankton. Our results showed that a large proportion (approximately 80%) of the dataset followed a power-law distribution, thus suggesting evidence of scale invariance of abundances, as expected in steady state ecosystems. PPCPs were however found to induce significant changes in the size spectra and community structure of natural phytoplankton assemblages. The two highest treatment levels of PPCPs were associated with decreased abundance of the most dominant size class (nano-phytoplankton: 2-5 μm), leading to a flattening of the size spectra slope. These results suggest that a pulse exposure to PPCPs induce changes that potentially lead to unsteady ecosystem states and cascading effects in the aquatic food webs, by favoring larger non-edible algae at the expense of small edible species. We propose higher susceptibility due to higher surface to volume ratio in small species as the likely cause of these structural changes.
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Affiliation(s)
- Didier L Baho
- Norwegian Institute for Water Research (NIVA), CIENS, Science Park, Gaustadalleen 21, 0349 Oslo, Norway.
| | - Francesco Pomati
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Department of Aquatic Ecology, Dübendorf, Switzerland; Swiss Federal Institute of Technology (ETH) Zürich, Institute of Integrative Biology, Zürich, Switzerland
| | - Eva Leu
- Akvaplan-niva, CIENS, Science Park, Gaustadalleen 21, 0349 Oslo, Norway
| | - Dag O Hessen
- University of Oslo, Dept. Biosciences, Box 1066, Blindern, 0316 Oslo, Norway
| | - S Jannicke Moe
- Norwegian Institute for Water Research (NIVA), CIENS, Science Park, Gaustadalleen 21, 0349 Oslo, Norway
| | - Jon Norberg
- Stockholm Resilience Centre, Stockholm University, Kräftriket 2B, SE-10691, Stockholm, Sweden
| | - Luca Nizzetto
- Norwegian Institute for Water Research (NIVA), CIENS, Science Park, Gaustadalleen 21, 0349 Oslo, Norway; RECETOX, Masarik University, Kamenice 753/5, 625 00 Brno, Czech Republic
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13
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Hu A, Ju F, Hou L, Li J, Yang X, Wang H, Mulla SI, Sun Q, Bürgmann H, Yu CP. Strong impact of anthropogenic contamination on the co-occurrence patterns of a riverine microbial community. Environ Microbiol 2017; 19:4993-5009. [DOI: 10.1111/1462-2920.13942] [Citation(s) in RCA: 141] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 09/21/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Anyi Hu
- CAS Key Laboratory of Urban Pollutant Conversion; Institute of Urban Environment Chinese Academy of Sciences; Xiamen 361021 China
| | - Feng Ju
- Department of Surface Waters-Research and Management; Eawag, Swiss Federal Institute of Aquatic Science and Technology; Kastanienbaum 6047 Switzerland
| | - Liyuan Hou
- CAS Key Laboratory of Urban Pollutant Conversion; Institute of Urban Environment Chinese Academy of Sciences; Xiamen 361021 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Jiangwei Li
- CAS Key Laboratory of Urban Pollutant Conversion; Institute of Urban Environment Chinese Academy of Sciences; Xiamen 361021 China
| | - Xiaoyong Yang
- CAS Key Laboratory of Urban Pollutant Conversion; Institute of Urban Environment Chinese Academy of Sciences; Xiamen 361021 China
| | - Hongjie Wang
- CAS Key Laboratory of Urban Pollutant Conversion; Institute of Urban Environment Chinese Academy of Sciences; Xiamen 361021 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Sikandar I. Mulla
- CAS Key Laboratory of Urban Pollutant Conversion; Institute of Urban Environment Chinese Academy of Sciences; Xiamen 361021 China
| | - Qian Sun
- CAS Key Laboratory of Urban Pollutant Conversion; Institute of Urban Environment Chinese Academy of Sciences; Xiamen 361021 China
| | - Helmut Bürgmann
- Department of Surface Waters-Research and Management; Eawag, Swiss Federal Institute of Aquatic Science and Technology; Kastanienbaum 6047 Switzerland
| | - Chang-Ping Yu
- CAS Key Laboratory of Urban Pollutant Conversion; Institute of Urban Environment Chinese Academy of Sciences; Xiamen 361021 China
- Graduate Institute of Environmental Engineering; National Taiwan University; Taipei 106 Taiwan
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