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Thiagarajan V, Nah T, Xin X. Impacts of atmospheric particulate matter deposition on phytoplankton: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 950:175280. [PMID: 39122032 DOI: 10.1016/j.scitotenv.2024.175280] [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: 05/16/2024] [Revised: 08/01/2024] [Accepted: 08/02/2024] [Indexed: 08/12/2024]
Abstract
In many rapidly urbanizing and industrializing countries, atmospheric pollution causes severe environmental problems and compromises the health of humans and ecosystems. Atmospheric emissions, which encompass gases and particulate matter, can be transported back to the earth's surface through atmospheric deposition. Atmospheric deposition supplies chemical species that can serve as nutrients and/or toxins to aquatic ecosystems, resulting in wide-ranging responses of aquatic organisms. Among the aquatic organisms, phytoplankton is the basis of the aquatic food web and is a key player in global primary production. Atmospheric deposition alters nutrient availability and thus influences phytoplankton species abundance and composition. This review provides a comprehensive overview of the physiological responses of phytoplankton resulting from the atmospheric deposition of trace metals, nitrogen-containing compounds, phosphorus-containing compounds, and sulfur-containing compounds in particulate matter into aquatic ecosystems. Knowledge gaps and critical areas for future studies are also discussed.
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Affiliation(s)
- Vignesh Thiagarajan
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong
| | - Theodora Nah
- School of Energy and Environment and State Key Laboratory of Marine Pollution, City University of Hong Kong, Hong Kong.
| | - Xiaying Xin
- Beaty Water Research Centre, Department of Civil Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada.
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2
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Echeveste P, Galbán-Malagón C, Dachs J, Agustí S. Airborne organic pollutants impact microbial communities in temperate and Antarctic seawaters. CHEMOSPHERE 2024; 364:143085. [PMID: 39146985 DOI: 10.1016/j.chemosphere.2024.143085] [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: 03/27/2024] [Revised: 08/11/2024] [Accepted: 08/12/2024] [Indexed: 08/17/2024]
Abstract
Airborne Organic Pollutants (AOPs) reach remote oceanic regions after long range atmospheric transport and deposition, incorporating into natural microbial communities. This study investigated the effects of AOPs on natural microbial communities of the Mediterranean Sea, the Atlantic Ocean and the Bellingshausen Sea, by assessing the impact of both non-polar and polar AOPs on cell abundances, chlorophyll a concentrations and cell viabilities of different microbial groups. Our results indicate that almost all groups, except flagellates in the Bellingshausen Sea, were significantly affected by AOPs. While no significant differences in chlorophyll a concentrations were observed between non-polar and polar AOPs, significant variations in cell abundances were noted. Cell death occurred at AOP concentrations as low as five times the oceanic field levels, likely due to their high chemical activity. Cyanobacteria in temperate waters exhibited the highest sensitivity to AOPs, whereas medium and larger diatoms in the Bellingshausen Sea were more affected than smaller diatoms or flagellates, contrary to the expected size-related sensitivity trend. Additionally, microorganisms in temperate waters were more sensitive to the polar fraction of AOPs compared to the non-polar fraction, which showed an inverse sensitivity pattern. This differential sensitivity is attributed to variations in the ratio of polar to non-polar AOPs in the respective environments. Our findings underscore the varying impacts of AOPs on marine microbial communities across different oceanic regions.
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Affiliation(s)
- Pedro Echeveste
- Departamento de Biología, Facultad de Ciencias, Universidad de las Islas Baleares. Palma, Spain.
| | - Cristóbal Galbán-Malagón
- Centro de Genómica Ecología y Medio Ambiente, Universidad Mayor. Santiago, Chile; Institute of Environment, Florida International University, Miami, United States of America
| | - Jordi Dachs
- Department of Environmental Chemistry, IDAEA-CSIC. Barcelona, Spain
| | - Susana Agustí
- Red Sea Research Center, King Abdullah University of Science and Technology. Thuwal, Saudi Arabia
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3
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González-Dávila M, Maldonado MT, González AG, Guo J, González-Santana D, Martel A, Santana-Casiano JM. Cu transport and complexation by the marine diatom Phaeodactylum tricornutum: Implications for trace metal complexation kinetics in the surface ocean. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 919:170752. [PMID: 38340864 DOI: 10.1016/j.scitotenv.2024.170752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 01/30/2024] [Accepted: 02/04/2024] [Indexed: 02/12/2024]
Abstract
Elucidating whether dissolved Cu uptake is kinetically or thermodynamically controlled, and the effects of speciation on Cu transport by phytoplankton will allow better modeling of the fate and impact of dissolved Cu in the ocean. To address these questions, we performed Cu physiological and physicochemical experiments using the model diatom, Phaeodactylum tricornutum, grown in natural North Atlantic seawater (0.44 nM Cu). Using competitive ligand equilibration-cathodic stripping voltammetry (CLE-CSV), we measured two organic ligand types released by P. tricornutum to bind Cu (L1 and L2) at concentrations of ~0.35 nM L1 and 1.3 nM L2. We also established the presence of two putative Cu-binding sites at the cell surface of P. tricornutum (S1 and S2) with log K differing by ~5 orders of magnitude (i.e., 12.9 vs. 8.1) and cell surface densities by 9-fold. Only the high-affinity binding sites, S1, exhibit reductase activity. Using voltammetric kinetic measurements and a theoretical kinetic model, we calculated the forward and dissociation rate constants of L1 and S1. Complementary 67Cu uptake experiments identified a high- and a low-affinity Cu uptake system in P. tricornutum, with half-saturation constant (Km) of 154 nM and 2.63 μM dissolved Cu, respectively. In the P. tricornutum genome, we identified a putative high-affinity Cu transporter (PtCTR49224) and a putative ZIP-like, low-affinity Cu transporter (PtZIP49400). PtCTR49224 has high homology to Homo sapiens hCTR1, which depending on the accessibility to extracellular reducing agents, the hCTR1 itself is involved in the reduction of Cu2+ to Cu+ before internalization. We combined these physiological and physicochemical data to calculate the rate constants for the internalization of Cu, and established that while the high-affinity Cu uptake system (S1) is borderline between a kinetically or thermodynamically controlled system, the low-affinity Cu transporters, S2, is thermodynamically-controlled. We revised the inverse relationship between the concentrations of inorganic complexes of essential metals (i.e., Ni, Fe, Co, Zn, Cd, Mn and Cu) in the mixed layer and the formation rate constant of metal transporters in phytoplankton, highlighting the link between the chemical properties of phytoplankton metal transporters and the availability and speciation of trace metals in the surface ocean.
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Affiliation(s)
- Melchor González-Dávila
- Instituto de Oceanografía y Cambio Global, IOCAG, Universidad de Las Palmas de Gran Canaria, ULPGC, Spain.
| | - Maria T Maldonado
- Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia Vancouver, BC, Canada.
| | - Aridane G González
- Instituto de Oceanografía y Cambio Global, IOCAG, Universidad de Las Palmas de Gran Canaria, ULPGC, Spain.
| | - Jian Guo
- Department of Earth, Ocean, and Atmospheric Sciences, University of British Columbia Vancouver, BC, Canada.
| | - David González-Santana
- Instituto de Oceanografía y Cambio Global, IOCAG, Universidad de Las Palmas de Gran Canaria, ULPGC, Spain.
| | - Antera Martel
- Banco Español de Algas, Instituto de Oceanografía y Cambio Global, IOCAG, Universidad de Las Palmas de Gran Canaria, ULPGC, Spain.
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Barber-Lluch E, Nieto-Cid M, Santos-Echeandía J, Sánchez-Marín P. Effect of dissolved organic matter on copper bioavailability to a coastal dinoflagellate at environmentally relevant concentrations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 901:165989. [PMID: 37536593 DOI: 10.1016/j.scitotenv.2023.165989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/20/2023] [Accepted: 07/31/2023] [Indexed: 08/05/2023]
Abstract
The speciation and bioavailability of copper (Cu) in the marine environment are affected by the presence of dissolved organic matter (DOM). Previous studies conducted at dissolved Cu concentrations >100 nM confirmed that Cu bioavailability depends on the concentration of labile Cu, as measured by anodic stripping voltammetry (ASV), which aligns with the expectations of the biotic ligand model (BLM). However, ambient Cu concentrations in coastal waters are generally lower, ranging between 1 and 80 nM, and the effect of DOM on the bioavailability of Cu to marine organisms has not been tested within that range of Cu concentrations. The present study aims to assess the impact of two types of DOM, a commercially available fulvic acid, and marine DOM extracted by ultrafiltration, on Cu bioavailability to phytoplankton using short-term 65Cu internalisation by the marine dinoflagellate Prorocentrum micans. Results showed that Cu internalisation decreases with DOM additions as expected according to the BLM and in agreement with ASV measurements of labile Cu, at the highest tested Cu concentration (100 nM). On the contrary, at a lower Cu concentration (20 nM), organic complexes appear to be partially bioavailable, thereby challenging the general applicability of the BLM model at environmentally relevant concentrations in coastal areas.
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Affiliation(s)
- Esther Barber-Lluch
- Centro Oceanográfico de Vigo, Instituto Español de Oceanografía (IEO-CSIC), Subida a Radio Faro, s/n, 36390 Vigo, Spain
| | - Mar Nieto-Cid
- Centro Oceanográfico de A Coruña, Instituto Español de Oceanografía (IEO-CSIC), Paseo marítimo alcalde Francisco Vázquez, 10, 15001 A Coruña, Spain; Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (CSIC), Eduardo Cabello, 6, 36208 Vigo, Spain
| | - Juan Santos-Echeandía
- Centro Oceanográfico de Vigo, Instituto Español de Oceanografía (IEO-CSIC), Subida a Radio Faro, s/n, 36390 Vigo, Spain
| | - Paula Sánchez-Marín
- Centro Oceanográfico de Vigo, Instituto Español de Oceanografía (IEO-CSIC), Subida a Radio Faro, s/n, 36390 Vigo, Spain.
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Huapaya K, Echeveste P. Physiological responses of Humboldt current system diatoms to Fe and Cu co-limitation. MARINE ENVIRONMENTAL RESEARCH 2023; 187:105937. [PMID: 36958199 DOI: 10.1016/j.marenvres.2023.105937] [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: 08/18/2022] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
Diatoms account for ∼20% of global primary production, often limited by the availability of Fe and other trace nutrients such as Cu. The present study examined the role of both metals in the physiology of two diatoms isolated from the Humboldt Currents System, the centric Chaetoceros c.f. dicipiens and the pennate Nitzschia c.f. draveillensis. Under Fe limitation, a decrease in specific growth rates and sizes of both species was observed, especially in Chaetoceros. However, regarding different photosynthetic parameters, Nitzschia was more impacted. The increase in Cu concentrations improved the physiology of both diatoms, mostly of Chaetoceros. When grown in mixed cultures and under co-limiting conditions, both species remained competive due to morphological advantages (i.e., lower cell size). These results may suggest that the increase of Cu under Fe limitation benefited C. c.f. dicipiens over N. c.f. draveillensis.
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Affiliation(s)
- Katiuska Huapaya
- Instituto de Ciencias Naturales Alexander von Humboldt, Facultad de Ciencias Del Mar y Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile.
| | - Pedro Echeveste
- Instituto de Ciencias Naturales Alexander von Humboldt, Facultad de Ciencias Del Mar y Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile; Instituto Milenio de Oceanografía, Chile
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Bendif EM, Probert I, Archontikis OA, Young JR, Beaufort L, Rickaby RE, Filatov D. Rapid diversification underlying the global dominance of a cosmopolitan phytoplankton. THE ISME JOURNAL 2023; 17:630-640. [PMID: 36747097 PMCID: PMC10030636 DOI: 10.1038/s41396-023-01365-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 02/08/2023]
Abstract
Marine phytoplankton play important roles in the global ecosystem, with a limited number of cosmopolitan keystone species driving their biomass. Recent studies have revealed that many of these phytoplankton are complexes composed of sibling species, but little is known about the evolutionary processes underlying their formation. Gephyrocapsa huxleyi, a widely distributed and abundant unicellular marine planktonic algae, produces calcified scales (coccoliths), thereby significantly affects global biogeochemical cycles via sequestration of inorganic carbon. This species is composed of morphotypes defined by differing degrees of coccolith calcification, the evolutionary ecology of which remains unclear. Here, we report an integrated morphological, ecological and genomic survey across globally distributed G. huxleyi strains to reconstruct evolutionary relationships between morphotypes in relation to their habitats. While G. huxleyi has been considered a single cosmopolitan species, our analyses demonstrate that it has evolved to comprise at least three distinct species, which led us to formally revise the taxonomy of the G. huxleyi complex. Moreover, the first speciation event occurred before the onset of the last interglacial period (~140 ka), while the second followed during this interglacial. Then, further rapid diversifications occurred during the most recent ice-sheet expansion of the last glacial period and established morphotypes as dominant populations across environmental clines. These results suggest that glacial-cycle dynamics contributed to the isolation of ocean basins and the segregations of oceans fronts as extrinsic drivers of micro-evolutionary radiations in extant marine phytoplankton.
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Affiliation(s)
- El Mahdi Bendif
- Department of Earth Sciences, University of Oxford, Oxford, UK.
- Department of Plant Sciences, University of Oxford, Oxford, UK.
- Institut des sciences de la mer de Rimouski (ISMER), Université du Québec à Rimouski, Rimouski, Canada.
| | - Ian Probert
- Sorbonne Université - CNRS, Roscoff Culture Collection, FR2424 Station Biologique de Roscoff, Roscoff, France
| | - Odysseas A Archontikis
- Department of Earth Sciences, University of Oxford, Oxford, UK
- Department of Earth Sciences, The Natural History Museum, London, UK
| | - Jeremy R Young
- Department of Earth Sciences, University College London, London, UK
| | - Luc Beaufort
- Aix Marseille Université, CNRS, IRD, INRAE, CEREGE, Aix-en-Provence, France
| | | | - Dmitry Filatov
- Department of Plant Sciences, University of Oxford, Oxford, UK
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Solomonova ES, Shoman NY, Akimov AI, Rylkova OA. Comparative Assessment of Stress Responses of the Microalgae Prorocentrum cordatum (Ostenfeld) Dodge and Dunaliella salina (Teod.) to the Presence of Copper Nanoparticles. Microbiology (Reading) 2023. [DOI: 10.1134/s0026261722602482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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Solomonova E, Shoman N, Akimov A, Rylkova O. Differential responses of Pleurochrysis sp. (Haptophyta) to the effect of copper and light intensity. FUNCTIONAL PLANT BIOLOGY : FPB 2022; 49:1085-1094. [PMID: 36059160 DOI: 10.1071/fp22101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
The effect of light, copper ions, copper oxide nanoparticles on the change in the structural, functional, cytometric, fluorescent parameters of coccolithophore Pleurochrysis sp. was investigated. The culture Pleurochrysis sp. was represented by two cell forms: (1) covered with coccoliths; and (2) not covered, the ratio of which depends from growth conditions. An increase in light from 20 to 650μEm-2 s-1 led to a decrease in the concentration of cells covered with coccoliths from 90 to 35%. With an increase in light, the decrease in the values of variable chlorophyll a fluorescence was observed, a decrease in the chlorophyll concentration was noted, and an increase in cell volumes and their granularity due to coccoliths 'overproduction' was recorded. A tolerance of Pleurochrysis sp. to the effect of copper was registered, both in the ionic form and in the form of a nanopowder. This is probably due to the morphological (presence of coccoliths) and physiological (ligand production) peculiarities of species. Copper did not affect the ratio of cells covered with coccoliths; its value was about 85%. Growth inhibition, a 2-fold decrease in the intracellular chlorophyll content, a decrease in F v /F m , and a pronounced cell coagulation were recorded at the maximum Cu2+ concentration (625μgL-1 ). The mechanical effect was registered of CuO nanoparticles on the surface of Pleurochrysis sp. coccosphere, which results in the emergence of destroyed and deformed coccoliths. A hypothesis is proposed considering the protective function of coccoliths acting as a barrier when the cells are exposed to nanoparticles and copper ions.
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Affiliation(s)
- Ekaterina Solomonova
- Moscow Representative Office A.O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Sciences, Leninsky Avenue, 38, Moscow 119991, Russian Federation
| | - Natalia Shoman
- Moscow Representative Office A.O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Sciences, Leninsky Avenue, 38, Moscow 119991, Russian Federation
| | - Arkadii Akimov
- Moscow Representative Office A.O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Sciences, Leninsky Avenue, 38, Moscow 119991, Russian Federation
| | - Olga Rylkova
- Moscow Representative Office A.O. Kovalevsky Institute of Biology of the Southern Seas of the Russian Academy of Sciences, Leninsky Avenue, 38, Moscow 119991, Russian Federation
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Chen H, Shen X, Ying Y, Li X, Chen L, Shen C, Wen Y. Effect of trace elements in the toxicity of copper to Chlamydomonas reinhardtii. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2022; 24:576-585. [PMID: 35266473 DOI: 10.1039/d1em00521a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Copper sulfate (CuSO4) is widely used in the control of algal blooms. Cu can promote or inhibit algal growth, while also affecting trace element uptake, therefore, the response mechanisms of algae cells under Cu2+ interference should be studied. In this study, wild-type Chlamydomonas reinhardtii (C. reinhardtii) and wall-less mutant C. reinhardtii were selected as the research objects. Except for the cell wall, these two algae were physiologically the same. While manipulating the concentration of Cu, the accumulation of Cu, Fe, Zn, and Mn by the two algal cell types was studied. The cell wall hindered the accumulation of Cu by cells and alleviated the toxicity of Cu to C. reinhardtii. The addition of Cu increased the accumulation of Fe by both cell types. In an environment with excess Cu, the total amount of Zn and Mn accumulated by cells also increased. On the one hand, this may be due to the synergistic and antagonistic effects of trace elements in the adsorption and uptake process, and on the other hand, it may be due to the changes in metal speciation in the culture medium. In addition, the difference in the total accumulation of various trace elements between wild-type and wall-less-type C. reinhardtii may be due to the structure and function differences between cell wall and cell membrane. At the same time, by measuring the changes in the levels of glutathione (GSH) in algal cells, the relevant mechanisms underlying the algae's uptake of trace elements by algae were further explored.
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Affiliation(s)
- Hui Chen
- College of Science and Technology, Ningbo University, Cixi 315302, China
| | - Xin Shen
- College of Science and Technology, Ningbo University, Cixi 315302, China
| | - Yiping Ying
- College of Science and Technology, Ningbo University, Cixi 315302, China
| | - Xiang Li
- College of Science and Technology, Ningbo University, Cixi 315302, China
| | - Lili Chen
- College of Science and Technology, Ningbo University, Cixi 315302, China
| | - Chensi Shen
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, China
| | - Yuezhong Wen
- Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, Interdisciplinary Research Academy (IRA), Zhejiang Shuren University, Hangzhou 310015, China.
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Téllez AAC, Sánchez-Fortún S, Sánchez-Fortún A, García-Pérez ME, Chacon-Garcia L, Bartolomé MC. Prediction of the impact induced by Cd in binary interactions with other divalent metals on wild-type and Cd-resistant strains of Dictyosphaerium chlorelloides. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:22555-22565. [PMID: 34791630 DOI: 10.1007/s11356-021-17372-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 11/01/2021] [Indexed: 06/13/2023]
Abstract
The metals present in freshwater have a toxic profile with bioaccumulation and are biomagnified along the aquatic food chain. The metals induce high sensitivity in most aquatic organisms, while others, such as some microalgae species, evolve towards resistance. Therefore, this research predicted through the Combination Index method the binary interaction exposed to divalent metals by inhibiting population growth in a Cd-resistant strain (DcRCd100) compared to the wild-type strain (Dc1Mwt) of Dictyosphaerium chlorelloides and evaluate the specific resistance level obtained by DcRCd100 to Cd relative to other divalent metals.The results showed that DcRCd100 presents resistance compared to Dc1Mwt in individual exposure in the order of Fe2+ > Ni2+ > Cd2+ > Co2+ > Zn2+ > Cu2+ > Hg2+ with 50% inhibitory concentration at 72 h of exposure (IC50(72)) values 1253, 644.4, 423, 162.7, 141.3, 35.1, and 9.9 µM, respectively. It induces cross-resistance with high antagonistic rates (Combination Index (CI); CI > > 1) in the Cd/Zn and Cd/Cu. Cd/Ni, its initial response, is antagonistic, and it ends in an additive (CI = 1). DcRCd100 showed a lower resistance in Co, and Cd/Fe resistance was reduced individually. The interaction with Hg increased its resistance ten times more than individually.This research highlights the use of the CI as a highly efficient prediction method of the binary metal interactions in wild-type and Cd-resistant strains of D. chlorelloides. It may have the potential for metal accumulation, allowing the development of new methods of bioremediation of metals in effluents, and to monitor the concentration of metals in wastewater, its relative availability, transport, and mechanisms on resistant strains of microalgae.
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Affiliation(s)
- Alondra A Cortés Téllez
- Department of Pharmacology and Toxicology, Universidad Complutense de Madrid (UCM), Puerta de Hierro Ave., 28040, Madrid, Spain
| | - Sebastián Sánchez-Fortún
- Department of Pharmacology and Toxicology, Universidad Complutense de Madrid (UCM), Puerta de Hierro Ave., 28040, Madrid, Spain
| | - Ana Sánchez-Fortún
- Department of Pharmacology and Toxicology, Universidad Complutense de Madrid (UCM), Puerta de Hierro Ave., 28040, Madrid, Spain
| | - Martha-Estrella García-Pérez
- Chemical-Biological Sciences Institute, Universidad Michoacana de San Nicolás de Hidalgo (UMSNH), 403 Santiago Tapia St., 58000, Morelia (Michoacán), Mexico
| | - Luis Chacon-Garcia
- Chemical-Biological Sciences Institute, Universidad Michoacana de San Nicolás de Hidalgo (UMSNH), 403 Santiago Tapia St., 58000, Morelia (Michoacán), Mexico
| | - M Carmen Bartolomé
- Environmental Toxicology LaboratoryFaculty of Chemistry-Pharmacobiology, Universidad Michoacana de San Nicolás de Hidalgo (UMSNH), 403 Santiago Tapia St., 58000, Morelia (Michoacán), Mexico.
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Nautical Tourism in Marine Protected Areas (MPAs): Evaluating an Impact of Copper Emission from Antifouling Coating. SUSTAINABILITY 2021. [DOI: 10.3390/su132111897] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Copper (Cu) has a narrow range between optimal concentrations as a micronutrient critical for phytoplankton growth and concentrations potentially toxic to living organisms. This sensitivity indicates an ecosystem vulnerability that threatens not only nature but also human health due to bioaccumulation. An important source of elevated Cu concentrations in coastal environments are biocides used as antifouling protection on ships. A pilot study conducted in the Marine Protected Area (MPA) of the Krka Estuary (Croatia) over a period of 16 months investigated the relationship between ship traffic and Cu concentrations. The aim was to contribute to more informed environmental management by assessing the associated risks. In the study presented here, Cu concentrations were monitored, analyzed, and correlated with vessel traffic. Observations revealed that the seasonal increase in maritime traffic caused by nautical tourism was associated with an increase in Cu concentrations of more than five times, posing a toxicity risk to the environment. In order to understand the distribution of copper emissions, a mapping of maritime traffic was carried out by counting transits, radar imagery, and drone photography. This approach has proven sufficient to identify the potential risks to the marine environment and human health, thus providing an effective assessment tool for marine stakeholders.
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Abstract
Atmospheric aerosol deposition (wet and dry) is an important source of macro and micronutrients (N, P, C, Si, and Fe) to the oceans. Most of the mass flux of air particles is made of fine mineral particles emitted from arid or semi-arid areas (e.g., deserts) and transported over long distances until deposition to the oceans. However, this atmospheric deposition is affected by anthropogenic activities, which heavily impacts the content and composition of aerosol constituents, contributing to the presence of potentially toxic elements (e.g., Cu). Under this scenario, the deposition of natural and anthropogenic aerosols will impact the biogeochemical cycles of nutrients and toxic elements in the ocean, also affecting (positively or negatively) primary productivity and, ultimately, the marine biota. Given the importance of atmospheric aerosol deposition to the oceans, this paper reviews the existing knowledge on the impacts of aerosol deposition on the biogeochemistry of the upper ocean, and the different responses of marine biota to natural and anthropogenic aerosol input.
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Marcinek S, Chapoulie A, Salaün P, Smith S, Omanović D. Revised application of copper ion selective electrode (Cu-ISE) in marine waters: A new meta-calibration approach. Talanta 2021; 226:122170. [PMID: 33676712 DOI: 10.1016/j.talanta.2021.122170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/25/2021] [Accepted: 01/27/2021] [Indexed: 11/24/2022]
Abstract
Copper (Cu) is a bio-essential trace element that is of concerns due to its potential toxicity at concentrations commonly encountered in coastal waters. Here, we revisit the applicability of Cu(II) ion selective electrode (Cu-ISE) based on a jalpaite membrane for the measurement of Cufree in seawater. At high total Cu concentration (>0.1 mM), (near)Nernstian slope was obtained and determination of Cufree down to fM levels was possible. However, this slope decreases with decreasing total Cu concentration (e.g. 7 mV/decade at 15 nM total Cu) making the use of a common single calibration approach unreliable. To solve this problem, we carried out several calibrations at different levels of total Cu (15 nM - 1 mM) and ethylenediamine (EN: 5 μM - 15 mM) and fitted the calibration parameters (slope and intercept) as a function of total Cu using the Gompertz function (a meta-calibration approach). The derived empirical equations allowed the determination of Cufree at any total Cu concentration above 20 nM (determination of Cufree at lower total Cu levels is prevented by the dissolution of the electrode). We successfully tested this meta-calibration approach in UV digested seawater in presence of a synthetic ligand (EN), isolated natural organic matter (humic acid, HA) and in a natural estuarine sample. In each case, our meta-calibration approach provided a good agreement with modeled speciation data (Visual MINTEQ), while standard single approach failed. We provide here a new method for the direct determination of the free Cu ion concentration in seawater at levels relevant for coastal waters.
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Affiliation(s)
- Saša Marcinek
- Ruđer Bošković Institute, Center for Marine and Environmental Research, Bijenička Cesta 54, 10000, Zagreb, Croatia.
| | - Arnaud Chapoulie
- Ecole Nationale Supérieure D'Ingénieurs de Caen (ENSICAEN), 6 Boulevard Maréchal Juin, 14050, Caen, France
| | - Pascal Salaün
- Department of Earth and Ocean Sciences, University of Liverpool, Liverpool, L69 3GP, UK
| | - Scott Smith
- Department of Chemistry and Biochemistry, Wilfrid Laurier University, 75 University Avenue West, Waterloo, ON, N2L 3C5, Canada
| | - Dario Omanović
- Ruđer Bošković Institute, Center for Marine and Environmental Research, Bijenička Cesta 54, 10000, Zagreb, Croatia.
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14
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Abstract
Atmospheric deposition brings both nutrients and toxic components to the surface ocean, resulting in important impacts on phytoplankton. Field and lab studies have been done on the iron (Fe) fertilization on marine phytoplankton. However, studies on other trace metals are limited. Both bioassay experiments and field observations have suggested that aerosols with high copper (Cu) concentrations can negatively affect the primary productivity and change phytoplankton community structure. Note that with increasing human activities and global environmental changes (e.g., ocean acidification, warming, deoxygenation, etc.), the input of aerosol Cu could exceed toxicity thresholds at certain times or in some sensitive oceanic regions. Here, we provide a comprehensive review on aerosol Cu and marine phytoplankton studies by summarizing (1) physiological effects and toxicity thresholds of Cu to various phytoplankton taxa, (2) interactions between Cu and other metals and major nutrients, and (3) global distribution of surface seawater Cu and atmospheric Cu. We suggest that studies on aerosols, seawater chemistry, and phytoplankton should be integrated for understanding the impacts of aerosol Cu on marine phytoplankton, and thereafter the air–sea interaction via biogeochemical processes.
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15
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Long M, Holland A, Planquette H, González Santana D, Whitby H, Soudant P, Sarthou G, Hégaret H, Jolley DF. Effects of copper on the dinoflagellate Alexandrium minutum and its allelochemical potency. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 210:251-261. [PMID: 30878793 DOI: 10.1016/j.aquatox.2019.03.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 02/05/2019] [Accepted: 03/07/2019] [Indexed: 06/09/2023]
Abstract
The dinoflagellate Alexandrium minutum produces toxic compounds, including paralytic shellfish toxins, but also some unknown extracellular toxins. Although copper (Cu) is an essential element, it can impair microalgal physiology and increase their toxic potency. This study investigated the effect of different concentrations of dissolved Cu (7 nM, 79 nM and 164 nM) on A. minutum allelochemical potency, here defined as negative effects of a protist on competing protists through the release of chemicals. This was studied in relation to its physiology. The effects of Cu were assessed on A. minutum growth, reactive oxygen species level, photosynthesis proxies, lipid metabolism, exudation of dissolved organic compounds, allelochemical potency and on the associate free bacterial community of A. minutum. Only the highest Cu exposure (164 nM) inhibited and delayed the growth of A. minutum, and only in this treatment did the allelochemical potency significantly increase, when the dissolved Cu concentration was still toxic. Within the first 7 days of the high Cu treatment, the physiology of A. minutum was severely impaired with decreased growth and photosynthesis, and increased stress responses and free bacterial density per algal cell. After 15 days, A. minutum partially recovered from Cu stress as highlighted by the growth rate, reactive oxygen species level and photosystem II yields. This recovery could be attributed to the apparent decrease in background dissolved Cu concentration to a non-toxic level, suggesting that the release of exudates may have partially decreased the bioavailable Cu fraction. Overall, A. minutum appeared quite tolerant to Cu, and this work suggests that the modifications in the physiology and in the exudates help the algae to cope with Cu exposure. Moreover, this study shows the complex interplay between abiotic and biotic factors that can influence the dynamic of A. minutum blooms. Modulation in allelochemical potency of A. minutum by Cu may have ecological implications with an increased competitiveness of this species in environments contaminated with Cu.
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Affiliation(s)
- Marc Long
- School of Chemistry, University of Wollongong, NSW, 2522, Australia; Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS UBO IRD IFREMER -Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise, Rue Dumont d'Urville, 29280, Plouzané, France.
| | - Aleicia Holland
- La Trobe University, School of Life Science, Department of Ecology, Environment and Evolution, Centre for Freshwater Ecosystems, Albury/Wodonga Campus, VIC, Australia
| | - Hélène Planquette
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS UBO IRD IFREMER -Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise, Rue Dumont d'Urville, 29280, Plouzané, France
| | - David González Santana
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS UBO IRD IFREMER -Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise, Rue Dumont d'Urville, 29280, Plouzané, France
| | - Hannah Whitby
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS UBO IRD IFREMER -Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise, Rue Dumont d'Urville, 29280, Plouzané, France
| | - Philippe Soudant
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS UBO IRD IFREMER -Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise, Rue Dumont d'Urville, 29280, Plouzané, France
| | - Géraldine Sarthou
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS UBO IRD IFREMER -Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise, Rue Dumont d'Urville, 29280, Plouzané, France
| | - Hélène Hégaret
- Laboratoire des Sciences de l'Environnement Marin (LEMAR), UMR 6539 CNRS UBO IRD IFREMER -Institut Universitaire Européen de la Mer, Technopôle Brest-Iroise, Rue Dumont d'Urville, 29280, Plouzané, France
| | - Dianne F Jolley
- School of Chemistry, University of Wollongong, NSW, 2522, Australia
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16
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Silva JC, Echeveste P, Lombardi AT. Higher biomolecules yield in phytoplankton under copper exposure. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:57-63. [PMID: 29859408 DOI: 10.1016/j.ecoenv.2018.05.059] [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: 01/10/2018] [Revised: 05/17/2018] [Accepted: 05/23/2018] [Indexed: 05/09/2023]
Abstract
Copper is an important metal for industry, and its toxic threshold in natural ecosystems has increased since the industrial revolution. As an essential nutrient, it is required in minute amounts, being toxic in slightly increased concentrations, causing great biochemical transformation in microalgae. This study aimed at investigating the physiology of Scenedesmus quadricauda, a cosmopolitan species, exposed to copper concentrations including those that trigger intracellular biochemical modifications. The Cu exposure concentrations tested ranged from 0.1 to 25 µM, thus including environmentally important levels. Microalgae cultures were kept under controlled environmental conditions and monitored daily for cell density, in vivo chlorophyll a, and photosynthetic quantum yield (ΦM). After 24 h growth, free Cu2+ ions were determined, and after 96 h, cellular Cu concentration, total carbohydrates, proteins, lipids, and cell volume were determined. The results showed that both free Cu2+ ions and cellular Cu increased with Cu increase in culture medium. Microalgae cell abundance and in vivo chlorophyll a were mostly affected at 2.5 µM Cu exposure (3.8 pg Cu cell-1) and above. Approximately 31% decrease of photosynthetic quantum yield was obtained at the highest Cu exposure concentration (25 µM; 25 pg Cu cell-1) in comparison with the control. However, at environmentally relevant copper concentrations (0.5 µM Cu; 0.4 pg Cu cell-1) cell volume increased in comparison with the control. Considering biomolecules accumulation per unit cell volume, the highest carbohydrates and proteins yield was obtained at 1.0 µM Cu (1.1 pg Cu cell-1), while for lipids higher Cu was necessary (2.5 µM Cu; 3.8 pg Cu cell-1). This study is a contribution to the understanding of the effects of environmentally significant copper concentrations in the physiology of S. quadricauda, as well as to biotechnological approach to increase biomolecule yield in microalgae production.
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Affiliation(s)
| | - Pedro Echeveste
- Botany Department, Universidade Federal de São Carlos (UFSCar), São Paulo, Brazil; Instituto de Ciencias Naturales Alexander von Humboldt, Facultad de Ciencias del Mar y Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile; Millennium Institute of Oceanography, Chile
| | - Ana Teresa Lombardi
- Botany Department, Universidade Federal de São Carlos (UFSCar), São Paulo, Brazil
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