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Pontet NGM, Fernández C, Botté SE. Novel method of removing metals from estuarine water using whole microbial mats. Biometals 2024:10.1007/s10534-023-00578-7. [PMID: 38270738 DOI: 10.1007/s10534-023-00578-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 12/22/2023] [Indexed: 01/26/2024]
Abstract
This study addresses the limited understanding of chromium-microbial mat interactions in estuarine tidal flats. The aims were to evaluate (1) the efficiency of the microbial consortium in Cr(III) removal from seawater; (2) the elemental and mineralogical composition of the microbial mat as a natural system in the Cr removal, (3) the effects of metal on microphytobenthos, and (4) possible interactions of Cr with other metals present in the consortium. Microbial mats were exposed to Cr(III) solutions at different concentrations (2-30 mg Cr/L). Analysis such as metal concentration, organic matter content, chlorophyll a and phaeopigment concentrations, abundance of diatoms and cyanobacteria, SEM-EDS, and XRD were performed. Most of the Cr(III) was deposited, as chromium oxide/hydroxide, on the surface of all microbial mat components. The complete microbial mat, comprising sediments, detritus, EPS, and diverse microorganism communities, exhibited a remarkable capacity to accumulate Cr(III), retaining over 87% in the solution.
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Affiliation(s)
- Natalia Gabriela Morales Pontet
- Argentine Institute of Oceanography, CONICET - National University of the South (UNS), Carrindanga 7.5 km Road, B8000FWB , Bahía Blanca, Argentina.
- Department of Biology, Biochemistry, and Pharmacy, National University of the South (UNS), San Juan 670, B8000ICN, Bahía Blanca, Argentina.
| | - Carolina Fernández
- Institute of Biochemical Research of Bahía Blanca, CONICET - National University of the South (UNS), Carrindanga 7.5 km Road, B8000FWB, Bahía Blanca, Argentina
- Center for Entrepreneurship and Sustainable Territorial Development (CEDETS), Provincial University of the Southwest (UPSO) - Commission of Scientific Research of the Province of Buenos Aires (CIC), Cali 320 city, B8003FTH, Bahía Blanca, Argentina
| | - Sandra Elizabeth Botté
- Argentine Institute of Oceanography, CONICET - National University of the South (UNS), Carrindanga 7.5 km Road, B8000FWB , Bahía Blanca, Argentina
- Department of Biology, Biochemistry, and Pharmacy, National University of the South (UNS), San Juan 670, B8000ICN, Bahía Blanca, Argentina
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Sheng W, Hou Q, Yang Z, Yu T. Impacts of periodic saltwater inundation on heavy metals in soils from the Pearl River Delta, China. Mar Environ Res 2023; 187:105968. [PMID: 36966684 DOI: 10.1016/j.marenvres.2023.105968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 03/17/2023] [Accepted: 03/20/2023] [Indexed: 06/18/2023]
Abstract
The alluvial plain delta is vulnerable to complex land-sea interactions as a result of rising sea levels and increasing storm surges due to global environmental change. Topsoil samples (0-20 cm) from the Pearl River Delta (PRD) were subjected to periodic artificial saltwater inundation treatments with varying salinities (0, 35‰, 40‰, 50‰) for 50 days to explore the impacts of saltwater inundation on heavy metals (Cd, Pb, Zn) in soils. The inundation treatments reached dynamic equilibrium in approximately 20 days, and heavy metals were promoted to release into leachate. The extraction rate of heavy metals was highest with artificial saltwater at 40‰ salinity, which was generally attributed to pH variation, increasing ionic strength and reductive dissolution of Fe-Mn oxyhydroxides. However, once the salinity reached 50‰, a higher SO2- 4concentration could depress the release of heavy metals by providing more negative adsorption sites. Cd in soils was most likely to leach, followed by Zn, but Pb showed higher retention. After saltwater inundation, the bioavailability of heavy metals decreased in the order Cd > Zn > Pb. Redundancy analysis (RDA) results demonstrated that Cd and Zn are more susceptible to soluble salt ions in soils than Pb. The retention of Pb could be attributed to its larger ionic radius and reduced hydrated radius as well as the stable species under the pH conditions of the treatments. This study suggests that the migration of heavy metals could reduce the water quality and increase the ecological risk of the interaction zone between land and sea.
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Affiliation(s)
- Weikang Sheng
- School of Earth Science and Resources, China University of Geosciences, Beijing, 100083, PR China
| | - Qingye Hou
- School of Earth Science and Resources, China University of Geosciences, Beijing, 100083, PR China.
| | - Zhongfang Yang
- School of Earth Science and Resources, China University of Geosciences, Beijing, 100083, PR China
| | - Tao Yu
- School of Science, China University of Geosciences, Beijing, 100083, PR China
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Greco M, Lejzerowicz F, Reo E, Caruso A, Maccotta A, Coccioni R, Pawlowski J, Frontalini F. Environmental RNA outperforms eDNA metabarcoding in assessing impact of marine pollution: A chromium-spiked mesocosm test. Chemosphere 2022; 298:134239. [PMID: 35292278 DOI: 10.1016/j.chemosphere.2022.134239] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/09/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
Environmental (e)DNA metabarcoding holds great promise for biomonitoring and ecotoxicological applications. However, few studies have compared the performance of eDNA versus eRNA metabarcoding in assessing organismal response to marine pollution, in experimental conditions. Here, we performed a chromium (Cr)-spiked mesocosm experimental test on benthic foraminiferal community to investigate the effects on species diversity by analysing both eDNA and eRNA metabarcoding data across different Cr concentrations in the sediment. Foraminiferal diversity in the eRNA data showed a significant negative correlation with the Cr concentration in the sediment, while a positive response was observed in the eDNA data. The foraminiferal OTUs exhibited a higher turnover rate in eRNA than in the eDNA-derived community. Furthermore, in the eRNA samples, OTUs abundance was significantly affected by the Cr gradient in the sediment (Pseudo-R2 = 0.28, p = 0.05), while no significant trend was observed in the eDNA samples. The correlation between Cr concentration and foraminiferal diversity in eRNA datasets was stronger when the less abundant OTUs (<100 reads) were removed and the analyses were conducted exclusively on OTUs shared between eRNA and eDNA datasets. This indicates the importance of metabarcoding data filtering to capture ecological impacts, in addition to using the putatively active organisms in the eRNA dataset. The comparative analyses on foraminiferal diversity revealed that eRNA-based metabarcoding can better assess the response to heavy metal exposure in presence of subtle concentrations of the pollutant. Furthermore, our results suggest that to unlock the full potential for ecosystem assessment, eDNA and eRNA should be studied in parallel to control for potential sequence artifacts in routine ecosystem surveys.
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Affiliation(s)
- Mattia Greco
- Institute of Oceanology, Polish Academy of Sciences, 81-712, Sopot, Poland.
| | - Franck Lejzerowicz
- Jacobs School of Engineering, University of California San Diego, La Jolla, CA, USA.
| | - Emanuela Reo
- Department of Genetics and Evolution, University of Geneva, Genève, Switzerland.
| | - Antonio Caruso
- Dipartimento di Scienze della Terra e del Mare (DiSTeM), Università di Palermo, Palermo, Italy.
| | - Antonella Maccotta
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Palermo, Italy.
| | | | - Jan Pawlowski
- Institute of Oceanology, Polish Academy of Sciences, 81-712, Sopot, Poland; Department of Genetics and Evolution, University of Geneva, Genève, Switzerland; ID-Gene Ecodiagnostics, Chemin du Pont-du-Centenaire 109, CH-1228, Plan-les-Ouates, Switzerland.
| | - Fabrizio Frontalini
- Dipartimento di Scienze Pure e Applicate, University of Urbino, Urbino, Italy.
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Frontalini F, Semprucci F, Di Bella L, Caruso A, Cosentino C, Maccotta A, Scopelliti G, Sbrocca C, Bucci C, Balsamo M, Martins MV, Armynot du Châtelet E, Coccioni R. The response of cultured meiofaunal and benthic foraminiferal communities to lead exposure: Results from mesocosm experiments. Environ Toxicol Chem 2018; 37:2439-2447. [PMID: 29920754 DOI: 10.1002/etc.4207] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 03/27/2018] [Accepted: 06/12/2018] [Indexed: 06/08/2023]
Abstract
Lead (Pb) is regarded as a highly toxic element that poses a serious threat to biota. A mesocosm experiment was performed to assess the influence of Pb on meiofaunal (metazoans within 45-500 μm) and benthic foraminiferal (protozoan) communities. To this end, sediments bearing such communities were incubated in mesocosms, exposed to different levels of Pb in seawater, and monitored for up to 8 wk. Concentrations of Pb <1 ppm in water did not promote a significant increase of this metal in sediments. Relatively high concentrations of Pb seemed to affect meiofaunal and benthic foraminiferal communities by reducing their richness or diversity, and the abundance of the most sensitive taxa. The mesocosm approach can be considered an effective method to document the responses of meiofaunal and benthic foraminiferal communities to various kinds and concentrations of pollutants over time. This approach allows the evaluation of dose-response relationships, validates the outcomes of field studies, and possibly confirms the sediment quality guidelines and thresholds. Environ Toxicol Chem 2018;37:2439-2447. © 2018 SETAC.
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Affiliation(s)
- Fabrizio Frontalini
- Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy
| | - Federica Semprucci
- Department of Biomolecular Sciences, University of Urbino, Urbino, Italy
| | - Letizia Di Bella
- Department of Earth Science, Rome University Sapienza, Roma, Italy
| | - Antonio Caruso
- Dipartimento di Scienze della Terra e del Mare, Università di Palermo, Palermo, Italy
| | - Claudia Cosentino
- Dipartimento di Scienze della Terra e del Mare, Università di Palermo, Palermo, Italy
| | - Antonella Maccotta
- Dipartimento di Scienze della Terra e del Mare, Università di Palermo, Palermo, Italy
| | - Giovanna Scopelliti
- Dipartimento di Scienze della Terra e del Mare, Università di Palermo, Palermo, Italy
| | - Claudia Sbrocca
- Department of Biomolecular Sciences, University of Urbino, Urbino, Italy
| | - Carla Bucci
- Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy
| | - Maria Balsamo
- Department of Biomolecular Sciences, University of Urbino, Urbino, Italy
| | - Maria Virginia Martins
- Laboratory of Micropaleontology, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
- GeoBioTec, Departamento de Geociências, Universidade de Aveiro, Campus de Santiago, Aveiro, Portugal
| | - Eric Armynot du Châtelet
- Laboratoire d'Océanologie et de Géosciences, Université Littoral Côte d'Opale, Université de Lille, Conseil National de la Recherche Scientifique, Lille, France
| | - Rodolfo Coccioni
- Department of Pure and Applied Sciences, University of Urbino, Urbino, Italy
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Frontalini F, Greco M, Di Bella L, Lejzerowicz F, Reo E, Caruso A, Cosentino C, Maccotta A, Scopelliti G, Nardelli MP, Losada MT, Armynot du Châtelet E, Coccioni R, Pawlowski J. Assessing the effect of mercury pollution on cultured benthic foraminifera community using morphological and eDNA metabarcoding approaches. Mar Pollut Bull 2018; 129:512-524. [PMID: 29033170 DOI: 10.1016/j.marpolbul.2017.10.022] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 09/14/2017] [Accepted: 10/09/2017] [Indexed: 06/07/2023]
Abstract
Mercury (Hg) is a highly toxic element for living organisms and is known to bioaccumulate and biomagnify. Here, we analyze the response of benthic foraminifera communities cultured in mesocosm and exposed to different concentrations of Hg. Standard morphological analyses and environmental DNA metabarcoding show evidence that Hg pollution has detrimental effects on benthic foraminifera. The molecular analysis provides a more complete view of foraminiferal communities including the soft-walled single-chambered monothalamiids and small-sized hard-shelled rotaliids and textulariids than the morphological one. Among these taxa that are typically overlooked in morphological studies we found potential bioindicators of Hg pollution. The mesocosm approach proves to be an effective method to study benthic foraminiferal responses to various types and concentrations of pollutants over time. This study further supports foraminiferal metabarcoding as a complementary and/or alternative method to standard biomonitoring program based on the morphological identification of species communities.
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Affiliation(s)
- Fabrizio Frontalini
- Department of Pure and Applied Sciences, University of Urbino, 61029 Urbino, Italy.
| | | | - Letizia Di Bella
- Department of Earth Science, Rome University "Sapienza", 00185 Roma, Italy
| | - Franck Lejzerowicz
- Department of Genetics and Evolution, University of Geneva, 1211 Genève, Switzerland
| | - Emanuela Reo
- Department of Genetics and Evolution, University of Geneva, 1211 Genève, Switzerland
| | - Antonio Caruso
- Dipartimento di Scienze della Terra e del Mare (DiSTeM), Università di Palermo, 90123 Palermo, Italy
| | - Claudia Cosentino
- Dipartimento di Scienze della Terra e del Mare (DiSTeM), Università di Palermo, 90123 Palermo, Italy
| | - Antonella Maccotta
- Dipartimento di Scienze della Terra e del Mare (DiSTeM), Università di Palermo, 90123 Palermo, Italy
| | - Giovanna Scopelliti
- Dipartimento di Scienze della Terra e del Mare (DiSTeM), Università di Palermo, 90123 Palermo, Italy
| | | | - Maria Teresa Losada
- Departamento de Zooloxía e Antropoloxía Física, Universidade de Santiago de Compostela, 27002 Lugo, Spain
| | - Eric Armynot du Châtelet
- Univ. Lille, CNRS, Univ. Littoral Cote d'Opale, UMR 8187, LOG, Laboratoire d'Océanologie et de Géosciences, F 59 000 Lille, France
| | - Rodolfo Coccioni
- Department of Pure and Applied Sciences, University of Urbino, 61029 Urbino, Italy
| | - Jan Pawlowski
- Department of Genetics and Evolution, University of Geneva, 1211 Genève, Switzerland
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