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Barbe V, Jacquin J, Bouzon M, Wolinski A, Derippe G, Cheng J, Cruaud C, Roche D, Fouteau S, Petit JL, Conan P, Pujo-Pay M, Bruzaud S, Ghiglione JF. Bioplastic degradation and assimilation processes by a novel bacterium isolated from the marine plastisphere. J Hazard Mater 2024; 466:133573. [PMID: 38306834 DOI: 10.1016/j.jhazmat.2024.133573] [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: 10/17/2023] [Revised: 11/23/2023] [Accepted: 01/17/2024] [Indexed: 02/04/2024]
Abstract
Biosourced and biodegradable plastics offer a promising solution to reduce environmental impacts of plastics for specific applications. Here, we report a novel bacterium named Alteromonas plasticoclasticus MED1 isolated from the marine plastisphere that forms biofilms on foils of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV). Experiments of degradation halo, plastic matrix weight loss, bacterial oxygen consumption and heterotrophic biosynthetic activity showed that the bacterial isolate MED1 is able to degrade PHBV and to use it as carbon and energy source. The likely entire metabolic pathway specifically expressed by this bacterium grown on PHBV matrices was shown by further genomic and transcriptomic analysis. In addition to a gene coding for a probable secreted depolymerase, a gene cluster was located that encodes characteristic enzymes involved in the complete depolymerization of PHBV, the transport of oligomers, and in the conversion of the monomers into intermediates of central carbon metabolism. The transcriptomic experiments showed the activation of the glyoxylate shunt during PHBV degradation, setting the isocitrate dehydrogenase activity as regulated branching point of the carbon flow entering the tricarboxylic acid cycle. Our study also shows the potential of exploring the natural plastisphere to discover new bacteria with promising metabolic capabilities.
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Affiliation(s)
- Valérie Barbe
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - Justine Jacquin
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, France
| | - Madeleine Bouzon
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - Adèle Wolinski
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, France
| | - Gabrielle Derippe
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, France; Institut de Recherche Dupuy de Lôme (IRDL), Université de Bretagne-Sud, UMR CNRS 6027, Rue Saint Maudé, Lorient, France
| | - Jingguang Cheng
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, France
| | - Corinne Cruaud
- Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - David Roche
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - Stéphanie Fouteau
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - Jean-Louis Petit
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - Pascal Conan
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, France
| | - Mireille Pujo-Pay
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, France
| | - Stéphane Bruzaud
- Institut de Recherche Dupuy de Lôme (IRDL), Université de Bretagne-Sud, UMR CNRS 6027, Rue Saint Maudé, Lorient, France
| | - Jean-François Ghiglione
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, France.
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2
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Derippe G, Philip L, Lemechko P, Eyheraguibel B, Meistertzheim AL, Pujo-Pay M, Conan P, Barbe V, Bruzaud S, Ghiglione JF. Marine biodegradation of tailor-made polyhydroxyalkanoates (PHA) influenced by the chemical structure and associated bacterial communities. J Hazard Mater 2024; 462:132782. [PMID: 37856958 DOI: 10.1016/j.jhazmat.2023.132782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 10/12/2023] [Accepted: 10/12/2023] [Indexed: 10/21/2023]
Abstract
Over recent years, biodegradable polymers have been proposed to reduce environmental impacts of plastics for specific applications. The production of polyhydroxyalkanoates (PHA) by using diverse carbon sources provides further benefits for the sustainable development of biodegradable plastics. Here, we present the first study evaluating the impact of physical, chemical and biological factors driving the biodegradability of various tailor-made PHAs in the marine environment. Our multidisciplinary approach demonstrated that the chemical structure of the polymer (i.e. the side chain size for short- vs. medium-chain PHA) which was intrinsically correlated to the physico-chemical properties, together with the specificity of the biofilm growing on plastic films (i.e., the associated 'plastisphere') were the main drivers of the PHA biodegradation in the marine environment.
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Affiliation(s)
- Gabrielle Derippe
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), 1 Avenue Fabre, F-66650 Banyuls sur mer, France; Université Bretagne Sud, Institut de Recherche Dupuy de Lôme (IRDL), UMR CNRS 6027, 56321 Lorient, France
| | - Léna Philip
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), 1 Avenue Fabre, F-66650 Banyuls sur mer, France; SAS Plastic@Sea, Observatoire Océanologique de Banyuls, France
| | - Pierre Lemechko
- Institut Régional des Matériaux Avancés (IRMA), 2 all. Copernic, 56270 Ploemeur, France
| | - Boris Eyheraguibel
- Université Clermont Auvergne, Clermont Auvergne INP, CNRS, Institut de Chimie (ICCF), Clermont- Ferrand, France
| | | | - Mireille Pujo-Pay
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), 1 Avenue Fabre, F-66650 Banyuls sur mer, France
| | - Pascal Conan
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), 1 Avenue Fabre, F-66650 Banyuls sur mer, France
| | - Valérie Barbe
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - Stéphane Bruzaud
- Université Bretagne Sud, Institut de Recherche Dupuy de Lôme (IRDL), UMR CNRS 6027, 56321 Lorient, France
| | - Jean-François Ghiglione
- CNRS, Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne (LOMIC), 1 Avenue Fabre, F-66650 Banyuls sur mer, France.
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3
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Lombard F, Bourdin G, Pesant S, Agostini S, Baudena A, Boissin E, Cassar N, Clampitt M, Conan P, Da Silva O, Dimier C, Douville E, Elineau A, Fin J, Flores JM, Ghiglione JF, Hume BCC, Jalabert L, John SG, Kelly RL, Koren I, Lin Y, Marie D, McMinds R, Mériguet Z, Metzl N, Paz-García DA, Pedrotti ML, Poulain J, Pujo-Pay M, Ras J, Reverdin G, Romac S, Rouan A, Röttinger E, Vardi A, Voolstra CR, Moulin C, Iwankow G, Banaigs B, Bowler C, de Vargas C, Forcioli D, Furla P, Galand PE, Gilson E, Reynaud S, Sunagawa S, Sullivan MB, Thomas OP, Troublé R, Thurber RV, Wincker P, Zoccola D, Allemand D, Planes S, Boss E, Gorsky G. Open science resources from the Tara Pacific expedition across coral reef and surface ocean ecosystems. Sci Data 2023; 10:324. [PMID: 37264023 DOI: 10.1038/s41597-022-01757-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 10/10/2022] [Indexed: 06/03/2023] Open
Abstract
The Tara Pacific expedition (2016-2018) sampled coral ecosystems around 32 islands in the Pacific Ocean and the ocean surface waters at 249 locations, resulting in the collection of nearly 58 000 samples. The expedition was designed to systematically study warm-water coral reefs and included the collection of corals, fish, plankton, and seawater samples for advanced biogeochemical, molecular, and imaging analysis. Here we provide a complete description of the sampling methodology, and we explain how to explore and access the different datasets generated by the expedition. Environmental context data were obtained from taxonomic registries, gazetteers, almanacs, climatologies, operational biogeochemical models, and satellite observations. The quality of the different environmental measures has been validated not only by various quality control steps, but also through a global analysis allowing the comparison with known environmental large-scale structures. Such publicly released datasets open the perspective to address a wide range of scientific questions.
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Affiliation(s)
- Fabien Lombard
- Sorbonne Université, Laboratoire d'Océanographie de Villefranche, UMR 7093, CNRS, Institut de la Mer de Villefranche, 06230, Villefranche sur mer, France.
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara GOSEE, 75000, Paris, France.
- Institut Universitaire de France, 75231, Paris, France.
| | - Guillaume Bourdin
- Sorbonne Université, Laboratoire d'Océanographie de Villefranche, UMR 7093, CNRS, Institut de la Mer de Villefranche, 06230, Villefranche sur mer, France
- School of Marine Sciences, University of Maine, Orono, Maine, 04469, USA
| | - Stéphane Pesant
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, CB10 1SD, UK
| | - Sylvain Agostini
- Shimoda Marine Research Center, University of Tsukuba, 5-10-1, Shimoda, Shizuoka, Japan
| | - Alberto Baudena
- Sorbonne Université, Laboratoire d'Océanographie de Villefranche, UMR 7093, CNRS, Institut de la Mer de Villefranche, 06230, Villefranche sur mer, France
| | - Emilie Boissin
- PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Laboratoire d'Excellence CORAIL, Université de Perpignan, 52 Avenue Paul Alduy, 66860, Perpignan, Cedex, France
| | - Nicolas Cassar
- Nicholas School of the Environment, Duke University, Durham, NC, USA
- Laboratoire des Sciences de l'Environnement Marin, UMR 6539 UBO/CNRS/IRD/IFREMER, Institut Universitaire Européen de la Mer, Brest, France
| | - Megan Clampitt
- Université Côte d'Azur, CNRS, INSERM, Institute for Research on Cancer and Aging, Nice (IRCAN), Nice, France
- Université Côte d'Azur, Institut Fédératif de Recherche - Ressources Marines (IFR MARRES), Nice, France
- LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Nice, Monaco
| | - Pascal Conan
- Sorbonne Université, CNRS, Laboratoire d'Océanographie Microbienne, LOMIC, 66650, Banyuls Sur Mer, France
- Sorbonne Université, CNRS, OSU STAMAR - UAR2017, 75252 Paris, France
| | - Ophélie Da Silva
- Sorbonne Université, Laboratoire d'Océanographie de Villefranche, UMR 7093, CNRS, Institut de la Mer de Villefranche, 06230, Villefranche sur mer, France
| | - Céline Dimier
- Sorbonne Université, Laboratoire d'Océanographie de Villefranche, UMR 7093, CNRS, Institut de la Mer de Villefranche, 06230, Villefranche sur mer, France
| | - Eric Douville
- Laboratoire des Sciences du Climat et de l'Environnement, LSCE/IPSL, CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette, France
| | - Amanda Elineau
- Sorbonne Université, Laboratoire d'Océanographie de Villefranche, UMR 7093, CNRS, Institut de la Mer de Villefranche, 06230, Villefranche sur mer, France
| | - Jonathan Fin
- Laboratoire LOCEAN/IPSL, Sorbonne Université-CNRS-IRD-MNHN, Paris, 75005, France
| | - J Michel Flores
- Weizmann Institute of Science, Department of Earth and Planetary Sciences, Rehovot, Israel
| | - Jean-François Ghiglione
- Sorbonne Université, CNRS, Laboratoire d'Océanographie Microbienne, LOMIC, 66650, Banyuls Sur Mer, France
| | | | - Laetitia Jalabert
- Sorbonne Université, Laboratoire d'Océanographie de Villefranche, UMR 7093, CNRS, Institut de la Mer de Villefranche, 06230, Villefranche sur mer, France
| | - Seth G John
- Department of Earth Science, University of Southern California, Los Angeles, CA, USA
| | - Rachel L Kelly
- Department of Earth Science, University of Southern California, Los Angeles, CA, USA
| | - Ilan Koren
- Weizmann Institute of Science, Department of Earth and Planetary Sciences, Rehovot, Israel
| | - Yajuan Lin
- Nicholas School of the Environment, Duke University, Durham, NC, USA
- Laboratoire des Sciences de l'Environnement Marin, UMR 6539 UBO/CNRS/IRD/IFREMER, Institut Universitaire Européen de la Mer, Brest, France
- Environmental Research Center, Duke Kunshan University, Kunshan, China
| | - Dominique Marie
- Sorbonne Université, CNRS, Station Biologique de Roscoff, UMR 7144, AD2M, Roscoff, France
| | - Ryan McMinds
- Université Côte d'Azur, CNRS, INSERM, Institute for Research on Cancer and Aging, Nice (IRCAN), Nice, France
- Université Côte d'Azur, Maison de la Modélisation, de la Simulation et des Interactions (MSI), Nice, France
- Department of Microbiology, Oregon State University, Corvallis, OR, USA
| | - Zoé Mériguet
- Sorbonne Université, Laboratoire d'Océanographie de Villefranche, UMR 7093, CNRS, Institut de la Mer de Villefranche, 06230, Villefranche sur mer, France
| | - Nicolas Metzl
- Laboratoire LOCEAN/IPSL, Sorbonne Université-CNRS-IRD-MNHN, Paris, 75005, France
| | - David A Paz-García
- Centro de Investigaciones Biológicas del Noroeste (CIBNOR), La Paz, Baja California Sur, 23096, México
| | - Maria Luiza Pedrotti
- Sorbonne Université, Laboratoire d'Océanographie de Villefranche, UMR 7093, CNRS, Institut de la Mer de Villefranche, 06230, Villefranche sur mer, France
| | - Julie Poulain
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - Mireille Pujo-Pay
- Sorbonne Université, CNRS, Laboratoire d'Océanographie Microbienne, LOMIC, 66650, Banyuls Sur Mer, France
| | - Joséphine Ras
- Sorbonne Université, Laboratoire d'Océanographie de Villefranche, UMR 7093, CNRS, Institut de la Mer de Villefranche, 06230, Villefranche sur mer, France
| | - Gilles Reverdin
- Laboratoire LOCEAN/IPSL, Sorbonne Université-CNRS-IRD-MNHN, Paris, 75005, France
| | - Sarah Romac
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara GOSEE, 75000, Paris, France
- Sorbonne Université, CNRS, Station Biologique de Roscoff, UMR 7144, AD2M, Roscoff, France
| | - Alice Rouan
- Université Côte d'Azur, CNRS, INSERM, Institute for Research on Cancer and Aging, Nice (IRCAN), Nice, France
- Université Côte d'Azur, Institut Fédératif de Recherche - Ressources Marines (IFR MARRES), Nice, France
- LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Nice, Monaco
| | - Eric Röttinger
- Université Côte d'Azur, CNRS, INSERM, Institute for Research on Cancer and Aging, Nice (IRCAN), Nice, France
- Université Côte d'Azur, Institut Fédératif de Recherche - Ressources Marines (IFR MARRES), Nice, France
- LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Nice, Monaco
| | - Assaf Vardi
- Weizmann Institute of Science, Department of Plant and Environmental Science, Rehovot, Israel
| | | | | | - Guillaume Iwankow
- PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Laboratoire d'Excellence CORAIL, Université de Perpignan, 52 Avenue Paul Alduy, 66860, Perpignan, Cedex, France
| | - Bernard Banaigs
- PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Laboratoire d'Excellence CORAIL, Université de Perpignan, 52 Avenue Paul Alduy, 66860, Perpignan, Cedex, France
| | - Chris Bowler
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara GOSEE, 75000, Paris, France
- Institut de Biologie de l'Ecole Normale Supérieure, Ecole Normale Supérieure, CNRS, INSERM, Université PSL, Paris, France
| | - Colomban de Vargas
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara GOSEE, 75000, Paris, France
- Sorbonne Université, CNRS, Station Biologique de Roscoff, UMR 7144, AD2M, Roscoff, France
| | - Didier Forcioli
- Université Côte d'Azur, CNRS, INSERM, Institute for Research on Cancer and Aging, Nice (IRCAN), Nice, France
- Université Côte d'Azur, Institut Fédératif de Recherche - Ressources Marines (IFR MARRES), Nice, France
- LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Nice, Monaco
| | - Paola Furla
- Université Côte d'Azur, CNRS, INSERM, Institute for Research on Cancer and Aging, Nice (IRCAN), Nice, France
- Université Côte d'Azur, Institut Fédératif de Recherche - Ressources Marines (IFR MARRES), Nice, France
- LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Nice, Monaco
| | - Pierre E Galand
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara GOSEE, 75000, Paris, France
- Sorbonne Université, CNRS, Laboratoire d'Ecogéochimie des Environnements Benthiques, UMR 8222, LECOB, Banyuls-sur-Mer, France
| | - Eric Gilson
- Université Côte d'Azur, CNRS, INSERM, Institute for Research on Cancer and Aging, Nice (IRCAN), Nice, France
- Université Côte d'Azur, Institut Fédératif de Recherche - Ressources Marines (IFR MARRES), Nice, France
- LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Nice, Monaco
- Department of Medical Genetics, CHU, Nice, France
| | - Stéphanie Reynaud
- LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Nice, Monaco
- Centre Scientifique de Monaco, 8 Quai Antoine Ier, MC-98000, Antoine, Monaco
| | - Shinichi Sunagawa
- Department of Biology, Institute of Microbiology and Swiss Institute of Bioinformatics, ETH Zürich, Zurich, Switzerland
| | - Matthew B Sullivan
- Department of Microbiology and Department of Civil, Environmental and Geodetic Engineering, The Ohio State University, Columbus, OH, USA
| | - Olivier P Thomas
- School of Biological and Chemical Sciences, Ryan Institute, University of Galway, University Road, Galway, Ireland
| | | | | | - Patrick Wincker
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - Didier Zoccola
- LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Nice, Monaco
- Centre Scientifique de Monaco, 8 Quai Antoine Ier, MC-98000, Antoine, Monaco
| | - Denis Allemand
- LIA ROPSE, Laboratoire International Associé Université Côte d'Azur - Centre Scientifique de Monaco, Nice, Monaco
- Centre Scientifique de Monaco, 8 Quai Antoine Ier, MC-98000, Antoine, Monaco
| | - Serge Planes
- PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, Laboratoire d'Excellence CORAIL, Université de Perpignan, 52 Avenue Paul Alduy, 66860, Perpignan, Cedex, France
| | - Emmanuel Boss
- School of Marine Sciences, University of Maine, Orono, Maine, 04469, USA
| | - Gaby Gorsky
- Sorbonne Université, Laboratoire d'Océanographie de Villefranche, UMR 7093, CNRS, Institut de la Mer de Villefranche, 06230, Villefranche sur mer, France
- Research Federation for the study of Global Ocean Systems Ecology and Evolution, FR2022/Tara GOSEE, 75000, Paris, France
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4
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Maggioni F, Bell JJ, Pujo-Pay M, Shaffer M, Cerrano C, Lemonnier H, Letourneur Y, Rodolfo-Metalpa R. Sponge organic matter recycling: Reduced detritus production under extreme environmental conditions. Mar Pollut Bull 2023; 190:114869. [PMID: 37023545 DOI: 10.1016/j.marpolbul.2023.114869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 03/01/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
Sponges are a key component of coral reef ecosystems and play an important role in carbon and nutrient cycles. Many sponges are known to consume dissolved organic carbon and transform this into detritus, which moves through detrital food chains and eventually to higher trophic levels via what is known as the sponge loop. Despite the importance of this loop, little is known about how these cycles will be impacted by future environmental conditions. During two years (2018 and 2020), we measured the organic carbon, nutrient recycling, and photosynthetic activity of the massive HMA, photosymbiotic sponge Rhabdastrella globostellata at the natural laboratory of Bouraké in New Caledonia, where the physical and chemical composition of seawater regularly change according to the tide. We found that while sponges experienced acidification and low dissolved oxygen at low tide in both sampling years, a change in organic carbon recycling whereby sponges stopped producing detritus (i.e., the sponge loop) was only found when sponges also experienced higher temperature in 2020. Our findings provide new insights into how important trophic pathways may be affected by changing ocean conditions.
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Affiliation(s)
- Federica Maggioni
- ENTROPIE, IRD, Université de la Réunion, CNRS, IFREMER, Université de Nouvelle-Calédonie, Nouméa 98800, New Caledonia; Labex ICONA International CO(2) Natural Analogues Network, JSPS, Japan.
| | - James J Bell
- School of Biological Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
| | - Mireille Pujo-Pay
- Sorbonne Université, CNRS, Laboratoire d'Océanographie Microbienne, LOMIC, F-66650 Banyuls-sur-Mer, France
| | - Megan Shaffer
- School of Biological Sciences, Victoria University of Wellington, P.O. Box 600, Wellington, New Zealand
| | - Carlo Cerrano
- Department of Life and Environmental Sciences (DiSVA), Polytechnic University of Marche, Ancona, Italy
| | - Hugues Lemonnier
- ENTROPIE, IRD, Université de la Réunion, CNRS, IFREMER, Université de Nouvelle-Calédonie, Nouméa 98800, New Caledonia
| | - Yves Letourneur
- ENTROPIE, IRD, Université de la Réunion, CNRS, IFREMER, Université de Nouvelle-Calédonie, Nouméa 98800, New Caledonia
| | - Riccardo Rodolfo-Metalpa
- ENTROPIE, IRD, Université de la Réunion, CNRS, IFREMER, Université de Nouvelle-Calédonie, Nouméa 98800, New Caledonia; Labex ICONA International CO(2) Natural Analogues Network, JSPS, Japan
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5
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Sanchez R, Groc M, Vuillemin R, Pujo-Pay M, Raimbault V. Development of a Frugal, In Situ Sensor Implementing a Ratiometric Method for Continuous Monitoring of Turbidity in Natural Waters. Sensors (Basel) 2023; 23:1897. [PMID: 36850493 PMCID: PMC9962470 DOI: 10.3390/s23041897] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 06/18/2023]
Abstract
Turbidity is a commonly used indicator of water quality in continental and marine waters and is mostly caused by suspended and colloidal particles such as organic and inorganic particles. Many methods are available for the measurement of turbidity, ranging from the Secchi disk to infrared light-based benchtop or in situ turbidimeters as well as acoustic methods. The operational methodologies of the large majority of turbidity instruments involve the physics of light scattering and absorption by suspended particles when light is passed through a sample. As such, in the case of in situ monitoring in water bodies, the measurement of turbidity is highly influenced by external light and biofouling. Our motivation for this project is to propose an open-source, low-cost in situ turbidity sensor with a suitable sensitivity and operating range to operate in low-to-medium-turbidity natural waters. This prototype device combines two angular photodetectors and two infrared light sources with different positions, resulting in two different types of light detection, namely nephelometric (i.e., scattering) and attenuation light, according to the ISO 7027 method. The mechanical design involves 3D-printed parts by stereolithography, which are compatible with commercially available waterproof enclosures, thus ensuring easy integration for future users. An effort was made to rely on mostly off-the-shelf electronic components to encourage replication of the system, with the use of a highly integrated photometric front-end commonly used in portable photoplethysmography systems. The sensor was tested in laboratory conditions against a commercial benchtop turbidimeter with Formazin standards. The monitoring results were analyzed, obtaining a linear trendline from 0 to 50 Nephelometric Turbidity Unit (NTU) and an accuracy of +/-0.4 NTU in the 0 to 10 NTU range with a response time of less than 100 ms.
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Affiliation(s)
- Raul Sanchez
- LAAS-CNRS, Université de Toulouse, CNRS, 31400 Toulouse, France
| | - Michel Groc
- Sorbonne Université, CNRS, FR3724, Observatoire Océanologique de Banyuls, 66651 Banyuls-sur-Mer, France
| | - Renaud Vuillemin
- Sorbonne Université, CNRS, FR3724, Observatoire Océanologique de Banyuls, 66651 Banyuls-sur-Mer, France
| | - Mireille Pujo-Pay
- Sorbonne Université, CNRS, UMR7621, Laboratoire d’Océanographie Microbienne (LOMIC), 66651 Banyuls-sur-Mer, France
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Conan P, Philip L, Ortega-Retuerta E, Odobel C, Duran C, Pandin C, Giraud C, Meistertzheim AL, Barbe V, Ter Hall A, Pujo-Pay M, Ghiglione JF. Evidence of coupled autotrophy and heterotrophy on plastic biofilms and its influence on surrounding seawater. Environ Pollut 2022; 315:120463. [PMID: 36272613 DOI: 10.1016/j.envpol.2022.120463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/22/2022] [Accepted: 10/15/2022] [Indexed: 06/16/2023]
Abstract
We measured phytoplankton primary production and heterotrophic bacterial activities on microplastics and seawater in the Northwestern Mediterranean Sea during two 3-month spring periods over 2 consecutive years. Microorganisms growing on a 5 mm diameter low density polyethylene films (LDPE; 200 μm thick) faced two contrasting conditions depending on the year. Spring 2018 was characterized by consistent nutrient inputs and bloom development. In spring 2019, nutrient inputs and bloom were low. For the first time, we observed a clear coupling between primary production and heterotrophic prokaryote production on microplastics during both years, but with different intensity between years that reflected the crucial role of the trophic environmental conditions (nutrient supply) in shaping microbial activities on plastics. We found that high primary production on plastics could support the whole (net autotrophy) or the majority of the bacterial carbon demand needed for heterotrophic activities, supplemented by other carbon sources if surrounding waters are highly productive. We propose that microbial activity on plastics influences the microbial community in the surrounding seawater, especially when the environmental conditions are less favorable. An illustrative image of the role of plastics in the environment could be that of an inverter in an electrical circuit that mitigates both positive and negative variations. Our results highlight the potential role of the plastisphere in shaping biogeochemical cycles in the context of increasing amounts of plastic particles in the marine environment.
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Affiliation(s)
- Pascal Conan
- Sorbonne Université, CNRS LOMIC - UMR 7621, Laboratoire d'Océanographie Microbienne, 1 Avenue Pierre Fabre, 66650, Banyuls sur Mer, France; Sorbonne Université, CNRS OSU STAMAR - UAR2017, 4 Place Jussieu, 75252, Paris cedex 05, France.
| | - Léna Philip
- Sorbonne Université, CNRS LOMIC - UMR 7621, Laboratoire d'Océanographie Microbienne, 1 Avenue Pierre Fabre, 66650, Banyuls sur Mer, France; SAS Plastic@Sea, Sorbonne Université (UPMC), CNRS LOMIC - UMR 7621, Laboratoire d'Océanographie Microbienne, 1 Avenue Pierre Fabre, 66650, Banyuls sur Mer, France
| | - Eva Ortega-Retuerta
- Sorbonne Université, CNRS LOMIC - UMR 7621, Laboratoire d'Océanographie Microbienne, 1 Avenue Pierre Fabre, 66650, Banyuls sur Mer, France
| | - Charlène Odobel
- Sorbonne Université, CNRS LOMIC - UMR 7621, Laboratoire d'Océanographie Microbienne, 1 Avenue Pierre Fabre, 66650, Banyuls sur Mer, France
| | - Clélia Duran
- Sorbonne Université, CNRS LOMIC - UMR 7621, Laboratoire d'Océanographie Microbienne, 1 Avenue Pierre Fabre, 66650, Banyuls sur Mer, France
| | - Caroline Pandin
- Sorbonne Université, CNRS LOMIC - UMR 7621, Laboratoire d'Océanographie Microbienne, 1 Avenue Pierre Fabre, 66650, Banyuls sur Mer, France
| | - Carolane Giraud
- Sorbonne Université, CNRS LOMIC - UMR 7621, Laboratoire d'Océanographie Microbienne, 1 Avenue Pierre Fabre, 66650, Banyuls sur Mer, France; CNRS, UMR 9220 ENTROPIE, Ifremer (LEAD-NC), IRD, Univ Nouvelle-Calédonie, Univ La Réunion, Nouméa, New Caledonia
| | - Anne-Leila Meistertzheim
- SAS Plastic@Sea, Sorbonne Université (UPMC), CNRS LOMIC - UMR 7621, Laboratoire d'Océanographie Microbienne, 1 Avenue Pierre Fabre, 66650, Banyuls sur Mer, France
| | - Valérie Barbe
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, 91057, Evry, France
| | - Alexandra Ter Hall
- CNRS, Université de Toulouse, Laboratoire des Interactions Moléculaires et Réactivité Chimique et Photochimique (IMRCP), UMR, 5623, Toulouse, France
| | - Mireille Pujo-Pay
- Sorbonne Université, CNRS LOMIC - UMR 7621, Laboratoire d'Océanographie Microbienne, 1 Avenue Pierre Fabre, 66650, Banyuls sur Mer, France
| | - Jean-François Ghiglione
- Sorbonne Université, CNRS LOMIC - UMR 7621, Laboratoire d'Océanographie Microbienne, 1 Avenue Pierre Fabre, 66650, Banyuls sur Mer, France
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7
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Cheng J, Eyheraguibel B, Jacquin J, Pujo-Pay M, Conan P, Barbe V, Hoypierres J, Deligey G, Halle AT, Bruzaud S, Ghiglione JF, Meistertzheim AL. Biodegradability under marine conditions of bio-based and petroleum-based polymers as substitutes of conventional microparticles. Polym Degrad Stab 2022. [DOI: 10.1016/j.polymdegradstab.2022.110159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Jacquin J, Callac N, Cheng J, Giraud C, Gorand Y, Denoual C, Pujo-Pay M, Conan P, Meistertzheim AL, Barbe V, Bruzaud S, Ghiglione JF. Microbial Diversity and Activity During the Biodegradation in Seawater of Various Substitutes to Conventional Plastic Cotton Swab Sticks. Front Microbiol 2021; 12:604395. [PMID: 34335485 PMCID: PMC8321090 DOI: 10.3389/fmicb.2021.604395] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 05/12/2021] [Indexed: 11/13/2022] Open
Abstract
The European Parliament recently approved a new law banning single-use plastic items for 2021 such as plastic plates, cutlery, straws, cotton swabs, and balloon sticks. Transition to a bioeconomy involves the substitution of these banned products with biodegradable materials. Several materials such as polylactic acid (PLA), polybutylene adipate terephthalate (PBAT), poly(butylene succinate) (PBS), polyhydroxybutyrate-valerate (PHBV), Bioplast, and Mater-Bi could be good candidates to substitute cotton swabs, but their biodegradability needs to be tested under marine conditions. In this study, we described the microbial life growing on these materials, and we evaluated their biodegradability in seawater, compared with controls made of non-biodegradable polypropylene (PP) or biodegradable cellulose. During the first 40 days in seawater, we detected clear changes in bacterial diversity (Illumina sequencing of 16S rRNA gene) and heterotrophic activity (incorporation of 3H-leucine) that coincided with the classic succession of initial colonization, growth, and maturation phases of a biofilm. Biodegradability of the cotton swab sticks was then tested during another 94 days under strict diet conditions with the different plastics as sole carbon source. The drastic decrease of the bacterial activity on PP, PLA, and PBS suggested no bacterial attack of these materials, whereas the bacterial activity in PBAT, Bioplast, Mater-Bi, and PHBV presented similar responses to the cellulose positive control. Interestingly, the different bacterial diversity trends observed for biodegradable vs. non-biodegradable plastics allowed to describe potential new candidates involved in the degradation of these materials under marine conditions. This better understanding of the bacterial diversity and activity dynamics during the colonization and biodegradation processes contributes to an expanding baseline to understand plastic biodegradation in marine conditions and provide a foundation for further decisions on the replacement of the banned single-used plastics.
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Affiliation(s)
- Justine Jacquin
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Sorbonne Université, Paris, France.,Innovation Plasturgie et Composites, Biopole Clermont Limagne, Saint-Beauzire, France
| | - Nolwenn Callac
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Sorbonne Université, Paris, France.,CNRS, UMR 9220 ENTROPIE, Ifremer (LEAD-NC), IRD, Univ Nouvelle-Calédonie, Univ La Réunion, Nouméa, New Caledonia
| | - Jingguang Cheng
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Sorbonne Université, Paris, France
| | - Carolane Giraud
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Sorbonne Université, Paris, France.,CNRS, UMR 9220 ENTROPIE, Ifremer (LEAD-NC), IRD, Univ Nouvelle-Calédonie, Univ La Réunion, Nouméa, New Caledonia
| | - Yonko Gorand
- Plateforme EnRMAT, Laboratoire PROMES, Rembla de la Thermodynamique, Perpignan, France
| | - Clement Denoual
- UMR CNRS 6027, Institut de Recherche Dupuy de Lôme (IRDL), Université de Bretagne-Sud, Lorient, France
| | - Mireille Pujo-Pay
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Sorbonne Université, Paris, France
| | - Pascal Conan
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Sorbonne Université, Paris, France
| | | | - Valerie Barbe
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - Stéphane Bruzaud
- UMR CNRS 6027, Institut de Recherche Dupuy de Lôme (IRDL), Université de Bretagne-Sud, Lorient, France
| | - Jean-François Ghiglione
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Sorbonne Université, Paris, France
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Cheng J, Jacquin J, Conan P, Pujo-Pay M, Barbe V, George M, Fabre P, Bruzaud S, Ter Halle A, Meistertzheim AL, Ghiglione JF. Relative Influence of Plastic Debris Size and Shape, Chemical Composition and Phytoplankton-Bacteria Interactions in Driving Seawater Plastisphere Abundance, Diversity and Activity. Front Microbiol 2021; 11:610231. [PMID: 33519764 PMCID: PMC7838358 DOI: 10.3389/fmicb.2020.610231] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 12/11/2020] [Indexed: 01/04/2023] Open
Abstract
The thin film of life that inhabits all plastics in the oceans, so-called "plastisphere," has multiple effects on the fate and impacts of plastic in the marine environment. Here, we aimed to evaluate the relative influence of the plastic size, shape, chemical composition, and environmental changes such as a phytoplankton bloom in shaping the plastisphere abundance, diversity and activity. Polyethylene (PE) and polylactide acid (PLA) together with glass controls in the forms of meso-debris (18 mm diameter) and large-microplastics (LMP; 3 mm diameter), as well as small-microplastics (SMP) of 100 μm diameter with spherical or irregular shapes were immerged in seawater during 2 months. Results of bacterial abundance (confocal microscopy) and diversity (16S rRNA Illumina sequencing) indicated that the three classical biofilm colonization phases (primo-colonization after 3 days; growing phase after 10 days; maturation phase after 30 days) were not influenced by the size and the shape of the materials, even when a diatom bloom (Pseudo-nitzschia sp.) occurred after the first month of incubation. However, plastic size and shape had an effect on bacterial activity (3H leucine incorporation). Bacterial communities associated with the material of 100 μm size fraction showed the highest activity compared to all other material sizes. A mature biofilm developed within 30 days on all material types, with higher bacterial abundance on the plastics compared to glass, and distinct bacterial assemblages were detected on each material type. The diatom bloom event had a great impact on the plastisphere of all materials, resulting in a drastic change in diversity and activity. Our results showed that the plastic size and shape had relatively low influence on the plastisphere abundance, diversity, and activity, as compared to the plastic composition or the presence of a phytoplankton bloom.
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Affiliation(s)
- Jingguang Cheng
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
| | - Justine Jacquin
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
| | - Pascal Conan
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
| | - Mireille Pujo-Pay
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
| | - Valérie Barbe
- Génomique Métabolique, Genoscope, Institut François Jacob, CEA, CNRS, Univ Evry, Université Paris-Saclay, Evry, France
| | - Matthieu George
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-UM, Place Eugène Bataillon, Montpellier, France
| | - Pascale Fabre
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-UM, Place Eugène Bataillon, Montpellier, France
| | - Stéphane Bruzaud
- Institut de Recherche Dupuy de Lôme (IRDL), Université Bretagne Sud, UMR CNRS 6027, Lorient, France
| | | | | | - Jean-François Ghiglione
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
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Sánchez-Pérez ED, Pujo-Pay M, Ortega-Retuerta E, Conan P, Peters F, Marrasé C. Mismatched dynamics of dissolved organic carbon and chromophoric dissolved organic matter in the coastal NW Mediterranean Sea. Sci Total Environ 2020; 746:141190. [PMID: 32795760 DOI: 10.1016/j.scitotenv.2020.141190] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
Coastal marine ecosystems are strongly influenced by different occasional events, such as intense winds, mixing, rain and river discharges. These events can directly or indirectly cause changes in dissolved organic matter (DOM) quality through a cascade of different biotic and abiotic processes. Changes in DOM quality are often associated with changes in DOM optical properties. Thus, examining the dynamics of chromophoric DOM (CDOM) can provide valuable information about biological and physical processes that have occurred in the ecosystem. Episodic meteorological events, particularly in temperate areas, appear very abruptly and induce very rapid responses; therefore, high time-resolved measurements are needed to capture them. We used a weekly sampling scheme to characterize DOM and nutrient dynamics in the NW Mediterranean coastal station 'SOLA'. From February 2013 to April 2014, we measured several physical and chemical variables including temperature, salinity, inorganic nutrients, chlorophyll a dissolved organic carbon (DOC), CDOM and fluorescent DOM (FDOM). During this period, two extremely high fresh water intrusions greatly influenced the dynamics of some DOM fractions, in particular the FDOM. Inorganic nutrients and chlorophyll a showed seasonal patterns: A winter period characterized by a high nutrient concentration in surface waters favored the phytoplankton spring bloom; then, summer stratification extended until autumn. This stratification led to nutrient depletion and, consequently, lower chlorophyll a values in the photic zone. The CDOM and FDOM optical active fractions did not follow temporal trends similar to total DOC. This was likely because the potential sources and sinks of these DOM pools are microbial activity and light exposure, and these were acting simultaneously but in opposite directions. Interestingly, DOC exhibited the highest concentrations in summer, coinciding with nutrient and chlorophyll a minima. To explain this mismatch, we propose a sequence of abiotic and biotic phenomena that drive DOC temporal dynamics.
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Affiliation(s)
- Elvia D Sánchez-Pérez
- ICM-CSIC, Institut de Ciències del Mar, Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalunya, Spain; Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France.
| | - Mireille Pujo-Pay
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-666650 Banyuls/mer, France
| | - Eva Ortega-Retuerta
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-666650 Banyuls/mer, France
| | - Pascal Conan
- Sorbonne Université, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Francesc Peters
- ICM-CSIC, Institut de Ciències del Mar, Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalunya, Spain
| | - Cèlia Marrasé
- ICM-CSIC, Institut de Ciències del Mar, Passeig Marítim de la Barceloneta 37-49, 08003 Barcelona, Catalunya, Spain
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Tamborski J, van Beek P, Conan P, Pujo-Pay M, Odobel C, Ghiglione JF, Seidel JL, Arfib B, Diego-Feliu M, Garcia-Orellana J, Szafran A, Souhaut M. Submarine karstic springs as a source of nutrients and bioactive trace metals for the oligotrophic Northwest Mediterranean Sea. Sci Total Environ 2020; 732:139106. [PMID: 32422479 DOI: 10.1016/j.scitotenv.2020.139106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/09/2020] [Accepted: 04/27/2020] [Indexed: 06/11/2023]
Abstract
Groundwater springs in karstified carbonate aquifers are known to transport carbon, nutrients and trace elements to the coastal ocean. The biogeochemical significance of submarine karstic springs and their impact on coastal primary production are often difficult to quantify. We investigated several karstic springs, including the first-order Port-Miou spring, in an urbanized watershed that is also severely impacted by sewage effluent (Calanques of Marseille-Cassis, France). Karstic springs were elevated in major nutrients and bioactive trace metals over Mediterranean seawater, with relatively low concentration ranges. Groundwater NO3- was likely derived from atmosphere-aquifer interactions, while DOC:DON ratios reveal that NO2- and NH4+ was autochthonously produced during mixing between karst groundwater and seawater. Submarine groundwater discharge (SGD) during March 2018 (wet season, baseflow conditions) was 6.7 ± 2.0 m3 s-1 for the entire investigated coastline, determined from simultaneous 224Ra and 226Ra mass balances. The contribution of groundwater PO43-, the major limiting nutrient of the Mediterranean Sea, sustained only 1% of primary production adjacent to sewage outfall, but between 7 and 100% of the local primary production in areas that were not impacted by sewage. Groundwater and seawater Fe:DIN and Fe:DIP ratios suggest that Fe was not a limiting micro-nutrient during the period of study, where bioactive trace metal fluxes were dominated by sewage and atmospheric deposition, although excess Fe from groundwater may locally enhance N fixation. Groundwater solute fluxes may easily vary by a factor of two or more over time because karst aquifers are sensitive to precipitation, as is the case of the regional carbonate karstified aquifer of Port-Miou, highlighting the critical importance of properly characterizing nutrient and trace metal inputs in these coastal environments.
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Affiliation(s)
- Joseph Tamborski
- LEGOS, Laboratoire d'Etudes en Géophysique et Océanographie Spatiales, Université de Toulouse, CNES, CNRS, IRD, UPS, Observatoire Midi Pyrénées, 14 Ave Edouard Belin, 31400 Toulouse, France.
| | - Pieter van Beek
- LEGOS, Laboratoire d'Etudes en Géophysique et Océanographie Spatiales, Université de Toulouse, CNES, CNRS, IRD, UPS, Observatoire Midi Pyrénées, 14 Ave Edouard Belin, 31400 Toulouse, France
| | - Pascal Conan
- LOMIC, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, Sorbonne Université, CNRS, UPMC Univ Paris 06, UMR7621, 66650 Banyuls/Mer, France
| | - Mireille Pujo-Pay
- LOMIC, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, Sorbonne Université, CNRS, UPMC Univ Paris 06, UMR7621, 66650 Banyuls/Mer, France
| | - Charlene Odobel
- LOMIC, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, Sorbonne Université, CNRS, UPMC Univ Paris 06, UMR7621, 66650 Banyuls/Mer, France
| | - Jean-François Ghiglione
- LOMIC, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, Sorbonne Université, CNRS, UPMC Univ Paris 06, UMR7621, 66650 Banyuls/Mer, France
| | - Jean-Luc Seidel
- HydroSciences Montpellier, UMR 5569 - UM2 - CNRS - IRD - UM1 Place Eugène Bataillon -CC MSE, 34095 Montpellier Cedex 5, France
| | - Bruno Arfib
- Aix Marseille Université, CNRS, IRD, INRAE, Coll France, CEREGE, Aix-en-Provence, France
| | - Marc Diego-Feliu
- Institut de Ciència i Tecnologia Ambientals (ICTA-UAB), Universitat Autònoma de Barcelona, Bellaterra, Catalunya, Spain
| | - Jordi Garcia-Orellana
- Institut de Ciència i Tecnologia Ambientals (ICTA-UAB), Universitat Autònoma de Barcelona, Bellaterra, Catalunya, Spain; Department de Física, Universitat Autònoma de Barcelona, Bellaterra, Catalunya, Spain
| | - Armand Szafran
- LEGOS, Laboratoire d'Etudes en Géophysique et Océanographie Spatiales, Université de Toulouse, CNES, CNRS, IRD, UPS, Observatoire Midi Pyrénées, 14 Ave Edouard Belin, 31400 Toulouse, France
| | - Marc Souhaut
- LEGOS, Laboratoire d'Etudes en Géophysique et Océanographie Spatiales, Université de Toulouse, CNES, CNRS, IRD, UPS, Observatoire Midi Pyrénées, 14 Ave Edouard Belin, 31400 Toulouse, France
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Jacquin J, Cheng J, Odobel C, Pandin C, Conan P, Pujo-Pay M, Barbe V, Meistertzheim AL, Ghiglione JF. Microbial Ecotoxicology of Marine Plastic Debris: A Review on Colonization and Biodegradation by the "Plastisphere". Front Microbiol 2019; 10:865. [PMID: 31073297 PMCID: PMC6497127 DOI: 10.3389/fmicb.2019.00865] [Citation(s) in RCA: 182] [Impact Index Per Article: 36.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 04/04/2019] [Indexed: 01/09/2023] Open
Abstract
Over the last decades, it has become clear that plastic pollution presents a global societal and environmental challenge given its increasing presence in the oceans. A growing literature has focused on the microbial life growing on the surfaces of these pollutants called the "plastisphere," but the general concepts of microbial ecotoxicology have only rarely been integrated. Microbial ecotoxicology deals with (i) the impact of pollutants on microbial communities and inversely (ii) how much microbes can influence their biodegradation. The goal of this review is to enlighten the growing literature of the last 15 years on microbial ecotoxicology related to plastic pollution in the oceans. First, we focus on the impact of plastic on marine microbial life and on the various functions it ensures in the ecosystems. In this part, we also discuss the driving factors influencing biofilm development on plastic surfaces and the potential role of plastic debris as vector for dispersal of harmful pathogen species. Second, we give a critical view of the extent to which marine microorganisms can participate in the decomposition of plastic in the oceans and of the relevance of current standard tests for plastic biodegradability at sea. We highlight some examples of metabolic pathways of polymer biodegradation. We conclude with several questions regarding gaps in current knowledge of plastic biodegradation by marine microorganisms and the identification of possible directions for future research.
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Affiliation(s)
- Justine Jacquin
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
| | - Jingguang Cheng
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
| | - Charlène Odobel
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
| | - Caroline Pandin
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
| | - Pascal Conan
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
| | - Mireille Pujo-Pay
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
| | - Valérie Barbe
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
- Génomique Métabolique, Genoscope, Institut de Biologie François Jacob, Commissariat á I’Énergie Atomique (CEA), CNRS, Université Evry, Université Paris-Saclay, Évry, France
| | - Anne-Leila Meistertzheim
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
- Plastic@Sea, Observatoire Océanographique de Banyuls-sur-Mer, Banyuls-sur-Mer, France
| | - Jean-François Ghiglione
- UMR 7621, CNRS, Laboratoire d’Océanographie Microbienne, Observatoire Océanologique de Banyuls-sur-Mer, Sorbonne Université, Banyuls-sur-Mer, France
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Dussud C, Meistertzheim AL, Conan P, Pujo-Pay M, George M, Fabre P, Coudane J, Higgs P, Elineau A, Pedrotti ML, Gorsky G, Ghiglione JF. Evidence of niche partitioning among bacteria living on plastics, organic particles and surrounding seawaters. Environ Pollut 2018; 236:807-816. [PMID: 29459335 DOI: 10.1016/j.envpol.2017.12.027] [Citation(s) in RCA: 189] [Impact Index Per Article: 31.5] [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: 05/29/2017] [Revised: 12/07/2017] [Accepted: 12/07/2017] [Indexed: 05/20/2023]
Abstract
Plastic pollution is widespread in ocean ecosystems worldwide, but it is unknown if plastic offers a unique habitat for bacteria compared to communities in the water column and attached to naturally-occurring organic particles. The large set of samples taken during the Tara-Mediterranean expedition revealed for the first time a clear niche partitioning between free-living (FL), organic particle-attached (PA) and the recently introduced plastic marine debris (PMD). Bacterial counts in PMD presented higher cell enrichment factors than generally observed for PA fraction, when compared to FL bacteria in the surrounding waters. Taxonomic diversity was also higher in the PMD communities, where higher evenness indicated a favorable environment for a very large number of species. Cyanobacteria were particularly overrepresented in PMD, together with essential functions for biofilm formation and maturation. The community distinction between the three habitats was consistent across the large-scale sampling in the Western Mediterranean basin. 'Plastic specific bacteria' recovered only on the PMD represented half of the OTUs, thus forming a distinct habitat that should be further considered for understanding microbial biodiversity in changing marine ecosystems.
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Affiliation(s)
- C Dussud
- Sorbonne Universités, CNRS, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Banyuls sur mer, France
| | - A L Meistertzheim
- Sorbonne Universités, CNRS, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Banyuls sur mer, France
| | - P Conan
- Sorbonne Universités, CNRS, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Banyuls sur mer, France
| | - M Pujo-Pay
- Sorbonne Universités, CNRS, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Banyuls sur mer, France
| | - M George
- Laboratoire Charles Coulomb (L2C), Univ. Montpellier, CNRS, Montpellier, France
| | - P Fabre
- Laboratoire Charles Coulomb (L2C), Univ. Montpellier, CNRS, Montpellier, France
| | - J Coudane
- Institut des Biomolécules Max Mousseron, CNRS UMR5247, Université de Montpellier, Ecole Nationale Supérieure de Chimie de Montpellier, BP 14491, F-34093, Montpellier cedex5, France
| | - P Higgs
- Symphony Environmental Ltd, Borehamwood, Hertfordshire WD6 1JD, UK
| | - A Elineau
- Sorbonne Universités, CNRS, UPMC Univ Paris 06, UMR 7093, Laboratoire d'Océanographie de Villefranche, Villefranche sur mer, France
| | - M L Pedrotti
- Sorbonne Universités, CNRS, UPMC Univ Paris 06, UMR 7093, Laboratoire d'Océanographie de Villefranche, Villefranche sur mer, France
| | - G Gorsky
- Sorbonne Universités, CNRS, UPMC Univ Paris 06, UMR 7093, Laboratoire d'Océanographie de Villefranche, Villefranche sur mer, France
| | - J F Ghiglione
- Sorbonne Universités, CNRS, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Banyuls sur mer, France.
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Reoyo-Prats B, Aubert D, Menniti C, Ludwig W, Sola J, Pujo-Pay M, Conan P, Verneau O, Palacios C. Multicontamination phenomena occur more often than expected in Mediterranean coastal watercourses: Study case of the Têt River (France). Sci Total Environ 2017; 579:10-21. [PMID: 27871755 DOI: 10.1016/j.scitotenv.2016.11.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 11/02/2016] [Accepted: 11/03/2016] [Indexed: 06/06/2023]
Abstract
Contaminants found in watercourses are not only the result of anthropogenic activities but also depend on river's seasonal hydrodynamics. This is particularly true in Mediterranean climate regions where long dry periods are interrupted by strong rainfalls. Storm events remobilize particles from soils and sediments and, as a consequence, the load of particulate matter in rivers can be quite considerable, severely affecting water quality. Nevertheless, an absence of fieldwork studies exists concerning the simultaneous dynamics of mixtures of pollutants in river waters, particularly during strong rainfalls and floods. Our study assessed the concentrations of six families of pollutants, including pesticides, at these events, and compared them to those observed at drought sampling periods. We have used as model a typical Mediterranean coastal river from Southeast France, the Têt River, whose hydrodynamics and major elements fluxes have been fairly investigated. As expected, our results show that chemical mixtures due to human activities occur and that they are particularly relevant during storm events. But the results of our study argue that exceptional multicontamination phenomena actually happen more often than expected because they are linked to recurrent sudden intense rainfall events in the Mediterranean. In particular, combined sewer overflows are responsible for this major issue in urbanized areas, whereas runoff and leaching will be the most important sources of pollutant mixtures occurring at flood flow peak. After an overview of the sources responsible for chronic multiple stressors events in regions under a Mediterranean climate regime worldwide, we revisit best management measures to reduce risks from the presence of chemical mixtures in the environment.
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Affiliation(s)
- Brice Reoyo-Prats
- Univ. Perpignan Via Domitia (UPVD), CEFREM, UMR5110, F-66860, Perpignan, France; CNRS, CEFREM, UMR5110, F-66860 Perpignan, France
| | - Dominique Aubert
- Univ. Perpignan Via Domitia (UPVD), CEFREM, UMR5110, F-66860, Perpignan, France; CNRS, CEFREM, UMR5110, F-66860 Perpignan, France
| | - Christophe Menniti
- Univ. Perpignan Via Domitia (UPVD), CEFREM, UMR5110, F-66860, Perpignan, France; CNRS, CEFREM, UMR5110, F-66860 Perpignan, France
| | - Wolfgang Ludwig
- Univ. Perpignan Via Domitia (UPVD), CEFREM, UMR5110, F-66860, Perpignan, France; CNRS, CEFREM, UMR5110, F-66860 Perpignan, France
| | - Jennifer Sola
- Univ. Perpignan Via Domitia (UPVD), CEFREM, UMR5110, F-66860, Perpignan, France; CNRS, CEFREM, UMR5110, F-66860 Perpignan, France
| | - Mireille Pujo-Pay
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR7621, Laboratoire d'Océanographie Microbienne (LOMIC), Observatoire Océanologique, F-66650 Banyuls sur Mer, France
| | - Pascal Conan
- UPMC Univ. Paris 06, Observatoire Océanologique, F-66650 Banyuls/Mer, France; Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR7621, Laboratoire d'Océanographie Microbienne (LOMIC), Observatoire Océanologique, F-66650 Banyuls sur Mer, France
| | - Olivier Verneau
- Univ. Perpignan Via Domitia (UPVD), CEFREM, UMR5110, F-66860, Perpignan, France; CNRS, CEFREM, UMR5110, F-66860 Perpignan, France; University for Environmental Sciences and Management, North-West University, ZA-2520 Potchefstroom, South Africa
| | - Carmen Palacios
- Univ. Perpignan Via Domitia (UPVD), CEFREM, UMR5110, F-66860, Perpignan, France; CNRS, CEFREM, UMR5110, F-66860 Perpignan, France.
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Severin T, Sauret C, Boutrif M, Duhaut T, Kessouri F, Oriol L, Caparros J, Pujo-Pay M, Durrieu de Madron X, Garel M, Tamburini C, Conan P, Ghiglione JF. Impact of an intense water column mixing (0-1500 m) on prokaryotic diversity and activities during an open-ocean convection event in the NW Mediterranean Sea. Environ Microbiol 2016; 18:4378-4390. [DOI: 10.1111/1462-2920.13324] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tatiana Severin
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
| | - Caroline Sauret
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
| | - Mehdi Boutrif
- Aix-Marseille Université, CNRS, Université de Toulon, IRD, MIO UM 110; 13288 Marseille France
- Université du Sud Toulon-Var, Mediterranean Institute of Oceanography (MIO); 83957 La Garde Cedex France CNRS-INSU/IRD UM 110
| | - Thomas Duhaut
- LA, CNRS, Université de Toulouse; 14 avenue Edouard Belin 31400 Toulouse France
| | - Fayçal Kessouri
- LA, CNRS, Université de Toulouse; 14 avenue Edouard Belin 31400 Toulouse France
| | - Louise Oriol
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
| | - Jocelyne Caparros
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
| | - Mireille Pujo-Pay
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
| | | | - Marc Garel
- Aix-Marseille Université, CNRS, Université de Toulon, IRD, MIO UM 110; 13288 Marseille France
- Université du Sud Toulon-Var, Mediterranean Institute of Oceanography (MIO); 83957 La Garde Cedex France CNRS-INSU/IRD UM 110
| | - Christian Tamburini
- Aix-Marseille Université, CNRS, Université de Toulon, IRD, MIO UM 110; 13288 Marseille France
- Université du Sud Toulon-Var, Mediterranean Institute of Oceanography (MIO); 83957 La Garde Cedex France CNRS-INSU/IRD UM 110
| | - Pascal Conan
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
| | - Jean-François Ghiglione
- Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique; F-66650 Banyuls/mer France
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16
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Sauret C, Tedetti M, Guigue C, Dumas C, Lami R, Pujo-Pay M, Conan P, Goutx M, Ghiglione JF. Influence of PAHs among other coastal environmental variables on total and PAH-degrading bacterial communities. Environ Sci Pollut Res Int 2016; 23:4242-4256. [PMID: 26122564 DOI: 10.1007/s11356-015-4768-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 02/10/2015] [Accepted: 05/21/2015] [Indexed: 06/04/2023]
Abstract
We evaluated the relative impact of anthropogenic polycyclic aromatic hydrocarbons (PAHs) among biogeochemical variables on total, metabolically active, and PAH bacterial communities in summer and winter in surface microlayer (SML) and subsurface seawaters (SSW) across short transects along the NW Mediterranean coast from three harbors, one wastewater effluent, and one nearshore observatory reference site. At both seasons, significant correlations were found between dissolved total PAH concentrations and PAH-degrading bacteria that formed a gradient from the shore to nearshore waters. Accumulation of PAH degraders was particularly high in the SML, where PAHs accumulated. Harbors and wastewater outfalls influenced drastically and in a different way the total and active bacterial community structure, but they only impacted the communities from the nearshore zone (<2 km from the shore). By using direct multivariate statistical analysis, we confirmed the significant effect of PAH concentrations on the spatial and temporal dynamic of total and active communities in this area, but this effect was putted in perspective by the importance of other biogeochemical variables.
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Affiliation(s)
- Caroline Sauret
- UPMC Univ Paris 06, CNRS, Laboratoire d'Océanographie Microbienne (LOMIC), Observatoire Océanologique, Sorbonne Universités, F-66650, Banyuls/mer, France
| | - Marc Tedetti
- Aix Marseille Université, CNRS, Université de Toulon, IRD, MIO UM 110, 13288, Marseille, France
| | - Catherine Guigue
- Aix Marseille Université, CNRS, Université de Toulon, IRD, MIO UM 110, 13288, Marseille, France
| | - Chloé Dumas
- UPMC Univ Paris 06, CNRS, Laboratoire d'Océanographie Microbienne (LOMIC), Observatoire Océanologique, Sorbonne Universités, F-66650, Banyuls/mer, France
| | - Raphaël Lami
- UPMC Univ Paris 06, CNRS, Laboratoire d'Océanographie Microbienne (LOMIC), Observatoire Océanologique, Sorbonne Universités, F-66650, Banyuls/mer, France
| | - Mireille Pujo-Pay
- UPMC Univ Paris 06, CNRS, Laboratoire d'Océanographie Microbienne (LOMIC), Observatoire Océanologique, Sorbonne Universités, F-66650, Banyuls/mer, France
| | - Pascal Conan
- UPMC Univ Paris 06, CNRS, Laboratoire d'Océanographie Microbienne (LOMIC), Observatoire Océanologique, Sorbonne Universités, F-66650, Banyuls/mer, France
| | - Madeleine Goutx
- Aix Marseille Université, CNRS, Université de Toulon, IRD, MIO UM 110, 13288, Marseille, France
| | - Jean-François Ghiglione
- UPMC Univ Paris 06, CNRS, Laboratoire d'Océanographie Microbienne (LOMIC), Observatoire Océanologique, Sorbonne Universités, F-66650, Banyuls/mer, France.
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Sauret C, Böttjer D, Talarmin A, Guigue C, Conan P, Pujo-Pay M, Ghiglione JF. Top-Down Control of Diesel-Degrading Prokaryotic Communities. Microb Ecol 2015; 70:445-458. [PMID: 25805213 DOI: 10.1007/s00248-015-0596-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 03/08/2015] [Indexed: 06/04/2023]
Abstract
Biostimulation through the addition of inorganic nutrients has been the most widely practiced bioremediation strategy in oil-polluted marine waters. However, little attention has so far been paid to the microbial food web and the impact of top-down control that directly or indirectly influences the success of the bioremediation. We designed a mesocosm experiment using pre-filtered (<50 μm) surface seawater from the Bay of Banyuls-sur-Mer (North-Western Mediterranean Sea) and examined the top-down effect exerted by heterotrophic nanoflagellates (HNF) and virus-like particles (VLP) on prokaryotic abundance, activity and diversity in the presence or absence of diesel fuel. Prokaryotes, HNF and VLP abundances showed a predator-prey succession, with a co-development of HNF and VLP. In the polluted system, we observed a stronger impact of viral lysis on prokaryotic abundances than in the control. Analysis of the diversity revealed that a bloom of Vibrio sp. occurred in the polluted mesocosm. That bloom was rapidly followed by a less abundant and more even community of predation-resistant bacteria, including known hydrocarbon degraders such as Oleispira spp. and Methylophaga spp. and opportunistic bacteria such as Percisivirga spp., Roseobacter spp. and Phaeobacter spp. The shift in prokaryotic dominance in response to viral lysis provided clear evidence of the 'killing the winner' model. Nevertheless, despite clear effects on prokaryotic abundance, activity and diversity, the diesel degradation was not impacted by top-down control. The present study investigates for the first time the functioning of a complex microbial network (including VLP) using a nutrient-based biostimulation strategy and highlights some key processes useful for tailoring bioremediation.
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Affiliation(s)
- Caroline Sauret
- UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, Sorbonne Universités, 66650, Banyuls-sur-mer, France
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18
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Sauret C, Séverin T, Vétion G, Guigue C, Goutx M, Pujo-Pay M, Conan P, Fagervold SK, Ghiglione JF. 'Rare biosphere' bacteria as key phenanthrene degraders in coastal seawaters. Environ Pollut 2014; 194:246-253. [PMID: 25156140 DOI: 10.1016/j.envpol.2014.07.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 07/16/2014] [Accepted: 07/18/2014] [Indexed: 05/20/2023]
Abstract
By coupling DNA-SIP and pyrosequencing approaches, we identified Cycloclasticus sp. as a keystone degrader of polycyclic aromatic hydrocarbons (PAH) despite being a member of the 'rare biosphere' in NW Mediterranean seawaters. We discovered novel PAH-degrading bacteria (Oceanibaculum sp., Sneathiella sp.) and we identified other groups already known to possess this function (Alteromonas sp., Paracoccus sp.). Together with Cycloclasticus sp., these groups contributed to potential in situ phenanthrene degradation at a rate >0.5 mg l(-1) day(-1), sufficient to account for a considerable part of PAH degradation. Further, we characterized the PAH-tolerant bacterial communities, which were much more diverse in the polluted site by comparison to unpolluted marine references. PAH-tolerant bacteria were also members of the rare biosphere, such as Glaciecola sp. Collectively, these data show the complex interactions between PAH-degraders and PAH-tolerant bacteria and provide new insights for the understanding of the functional ecology of marine bacteria in polluted waters.
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Affiliation(s)
- Caroline Sauret
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Tatiana Séverin
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Gilles Vétion
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; CNRS, UMR 8222, Laboratoire d'Ecogéochimie des Environments Benthiques (LECOB), Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Catherine Guigue
- Aix-Marseille University, Mediterranean Institute of Oceanography (M I O), 13288 Marseille, Cedex 9, France; CNRS-INSU/IRD UM 110, Université du Sud Toulon-Var, 83957 La Garde Cedex, France
| | - Madeleine Goutx
- Aix-Marseille University, Mediterranean Institute of Oceanography (M I O), 13288 Marseille, Cedex 9, France; CNRS-INSU/IRD UM 110, Université du Sud Toulon-Var, 83957 La Garde Cedex, France
| | - Mireille Pujo-Pay
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Pascal Conan
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Sonja K Fagervold
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; CNRS, UMR 8222, Laboratoire d'Ecogéochimie des Environments Benthiques (LECOB), Observatoire Océanologique, F-66650 Banyuls/mer, France
| | - Jean-François Ghiglione
- CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France; Sorbonne Universités, UPMC Univ Paris 06, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique, F-66650 Banyuls/mer, France.
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Ghiglione JF, Conan P, Pujo-Pay M. Diversity of total and active free-living vs. particle-attached bacteria in the euphotic zone of the NW Mediterranean Sea. FEMS Microbiol Lett 2009; 299:9-21. [PMID: 19686348 DOI: 10.1111/j.15746968.2009.01694.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
The structure of the total and metabolically active communities of attached and free-living bacteria were analysed in the euphotic zone in the NW Mediterranean Sea with the use of DNA- and RNA-derived capillary electrophoresis single-strand conformation polymorphism fingerprinting. More than half (between 52% and 69%) of the DNA-derived operational taxonomic units (OTUs) were common in both attached and free-living fractions in the euphotic layer, suggesting an exchange or co-occurrence between them. However, analysis targeting 16S rRNA showed that only some of them were found in the dominant active bacterial pool. Especially at the deep chlorophyll maximum, less than half of the attached bacterial populations were found to be active, with regard to the high proportion of OTUs present at the DNA level, but not at the RNA level. These results suggest that even if colonization on and detachment of particles appear to be ubiquitous, most of the particulate organic carbon remineralization appeared to be mediated by a rather low number of dominant active OTUs specialized in exploiting such specific microenvironment.
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Ghiglione JF, Conan P, Pujo-Pay M. Diversity of total and active free-living vs. particle-attached bacteria in the euphotic zone of the NW Mediterranean Sea. FEMS Microbiol Lett 2009; 299:9-21. [DOI: 10.1111/j.1574-6968.2009.01694.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Joux F, Jeffrey WH, Abboudi M, Neveux J, Pujo-Pay M, Oriol L, Naudin JJ. Ultraviolet Radiation in the Rhône River Lenses of Low Salinity and in Marine Waters of the Northwestern Mediterranean Sea: Attenuation and Effects on Bacterial Activities and Net Community Production. Photochem Photobiol 2009; 85:783-93. [DOI: 10.1111/j.1751-1097.2008.00474.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mattsson T, Kortelainen P, Laubel A, Evans D, Pujo-Pay M, Räike A, Conan P. Export of dissolved organic matter in relation to land use along a European climatic gradient. Sci Total Environ 2009; 407:1967-76. [PMID: 19064278 DOI: 10.1016/j.scitotenv.2008.11.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2008] [Revised: 10/07/2008] [Accepted: 11/11/2008] [Indexed: 05/06/2023]
Abstract
The terrestrial export of dissolved organic matter (DOM) is associated with climate, vegetation and land use, and thus is under the influence of climatic variability and human interference with terrestrial ecosystems, their soils and hydrological cycles. We present a data-set including catchments from four areas covering the major climate and land use gradients within Europe: a forested boreal zone (Finland), a temperate agricultural area (Denmark), a wet and temperate mountain region in Wales, and a warm Mediterranean catchment draining into the Gulf of Lyon. In all study areas, DOC (dissolved organic carbon) was a major fraction of DOM, with much lower proportions of DON (dissolved organic nitrogen) and DOP (dissolved organic phosphorus). A south-north gradient with highest DOC concentrations and export in the northernmost catchments was recorded: DOC concentrations and loads were highest in Finland and lowest in France. These relationships indicate that DOC concentrations/export are controlled by several factors including wetland and forest cover, precipitation and hydrological processes. DON concentrations and loads were highest in the Danish catchments and lowest in the French catchments. In Wales and Finland, DON concentrations increased with the increasing proportion of agricultural land in the catchment, whereas in Denmark and France no such relationship was found. DOP concentrations and loads were low compared to DOC and DON. The highest DOP concentrations and loads were recorded in catchments with a high extent of agricultural land, large urban areas or a high population density, reflecting the influence of human impact on DOP loads.
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Affiliation(s)
- Tuija Mattsson
- Finnish Environment Institute, P.O. Box 140, FI-00251 Helsinki, Finland.
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Abboudi M, Jeffrey WH, Ghiglione JF, Pujo-Pay M, Oriol L, Sempéré R, Charrière B, Joux F. Effects of photochemical transformations of dissolved organic matter on bacterial metabolism and diversity in three contrasting coastal sites in the Northwestern Mediterranean Sea during summer. Microb Ecol 2008; 55:344-57. [PMID: 17674086 DOI: 10.1007/s00248-007-9280-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2007] [Accepted: 05/19/2007] [Indexed: 05/16/2023]
Abstract
The effects of phototransformation of dissolved organic matter (DOM) on bacterial growth, production, respiration, growth efficiency, and diversity were investigated during summer in two lagoons and one oligotrophic coastal water samples from the Northwestern Mediterranean Sea, differing widely in DOM and chromophoric DOM concentrations. Exposure of 0.2-microm filtered waters to full sun radiation for 1 d resulted in small changes in optical properties and concentrations of DOM, and no changes in nitrate, nitrite, and phosphate concentrations. After exposure to sunlight or dark (control) treatments, the water samples were inoculated with the original bacterial community. Phototransformation of DOM had contrasting effects on bacterial production and respiration, depending on the water's origin, resulting in an increase of bacterial growth efficiency for the oligotrophic coastal water sample (120%) and a decrease for the lagoon waters (20 to 40%) relative to that observed in dark treatments. We also observed that bacterial growth on DOM irradiated by full sun resulted in changes in community structure of total and metabolically active bacterial cells for the three locations studied when compared to the bacteria growing on un-irradiated DOM, and that changes were mainly caused by phototransformation of DOM by UV radiation for the eutrophic lagoon and the oligotrophic coastal water and by photosynthetically active radiation (PAR) for the mesoeutrophic lagoon. These initial results indicate that phototransformation of DOM significantly alters both bacterial metabolism and community structure in surface water for a variety of coastal ecosystems in the Mediterranean Sea. Further studies will be necessary to elucidate a more detailed appreciation of potential temporal and spatial variations of the effects measured.
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Affiliation(s)
- M Abboudi
- CNRS, UMR 7621, Université Pierre et Marie Curie-Paris-6, 66650 Banyuls-sur-mer, France
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Ghiglione JF, Mevel G, Pujo-Pay M, Mousseau L, Lebaron P, Goutx M. Diel and seasonal variations in abundance, activity, and community structure of particle-attached and free-living bacteria in NW Mediterranean Sea. Microb Ecol 2007; 54:217-31. [PMID: 17345139 DOI: 10.1007/s00248-006-9189-7] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2006] [Revised: 10/16/2006] [Accepted: 12/01/2006] [Indexed: 05/14/2023]
Abstract
Diel and seasonal variations in abundance, activity, and structure of particle-attached vs free-living bacterial communities were investigated in offshore NW Mediterranean Sea (0-1000 m). Attached bacteria were always less abundant and less diverse but generally more active than free-living bacteria. The most important finding of this study was that the activity of attached bacteria showed pronounced diel variations in the upper mixed water column with higher activities at night. Under mesotrophic conditions, the contribution of attached bacteria to total bacterial activity increased from less than 10% at day time to 83% at night time. At high chlorophyll a concentration, the highest cell-specific activities and contribution to total bacterial activity were due to free-living bacteria at day and to attached bacteria at night. Under summer oligotrophic conditions, free-living bacteria dominated and contributed to the most important part of the bacterial activity at both day and night, whereas attached bacteria were much less abundant but presented the highest cell-specific activities. These diel and seasonal variations in activities were concomitant to changes in bacterial community structure, mainly in the upper layer. The number of attached ribotypes was fairly constant suggesting that particles are colonized by a relatively limited number of ubiquitous ribotypes. Most of these ribotypes were also free-living ribotypes suggesting that attached bacteria probably originate from colonization of newly formed particles by free-living bacteria in the upper layer. These results reinforce the biogeochemical role of attached bacteria in the cycling of particulate organic carbon in the NW Mediterranean Sea and the importance of diel variability in these processes.
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Affiliation(s)
- J F Ghiglione
- Observatoire Océanographique de Banyuls, Laboratoire d'Océanographie Biologique, Université Pierre et Marie Curie-Paris6, Institut National des Sciences de l'Univers, CNRS UMR 7621, Banyuls-sur-mer Cedex, France.
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Raimbault P, Slawyk G, Boudjellal B, Coatanoan C, Conan P, Coste B, Garcia N, Moutin T, Pujo-Pay M. Carbon and nitrogen uptake and export in the equatorial Pacific at 150°W: Evidence of an efficient regenerated production cycle. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1998jc900004] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Conan P, Pujo-Pay M, Raimbault P, Leveau M. Variabilité hydrologique et biologique du golfe du Lion. I. Transports en azote et productivité potentielle. ACTA ACUST UNITED AC 1998. [DOI: 10.1016/s0399-1784(99)80004-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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