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Microplastics do not affect standard ecotoxicological endpoints in marine unicellular organisms

2019Journal article Restricted access
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dc.contributor.authorGambardella, Chiara
dc.contributor.authorPiazza, Veronica
dc.contributor.authorAlbentosa, Marina
dc.contributor.authorBebianno, Maria João
dc.contributor.authorCardoso, Cátia
dc.contributor.authorFaimali, Marco
dc.contributor.authorGaraventa, Francesca
dc.contributor.authorGarrido, Soledad
dc.contributor.authorGonzález, Sergio
dc.contributor.authorPérez, Sara
dc.contributor.authorSendra, Marta
dc.contributor.authorBeiras, Ricardo
dc.date.accessioned2020-04-06T09:17:05Z
dc.date.available2020-04-06T09:17:05Z
dc.date.issued2019
dc.description.abstractIn this study, the acute toxicity of microplastics (MPs) on unicellular organisms as marine decomposers and microalgae was assessed, by evaluating standards endpoints included in International Standard Organization (ISO) protocols. The bacteria Vibrio fischeri and the diatom Phaeodactylum tricornutum were exposed to different sizes (1-500 μm) of polyethylene MPs in order to evaluate bioluminescence inhibition and microalgal growth. No acute toxicity was found on bacteria or microalgae in an order of magnitude above environmentally relevant concentrations, suggesting that tested MPs did not affect the investigated biological processes. In conclusion, standard ecotoxicological endpoints are not sufficiently sensitive to assess the potential effects of MPs on decomposers and primary producers, conversely to nanoplastics. These findings highlight that the current approach for MP risk assessment in unicellular species should be revised, by providing alternative endpoints to be included in standardized protocols, able to monitor the fate and biological effects of MPs.pt_PT
dc.description.sponsorshipPCIN-2015-187-C03-01pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.marpolbul.2019.04.055pt_PT
dc.identifier.issn0025-326X
dc.identifier.urihttp://hdl.handle.net/10400.1/13691
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0025326X19303273?via%3Dihubpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAliivibrio fischeript_PT
dc.subjectDiatomspt_PT
dc.subjectEcotoxicologypt_PT
dc.subjectMicroalgaept_PT
dc.subjectMicroplasticspt_PT
dc.subjectPolyethylenept_PT
dc.subjectToxicity testspt_PT
dc.subjectWater pollutantspt_PT
dc.titleMicroplastics do not affect standard ecotoxicological endpoints in marine unicellular organismspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FMAR%2F00350%2F2013/PT
oaire.citation.endPage143pt_PT
oaire.citation.startPage140pt_PT
oaire.citation.titleMarine Pollution Bulletinpt_PT
oaire.citation.volume143pt_PT
oaire.fundingStream5876
person.familyNameBebianno
person.familyNameCardoso
person.familyNameSendra
person.givenNameMaria
person.givenNameCátia
person.givenNameMarta
person.identifier.ciencia-id2B11-46AC-B94B
person.identifier.orcid0000-0003-1492-8566
person.identifier.orcid0000-0003-3157-9898
person.identifier.orcid0000-0001-9317-0217
person.identifier.ridI-9235-2014
person.identifier.scopus-author-id7004152715
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication2cf7d59f-e432-46f3-a411-7085113ea2a7
relation.isAuthorOfPublication8fe7327b-3260-4f94-aa23-cc518305a9f4
relation.isAuthorOfPublication.latestForDiscovery2cf7d59f-e432-46f3-a411-7085113ea2a7
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