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Chronic toxicity of polystyrene nanoparticles in the marine mussel Mytilus galloprovincialis

2021Journal article Restricted access
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dc.contributor.authorGonçalves, Joanna M.
dc.contributor.authorSousa, Vânia Serrão
dc.contributor.authorTeixeira, Margarida Ribau
dc.contributor.authorBebianno, Maria
dc.date.accessioned2021-10-06T09:18:20Z
dc.date.available2023-09-29T00:30:15Z
dc.date.issued2021
dc.description.abstractNanoplastics (NP) (1–100 nm) are a growing global concern, and their adverse effects in marine organisms are still scarce. This study evaluated the effects of polystyrene nanoplastics (10 μg/L; 50 nm nPS) in the marine mussel Mytilus galloprovincialis after a 21 – day exposure. The hydrodynamic diameter and zeta potential of nPS were analysed, over time, in seawater and ultrapure water. A multibiomarker approach (genotoxicity (the comet assay) was assessed in mussel haemocytes, and the antioxidant enzymes (superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx)), biotransformation enzyme (glutathione – S – transferase (GST)), and oxidative damage (LPO)) was assessed in gills and digestive glands to evaluate the toxicity of nPS towards mussels. In seawater, aggregation of nPS is favoured and consequently the hydrodynamic diameter increases. Genotoxicity was highly noticeable in mussels exposed to nPS, presenting a higher % tail DNA when compared to controls. Antioxidant enzymes are overwhelmed after nPS exposure, leading to oxidative damage in both tissues. Results showed that mussel tissues are incapable of dealing with the effects that this emerging stressor pursues towards the organism. The Integrated Biomarker Response index, used to summarise the biomarkers analysed into one index, shows that nPS toxicity towards mussels are both tissue and time dependent, being that gills are the tissue most compromised.pt_PT
dc.description.sponsorshipJPIOCEANS/0005/2020
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.chemosphere.2021.132356pt_PT
dc.identifier.issn0045-6535
dc.identifier.urihttp://hdl.handle.net/10400.1/17186
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationEfeitos de mixturas de contaminantes emergentes nos ecossistemas aquáticos: uma abordagem a vários níveis de organização biológica
dc.relationCentre for Marine and Environmental Research (CIMA)
dc.subjectPolystyrene nanoplasticspt_PT
dc.subjectMytilus galloprovincialispt_PT
dc.subjectOxidative stresspt_PT
dc.subjectOxidative damagept_PT
dc.subjectGenotoxicitypt_PT
dc.titleChronic toxicity of polystyrene nanoparticles in the marine mussel Mytilus galloprovincialispt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleEfeitos de mixturas de contaminantes emergentes nos ecossistemas aquáticos: uma abordagem a vários níveis de organização biológica
oaire.awardTitleCentre for Marine and Environmental Research (CIMA)
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/9471 - RIDTI/PTDC%2FBIA-BMA%2F30922%2F2017/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00350%2F2020/PT
oaire.citation.startPage132356pt_PT
oaire.citation.titleChemospherept_PT
oaire.fundingStream9471 - RIDTI
oaire.fundingStream6817 - DCRRNI ID
person.familyNameRibeiro Gonçalves
person.familyNameBebianno
person.givenNameJoanna Melissa
person.givenNameMaria
person.identifier.ciencia-id2D1D-F33A-FB48
person.identifier.ciencia-id2B11-46AC-B94B
person.identifier.orcid0000-0002-3242-1032
person.identifier.orcid0000-0003-1492-8566
person.identifier.scopus-author-id7004152715
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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