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Effect of temperature and size on metallothionein synthesis in the gill of Mytilus galloprovincialis exposed to cadmium

2002Journal article Restricted access
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dc.contributor.authorSerafim, Angela
dc.contributor.authorCompany, Rui
dc.contributor.authorBebianno, Maria João
dc.contributor.authorLangston, W.J
dc.date.accessioned2020-05-28T15:43:18Z
dc.date.available2020-05-28T15:43:18Z
dc.date.issued2002
dc.description.abstractAlthough the degree of metal contamination is expected to be a primary determinant of metallothionein (MT) induction in marine mussels, at least at polluted sites, variability caused by temperature, and biotic factors such as size, may need to be considered when interpreting field data. To test the effects of these variables, mussels, Mytilus galloprovincialis, of different sizes (small: 3.5+/-0.5 cm and large: 5.2+/-0.7 cm) were exposed to Cd (100 mug 1(-1)) at different water temperatures (5, 18 and 25 degreesC) for 34 days. Resultant Cd and MT concentrations in gills were shown to be size dependent and increased significantly with temperature. At the highest temperature tested (25 degreesC) there appears to be a disproportionate effect on Cd accumulation, which raises MT synthesis to exceptionally high levels. The effect of size on MT concentrations was also temperature-dependent: at 18 and 25 degreesC, large mussels exhibited higher MT levels than smaller individuals, whilst at 5 degreesC there were no significant differences between contaminated and control mussels, in either size-group, as a result of the reduced level of MT production at this temperature. When considering the use of MT levels in mussels as a biochemical indicator of metal contamination, the potential influence of factors such as size and temperature on MT-metal relationships needs to be considered. Samples should be of uniform size as far as possible, and collection should be limited to a fixed season (avoiding climatic extremes) to ensure that the effects of these factors on baseline levels of MT is minimised.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/S0141-1136(02)00121-6pt_PT
dc.identifier.issn0141-1136
dc.identifier.urihttp://hdl.handle.net/10400.1/13964
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectCadmiumpt_PT
dc.subjectGillspt_PT
dc.subjectMetallothioneinpt_PT
dc.subjectMolluscpt_PT
dc.subjectMytilus galloprovincialispt_PT
dc.subjectTemperaturept_PT
dc.subjectSizept_PT
dc.titleEffect of temperature and size on metallothionein synthesis in the gill of Mytilus galloprovincialis exposed to cadmiumpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage365pt_PT
oaire.citation.issue3-5pt_PT
oaire.citation.startPage361pt_PT
oaire.citation.titleMarine Environmental Researchpt_PT
oaire.citation.volume54pt_PT
person.familyNamePereira Serafim
person.familyNameBebianno
person.givenNameMaria Angela
person.givenNameMaria
person.identifier.ciencia-id9C18-090A-5E3D
person.identifier.ciencia-id2B11-46AC-B94B
person.identifier.orcid0000-0002-1165-0645
person.identifier.orcid0000-0003-1492-8566
person.identifier.scopus-author-id7004152715
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication0e42fc03-7052-438d-952b-b3caa5bdc36a
relation.isAuthorOfPublication2e00a26d-1dd3-4c22-a6bf-ac7943ae0d32
relation.isAuthorOfPublication.latestForDiscovery0e42fc03-7052-438d-952b-b3caa5bdc36a

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