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Effect of cadmium, copper and mercury on antioxidant enzyme activities and lipid peroxidation in the gills of the hydrothermal vent mussel Bathymodiolus azoricus

2004Journal article Restricted access
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dc.contributor.authorCompany, Rui
dc.contributor.authorSerafim, Angela
dc.contributor.authorBebianno, Maria João
dc.contributor.authorCosson, R.
dc.contributor.authorShillito, B.
dc.contributor.authorFiala-Médioni, A.
dc.date.accessioned2020-05-08T15:43:59Z
dc.date.available2020-05-08T15:43:59Z
dc.date.issued2004
dc.description.abstractMetals are known to influence lipid peroxidation and oxidative status of marine organisms. Hydrothermal vent mussels Bathymodiolus azoricus live in deep-sea environments with anomalous conditions, including high metal concentrations. Although B. azoricus are aerobic organisms they possess abundant methano and thioautotrophic symbiotic bacteria in the gills. The enzymatic defences (superoxide dismutase (SOD), catalase (CAT), total glutathione peroxidase (Total GPx) and selenium-dependent glutathione peroxidase (Se-GPx)) and lipid peroxidation were determined in the gills of B. azoricus exposed to Cd (0.9 microM), Cu (0.4 microM) and Hg (0.1 microM) with different times of exposure. The experiments were performed in pressurized containers at 9+/-1 degrees C and 85 bars. Results show that vent mussels possess antioxidant enzymatic protection in the gills. Cd and Cu had an inhibitory effect in the enzymatic defence system, contrarily to Hg. These enzymatic systems are not completely understood in the B. azoricus, since reactive oxygen species might be produced through other processes than natural redox cycling, due to hydrogen sulphide and oxygen content present. Also the symbiotic bacteria may play an important contribution in the antioxidant protection of the gills.pt_PT
dc.description.sponsorshipSFRH/904/2000pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.marenvres.2004.03.083pt_PT
dc.identifier.issn0141-1136
dc.identifier.urihttp://hdl.handle.net/10400.1/13863
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectAnalysis of variancept_PT
dc.subjectAnimalspt_PT
dc.subjectAtlantic Oceanpt_PT
dc.subjectBacteriapt_PT
dc.subjectBivalviapt_PT
dc.subjectCadmiumpt_PT
dc.subjectCatalasept_PT
dc.subjectCopperpt_PT
dc.subjectEnzyme activationpt_PT
dc.subjectGillspt_PT
dc.subjectGlutathione peroxidasept_PT
dc.subjectLipid peroxidationpt_PT
dc.subjectMercurypt_PT
dc.subjectMetalspt_PT
dc.subjectSuperoxide dismutasept_PT
dc.subjectSymbiosispt_PT
dc.subjectHeavypt_PT
dc.titleEffect of cadmium, copper and mercury on antioxidant enzyme activities and lipid peroxidation in the gills of the hydrothermal vent mussel Bathymodiolus azoricuspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage381pt_PT
oaire.citation.issue2-5pt_PT
oaire.citation.startPage377pt_PT
oaire.citation.titleMarine Environmental Researchpt_PT
oaire.citation.volume58pt_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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