Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/37731
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dc.contributor.authorReis, P.pt_PT
dc.contributor.authorLourenço, J.pt_PT
dc.contributor.authorCarvalho, F. P.pt_PT
dc.contributor.authorOliveira, J.pt_PT
dc.contributor.authorMalta, M.pt_PT
dc.contributor.authorMendo, S.pt_PT
dc.contributor.authorPereira, R.pt_PT
dc.date.accessioned2023-05-15T14:30:56Z-
dc.date.available2023-05-15T14:30:56Z-
dc.date.issued2018-05-
dc.identifier.issn0166-445Xpt_PT
dc.identifier.urihttp://hdl.handle.net/10773/37731-
dc.description.abstractThe induction of RIBE (Radiation Induced Bystander Effect) is a non-target effect of low radiation doses that has already been verified at an inter-organismic level in fish and small mammals. Although the theoretical impact in the field of environmental risk assessment (ERA) is possible, there is a gap of knowledge regarding this phenomenon in invertebrate groups and following environmentally relevant exposures. To understand if RIBE should be considered for ERA of radionuclide-rich wastewaters, we exposed Daphnia magna (<24 h and 5d old) to a 2% diluted uranium mine effluent for 48 h, and to a matching dose of waterborne uranium (55.3 μg L-1). Then the exposed organisms were placed (24 and 48 h) in a clean medium together with non-exposed neonates. The DNA damage observed for the non-exposed organisms was statistically significant after the 24 h cohabitation for both uranium (neonates p = 0.002; 5 d-old daphnids p = <0.001) and uranium mine effluent exposure (only for neonates p = 0.042). After 48 h cohabitation significant results were obtained only for uranium exposure (neonates p = 0.017; 5 d-old daphnids p = 0.013). Although there may be some variability associated to age and exposure duration, the significant DNA damage detected in non-exposed organisms clearly reveals the occurrence of RIBE in D. magna. The data obtained and here presented are a valuable contribution for the discussion about the relevance of RIBE for environmental risk assessment.pt_PT
dc.language.isoengpt_PT
dc.publisherElsevierpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/OE/SFRH%2FBPD%2F92554%2F2013/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F04423%2F2013/PTpt_PT
dc.relationinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAMB%2F50017%2F2013/PTpt_PT
dc.rightsopenAccesspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectBystander effectpt_PT
dc.subjectDaphnia magnapt_PT
dc.subjectUranium mine effluentpt_PT
dc.subjectEnvironmental risk assessmentpt_PT
dc.subjectRadiobiologypt_PT
dc.titleRIBE at an inter-organismic level: a study on genotoxic effects in Daphnia magna exposed to waterborne uranium and a uranium mine effluentpt_PT
dc.typearticlept_PT
dc.description.versionpublishedpt_PT
dc.peerreviewedyespt_PT
degois.publication.firstPage206pt_PT
degois.publication.lastPage214pt_PT
degois.publication.titleAquatic toxicology (Amsterdam, Netherlands)pt_PT
degois.publication.volume198pt_PT
dc.identifier.doi10.1016/j.aquatox.2018.03.007pt_PT
dc.identifier.essn1879-1514pt_PT
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