RIBE at an inter-organismic level: a study on genotoxic effects in Daphnia magna exposed to waterborne uranium and a uranium mine effluent
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/37731 |
Resumo: | The 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. |
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RIBE at an inter-organismic level: a study on genotoxic effects in Daphnia magna exposed to waterborne uranium and a uranium mine effluentBystander effectDaphnia magnaUranium mine effluentEnvironmental risk assessmentRadiobiologyThe 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.Elsevier2023-05-15T14:30:56Z2018-05-01T00:00:00Z2018-05info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/37731eng0166-445X10.1016/j.aquatox.2018.03.007Reis, P.Lourenço, J.Carvalho, F. P.Oliveira, J.Malta, M.Mendo, S.Pereira, R.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T12:13:43Zoai:ria.ua.pt:10773/37731Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:08:20.021183Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
RIBE at an inter-organismic level: a study on genotoxic effects in Daphnia magna exposed to waterborne uranium and a uranium mine effluent |
title |
RIBE at an inter-organismic level: a study on genotoxic effects in Daphnia magna exposed to waterborne uranium and a uranium mine effluent |
spellingShingle |
RIBE at an inter-organismic level: a study on genotoxic effects in Daphnia magna exposed to waterborne uranium and a uranium mine effluent Reis, P. Bystander effect Daphnia magna Uranium mine effluent Environmental risk assessment Radiobiology |
title_short |
RIBE at an inter-organismic level: a study on genotoxic effects in Daphnia magna exposed to waterborne uranium and a uranium mine effluent |
title_full |
RIBE at an inter-organismic level: a study on genotoxic effects in Daphnia magna exposed to waterborne uranium and a uranium mine effluent |
title_fullStr |
RIBE at an inter-organismic level: a study on genotoxic effects in Daphnia magna exposed to waterborne uranium and a uranium mine effluent |
title_full_unstemmed |
RIBE at an inter-organismic level: a study on genotoxic effects in Daphnia magna exposed to waterborne uranium and a uranium mine effluent |
title_sort |
RIBE at an inter-organismic level: a study on genotoxic effects in Daphnia magna exposed to waterborne uranium and a uranium mine effluent |
author |
Reis, P. |
author_facet |
Reis, P. Lourenço, J. Carvalho, F. P. Oliveira, J. Malta, M. Mendo, S. Pereira, R. |
author_role |
author |
author2 |
Lourenço, J. Carvalho, F. P. Oliveira, J. Malta, M. Mendo, S. Pereira, R. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Reis, P. Lourenço, J. Carvalho, F. P. Oliveira, J. Malta, M. Mendo, S. Pereira, R. |
dc.subject.por.fl_str_mv |
Bystander effect Daphnia magna Uranium mine effluent Environmental risk assessment Radiobiology |
topic |
Bystander effect Daphnia magna Uranium mine effluent Environmental risk assessment Radiobiology |
description |
The 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. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-05-01T00:00:00Z 2018-05 2023-05-15T14:30:56Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/37731 |
url |
http://hdl.handle.net/10773/37731 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0166-445X 10.1016/j.aquatox.2018.03.007 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137736410529792 |