| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Response of the pearl oyster Pinctada margaritifera to cadmium and chromium: Identification of molecular biomarkers
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| Autores: |
Gueguen, Yannick
Saulnier, Denis
Santini, Adrien
Magre, Kevin
Garen, Pierre
Bernagout, Solene
Nohl, Marine
Bouisset, Patrick
Helme, Herehia
Planes, Serge
Le Moullac, Gilles
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| Data: |
2017-05
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| Ano: |
2017
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| Palavras-chave: |
Pinctada margaritifera
French Polynesia
Cadmium
Chromium
Gene expression
Metallothionein
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| Resumo: |
This study was designed to identify in the pearl oyster Pinctada margaritifera, used as a bio-accumulator, molecular biomarkers for the presence of heavy metals in the lagoon environment. Pearl oysters were exposed to 2 concentrations (1 and 10 μg L− 1) of cadmium (Cd) and chromium (Cr) compared to a control. Twelve target genes encoding proteins potentially involved in the response to heavy metal contamination with antioxidant, detoxification or apoptosis activities were selected. P. margaritifera accumulated Cd but not Cr, and mortality was related to the amount of Cd accumulated in tissues. In response to Cd-Cr contamination, metallothionein (MT) was significantly up-regulated by Cd-Cr at both concentrations, while 7 others (SOD, CAT, GPX, GSTO, GSTM, CASP, MDR) were down-regulated. Based on the development of these molecular tools, we propose that the pearl oyster, P. margaritifera, could be used as a sentinel species for heavy metal contamination in the lagoons of tropical ecosystems.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/00376/48707/49146.pdf
DOI:10.1016/j.marpolbul.2017.03.012
http://archimer.ifremer.fr/doc/00376/48707/
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| Editor: |
Pergamon-elsevier Science Ltd
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| Formato: |
application/pdf
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| Fonte: |
Marine Pollution Bulletin (0025-326X) (Pergamon-elsevier Science Ltd), 2017-05 , Vol. 118 , N. 1-2 , P. 420-426
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| Direitos: |
2017 Elsevier Ltd. All rights reserved.
info:eu-repo/semantics/openAccess
restricted use
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