Evidence of species-specific detoxification processes for trace elements in shorebirds
International audience This study investigated sub-lethal effects and detoxification processes activated in free-ranging Red Knots (Calidris canutus) from the Pertuis Charentais on the Atlantic coast of France, and compared the results with previous data obtained on another shorebird species, the Bl...
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Online Access: | https://hal.science/hal-00743782 https://hal.science/hal-00743782/document https://hal.science/hal-00743782/file/Lucia_et_al._2012_Ecotoxicology.pdf https://doi.org/10.1007/s10646-012-0991-3 |
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ftunivrochelle:oai:HAL:hal-00743782v1 2024-05-12T08:02:08+00:00 Evidence of species-specific detoxification processes for trace elements in shorebirds Lucia, Magali Bocher, Pierrick Cosson, Richard, P. Churlaud, Carine Bustamante, Paco LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Mer, molécules et santé EA 2160 (MMS) Le Mans Université (UM)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques Université de Nantes (UN)-Université de Nantes (UN) 2012-09-22 https://hal.science/hal-00743782 https://hal.science/hal-00743782/document https://hal.science/hal-00743782/file/Lucia_et_al._2012_Ecotoxicology.pdf https://doi.org/10.1007/s10646-012-0991-3 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s10646-012-0991-3 hal-00743782 https://hal.science/hal-00743782 https://hal.science/hal-00743782/document https://hal.science/hal-00743782/file/Lucia_et_al._2012_Ecotoxicology.pdf doi:10.1007/s10646-012-0991-3 info:eu-repo/semantics/OpenAccess ISSN: 0963-9292 EISSN: 1573-3017 Ecotoxicology https://hal.science/hal-00743782 Ecotoxicology, 2012, 21, pp.2349-2362. ⟨10.1007/s10646-012-0991-3⟩ Metal Bioaccumulation Biomarker Waterbird Gene expression [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology info:eu-repo/semantics/article Journal articles 2012 ftunivrochelle https://doi.org/10.1007/s10646-012-0991-3 2024-04-17T15:19:17Z International audience This study investigated sub-lethal effects and detoxification processes activated in free-ranging Red Knots (Calidris canutus) from the Pertuis Charentais on the Atlantic coast of France, and compared the results with previous data obtained on another shorebird species, the Black-tailed Godwit (Limosa limosa). The concentrations of 13 trace elements (Ag, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, Zn) were assessed in the liver, kidneys, muscle and feathers. Stable isotope analyses of carbon and nitrogen were carried out to determine whether differences in diet explained variations in elemental uptake. The mRNA expression of relevant genes (cytochrome c oxidase 1, acetyl-CoA carboxylase, superoxide dismutase Cu/Zn and Mn, catalase, metallothionein, malic enzyme), antioxidant enzyme activities (catalase, glutathione peroxidase (GPx), superoxide dismutase), and metallothionein (MT) levels were investigated to shed light on trace element detoxification and toxic effects. Although Red Knots were characterized by elevated As and Se concentrations which were potentially toxic, most elements were usually below toxicity threshold levels. The results strongly suggested a dietary specialization of Red Knots, with individuals feeding on higher trophic status prey experiencing higher As, Hg and Se burdens. Red knots and Godwits also showed discrepancies in elemental accumulation and detoxification processes. Higher As and Se concentrations in Red Knots enhanced catalase gene expression and enzyme activity, while Godwits had higher Ag, Cu, Fe and Zn levels and showed higher MT production and GPx activity. The results strongly suggest that detoxification pathways are essentially trace element- and species-specific. Article in Journal/Newspaper Calidris canutus black-tailed godwit Limosa limosa HAL - Université de La Rochelle Ecotoxicology 21 8 2349 2362 |
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Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
Metal Bioaccumulation Biomarker Waterbird Gene expression [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
spellingShingle |
Metal Bioaccumulation Biomarker Waterbird Gene expression [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology Lucia, Magali Bocher, Pierrick Cosson, Richard, P. Churlaud, Carine Bustamante, Paco Evidence of species-specific detoxification processes for trace elements in shorebirds |
topic_facet |
Metal Bioaccumulation Biomarker Waterbird Gene expression [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
description |
International audience This study investigated sub-lethal effects and detoxification processes activated in free-ranging Red Knots (Calidris canutus) from the Pertuis Charentais on the Atlantic coast of France, and compared the results with previous data obtained on another shorebird species, the Black-tailed Godwit (Limosa limosa). The concentrations of 13 trace elements (Ag, As, Cd, Co, Cr, Cu, Fe, Hg, Mn, Ni, Pb, Se, Zn) were assessed in the liver, kidneys, muscle and feathers. Stable isotope analyses of carbon and nitrogen were carried out to determine whether differences in diet explained variations in elemental uptake. The mRNA expression of relevant genes (cytochrome c oxidase 1, acetyl-CoA carboxylase, superoxide dismutase Cu/Zn and Mn, catalase, metallothionein, malic enzyme), antioxidant enzyme activities (catalase, glutathione peroxidase (GPx), superoxide dismutase), and metallothionein (MT) levels were investigated to shed light on trace element detoxification and toxic effects. Although Red Knots were characterized by elevated As and Se concentrations which were potentially toxic, most elements were usually below toxicity threshold levels. The results strongly suggested a dietary specialization of Red Knots, with individuals feeding on higher trophic status prey experiencing higher As, Hg and Se burdens. Red knots and Godwits also showed discrepancies in elemental accumulation and detoxification processes. Higher As and Se concentrations in Red Knots enhanced catalase gene expression and enzyme activity, while Godwits had higher Ag, Cu, Fe and Zn levels and showed higher MT production and GPx activity. The results strongly suggest that detoxification pathways are essentially trace element- and species-specific. |
author2 |
LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Mer, molécules et santé EA 2160 (MMS) Le Mans Université (UM)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques Université de Nantes (UN)-Université de Nantes (UN) |
format |
Article in Journal/Newspaper |
author |
Lucia, Magali Bocher, Pierrick Cosson, Richard, P. Churlaud, Carine Bustamante, Paco |
author_facet |
Lucia, Magali Bocher, Pierrick Cosson, Richard, P. Churlaud, Carine Bustamante, Paco |
author_sort |
Lucia, Magali |
title |
Evidence of species-specific detoxification processes for trace elements in shorebirds |
title_short |
Evidence of species-specific detoxification processes for trace elements in shorebirds |
title_full |
Evidence of species-specific detoxification processes for trace elements in shorebirds |
title_fullStr |
Evidence of species-specific detoxification processes for trace elements in shorebirds |
title_full_unstemmed |
Evidence of species-specific detoxification processes for trace elements in shorebirds |
title_sort |
evidence of species-specific detoxification processes for trace elements in shorebirds |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-00743782 https://hal.science/hal-00743782/document https://hal.science/hal-00743782/file/Lucia_et_al._2012_Ecotoxicology.pdf https://doi.org/10.1007/s10646-012-0991-3 |
genre |
Calidris canutus black-tailed godwit Limosa limosa |
genre_facet |
Calidris canutus black-tailed godwit Limosa limosa |
op_source |
ISSN: 0963-9292 EISSN: 1573-3017 Ecotoxicology https://hal.science/hal-00743782 Ecotoxicology, 2012, 21, pp.2349-2362. ⟨10.1007/s10646-012-0991-3⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10646-012-0991-3 hal-00743782 https://hal.science/hal-00743782 https://hal.science/hal-00743782/document https://hal.science/hal-00743782/file/Lucia_et_al._2012_Ecotoxicology.pdf doi:10.1007/s10646-012-0991-3 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1007/s10646-012-0991-3 |
container_title |
Ecotoxicology |
container_volume |
21 |
container_issue |
8 |
container_start_page |
2349 |
op_container_end_page |
2362 |
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1798844210673090560 |