Impairment of lipid storage by cadmium in the European eel (Anguilla anguilla)
International audience Because European silver eels (Anguilla anguilla) fast during their reproductive migration to the Sargasso Sea, the successful completion of their unusual life cycle depends on quantity of lipids stored beforehand. These lipids are mainly accumulated during the growth phase sta...
Published in: | Aquatic Toxicology |
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Online Access: | https://hal.inrae.fr/hal-02588903 https://doi.org/10.1016/j.aquatox.2006.12.014 |
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ftccsdartic:oai:HAL:hal-02588903v1 2023-05-15T13:27:11+02:00 Impairment of lipid storage by cadmium in the European eel (Anguilla anguilla) Pierron, F. Baudrimont, M. Bossy, A. Bourdineaud, J.P. Brèthes, D. Elie, Pierre Massabuau, J.C. UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) IBGC BORDEAUX Partenaires IRSTEA Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) Ecosystèmes estuariens et poissons migrateurs amphihalins (UR EPBX) Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF) 2007 https://hal.inrae.fr/hal-02588903 https://doi.org/10.1016/j.aquatox.2006.12.014 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquatox.2006.12.014 hal-02588903 https://hal.inrae.fr/hal-02588903 doi:10.1016/j.aquatox.2006.12.014 IRSTEA: PUB00021285 ISSN: 0166-445X Aquatic Toxicology https://hal.inrae.fr/hal-02588903 Aquatic Toxicology, Elsevier, 2007, 81 (3), pp.304-311. ⟨10.1016/j.aquatox.2006.12.014⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2007 ftccsdartic https://doi.org/10.1016/j.aquatox.2006.12.014 2021-11-21T00:51:23Z International audience Because European silver eels (Anguilla anguilla) fast during their reproductive migration to the Sargasso Sea, the successful completion of their unusual life cycle depends on quantity of lipids stored beforehand. These lipids are mainly accumulated during the growth phase stage of the animals, called yellow eel, as triglycerides in muscle. They are then catabolized to provide sufficient energy to enable migration, gonad maturation and spawning. In the laboratory, we investigated the possible impact of cadmium on the lipid storage efficiency of yellow eels in order to evaluate the possible contribution of this pollutant to the reported decline of European eel populations. Eels were exposed to dissolved cadmium at nominal concentrations of 0 and 5 µg.L-1 for one month. Cd toxicity was then examined by studying the activity and expression level of several enzymes involved in liver lipolysis and lipogenesis and by determining lipid content in muscle. Contaminated eels showed a lower body weight growth with a lower efficiency of lipid storage compared to controls. Using two complementary approaches, genetic and enzymatic, it was possible to conclude that this impairment is mainly explained by an increased utilisation of triglycerides since cadmium contamination did not trigger a reduced fatty acid synthesis. These observations suggest an increased fat consumption in presence of cadmium, which could compromise successful reproduction. Article in Journal/Newspaper Anguilla anguilla Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Aquatic Toxicology 81 3 304 311 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
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ftccsdartic |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Pierron, F. Baudrimont, M. Bossy, A. Bourdineaud, J.P. Brèthes, D. Elie, Pierre Massabuau, J.C. Impairment of lipid storage by cadmium in the European eel (Anguilla anguilla) |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Because European silver eels (Anguilla anguilla) fast during their reproductive migration to the Sargasso Sea, the successful completion of their unusual life cycle depends on quantity of lipids stored beforehand. These lipids are mainly accumulated during the growth phase stage of the animals, called yellow eel, as triglycerides in muscle. They are then catabolized to provide sufficient energy to enable migration, gonad maturation and spawning. In the laboratory, we investigated the possible impact of cadmium on the lipid storage efficiency of yellow eels in order to evaluate the possible contribution of this pollutant to the reported decline of European eel populations. Eels were exposed to dissolved cadmium at nominal concentrations of 0 and 5 µg.L-1 for one month. Cd toxicity was then examined by studying the activity and expression level of several enzymes involved in liver lipolysis and lipogenesis and by determining lipid content in muscle. Contaminated eels showed a lower body weight growth with a lower efficiency of lipid storage compared to controls. Using two complementary approaches, genetic and enzymatic, it was possible to conclude that this impairment is mainly explained by an increased utilisation of triglycerides since cadmium contamination did not trigger a reduced fatty acid synthesis. These observations suggest an increased fat consumption in presence of cadmium, which could compromise successful reproduction. |
author2 |
UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) IBGC BORDEAUX Partenaires IRSTEA Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) Ecosystèmes estuariens et poissons migrateurs amphihalins (UR EPBX) Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF) |
format |
Article in Journal/Newspaper |
author |
Pierron, F. Baudrimont, M. Bossy, A. Bourdineaud, J.P. Brèthes, D. Elie, Pierre Massabuau, J.C. |
author_facet |
Pierron, F. Baudrimont, M. Bossy, A. Bourdineaud, J.P. Brèthes, D. Elie, Pierre Massabuau, J.C. |
author_sort |
Pierron, F. |
title |
Impairment of lipid storage by cadmium in the European eel (Anguilla anguilla) |
title_short |
Impairment of lipid storage by cadmium in the European eel (Anguilla anguilla) |
title_full |
Impairment of lipid storage by cadmium in the European eel (Anguilla anguilla) |
title_fullStr |
Impairment of lipid storage by cadmium in the European eel (Anguilla anguilla) |
title_full_unstemmed |
Impairment of lipid storage by cadmium in the European eel (Anguilla anguilla) |
title_sort |
impairment of lipid storage by cadmium in the european eel (anguilla anguilla) |
publisher |
HAL CCSD |
publishDate |
2007 |
url |
https://hal.inrae.fr/hal-02588903 https://doi.org/10.1016/j.aquatox.2006.12.014 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
ISSN: 0166-445X Aquatic Toxicology https://hal.inrae.fr/hal-02588903 Aquatic Toxicology, Elsevier, 2007, 81 (3), pp.304-311. ⟨10.1016/j.aquatox.2006.12.014⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquatox.2006.12.014 hal-02588903 https://hal.inrae.fr/hal-02588903 doi:10.1016/j.aquatox.2006.12.014 IRSTEA: PUB00021285 |
op_doi |
https://doi.org/10.1016/j.aquatox.2006.12.014 |
container_title |
Aquatic Toxicology |
container_volume |
81 |
container_issue |
3 |
container_start_page |
304 |
op_container_end_page |
311 |
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1766396957661593600 |