Impairment of lipid storage by cadmium in the European eel (Anguilla anguilla)
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, call...
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ftcemoa:oai:irsteadoc.irstea.fr:PUB00021285 2023-05-15T13:26:50+02:00 Impairment of lipid storage by cadmium in the European eel (Anguilla anguilla) Pierron, F. Baudrimont, M. Bossy, A. Bourdineaud, J.P. Brethes, D. Elie, P. Massabuau, J.C. EPOC ARCACHON IBGC BORDEAUX CEMAGREF BORDEAUX EPBX 2007 application/pdf https://irsteadoc.irstea.fr/cemoa/PUB00021285 Anglais eng http://dx.doi.org/10.1016/j.aquatox.2006.12.014 https://irsteadoc.irstea.fr/cemoa/PUB00021285 Date de dépôt: 2007-01-26 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). 17881 ANGUILLA ANGUILLA CADMIUM POLLUTION DE L'EAU CONTAMINATION CHIMIQUE LIPIDE DEVELOPPEMENT BIOLOGIQUE CHEMICAL CONTAMINATION LIPIDS BIOLOGICAL DEVELOPMENT WATER POLLUTION Article de revue scientifique à comité de lecture 2007 ftcemoa https://doi.org/10.1016/j.aquatox.2006.12.014 2021-06-29T08:54:04Z 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 Irstea Publications et Bases documentaires (Irstea@doc/CemOA) Aquatic Toxicology 81 3 304 311 |
institution |
Open Polar |
collection |
Irstea Publications et Bases documentaires (Irstea@doc/CemOA) |
op_collection_id |
ftcemoa |
language |
English |
topic |
ANGUILLA ANGUILLA CADMIUM POLLUTION DE L'EAU CONTAMINATION CHIMIQUE LIPIDE DEVELOPPEMENT BIOLOGIQUE CHEMICAL CONTAMINATION LIPIDS BIOLOGICAL DEVELOPMENT WATER POLLUTION |
spellingShingle |
ANGUILLA ANGUILLA CADMIUM POLLUTION DE L'EAU CONTAMINATION CHIMIQUE LIPIDE DEVELOPPEMENT BIOLOGIQUE CHEMICAL CONTAMINATION LIPIDS BIOLOGICAL DEVELOPMENT WATER POLLUTION Pierron, F. Baudrimont, M. Bossy, A. Bourdineaud, J.P. Brethes, D. Elie, P. Massabuau, J.C. Impairment of lipid storage by cadmium in the European eel (Anguilla anguilla) |
topic_facet |
ANGUILLA ANGUILLA CADMIUM POLLUTION DE L'EAU CONTAMINATION CHIMIQUE LIPIDE DEVELOPPEMENT BIOLOGIQUE CHEMICAL CONTAMINATION LIPIDS BIOLOGICAL DEVELOPMENT WATER POLLUTION |
description |
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 |
EPOC ARCACHON IBGC BORDEAUX CEMAGREF BORDEAUX EPBX |
format |
Article in Journal/Newspaper |
author |
Pierron, F. Baudrimont, M. Bossy, A. Bourdineaud, J.P. Brethes, D. Elie, P. Massabuau, J.C. |
author_facet |
Pierron, F. Baudrimont, M. Bossy, A. Bourdineaud, J.P. Brethes, D. Elie, P. 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) |
publishDate |
2007 |
url |
https://irsteadoc.irstea.fr/cemoa/PUB00021285 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
17881 |
op_relation |
http://dx.doi.org/10.1016/j.aquatox.2006.12.014 https://irsteadoc.irstea.fr/cemoa/PUB00021285 |
op_rights |
Date de dépôt: 2007-01-26 - Tous les documents et informations contenus dans la base CemOA Publications sont protégés en vertu du droit de propriété intellectuelle, en particulier par le droit d'auteur. La personne consultant la base CemOA Publications peut visualiser, reproduire, ou stocker des copies des publications, à condition que l'information soit seulement pour son usage personnel et non commercial. L'utilisation des travaux universitaires est soumise à autorisation préalable de leurs auteurs. Toute information relative au signalement d'une publication contenue dans CemOA Publications doit inclure la citation bibliographique usuelle : Nom du ou des auteurs, titre et source du document, date et URL de la notice (dc_identifier). |
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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1766394749572349952 |