Effects of Alexandrium minutum exposure upon physiological and hematological variables of diploid and triploid oysters, Crassostrea gigas.
International audience The effects of an artificial bloom of the toxin-producing dinoflagellate, Alexandrium minutum, upon physiological parameters of the Pacific oyster, Crassostrea gigas, were assessed. Diploid and triploid oysters were exposed to cultured A. minutum and compared to control diploi...
Published in: | Aquatic Toxicology |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2010
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Subjects: | |
Online Access: | https://hal.science/hal-00589357 https://hal.science/hal-00589357/document https://hal.science/hal-00589357/file/Haberkorn-et-al_2010_AquaTox_97_96-108_MS.pdf https://doi.org/10.1016/j.aquatox.2009.12.006 |
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ftnormandieuniv:oai:HAL:hal-00589357v1 |
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Open Polar |
collection |
Normandie Université: HAL |
op_collection_id |
ftnormandieuniv |
language |
English |
topic |
oysters ploidy physiology harmful algal bloom Alexandrium minutum PST accumulation [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
spellingShingle |
oysters ploidy physiology harmful algal bloom Alexandrium minutum PST accumulation [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis Haberkorn, Hansy Lambert, Christophe Le Goïc, Nelly Guéguen, Marielle Moal, Jeanne Palacios, Elena Lassus, Patrick Soudant, Philippe Effects of Alexandrium minutum exposure upon physiological and hematological variables of diploid and triploid oysters, Crassostrea gigas. |
topic_facet |
oysters ploidy physiology harmful algal bloom Alexandrium minutum PST accumulation [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
description |
International audience The effects of an artificial bloom of the toxin-producing dinoflagellate, Alexandrium minutum, upon physiological parameters of the Pacific oyster, Crassostrea gigas, were assessed. Diploid and triploid oysters were exposed to cultured A. minutum and compared to control diploid and triploid oysters fed T.Isochrysis. Experiments were repeated twice, in April and mid-May 2007, to investigate effects of maturation stage on oyster responses to A. minutum exposure. Oyster maturation stage, Paralytic Shellfish Toxin (PST) accumulation, as well as several digestive-gland and hematological variables, were assessed at the ends of the exposures. In both experiments, triploid oysters accumulated more PSTs (approximately twice) than diploid oysters. Significant differences, in terms of phenoloxidase activity (PO) and reactive oxygen species (ROS) production of hemocytes, were observed between A. minutum-exposed and non-exposed oysters. PO in hemocytes was lower in oysters exposed to A. minutum than in control oysters in an early maturation stage (diploids and triploids in April experiment and triploids in May experiment), but this contrast was reversed in ripe oysters (diploids in May experiment). In the April experiment, granulocytes of oysters exposed to A. minutum produced more ROS than those of control oysters; however, in the May experiment, ROS production of granulocytes was lower in A. minutum-exposed oysters. Moreover, significant decreases in free fatty acid, monoacylglycerol, and diacylglycerol contents in digestive glands of oysters exposed to A. minutum were observed. Concurrently, the ratio of reserve lipids (triacylglycerol, ether glycerides and sterol esters) to structural lipids (sterols) decreased upon A. minutum exposure in both experiments. Also, several physiological responses to A. minutum exposure appeared to be modulated by maturation stage as well as ploidy of the oysters. |
author2 |
Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Université européenne de Bretagne - European University of Brittany (UEB) Laboratoire Phycotoxines (PHYC) Unité Dynamiques des Écosystèmes Côtiers (DYNECO) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Physiologie et Ecophysiologie des Mollusques Marins (PE2M) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) Centro de Investigaciones Biologicas del Noroeste Mexico (CONACYT-CIBNOR) Consejo Nacional de Ciencia y Tecnología Mexico (CONACYT) |
format |
Article in Journal/Newspaper |
author |
Haberkorn, Hansy Lambert, Christophe Le Goïc, Nelly Guéguen, Marielle Moal, Jeanne Palacios, Elena Lassus, Patrick Soudant, Philippe |
author_facet |
Haberkorn, Hansy Lambert, Christophe Le Goïc, Nelly Guéguen, Marielle Moal, Jeanne Palacios, Elena Lassus, Patrick Soudant, Philippe |
author_sort |
Haberkorn, Hansy |
title |
Effects of Alexandrium minutum exposure upon physiological and hematological variables of diploid and triploid oysters, Crassostrea gigas. |
title_short |
Effects of Alexandrium minutum exposure upon physiological and hematological variables of diploid and triploid oysters, Crassostrea gigas. |
title_full |
Effects of Alexandrium minutum exposure upon physiological and hematological variables of diploid and triploid oysters, Crassostrea gigas. |
title_fullStr |
Effects of Alexandrium minutum exposure upon physiological and hematological variables of diploid and triploid oysters, Crassostrea gigas. |
title_full_unstemmed |
Effects of Alexandrium minutum exposure upon physiological and hematological variables of diploid and triploid oysters, Crassostrea gigas. |
title_sort |
effects of alexandrium minutum exposure upon physiological and hematological variables of diploid and triploid oysters, crassostrea gigas. |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://hal.science/hal-00589357 https://hal.science/hal-00589357/document https://hal.science/hal-00589357/file/Haberkorn-et-al_2010_AquaTox_97_96-108_MS.pdf https://doi.org/10.1016/j.aquatox.2009.12.006 |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_source |
ISSN: 0166-445X Aquatic Toxicology https://hal.science/hal-00589357 Aquatic Toxicology, 2010, 97 (2), pp.96-108. ⟨10.1016/j.aquatox.2009.12.006⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquatox.2009.12.006 hal-00589357 https://hal.science/hal-00589357 https://hal.science/hal-00589357/document https://hal.science/hal-00589357/file/Haberkorn-et-al_2010_AquaTox_97_96-108_MS.pdf doi:10.1016/j.aquatox.2009.12.006 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.aquatox.2009.12.006 |
container_title |
Aquatic Toxicology |
container_volume |
97 |
container_issue |
2 |
container_start_page |
96 |
op_container_end_page |
108 |
_version_ |
1799478843425161216 |
spelling |
ftnormandieuniv:oai:HAL:hal-00589357v1 2024-05-19T07:39:17+00:00 Effects of Alexandrium minutum exposure upon physiological and hematological variables of diploid and triploid oysters, Crassostrea gigas. Haberkorn, Hansy Lambert, Christophe Le Goïc, Nelly Guéguen, Marielle Moal, Jeanne Palacios, Elena Lassus, Patrick Soudant, Philippe Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Université européenne de Bretagne - European University of Brittany (UEB) Laboratoire Phycotoxines (PHYC) Unité Dynamiques des Écosystèmes Côtiers (DYNECO) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Physiologie et Ecophysiologie des Mollusques Marins (PE2M) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS) Centro de Investigaciones Biologicas del Noroeste Mexico (CONACYT-CIBNOR) Consejo Nacional de Ciencia y Tecnología Mexico (CONACYT) 2010-04-15 https://hal.science/hal-00589357 https://hal.science/hal-00589357/document https://hal.science/hal-00589357/file/Haberkorn-et-al_2010_AquaTox_97_96-108_MS.pdf https://doi.org/10.1016/j.aquatox.2009.12.006 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquatox.2009.12.006 hal-00589357 https://hal.science/hal-00589357 https://hal.science/hal-00589357/document https://hal.science/hal-00589357/file/Haberkorn-et-al_2010_AquaTox_97_96-108_MS.pdf doi:10.1016/j.aquatox.2009.12.006 info:eu-repo/semantics/OpenAccess ISSN: 0166-445X Aquatic Toxicology https://hal.science/hal-00589357 Aquatic Toxicology, 2010, 97 (2), pp.96-108. ⟨10.1016/j.aquatox.2009.12.006⟩ oysters ploidy physiology harmful algal bloom Alexandrium minutum PST accumulation [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis info:eu-repo/semantics/article Journal articles 2010 ftnormandieuniv https://doi.org/10.1016/j.aquatox.2009.12.006 2024-05-01T23:50:47Z International audience The effects of an artificial bloom of the toxin-producing dinoflagellate, Alexandrium minutum, upon physiological parameters of the Pacific oyster, Crassostrea gigas, were assessed. Diploid and triploid oysters were exposed to cultured A. minutum and compared to control diploid and triploid oysters fed T.Isochrysis. Experiments were repeated twice, in April and mid-May 2007, to investigate effects of maturation stage on oyster responses to A. minutum exposure. Oyster maturation stage, Paralytic Shellfish Toxin (PST) accumulation, as well as several digestive-gland and hematological variables, were assessed at the ends of the exposures. In both experiments, triploid oysters accumulated more PSTs (approximately twice) than diploid oysters. Significant differences, in terms of phenoloxidase activity (PO) and reactive oxygen species (ROS) production of hemocytes, were observed between A. minutum-exposed and non-exposed oysters. PO in hemocytes was lower in oysters exposed to A. minutum than in control oysters in an early maturation stage (diploids and triploids in April experiment and triploids in May experiment), but this contrast was reversed in ripe oysters (diploids in May experiment). In the April experiment, granulocytes of oysters exposed to A. minutum produced more ROS than those of control oysters; however, in the May experiment, ROS production of granulocytes was lower in A. minutum-exposed oysters. Moreover, significant decreases in free fatty acid, monoacylglycerol, and diacylglycerol contents in digestive glands of oysters exposed to A. minutum were observed. Concurrently, the ratio of reserve lipids (triacylglycerol, ether glycerides and sterol esters) to structural lipids (sterols) decreased upon A. minutum exposure in both experiments. Also, several physiological responses to A. minutum exposure appeared to be modulated by maturation stage as well as ploidy of the oysters. Article in Journal/Newspaper Crassostrea gigas Pacific oyster Normandie Université: HAL Aquatic Toxicology 97 2 96 108 |