Functional capacities of gill mitochondria in oyster Crassostrea gigas during an emersion/immersion tidal cycle
International audience Sessile animals that live on the foreshore undergo tidal cycles, and have to face variations in physical and chemical parameters such as oxygen concentration. During emersion, availability of dissolved oxygen can be lowered for bivalves, which have only a small reserve of seaw...
Published in: | Aquatic Living Resources |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2013
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Online Access: | https://doi.org/10.1051/alr/2013053 https://hal.univ-brest.fr/hal-00946720/file/Dudognon_et_al._2013.pdf https://hal.univ-brest.fr/hal-00946720 |
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fttriple:oai:gotriple.eu:10670/1.yu6m56 2023-05-15T15:57:44+02:00 Functional capacities of gill mitochondria in oyster Crassostrea gigas during an emersion/immersion tidal cycle Dudognon, Tony Soudant, Philippe Séguineau, Catherine Quéré, Claudie Auffret, Michel Kraffe, Edouard 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 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) 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) 2013-07-19 https://doi.org/10.1051/alr/2013053 https://hal.univ-brest.fr/hal-00946720/file/Dudognon_et_al._2013.pdf https://hal.univ-brest.fr/hal-00946720 en eng HAL CCSD EDP Sciences hal-00946720 doi:10.1051/alr/2013053 10670/1.yu6m56 https://hal.univ-brest.fr/hal-00946720/file/Dudognon_et_al._2013.pdf https://hal.univ-brest.fr/hal-00946720 other Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0990-7440 EISSN: 1765-2952 Aquatic Living Resources Aquatic Living Resources, EDP Sciences, 2013, 26 (3), pp.249-256. ⟨10.1051/alr/2013053⟩ Mitochondria oxygen consumption ATP production respiratory chain inhibitor Crassostrea gigas envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2013 fttriple https://doi.org/10.1051/alr/2013053 2023-01-22T17:35:23Z International audience Sessile animals that live on the foreshore undergo tidal cycles, and have to face variations in physical and chemical parameters such as oxygen concentration. During emersion, availability of dissolved oxygen can be lowered for bivalves, which have only a small reserve of seawater inside their closed shell. Differences in oxygen concentration are thus expected to lead to modifications of the metabolism, including changes in mitochondrial activity. Previous studies investigated air exposure under extreme conditions, which do not always reflect environmental conditions these invertebrates have to cope with. In this study, oxidative capacities of gill mitochondria of the oyster Crassostrea gigas were studied during a tidal cycle period, by comparing oysters collected after emersion and immersion. Only minor differences were found in state 3 (oxidative phosphorylation) or state 4 (non-phosphorylating oxygen consumption) rates between the two conditions. Similarly, no difference was observed in cytochrome c oxidase activity or in oxygen consumption related to maximal electron flux through complexes I-IV, II-IV and IV. While capacities of substrate oxidation were maintained in both emersion and immersion conditions, capacity of mitochondria to produce adenosine triphosphate (ATP) was significantly lower in oysters sampled during emersion. These results suggest that although C. gigas could maintain aerobic metabolism during emersion period within a tidal cycle in its environment, energy producing mechanisms are affected. Article in Journal/Newspaper Crassostrea gigas Unknown Aquatic Living Resources 26 3 249 256 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
Mitochondria oxygen consumption ATP production respiratory chain inhibitor Crassostrea gigas envir geo |
spellingShingle |
Mitochondria oxygen consumption ATP production respiratory chain inhibitor Crassostrea gigas envir geo Dudognon, Tony Soudant, Philippe Séguineau, Catherine Quéré, Claudie Auffret, Michel Kraffe, Edouard Functional capacities of gill mitochondria in oyster Crassostrea gigas during an emersion/immersion tidal cycle |
topic_facet |
Mitochondria oxygen consumption ATP production respiratory chain inhibitor Crassostrea gigas envir geo |
description |
International audience Sessile animals that live on the foreshore undergo tidal cycles, and have to face variations in physical and chemical parameters such as oxygen concentration. During emersion, availability of dissolved oxygen can be lowered for bivalves, which have only a small reserve of seawater inside their closed shell. Differences in oxygen concentration are thus expected to lead to modifications of the metabolism, including changes in mitochondrial activity. Previous studies investigated air exposure under extreme conditions, which do not always reflect environmental conditions these invertebrates have to cope with. In this study, oxidative capacities of gill mitochondria of the oyster Crassostrea gigas were studied during a tidal cycle period, by comparing oysters collected after emersion and immersion. Only minor differences were found in state 3 (oxidative phosphorylation) or state 4 (non-phosphorylating oxygen consumption) rates between the two conditions. Similarly, no difference was observed in cytochrome c oxidase activity or in oxygen consumption related to maximal electron flux through complexes I-IV, II-IV and IV. While capacities of substrate oxidation were maintained in both emersion and immersion conditions, capacity of mitochondria to produce adenosine triphosphate (ATP) was significantly lower in oysters sampled during emersion. These results suggest that although C. gigas could maintain aerobic metabolism during emersion period within a tidal cycle in its environment, energy producing mechanisms are affected. |
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 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) 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) |
format |
Article in Journal/Newspaper |
author |
Dudognon, Tony Soudant, Philippe Séguineau, Catherine Quéré, Claudie Auffret, Michel Kraffe, Edouard |
author_facet |
Dudognon, Tony Soudant, Philippe Séguineau, Catherine Quéré, Claudie Auffret, Michel Kraffe, Edouard |
author_sort |
Dudognon, Tony |
title |
Functional capacities of gill mitochondria in oyster Crassostrea gigas during an emersion/immersion tidal cycle |
title_short |
Functional capacities of gill mitochondria in oyster Crassostrea gigas during an emersion/immersion tidal cycle |
title_full |
Functional capacities of gill mitochondria in oyster Crassostrea gigas during an emersion/immersion tidal cycle |
title_fullStr |
Functional capacities of gill mitochondria in oyster Crassostrea gigas during an emersion/immersion tidal cycle |
title_full_unstemmed |
Functional capacities of gill mitochondria in oyster Crassostrea gigas during an emersion/immersion tidal cycle |
title_sort |
functional capacities of gill mitochondria in oyster crassostrea gigas during an emersion/immersion tidal cycle |
publisher |
HAL CCSD |
publishDate |
2013 |
url |
https://doi.org/10.1051/alr/2013053 https://hal.univ-brest.fr/hal-00946720/file/Dudognon_et_al._2013.pdf https://hal.univ-brest.fr/hal-00946720 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0990-7440 EISSN: 1765-2952 Aquatic Living Resources Aquatic Living Resources, EDP Sciences, 2013, 26 (3), pp.249-256. ⟨10.1051/alr/2013053⟩ |
op_relation |
hal-00946720 doi:10.1051/alr/2013053 10670/1.yu6m56 https://hal.univ-brest.fr/hal-00946720/file/Dudognon_et_al._2013.pdf https://hal.univ-brest.fr/hal-00946720 |
op_rights |
other |
op_doi |
https://doi.org/10.1051/alr/2013053 |
container_title |
Aquatic Living Resources |
container_volume |
26 |
container_issue |
3 |
container_start_page |
249 |
op_container_end_page |
256 |
_version_ |
1766393429967765504 |