Functional capacities of gill mitochondria in oyster Crassostrea gigas during an emersion/immersion tidal cycle
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 close...
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ftarchimer:oai:archimer.ifremer.fr:26854 2023-05-15T15:57:42+02:00 Functional capacities of gill mitochondria in oyster Crassostrea gigas during an emersion/immersion tidal cycle Dudognon, Tony Soudant, Philippe Seguineau, Catherine Quere, Claudie Auffret, Michel Kraffe, Edouard 2013-07 application/pdf https://archimer.ifremer.fr/doc/00157/26854/24981.pdf https://doi.org/10.1051/alr/2013053 https://archimer.ifremer.fr/doc/00157/26854/ eng eng Edp Sciences S A https://archimer.ifremer.fr/doc/00157/26854/24981.pdf doi:10.1051/alr/2013053 https://archimer.ifremer.fr/doc/00157/26854/ EDP Sciences, IFREMER, IRD 2013 info:eu-repo/semantics/openAccess restricted use Aquatic Living Resources (0990-7440) (Edp Sciences S A), 2013-07 , Vol. 26 , N. 3 , P. 249-256 Mitochondria oxygen consumption ATP production respiratory chain inhibitor Crassostrea gigas text Publication info:eu-repo/semantics/article 2013 ftarchimer https://doi.org/10.1051/alr/2013053 2021-09-23T20:23:29Z 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 Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Aquatic Living Resources 26 3 249 256 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Mitochondria oxygen consumption ATP production respiratory chain inhibitor Crassostrea gigas |
spellingShingle |
Mitochondria oxygen consumption ATP production respiratory chain inhibitor Crassostrea gigas Dudognon, Tony Soudant, Philippe Seguineau, Catherine Quere, 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 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Dudognon, Tony Soudant, Philippe Seguineau, Catherine Quere, Claudie Auffret, Michel Kraffe, Edouard |
author_facet |
Dudognon, Tony Soudant, Philippe Seguineau, Catherine Quere, 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 |
Edp Sciences S A |
publishDate |
2013 |
url |
https://archimer.ifremer.fr/doc/00157/26854/24981.pdf https://doi.org/10.1051/alr/2013053 https://archimer.ifremer.fr/doc/00157/26854/ |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Aquatic Living Resources (0990-7440) (Edp Sciences S A), 2013-07 , Vol. 26 , N. 3 , P. 249-256 |
op_relation |
https://archimer.ifremer.fr/doc/00157/26854/24981.pdf doi:10.1051/alr/2013053 https://archimer.ifremer.fr/doc/00157/26854/ |
op_rights |
EDP Sciences, IFREMER, IRD 2013 info:eu-repo/semantics/openAccess restricted use |
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 |
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1766393379475685376 |