Tidal height influences the levels of enzymatic antioxidant defences in Mytilus edulis.
Identifieur interne : 000917 ( France/Analysis ); précédent : 000916; suivant : 000918Tidal height influences the levels of enzymatic antioxidant defences in Mytilus edulis.
Auteurs : Julie Letendre [France] ; Bastien Chouquet ; Hélène Manduzio ; Matthieu Marin ; Florence Bultelle ; François Leboulenger ; Fabrice DurandSource :
- Marine environmental research [ 0141-1136 ] ; 2009.
English descriptors
- KwdEn :
- MESH :
- chemical , metabolism : Antioxidants, Catalase, Glutathione Peroxidase, Glutathione Reductase, Glutathione Transferase, Superoxide Dismutase.
- enzymology : Mytilus edulis.
- Acclimatization, Animals, Seasons, Stress, Physiological, Water Movements.
Abstract
We investigated the potential variability of enzymatic antioxidant activities in blue mussels Mytilus edulis from a single intertidal population but living at different tidal heights. Activity levels of antioxidant enzymes (Cu/Zn superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, glutathione transferase) were measured in the gills and digestive gland of mussels sampled at high shore (HS, air-exposure>6h/12h) and low shore (LS, air-exposure<2h/12h) of an intertidal zone (Yport, Normandie, France) for two consecutive autumns. In both tissues, levels of each enzymatic activity (except GST) were clearly higher in HS mussels than in LS for the two years. These results suggest an ability to acclimate the enzymatic antioxidant defences to the degree of undergone stress, confirming the importance of environmental conditions in the antioxidant responses. Therefore, the location of organisms on the shore should be taken into account in sampling for ecotoxicological studies.
DOI: 10.1016/j.marenvres.2008.11.003
PubMed: 19111336
Affiliations:
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pubmed:19111336Le document en format XML
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Lebon B.P. 540, 76058 Le Havre Cedex, France. julie.letendre@univ-lehavre.fr</nlm:affiliation><country xml:lang="fr">France</country><wicri:regionArea>Laboratoire d'Ecotoxicologie des Milieux Aquatiques, Université du Havre, 25 rue Ph. Lebon B.P. 540, 76058 Le Havre Cedex</wicri:regionArea><placeName><region type="region" nuts="2">Région Normandie</region><region type="old region" nuts="2">Haute-Normandie</region><settlement type="city">Le Havre</settlement></placeName><orgName type="university">Université du Havre</orgName></affiliation></author><author><name sortKey="Chouquet, Bastien" sort="Chouquet, Bastien" uniqKey="Chouquet B" first="Bastien" last="Chouquet">Bastien Chouquet</name></author><author><name sortKey="Manduzio, Helene" sort="Manduzio, Helene" uniqKey="Manduzio H" first="Hélène" last="Manduzio">Hélène Manduzio</name></author><author><name sortKey="Marin, Matthieu" sort="Marin, Matthieu" uniqKey="Marin M" first="Matthieu" last="Marin">Matthieu Marin</name></author><author><name sortKey="Bultelle, Florence" sort="Bultelle, Florence" uniqKey="Bultelle F" first="Florence" last="Bultelle">Florence Bultelle</name></author><author><name sortKey="Leboulenger, Francois" sort="Leboulenger, Francois" uniqKey="Leboulenger F" first="François" last="Leboulenger">François Leboulenger</name></author><author><name sortKey="Durand, Fabrice" sort="Durand, Fabrice" uniqKey="Durand F" first="Fabrice" last="Durand">Fabrice Durand</name></author></analytic><series><title level="j">Marine environmental research</title><idno type="ISSN">0141-1136</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acclimatization</term><term>Animals</term><term>Antioxidants (metabolism)</term><term>Catalase (metabolism)</term><term>Glutathione Peroxidase (metabolism)</term><term>Glutathione Reductase (metabolism)</term><term>Glutathione Transferase (metabolism)</term><term>Mytilus edulis (enzymology)</term><term>Seasons</term><term>Stress, Physiological</term><term>Superoxide Dismutase (metabolism)</term><term>Water Movements</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Antioxidants</term><term>Catalase</term><term>Glutathione Peroxidase</term><term>Glutathione Reductase</term><term>Glutathione Transferase</term><term>Superoxide Dismutase</term></keywords><keywords scheme="MESH" qualifier="enzymology" xml:lang="en"><term>Mytilus edulis</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Acclimatization</term><term>Animals</term><term>Seasons</term><term>Stress, Physiological</term><term>Water Movements</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We investigated the potential variability of enzymatic antioxidant activities in blue mussels Mytilus edulis from a single intertidal population but living at different tidal heights. Activity levels of antioxidant enzymes (Cu/Zn superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase, glutathione transferase) were measured in the gills and digestive gland of mussels sampled at high shore (HS, air-exposure>6h/12h) and low shore (LS, air-exposure<2h/12h) of an intertidal zone (Yport, Normandie, France) for two consecutive autumns. In both tissues, levels of each enzymatic activity (except GST) were clearly higher in HS mussels than in LS for the two years. These results suggest an ability to acclimate the enzymatic antioxidant defences to the degree of undergone stress, confirming the importance of environmental conditions in the antioxidant responses. Therefore, the location of organisms on the shore should be taken into account in sampling for ecotoxicological studies.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Haute-Normandie</li><li>Région Normandie</li></region><settlement><li>Le Havre</li></settlement><orgName><li>Université du Havre</li></orgName></list><tree><noCountry><name sortKey="Bultelle, Florence" sort="Bultelle, Florence" uniqKey="Bultelle F" first="Florence" last="Bultelle">Florence Bultelle</name><name sortKey="Chouquet, Bastien" sort="Chouquet, Bastien" uniqKey="Chouquet B" first="Bastien" last="Chouquet">Bastien Chouquet</name><name sortKey="Durand, Fabrice" sort="Durand, Fabrice" uniqKey="Durand F" first="Fabrice" last="Durand">Fabrice Durand</name><name sortKey="Leboulenger, Francois" sort="Leboulenger, Francois" uniqKey="Leboulenger F" first="François" last="Leboulenger">François Leboulenger</name><name sortKey="Manduzio, Helene" sort="Manduzio, Helene" uniqKey="Manduzio H" first="Hélène" last="Manduzio">Hélène Manduzio</name><name sortKey="Marin, Matthieu" sort="Marin, Matthieu" uniqKey="Marin M" first="Matthieu" last="Marin">Matthieu Marin</name></noCountry><country name="France"><region name="Région Normandie"><name sortKey="Letendre, Julie" sort="Letendre, Julie" uniqKey="Letendre J" first="Julie" last="Letendre">Julie Letendre</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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