Salinity effects on activity and expression of glutathione s-transferases in white sturgeon and Chinook salmon
Identifieur interne : 000224 ( PascalFrancis/Corpus ); précédent : 000223; suivant : 000225Salinity effects on activity and expression of glutathione s-transferases in white sturgeon and Chinook salmon
Auteurs : Rachel T. Donham ; Dexter Morin ; Ronald S. TjeerdemaSource :
- Ecotoxicology and environmental safety : (Print) [ 0147-6513 ] ; 2006.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
This study evaluated the activity and expression of the glutathione S-transferase (GST) detoxification isoenzymes in juvenile white sturgeon (Acipenser transmontanus) and Chinook salmon (Oncorhynchus tshawytscha) during acclimation from freshwater (2%o) to estuarine (15%o) salinity conditions. In white sturgeon, GST activity toward l-chloro-2,4-dinitrobenzene (CDNB) increased significantly (P = 0.005; n = 5) with elevated salinity, but not for the Chinook salmon (P = 0.174; n = 10). GST activity of both sturgeon and salmon toward ethacrynic acid (ETHA) did not significantly change with elevated salinity (P = 0.516 with n = 3, and P = 0.125 with n = 3, respectively). Expression of the GST classes, and hepatic glutathione (GSH) concentration, as determined by HPLC, also did not significantly change with increased salinity. In conclusion, overall GST activity in white sturgeon, but not Chinook salmon, is stimulated by elevated water salinity, thus electrophilic chemicals such as pesticides may be more effectively detoxified by sturgeon as they undergo seaward migration.
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Pour connaître la documentation sur le format Inist Standard.
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Format Inist (serveur)
NO : | PASCAL 06-0172717 INIST |
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ET : | Salinity effects on activity and expression of glutathione s-transferases in white sturgeon and Chinook salmon |
AU : | DONHAM (Rachel T.); MORIN (Dexter); TJEERDEMA (Ronald S.) |
AF : | Department of Environmental Toxicology, College of Agricultural and Environmental Sciences, University of California, 1 Shields Avenue/Davis, CA 95616-8588/Etats-Unis (1 aut., 3 aut.); Department of Molecular Biosciences, School of Veterinary Medicine, University of California, 1 Shields Avenue/Davis, CA 95616/Etats-Unis (2 aut.) |
DT : | Publication en série; Niveau analytique |
SO : | Ecotoxicology and environmental safety : (Print); ISSN 0147-6513; Coden EESADV; Etats-Unis; Da. 2006; Vol. 63; No. 2; Pp. 293-298; Bibl. 21 ref. |
LA : | Anglais |
EA : | This study evaluated the activity and expression of the glutathione S-transferase (GST) detoxification isoenzymes in juvenile white sturgeon (Acipenser transmontanus) and Chinook salmon (Oncorhynchus tshawytscha) during acclimation from freshwater (2%o) to estuarine (15%o) salinity conditions. In white sturgeon, GST activity toward l-chloro-2,4-dinitrobenzene (CDNB) increased significantly (P = 0.005; n = 5) with elevated salinity, but not for the Chinook salmon (P = 0.174; n = 10). GST activity of both sturgeon and salmon toward ethacrynic acid (ETHA) did not significantly change with elevated salinity (P = 0.516 with n = 3, and P = 0.125 with n = 3, respectively). Expression of the GST classes, and hepatic glutathione (GSH) concentration, as determined by HPLC, also did not significantly change with increased salinity. In conclusion, overall GST activity in white sturgeon, but not Chinook salmon, is stimulated by elevated water salinity, thus electrophilic chemicals such as pesticides may be more effectively detoxified by sturgeon as they undergo seaward migration. |
CC : | 002A14D05A; 002A15B |
FD : | Salinité; Glutathione transferase; Ecotoxicologie; Environnement; Détoxication; Acipenser transmontanus; Oncorhynchus tshawytscha |
FG : | Transferases; Enzyme; Facteur milieu; Pisces; Vertebrata; Acipenseridae |
ED : | Salinity; Glutathione transferase; Ecotoxicology; Environment; Detoxification; Acipenser transmontanus; Oncorhynchus tshawytscha |
EG : | Transferases; Enzyme; Environmental factor; Pisces; Vertebrata |
SD : | Salinidad; Glutathione transferase; Ecotoxicología; Medio ambiente; Detoxicación; Acipenser transmontanus; Oncorhynchus tshawytscha |
LO : | INIST-17753.354000133146540130 |
ID : | 06-0172717 |
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Pascal:06-0172717Le document en format XML
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<front><div type="abstract" xml:lang="en">This study evaluated the activity and expression of the glutathione S-transferase (GST) detoxification isoenzymes in juvenile white sturgeon (Acipenser transmontanus) and Chinook salmon (Oncorhynchus tshawytscha) during acclimation from freshwater (2%o) to estuarine (15%o) salinity conditions. In white sturgeon, GST activity toward l-chloro-2,4-dinitrobenzene (CDNB) increased significantly (P = 0.005; n = 5) with elevated salinity, but not for the Chinook salmon (P = 0.174; n = 10). GST activity of both sturgeon and salmon toward ethacrynic acid (ETHA) did not significantly change with elevated salinity (P = 0.516 with n = 3, and P = 0.125 with n = 3, respectively). Expression of the GST classes, and hepatic glutathione (GSH) concentration, as determined by HPLC, also did not significantly change with increased salinity. In conclusion, overall GST activity in white sturgeon, but not Chinook salmon, is stimulated by elevated water salinity, thus electrophilic chemicals such as pesticides may be more effectively detoxified by sturgeon as they undergo seaward migration.</div>
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<server><NO>PASCAL 06-0172717 INIST</NO>
<ET>Salinity effects on activity and expression of glutathione s-transferases in white sturgeon and Chinook salmon</ET>
<AU>DONHAM (Rachel T.); MORIN (Dexter); TJEERDEMA (Ronald S.)</AU>
<AF>Department of Environmental Toxicology, College of Agricultural and Environmental Sciences, University of California, 1 Shields Avenue/Davis, CA 95616-8588/Etats-Unis (1 aut., 3 aut.); Department of Molecular Biosciences, School of Veterinary Medicine, University of California, 1 Shields Avenue/Davis, CA 95616/Etats-Unis (2 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
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<EA>This study evaluated the activity and expression of the glutathione S-transferase (GST) detoxification isoenzymes in juvenile white sturgeon (Acipenser transmontanus) and Chinook salmon (Oncorhynchus tshawytscha) during acclimation from freshwater (2%o) to estuarine (15%o) salinity conditions. In white sturgeon, GST activity toward l-chloro-2,4-dinitrobenzene (CDNB) increased significantly (P = 0.005; n = 5) with elevated salinity, but not for the Chinook salmon (P = 0.174; n = 10). GST activity of both sturgeon and salmon toward ethacrynic acid (ETHA) did not significantly change with elevated salinity (P = 0.516 with n = 3, and P = 0.125 with n = 3, respectively). Expression of the GST classes, and hepatic glutathione (GSH) concentration, as determined by HPLC, also did not significantly change with increased salinity. In conclusion, overall GST activity in white sturgeon, but not Chinook salmon, is stimulated by elevated water salinity, thus electrophilic chemicals such as pesticides may be more effectively detoxified by sturgeon as they undergo seaward migration.</EA>
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