Serveur d'exploration sur l'esturgeon

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Salinity effects on activity and expression of glutathione s-transferases in white sturgeon and Chinook salmon

Identifieur interne : 000152 ( PascalFrancis/Curation ); précédent : 000151; suivant : 000153

Salinity effects on activity and expression of glutathione s-transferases in white sturgeon and Chinook salmon

Auteurs : Rachel T. Donham [États-Unis] ; Dexter Morin [États-Unis] ; Ronald S. Tjeerdema [États-Unis]

Source :

RBID : Pascal:06-0172717

Descripteurs français

English descriptors

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.
pA  
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A02 01      @0 EESADV
A03   1    @0 Ecotoxicol. environ. saf. : (Print)
A05       @2 63
A06       @2 2
A08 01  1  ENG  @1 Salinity effects on activity and expression of glutathione s-transferases in white sturgeon and Chinook salmon
A11 01  1    @1 DONHAM (Rachel T.)
A11 02  1    @1 MORIN (Dexter)
A11 03  1    @1 TJEERDEMA (Ronald S.)
A14 01      @1 Department of Environmental Toxicology, College of Agricultural and Environmental Sciences, University of California, 1 Shields Avenue @2 Davis, CA 95616-8588 @3 USA @Z 1 aut. @Z 3 aut.
A14 02      @1 Department of Molecular Biosciences, School of Veterinary Medicine, University of California, 1 Shields Avenue @2 Davis, CA 95616 @3 USA @Z 2 aut.
A20       @1 293-298
A21       @1 2006
A23 01      @0 ENG
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A44       @0 0000 @1 © 2006 INIST-CNRS. All rights reserved.
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A60       @1 P
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C01 01    ENG  @0 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.
C02 01  X    @0 002A14D05A
C02 02  X    @0 002A15B
C03 01  X  FRE  @0 Salinité @5 01
C03 01  X  ENG  @0 Salinity @5 01
C03 01  X  SPA  @0 Salinidad @5 01
C03 02  X  FRE  @0 Glutathione transferase @2 FE @5 02
C03 02  X  ENG  @0 Glutathione transferase @2 FE @5 02
C03 02  X  SPA  @0 Glutathione transferase @2 FE @5 02
C03 03  X  FRE  @0 Ecotoxicologie @5 03
C03 03  X  ENG  @0 Ecotoxicology @5 03
C03 03  X  SPA  @0 Ecotoxicología @5 03
C03 04  X  FRE  @0 Environnement @5 04
C03 04  X  ENG  @0 Environment @5 04
C03 04  X  SPA  @0 Medio ambiente @5 04
C03 05  X  FRE  @0 Détoxication @5 23
C03 05  X  ENG  @0 Detoxification @5 23
C03 05  X  SPA  @0 Detoxicación @5 23
C03 06  X  FRE  @0 Acipenser transmontanus @2 NS @5 49
C03 06  X  ENG  @0 Acipenser transmontanus @2 NS @5 49
C03 06  X  SPA  @0 Acipenser transmontanus @2 NS @5 49
C03 07  X  FRE  @0 Oncorhynchus tshawytscha @2 NS @5 50
C03 07  X  ENG  @0 Oncorhynchus tshawytscha @2 NS @5 50
C03 07  X  SPA  @0 Oncorhynchus tshawytscha @2 NS @5 50
C07 01  X  FRE  @0 Transferases @2 FE
C07 01  X  ENG  @0 Transferases @2 FE
C07 01  X  SPA  @0 Transferases @2 FE
C07 02  X  FRE  @0 Enzyme @2 FE
C07 02  X  ENG  @0 Enzyme @2 FE
C07 02  X  SPA  @0 Enzima @2 FE
C07 03  X  FRE  @0 Facteur milieu @5 17
C07 03  X  ENG  @0 Environmental factor @5 17
C07 03  X  SPA  @0 Factor medio @5 17
C07 04  X  FRE  @0 Pisces @2 NS @5 29
C07 04  X  ENG  @0 Pisces @2 NS @5 29
C07 04  X  SPA  @0 Pisces @2 NS @5 29
C07 05  X  FRE  @0 Vertebrata @2 NS
C07 05  X  ENG  @0 Vertebrata @2 NS
C07 05  X  SPA  @0 Vertebrata @2 NS
C07 06  X  FRE  @0 Acipenseridae @4 INC @5 70
N21       @1 107
N44 01      @1 OTO
N82       @1 OTO

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Pascal:06-0172717

Le document en format XML

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<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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   |étape=   Curation
   |type=    RBID
   |clé=     Pascal:06-0172717
   |texte=   Salinity effects on activity and expression of glutathione s-transferases in white sturgeon and Chinook salmon
}}

Wicri

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