Biochemical effects of nonyphenol polyethoxylate adjuvant and diquat herbicide on three-spined stickleback (Gasterosteus aculeatus L.)

Wilfried Sanchez (1) , Olivier Palluel (1) , Laurent Lagadic (2) , Jean Pierre J. P. Cravedi (3) , Jean-Marc Porcher (1)

1 INERIS - Institut National de l'Environnement Industriel et des Risques
2 INRA - Institut National de la Recherche Agronomique
3 Xénobiotiques

This study examined the response of 7-ethoxyresorufine-O-deethylase (EROD), glutathione-S-transferase (GST), glutathione peroxidase (GPx), glutathione content (GSH), level of thiobarbituric acid reactive compounds (TBARS) and circulating vitellogenin, in three-spined sticklebacks after 21 days of exposure to Diquat herbicide, commercial nonylphenol polyethoxylate (NPEO) adjuvant and mixture between Diquat and adjuvant. The results showed that adjuvant exerted more important oxidative effects than Diquat and that mixture effects were unlike to single additivity. This study argues for ecotoxicological risk assessment of adjuvants and mixtures of adjuvants and pesticides.

Keywords: NONYLPHENOL POLYETHOXYLATE; HERBICIDE; OXIDATIVE STRESS; BIOTRANSFORMATION ENZYMES; VITELLOGENIN; THREE-SPINED STICKLEBACK

Domains: Ecotoxicology; Environmental Sciences

Wilfried Sanchez, Olivier Palluel, Laurent Lagadic, Jean Pierre J. P. Cravedi, Jean-Marc Porcher. Biochemical effects of nonyphenol polyethoxylate adjuvant and diquat herbicide on three-spined stickleback (Gasterosteus aculeatus L.). 13. International Symposium on pollutant responses in marine organisms, Jun 2005, Alessandria, Italy. ⟨ineris-00972490⟩