The activity of glutathione S-transferase in hepatopancreas of Procambarus clarkii: Seasonal variations and the influence of environmental pollutants

Abstract 1. 1The glutathione S -transferase activity in hepatopancreas of the American red crayfish Procambarus clarkii after 15 days' acclimatization in tap water aquaria was measured in specimens collected monthly for a whole year, and shows seasonal variation. 2. 2. Previous data on the environmental pollution of Lake Albufera suggest a possible correlation with the activity tested in the different seasons of the year considering the results of non-acclimatized animals.

The effect of two sulphur-containing pesticides, fenitrothion and endosulfan, on glutathione (GSH) content and on GSH S-transferase and gamma-glutamyl transpeptidase activities in midgut gland of the American red crayfish Procambarus clarkii.

The glutathione (GSH) system of Procambarus clarkii (P.c.), the American red crayfish, is used as a marker of the effects of Fenitrothion (FT) and Endosulfan (ES), organophosphorus and organochlorinated insecticides, respectively. This system has been shown to be sensitive to different heavy metals poisoning, thus it has a double interest as marker for environmental contamination and as a potential source of xenobiotics or their metabolites to humans, since it is being fished commercially. The GSH content of the organ decreased 24 h after treatment with FT. FT promotes a 2-fold induction of GSH S-transferase (GST) activity at 6 h which is followed by a decrease of it at 24 h. The latter coi…

Temperature-toxicity relationships of fluvalinate (synthetic pyrethroid) on Procambarus clarkii (Girard) under laboratory conditions.

Acute toxicity of organochlorined pesticides to the European eel,Anguilla anguilla: The dependency on exposure time and temperature

Glutathione content, glutathione S-transferase and γ-glutamyltranspeptidase activities in mid-gut gland of Procambarus clarkii: time course in the presence of cadmium