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Thermal and metabolic factors affecting bioaccumulation of triazine herbicides by rainbow trout (Oncorhynchus mykiss)
10.1002/tox.10118.abs
The bioaccumulation of the triazine herbicides terbutryn and terbuthylazine in rainbow trout was investigated at water temperatures of 4°C, 10°C, and 17°C. The synergetic effect of water temperature and herbicide on fish liver detoxification metabolism was also studied by measuring liver ethoxyresorufin‐O‐deethylase (EROD) and UDP‐glucuronosyltransferase (UDPGT) activities. The bioaccumulation of terbutryn increased significantly with increasing water temperature. However, temperature seemed to have no effect on the bioaccumulation of terbuthylazine. Both chemicals decreased the measured enzyme activities. Also, temperature effects were significant. In all tests the highest liver EROD activities were measured in fish exposed to a water temperature of 4°C, and the activities decreased with increasing water temperature. The thermal effects on fish liver UDPGT activity differed between the herbicides. The highest activities at a water temperature of 4°C were measured in fish exposed to terbutryn, whereas fish exposed to terbuthylazine had the highest liver UDPGT activities at 17°C. Measuring liver detoxification metabolism together with bioaccumulation increases the understanding of bioaccumulation of chemicals in different environmental conditions. © 2003 Wiley Periodicals, Inc. Environ Toxicol 18: 219–226, 2003.
Thermal and metabolic factors affecting bioaccumulation of triazine herbicides by rainbow trout (Oncorhynchus mykiss)
10.1002/tox.10118.abs
The bioaccumulation of the triazine herbicides terbutryn and terbuthylazine in rainbow trout was investigated at water temperatures of 4°C, 10°C, and 17°C. The synergetic effect of water temperature and herbicide on fish liver detoxification metabolism was also studied by measuring liver ethoxyresorufin‐O‐deethylase (EROD) and UDP‐glucuronosyltransferase (UDPGT) activities. The bioaccumulation of terbutryn increased significantly with increasing water temperature. However, temperature seemed to have no effect on the bioaccumulation of terbuthylazine. Both chemicals decreased the measured enzyme activities. Also, temperature effects were significant. In all tests the highest liver EROD activities were measured in fish exposed to a water temperature of 4°C, and the activities decreased with increasing water temperature. The thermal effects on fish liver UDPGT activity differed between the herbicides. The highest activities at a water temperature of 4°C were measured in fish exposed to terbutryn, whereas fish exposed to terbuthylazine had the highest liver UDPGT activities at 17°C. Measuring liver detoxification metabolism together with bioaccumulation increases the understanding of bioaccumulation of chemicals in different environmental conditions. © 2003 Wiley Periodicals, Inc. Environ Toxicol 18: 219–226, 2003.
Thermal and metabolic factors affecting bioaccumulation of triazine herbicides by rainbow trout (Oncorhynchus mykiss)
Tarja, Nakari (author) / Kirsti, Erkomaa (author) / Marja, Luotola (author) / Kari, Ennola (author)
Environmental Toxicology ; 18 ; 219-226
2003-01-01
8 pages
Article (Journal)
Electronic Resource
English
| British Library Conference Proceedings | 1997
| British Library Online Contents | 2010
Accumulation Profiles in Rainbow Trout (Oncorhynchus mykiss) After Short-Term Exposure to Cadmium
| Online Contents | 1997