| Autor: |
Villagran, Diana M1 (AUTHOR) dianavillagran88@gmail.com, Lombardero, Lucas R1 (AUTHOR), Crupkin, Andrea C1,2 (AUTHOR), Mendieta, Julieta R2,3 (AUTHOR), Medici, Sandra K4,5 (AUTHOR), Lavarello, Francisco6 (AUTHOR), Simoniello, M Fernanda7 (AUTHOR), Menone, Mirta L1 (AUTHOR) |
| Zdroj: |
Bulletin of Environmental Contamination & Toxicology. Sep2023, Vol. 111 Issue 3, p1-7. 7p. |
| Abstrakt: |
Dicamba (DIC) is one of the most applied auxin herbicides worldwide. Sublethal effects in the South American native fish Jenynsia lineata exposed to DIC concentrations close to environmental concentrations (0.03–30 µg/L) during 48 h were analysed thorough the evaluation of catalase (CAT), glutathione S-transferase (GST), superoxide dismutase (SOD) activities and malondialdehyde (MDA) and H2O2 levels for detecting potential oxidative stress. In gills MDA increased showing oxidative damage probably because of an inefficient antioxidant defense. This response evidenced the important role of gills as an organ of direct contact with waterborne contaminants. In addition, other changes in the biomarkers of oxidative stress were observed such as the inhibition of SOD activities in brain and the inhibition of GST in liver. These results show that short- term exposures to environmentally relevant concentrations of DIC could induce sublethal effects in native fish. [ABSTRACT FROM AUTHOR] |
| Databáze: |
GreenFILE |
| Externí odkaz: |
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