Acute exposure to a commercial formulation of Azoxystrobin alters antioxidant enzymes and elicit damage in the aquatic macrophyte Myriophyllum quitense
| Autor: | Lucia D. Moreyra, Mirta Lujan Menone, Daniela Soledad Garanzini, Sandra Karina Medici |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine Antioxidant Physiology medicine.medical_treatment Otras Ciencias de la Tierra y relacionadas con el Medio Ambiente Context (language use) Plant Science AZOXYSTROBIN “COMET” ASSAY 01 natural sciences Ciencias de la Tierra y relacionadas con el Medio Ambiente MYRIOPHYLLUM QUITENSE purl.org/becyt/ford/1 [https] 03 medical and health sciences chemistry.chemical_compound purl.org/becyt/ford/1.5 [https] Aquatic plant Glycolate oxidase activity medicine ANTIOXIDANT ENZYMES Food science Molecular Biology biology Chemistry CHLOROPHYLL Fungicide 030104 developmental biology Catalase Azoxystrobin Strobilurin biology.protein CIENCIAS NATURALES Y EXACTAS 010606 plant biology & botany |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET |
| DOI: | 10.1007/s12298-018-0603-7 |
| Popis: | Azoxystrobin is a strobilurin of growing concern in aquatic environments because it is the most sold fungicide worldwide, however, the information available about its effect on aquatic non-target organisms is scarce. The objective of the present study was to evaluate potential physiological, biochemical, and genetic effects at environmentally relevant (1–10 μg/L) and elevated (100–500 μg/L) concentrations in the aquatic macrophyte Myriophyllum quitense exposed to the commercial formulation AMISTAR ® . Following an acute 24-h exposure, there were no effects of AMISTAR ® on photosynthetic pigments at any of the concentrations evaluated. Glutathione-S-transferase activity was significantly elevated at 1 and 10 μg/L AZX. Significant decrease of catalase and guaiacol peroxidase activities in plants exposed to 500 μg/L, and to 100 and 500 μg/L, respectively, and an increase in glycolate oxidase activity at 500 μg/L was observed. DNA damage at 100 and 500 μg/L was observed. These data indicate that although environmentally relevant levels of AMISTAR ® did not result cytotoxic, this fungicide was genotoxic, affecting the physiological process of photorespiration and caused oxidative damage at high concentrations. In this sense, it is necessary to explore sub-lethal responses in non-target organisms because some effects could promote further potential long-term biological consequences in a context of repeated pulses of exposure. Fil: Garanzini, Daniela Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina Fil: Medici, Sandra Karina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fares Taie Instituto de Análisis; Argentina Fil: Moreyra, Lucía D.. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales; Argentina Fil: Menone, Mirta Lujan. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; Argentina |
| Databáze: | OpenAIRE |
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