LEAF-CUTTING ANTS Acromyrmex niger SMITH, 1858 (HYMENOPTERA; FORMICIDAE) USED AS BIOINDICATORS OF AGROTOXICS RESIDUES
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| Format: | Artículo científico |
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Universidad Nacional de Colombia
2014
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| author | LIRIANA BELIZÁRIO CANTAGALLI |
| author_facet | LIRIANA BELIZÁRIO CANTAGALLI |
| contents | LEAF-CUTTING ANTS Acromyrmex niger SMITH, 1858 (HYMENOPTERA; FORMICIDAE) USED AS BIOINDICATORS OF AGROTOXICS RESIDUES LIRIANA BELIZÁRIO CANTAGALLI DENISE ALVES LOPES ANA LÚCIA PAZ BARATEIRO STUCHI MARIA CLAUDIA COLLA RUVOLO-TAKASUSUKI Biología esterases bioindicators Acromyrmex niger Despite the condition of leaf-cutting ant pests in agroecosystems, it is undeniable the benefits they can bring in certain situations or environments. The leaf-cutting ants of the genus Acromyrmex attack mainly leaves of vegetables and fruit trees exposing not only to the agrochemicals used for their control as well as to those used for the control of other pests. Due to the bioindicator potential of environmental quality of the ants and their frequent exposure to agrochemicals such as organophosphates, neonicotinoids and growth regulators insecticide used for pest control, it is necessary to study the sublethal effects that these pesticides may cause. The electrophoresis technique was used to study the activity of esterase isozymes involved in the metabolism of xenobiotics of A. niger, combined with changes in the expression of isozymes after contamination by pesticides. A. niger showed eight regions of esterase activity, which were called EST-1, EST-2, EST-3, EST-4, EST-5, EST-6, EST-7 and EST-8 according to the electrophoretic mobility. As the specificity to α and β-naphthyl acetate substrates, the Est-7 and Est-8 may be classified as α-esterase and the others as αβ esterases. EST-5 is considered an enzyme of the type cholinesterase II and the others are of the type carboxilesterase. The electrophoretic analysis showed partial inhibition to all esterases subjected to the contact with Malathion organophosforate at the concentrations 1 x 10-3 % and 5 x 10-3 %, which may be considered as a biomarker for the presence of residues of this insecticide in the environment. The regression analysis for sublethal effects of the tested pesticides demonstrated correlation between dose and mortality only for Thiametoxam neonicotinoid pesticide. 2014 artículo científico 0120-548X https://www.redalyc.org/articulo.oa?id=319030502011 en http://www.redalyc.org/revista.oa?id=3190 Acta Biológica Colombiana application/pdf Universidad Nacional de Colombia Acta Biológica Colombiana (Colombia) Num.2 Vol.19 |
| format | Artículo científico |
| id | redalyc_319030502011 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | LEAF-CUTTING ANTS Acromyrmex niger SMITH, 1858 (HYMENOPTERA; FORMICIDAE) USED AS BIOINDICATORS OF AGROTOXICS RESIDUES LIRIANA BELIZÁRIO CANTAGALLI Biología esterases bioindicators Acromyrmex niger LEAF-CUTTING ANTS Acromyrmex niger SMITH, 1858 (HYMENOPTERA; FORMICIDAE) USED AS BIOINDICATORS OF AGROTOXICS RESIDUES LIRIANA BELIZÁRIO CANTAGALLI DENISE ALVES LOPES ANA LÚCIA PAZ BARATEIRO STUCHI MARIA CLAUDIA COLLA RUVOLO-TAKASUSUKI Biología esterases bioindicators Acromyrmex niger Despite the condition of leaf-cutting ant pests in agroecosystems, it is undeniable the benefits they can bring in certain situations or environments. The leaf-cutting ants of the genus Acromyrmex attack mainly leaves of vegetables and fruit trees exposing not only to the agrochemicals used for their control as well as to those used for the control of other pests. Due to the bioindicator potential of environmental quality of the ants and their frequent exposure to agrochemicals such as organophosphates, neonicotinoids and growth regulators insecticide used for pest control, it is necessary to study the sublethal effects that these pesticides may cause. The electrophoresis technique was used to study the activity of esterase isozymes involved in the metabolism of xenobiotics of A. niger, combined with changes in the expression of isozymes after contamination by pesticides. A. niger showed eight regions of esterase activity, which were called EST-1, EST-2, EST-3, EST-4, EST-5, EST-6, EST-7 and EST-8 according to the electrophoretic mobility. As the specificity to α and β-naphthyl acetate substrates, the Est-7 and Est-8 may be classified as α-esterase and the others as αβ esterases. EST-5 is considered an enzyme of the type cholinesterase II and the others are of the type carboxilesterase. The electrophoretic analysis showed partial inhibition to all esterases subjected to the contact with Malathion organophosforate at the concentrations 1 x 10-3 % and 5 x 10-3 %, which may be considered as a biomarker for the presence of residues of this insecticide in the environment. The regression analysis for sublethal effects of the tested pesticides demonstrated correlation between dose and mortality only for Thiametoxam neonicotinoid pesticide. 2014 artículo científico 0120-548X https://www.redalyc.org/articulo.oa?id=319030502011 en http://www.redalyc.org/revista.oa?id=3190 Acta Biológica Colombiana application/pdf Universidad Nacional de Colombia Acta Biológica Colombiana (Colombia) Num.2 Vol.19 |
| title | LEAF-CUTTING ANTS Acromyrmex niger SMITH, 1858 (HYMENOPTERA; FORMICIDAE) USED AS BIOINDICATORS OF AGROTOXICS RESIDUES |
| topic | Biología esterases bioindicators Acromyrmex niger |
| url | https://www.redalyc.org/articulo.oa?id=319030502011 |