Resistance in cholinesterase activity after an acute and subchronic exposure to azinphos-methyl in the freshwater gastropod Biomphalaria straminea

Organophosphorous and carbamates insecticides are ones of the most popular classes of pesticides used in agriculture. Its success relies on their high acute toxicity and rapid environmental degradation. These insecticides inhibit cholinesterase and cause severe effects on aquatic non-target species,...

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Autor principal: Bianco, K.
Otros Autores: Otero, S., Balazote Oliver, A., Nahabedian, D., Kristoff, G.
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Publicado: Academic Press 2014
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024 7 |2 scopus  |a 2-s2.0-84906761384 
024 7 |2 cas  |a 1,5 bis(4 allyldimethylammoniumphenyl)pentan 3 one dibromide, 402-40-4; acetylthiocholine, 1797-69-9, 4468-05-7; azinphos methyl, 86-50-0; butyrylthiocholine, 1866-16-6, 4555-00-4; carboxylesterase, 59536-71-9, 83380-83-0, 9016-18-6, 9028-01-7; cholinesterase, 9001-08-5; iso OMPA, 513-00-8; physostigmine, 57-47-6, 64-47-1; Azinphosmethyl; Biological Markers; Carboxylic Ester Hydrolases; Cholinesterases; Insecticides; Water Pollutants, Chemical 
040 |a Scopus  |b spa  |c AR-BaUEN  |d AR-BaUEN 
030 |a EESAD 
100 1 |a Bianco, K. 
245 1 0 |a Resistance in cholinesterase activity after an acute and subchronic exposure to azinphos-methyl in the freshwater gastropod Biomphalaria straminea 
260 |b Academic Press  |c 2014 
270 1 0 |m Kristoff, G.; IQUIBICEN-CONICET, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pab. II. 4to piso, 1428 Buenos Aires, Argentina; email: gkristoff@qb.fcen.uba.ar 
506 |2 openaire  |e Política editorial 
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520 3 |a Organophosphorous and carbamates insecticides are ones of the most popular classes of pesticides used in agriculture. Its success relies on their high acute toxicity and rapid environmental degradation. These insecticides inhibit cholinesterase and cause severe effects on aquatic non-target species, particularly in invertebrates. Since the properties of cholinesterases may differ between species, it is necessary to characterize them before their use as biomarkers. Also organophosphorous and carbamates inhibit carboxylesterases and the use of both enzymes for biomonitoring is suggested. Azinphos-methyl is an organophosphorous insecticide used in several parts of the word. In Argentina, it is the most applied insecticide in fruit production in the north Patagonian region. It was detected with the highest frequency in superficial and groundwater of the region. This work aims to evaluate the sensitivity of B. straminea cholinesterases and carboxylesterases to the OP azinphos-methyl including estimations of 48h NOEC and IC50 of the pesticide and subchronic effects at environmentally relevant concentrations. These will allow us to evaluate the possibility of using cholinesterase and carboxylesterase of B. straminea as sensitive biomarkers. Previously a partial characterization of these enzymes will be performed. As in most invertebrates, acetylthiocholine was the preferred hydrolyzed substrate of B. straminea ChE, followed by propionylthiocholine and being butyrylthiocholine hydrolysis very low. Cholinesterase activity of B. straminea was significantly inhibited by the selective cholinesterases inhibitor (eserine) and by the selective inhibitor of mammalian acethylcholinesterase (BW284c51). In contrast, iso-OMPA, a specific inhibitor of butyrylcholinesterase, did not inhibit cholinesterase activity. These results suggest that cholinesterase activity in total soft tissue of B. straminea corresponds to acethylcholinesterase. Carboxylesterases activity was one order of magnitude higher than cholinesterase. A greater efficiency (Vmax/Km) was obtained using acetylthiocholine and p-nitrophenyl butyrate. Acute exposure to azinphos-methyl did not cause inhibition of cholinesterase activity until 10mgL-1 used. Carboxylesterases towards p-nitrophenyl butyrate was inhibited by azinphos-methyl being the IC502.20±0.75mgL-1 of azinphos-methyl. Subchronic exposure to environmental concentrations of azinphos-methyl (0.02 and 0.2mgL-1) produced a decrease in survival, protein content and carboxylesterases activity despite no inhibition of cholinesterase activity was observed. B. straminea cholinesterase is not a sensible biomarker. On the contrary, carboxylesterases activity was inhibited by azinphos-methyl. Carboxylesterases could be protecting cholinesterase activity and therefore, protecting the organism from neurotoxicity. This work confirms the advantages of measuring cholinesterases and carboxylesterases jointly in aquatic biomonitoring of pesticide contamination. This becomes relevant in order to find more sensitive biomarkers and new strategies to protect non-target aquatic organisms from pesticide contamination. © 2014 Elsevier Inc.  |l eng 
536 |a Detalles de la financiación: Universidad de Buenos Aires, 20020110100070 
536 |a Detalles de la financiación: Consejo Nacional de Investigaciones Científicas y Técnicas, 11220120100680, 4541-12 
536 |a Detalles de la financiación: This work was supported by grants from CONICET , Argentina ( Resolution 4541-12 and 11220120100680 CO ) and Universidad de Buenos Aires, Argentina ( 20020110100070 ). We thank Dra. M. Ostrowsky. 
593 |a Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina 
593 |a Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina y CONICET, Argentina 
593 |a IQUIBICEN-CONICET, Argentina 
690 1 0 |a BIOMARKERS 
690 1 0 |a CARBOXYLESTERASES 
690 1 0 |a CHOLINESTERASES 
690 1 0 |a ORGANOPHOSPHOROUS INSECTICIDES 
690 1 0 |a PROTEINS 
690 1 0 |a 1,5 BIS(4 ALLYLDIMETHYLAMMONIUMPHENYL)PENTAN 3 ONE DIBROMIDE 
690 1 0 |a ACETYLTHIOCHOLINE 
690 1 0 |a AZINPHOS METHYL 
690 1 0 |a BUTYRYLTHIOCHOLINE 
690 1 0 |a CARBOXYLESTERASE 
690 1 0 |a CHOLINE DERIVATIVE 
690 1 0 |a CHOLINESTERASE 
690 1 0 |a CHOLINESTERASE INHIBITOR 
690 1 0 |a ISO OMPA 
690 1 0 |a PHYSOSTIGMINE 
690 1 0 |a PROPIONYLTHIOCHOLINE 
690 1 0 |a UNCLASSIFIED DRUG 
690 1 0 |a AZINPHOS METHYL 
690 1 0 |a BIOLOGICAL MARKER 
690 1 0 |a CARBOXYLESTERASE 
690 1 0 |a CHOLINESTERASE 
690 1 0 |a INSECTICIDE 
690 1 0 |a WATER POLLUTANT 
690 1 0 |a ACETYLTHIOCHOLINE 
690 1 0 |a BIOLOGICAL MARKER 
690 1 0 |a BUTYRYLTHIOCHOLINE 
690 1 0 |a CHOLINE DERIVATIVE 
690 1 0 |a FRESH WATER 
690 1 0 |a PROPIONYLTHIOCHOLINE 
690 1 0 |a AZINPHOS METHYL 
690 1 0 |a INSECTICIDE 
690 1 0 |a AZINPHOS METHYL 
690 1 0 |a BIOMARKER 
690 1 0 |a BIOMONITORING 
690 1 0 |a CARBAMATE (ESTER) 
690 1 0 |a CONCENTRATION (COMPOSITION) 
690 1 0 |a ENZYME ACTIVITY 
690 1 0 |a GASTROPOD 
690 1 0 |a INSECTICIDE 
690 1 0 |a PROTEIN 
690 1 0 |a TOXICITY 
690 1 0 |a NONTARGET ORGANISM 
690 1 0 |a POLLUTION EXPOSURE 
690 1 0 |a ANIMAL TISSUE 
690 1 0 |a ARTICLE 
690 1 0 |a BIOASSAY 
690 1 0 |a BIOMPHALARIA STRAMINEA 
690 1 0 |a CONCENTRATION (PARAMETERS) 
690 1 0 |a CONTROLLED STUDY 
690 1 0 |a ENZYME ACTIVITY 
690 1 0 |a ENZYME INHIBITION 
690 1 0 |a ENZYME KINETICS 
690 1 0 |a EXPOSURE 
690 1 0 |a HYDROLYSIS 
690 1 0 |a IC 50 
690 1 0 |a IN VITRO STUDY 
690 1 0 |a NONHUMAN 
690 1 0 |a PROTEIN CONTENT 
690 1 0 |a SENSITIVITY ANALYSIS 
690 1 0 |a SURVIVAL 
690 1 0 |a TISSUE HOMOGENATE 
690 1 0 |a ANIMAL 
690 1 0 |a BIOMPHALARIA 
690 1 0 |a DRUG EFFECTS 
690 1 0 |a ENVIRONMENTAL EXPOSURE 
690 1 0 |a ENVIRONMENTAL MONITORING 
690 1 0 |a ENZYMOLOGY 
690 1 0 |a METABOLISM 
690 1 0 |a TOXICITY 
690 1 0 |a WATER POLLUTANT 
690 1 0 |a ARTICLE 
690 1 0 |a BIOLOGICAL MONITORING 
690 1 0 |a IC50 
690 1 0 |a NEUROTOXICITY 
690 1 0 |a PROTEIN ANALYSIS 
690 1 0 |a PROTEIN FUNCTION 
690 1 0 |a PROTEIN HYDROLYSIS 
690 1 0 |a PROTEIN METABOLISM 
690 1 0 |a PATAGONIA 
690 1 0 |a ANIMALS 
690 1 0 |a AZINPHOSMETHYL 
690 1 0 |a BIOLOGICAL MARKERS 
690 1 0 |a BIOMPHALARIA 
690 1 0 |a CARBOXYLIC ESTER HYDROLASES 
690 1 0 |a CHOLINESTERASES 
690 1 0 |a ENVIRONMENTAL EXPOSURE 
690 1 0 |a ENVIRONMENTAL MONITORING 
690 1 0 |a INSECTICIDES 
690 1 0 |a WATER POLLUTANTS, CHEMICAL 
690 1 0 |a BIOMPHALARIA STRAMINEA 
690 1 0 |a GASTROPODA 
651 4 |a ARGENTINA 
700 1 |a Otero, S. 
700 1 |a Balazote Oliver, A. 
700 1 |a Nahabedian, D. 
700 1 |a Kristoff, G. 
773 0 |d Academic Press, 2014  |g v. 109  |h pp. 85-92  |p Ecotoxicol. Environ. Saf.  |x 01476513  |w (AR-BaUEN)CENRE-4483  |t Ecotoxicology and Environmental Safety 
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