Effects of the organophosphate insecticide azinphos-methyl on the reproduction and cholinesterase activity of Biomphalaria glabrata

Azinphos-methyl is an organophosphate insecticide used for pest control on a number of food crops in many parts of the world. The snail Biomphalaria glabrata is a freshwater gastropod widely distributed in South America, Central America and Africa. The aim of the present work was to investigate whet...

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Autores principales:	Kristoff, Gisela, Verrengia Guerrero, Noemí Rosario, Cochón, Adriana Cristina
Publicado:	2011
Materias:	Azinphos-methyl Cholinesterase Freshwater snail Reproduction Azinphosmethyl Biomphalaria glabrata Central America Cholinesterase activity Food crops Freshwater snails Low concentrations Organophosphate insecticides Reproductive performance South America Animals Biomarkers Insect control Insecticides azinphos methyl biological marker cholinesterase insecticide organophosphate insecticide biomarker concentration (composition) egg production enzyme activity freshwater environment hatching inhibition organophosphate pigment reproductive productivity snail animal experiment animal tissue article Biomphalaria case report concentration (parameters) crop egg enzyme inhibition food gastropod hand human nonhuman pest control progeny reproduction sexual behavior survival Cholinesterase Inhibitors Cholinesterases Female Basommatophora Gastropoda
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00456535_v84_n5_p585_Kristoff http://hdl.handle.net/20.500.12110/paper_00456535_v84_n5_p585_Kristoff
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00456535_v84_n5_p585_Kristoff
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spelling	paper:paper_00456535_v84_n5_p585_Kristoff2023-06-08T15:05:19Z Effects of the organophosphate insecticide azinphos-methyl on the reproduction and cholinesterase activity of Biomphalaria glabrata Kristoff, Gisela Verrengia Guerrero, Noemí Rosario Cochón, Adriana Cristina Azinphos-methyl Cholinesterase Freshwater snail Reproduction Azinphosmethyl Biomphalaria glabrata Central America Cholinesterase Cholinesterase activity Food crops Freshwater snails Low concentrations Organophosphate insecticides Reproduction Reproductive performance South America Animals Biomarkers Insect control Insecticides azinphos methyl biological marker cholinesterase insecticide organophosphate insecticide azinphos methyl biomarker concentration (composition) egg production enzyme activity freshwater environment hatching inhibition insecticide organophosphate pigment reproductive productivity snail animal experiment animal tissue article Biomphalaria Biomphalaria glabrata case report concentration (parameters) crop egg enzyme activity enzyme inhibition food gastropod hand hatching human nonhuman pest control progeny reproduction sexual behavior snail survival Animals Azinphosmethyl Biomphalaria Cholinesterase Inhibitors Cholinesterases Female Insecticides Reproduction Basommatophora Biomphalaria glabrata Gastropoda Azinphos-methyl is an organophosphate insecticide used for pest control on a number of food crops in many parts of the world. The snail Biomphalaria glabrata is a freshwater gastropod widely distributed in South America, Central America and Africa. The aim of the present work was to investigate whether azinphos-methyl causes alterations in the reproduction of B. glabrata. To this end, gastropod pigmented specimens were exposed to various concentrations of the insecticide (0.021, 0.5, 2.5, and 5mgL-1) for either 2 or 14d. Along 14d, several reproduction parameters and cholinesterase (ChE) activity were evaluated. In each group, the number of egg masses, the number of eggs per mass, the number of hatchings, the time to hatching, and the survival of the offspring after one month of treatment was evaluated. The results showed that, depending on the concentration and time of exposure, azinphos-methyl induced alterations in the reproduction of B. glabrata. These alterations were mainly represented by a decrease in the number of egg masses, and, in some cases, by a lower number or even the total absence of hatchings. Thus, the gastropods exposed to 2.5 and 5mgL-1 of azinphos-methyl for 14d showed ChE inhibitions higher than 35% along time and completely lost their ability to reproduce. On the other hand, exposure to high acute concentrations or exposure to low concentrations for 14d resulted in ChE inhibition equal to or lower than 35% between 7 and 14d of treatment and similar alterations in reproduction. These were represented by a decrease in the number of egg masses. At low pestice levels, the number of egg masses and the number of offspring resulted to be more sensitive biomarkers than ChE inhibition. It is concluded that the insecticide azinphos-methyl can cause a decline in the reproductive performance of B. glabrata. © 2011 Elsevier Ltd. Fil:Kristoff, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Verrengia Guerrero, N.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cochón, A.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00456535_v84_n5_p585_Kristoff http://hdl.handle.net/20.500.12110/paper_00456535_v84_n5_p585_Kristoff
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Azinphos-methyl Cholinesterase Freshwater snail Reproduction Azinphosmethyl Biomphalaria glabrata Central America Cholinesterase Cholinesterase activity Food crops Freshwater snails Low concentrations Organophosphate insecticides Reproduction Reproductive performance South America Animals Biomarkers Insect control Insecticides azinphos methyl biological marker cholinesterase insecticide organophosphate insecticide azinphos methyl biomarker concentration (composition) egg production enzyme activity freshwater environment hatching inhibition insecticide organophosphate pigment reproductive productivity snail animal experiment animal tissue article Biomphalaria Biomphalaria glabrata case report concentration (parameters) crop egg enzyme activity enzyme inhibition food gastropod hand hatching human nonhuman pest control progeny reproduction sexual behavior snail survival Animals Azinphosmethyl Biomphalaria Cholinesterase Inhibitors Cholinesterases Female Insecticides Reproduction Basommatophora Biomphalaria glabrata Gastropoda
spellingShingle	Azinphos-methyl Cholinesterase Freshwater snail Reproduction Azinphosmethyl Biomphalaria glabrata Central America Cholinesterase Cholinesterase activity Food crops Freshwater snails Low concentrations Organophosphate insecticides Reproduction Reproductive performance South America Animals Biomarkers Insect control Insecticides azinphos methyl biological marker cholinesterase insecticide organophosphate insecticide azinphos methyl biomarker concentration (composition) egg production enzyme activity freshwater environment hatching inhibition insecticide organophosphate pigment reproductive productivity snail animal experiment animal tissue article Biomphalaria Biomphalaria glabrata case report concentration (parameters) crop egg enzyme activity enzyme inhibition food gastropod hand hatching human nonhuman pest control progeny reproduction sexual behavior snail survival Animals Azinphosmethyl Biomphalaria Cholinesterase Inhibitors Cholinesterases Female Insecticides Reproduction Basommatophora Biomphalaria glabrata Gastropoda Kristoff, Gisela Verrengia Guerrero, Noemí Rosario Cochón, Adriana Cristina Effects of the organophosphate insecticide azinphos-methyl on the reproduction and cholinesterase activity of Biomphalaria glabrata
topic_facet	Azinphos-methyl Cholinesterase Freshwater snail Reproduction Azinphosmethyl Biomphalaria glabrata Central America Cholinesterase Cholinesterase activity Food crops Freshwater snails Low concentrations Organophosphate insecticides Reproduction Reproductive performance South America Animals Biomarkers Insect control Insecticides azinphos methyl biological marker cholinesterase insecticide organophosphate insecticide azinphos methyl biomarker concentration (composition) egg production enzyme activity freshwater environment hatching inhibition insecticide organophosphate pigment reproductive productivity snail animal experiment animal tissue article Biomphalaria Biomphalaria glabrata case report concentration (parameters) crop egg enzyme activity enzyme inhibition food gastropod hand hatching human nonhuman pest control progeny reproduction sexual behavior snail survival Animals Azinphosmethyl Biomphalaria Cholinesterase Inhibitors Cholinesterases Female Insecticides Reproduction Basommatophora Biomphalaria glabrata Gastropoda
description	Azinphos-methyl is an organophosphate insecticide used for pest control on a number of food crops in many parts of the world. The snail Biomphalaria glabrata is a freshwater gastropod widely distributed in South America, Central America and Africa. The aim of the present work was to investigate whether azinphos-methyl causes alterations in the reproduction of B. glabrata. To this end, gastropod pigmented specimens were exposed to various concentrations of the insecticide (0.021, 0.5, 2.5, and 5mgL-1) for either 2 or 14d. Along 14d, several reproduction parameters and cholinesterase (ChE) activity were evaluated. In each group, the number of egg masses, the number of eggs per mass, the number of hatchings, the time to hatching, and the survival of the offspring after one month of treatment was evaluated. The results showed that, depending on the concentration and time of exposure, azinphos-methyl induced alterations in the reproduction of B. glabrata. These alterations were mainly represented by a decrease in the number of egg masses, and, in some cases, by a lower number or even the total absence of hatchings. Thus, the gastropods exposed to 2.5 and 5mgL-1 of azinphos-methyl for 14d showed ChE inhibitions higher than 35% along time and completely lost their ability to reproduce. On the other hand, exposure to high acute concentrations or exposure to low concentrations for 14d resulted in ChE inhibition equal to or lower than 35% between 7 and 14d of treatment and similar alterations in reproduction. These were represented by a decrease in the number of egg masses. At low pestice levels, the number of egg masses and the number of offspring resulted to be more sensitive biomarkers than ChE inhibition. It is concluded that the insecticide azinphos-methyl can cause a decline in the reproductive performance of B. glabrata. © 2011 Elsevier Ltd.
author	Kristoff, Gisela Verrengia Guerrero, Noemí Rosario Cochón, Adriana Cristina
author_facet	Kristoff, Gisela Verrengia Guerrero, Noemí Rosario Cochón, Adriana Cristina
author_sort	Kristoff, Gisela
title	Effects of the organophosphate insecticide azinphos-methyl on the reproduction and cholinesterase activity of Biomphalaria glabrata
title_short	Effects of the organophosphate insecticide azinphos-methyl on the reproduction and cholinesterase activity of Biomphalaria glabrata
title_full	Effects of the organophosphate insecticide azinphos-methyl on the reproduction and cholinesterase activity of Biomphalaria glabrata
title_fullStr	Effects of the organophosphate insecticide azinphos-methyl on the reproduction and cholinesterase activity of Biomphalaria glabrata
title_full_unstemmed	Effects of the organophosphate insecticide azinphos-methyl on the reproduction and cholinesterase activity of Biomphalaria glabrata
title_sort	effects of the organophosphate insecticide azinphos-methyl on the reproduction and cholinesterase activity of biomphalaria glabrata
publishDate	2011
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00456535_v84_n5_p585_Kristoff http://hdl.handle.net/20.500.12110/paper_00456535_v84_n5_p585_Kristoff
work_keys_str_mv	AT kristoffgisela effectsoftheorganophosphateinsecticideazinphosmethylonthereproductionandcholinesteraseactivityofbiomphalariaglabrata AT verrengiaguerreronoemirosario effectsoftheorganophosphateinsecticideazinphosmethylonthereproductionandcholinesteraseactivityofbiomphalariaglabrata AT cochonadrianacristina effectsoftheorganophosphateinsecticideazinphosmethylonthereproductionandcholinesteraseactivityofbiomphalariaglabrata
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Effects of the organophosphate insecticide azinphos-methyl on the reproduction and cholinesterase activity of Biomphalaria glabrata

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