Different effects of subchronic exposure to low concentrations of the organophosphate insecticide chlorpyrifos in a freshwater gastropod
Chlorpyrifos is an organophosphate insecticide used for pest control on a number of food crops in many parts of the world. In recent years, there has been an important decrease in the number of organisms of Planorbarius corneus. Since the presence of pesticides in the water can be one of the reasons...
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todo:paper_01476513_v90_n_p82_Rivadeneira2023-10-03T15:00:48Z Different effects of subchronic exposure to low concentrations of the organophosphate insecticide chlorpyrifos in a freshwater gastropod Rivadeneira, P.R. Agrelo, M. Otero, S. Kristoff, G. Carboxylesterases Chlorpyrifos Cholinesterases Glutathione S-transferase Planorbarius corneus Reproduction carboxylesterase chlorpyrifos cholinesterase fresh water glutathione transferase biomarker chlorpyrifos concentration (composition) gastropod hatching inhibition insecticide organophosphate pesticide survival animal tissue article chronic toxicity concentration response controlled study egg size embryo environmental exposure enzyme activity enzyme inhibition gastropod gonad hatching nonhuman Planorbarius corneus progeny reproductive toxicity soft tissue survival rate toxicity testing water pollution indicator Animals Carboxylic Ester Hydrolases Chlorpyrifos Enzyme Activation Enzymes Fresh Water Gastropoda Gonads Oviposition Water Pollutants, Chemical Chlorpyrifos is an organophosphate insecticide used for pest control on a number of food crops in many parts of the world. In recent years, there has been an important decrease in the number of organisms of Planorbarius corneus. Since the presence of pesticides in the water can be one of the reasons for this decrease, it is very important to study the effect of subchronic exposure to environmental concentrations of pesticides on these organisms. The aim of the present work was to investigate different effects of the subchronic exposure to low concentrations of the organophosphate chlorpyrifos in P. corneus and the possibility to use these as biomarkers. To this end, we have exposed the organisms to 0.4 and 5μgL-1 of chlorpyrifos for 14 days and recorded the number of egg masses, the number of eggs per mass, the number of eggs without embryo, the time for hatching, and the % of hatching and survival. We have also determined the activities of cholinesterases, carboxylesterases and glutathione S-transferase in whole organism soft tissue and in the gonads. A 14 days exposure to 0.4μgL-1 caused an increase in the number of egg masses without eggs and a decrease in carboxylesterases measured with p-nitrophenyl butyrate. However the exposure to 5μgL-1 also caused an increase in the time for hatching, a decrease in the % of hatching and survival and also inhibition of cholinesterases and carboxylesterases with p-nitrophenyl acetate and butyrate. In contrast, the glutathione S-transferase has not been modified with the tested concentrations. We concluded that when P. corneus exposed to chlorpyrifos for 14 days, the CES determined with p-nitrophenyl butyrate proved to be the most sensitive biomarker. However, exposure to environmental concentrations showed a decrease in the reproduction ability which could cause a decrease in the number of organisms of this species. © 2012 Elsevier Inc. Fil:Agrelo, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Kristoff, G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01476513_v90_n_p82_Rivadeneira |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Carboxylesterases Chlorpyrifos Cholinesterases Glutathione S-transferase Planorbarius corneus Reproduction carboxylesterase chlorpyrifos cholinesterase fresh water glutathione transferase biomarker chlorpyrifos concentration (composition) gastropod hatching inhibition insecticide organophosphate pesticide survival animal tissue article chronic toxicity concentration response controlled study egg size embryo environmental exposure enzyme activity enzyme inhibition gastropod gonad hatching nonhuman Planorbarius corneus progeny reproductive toxicity soft tissue survival rate toxicity testing water pollution indicator Animals Carboxylic Ester Hydrolases Chlorpyrifos Enzyme Activation Enzymes Fresh Water Gastropoda Gonads Oviposition Water Pollutants, Chemical |
| spellingShingle |
Carboxylesterases Chlorpyrifos Cholinesterases Glutathione S-transferase Planorbarius corneus Reproduction carboxylesterase chlorpyrifos cholinesterase fresh water glutathione transferase biomarker chlorpyrifos concentration (composition) gastropod hatching inhibition insecticide organophosphate pesticide survival animal tissue article chronic toxicity concentration response controlled study egg size embryo environmental exposure enzyme activity enzyme inhibition gastropod gonad hatching nonhuman Planorbarius corneus progeny reproductive toxicity soft tissue survival rate toxicity testing water pollution indicator Animals Carboxylic Ester Hydrolases Chlorpyrifos Enzyme Activation Enzymes Fresh Water Gastropoda Gonads Oviposition Water Pollutants, Chemical Rivadeneira, P.R. Agrelo, M. Otero, S. Kristoff, G. Different effects of subchronic exposure to low concentrations of the organophosphate insecticide chlorpyrifos in a freshwater gastropod |
| topic_facet |
Carboxylesterases Chlorpyrifos Cholinesterases Glutathione S-transferase Planorbarius corneus Reproduction carboxylesterase chlorpyrifos cholinesterase fresh water glutathione transferase biomarker chlorpyrifos concentration (composition) gastropod hatching inhibition insecticide organophosphate pesticide survival animal tissue article chronic toxicity concentration response controlled study egg size embryo environmental exposure enzyme activity enzyme inhibition gastropod gonad hatching nonhuman Planorbarius corneus progeny reproductive toxicity soft tissue survival rate toxicity testing water pollution indicator Animals Carboxylic Ester Hydrolases Chlorpyrifos Enzyme Activation Enzymes Fresh Water Gastropoda Gonads Oviposition Water Pollutants, Chemical |
| description |
Chlorpyrifos is an organophosphate insecticide used for pest control on a number of food crops in many parts of the world. In recent years, there has been an important decrease in the number of organisms of Planorbarius corneus. Since the presence of pesticides in the water can be one of the reasons for this decrease, it is very important to study the effect of subchronic exposure to environmental concentrations of pesticides on these organisms. The aim of the present work was to investigate different effects of the subchronic exposure to low concentrations of the organophosphate chlorpyrifos in P. corneus and the possibility to use these as biomarkers. To this end, we have exposed the organisms to 0.4 and 5μgL-1 of chlorpyrifos for 14 days and recorded the number of egg masses, the number of eggs per mass, the number of eggs without embryo, the time for hatching, and the % of hatching and survival. We have also determined the activities of cholinesterases, carboxylesterases and glutathione S-transferase in whole organism soft tissue and in the gonads. A 14 days exposure to 0.4μgL-1 caused an increase in the number of egg masses without eggs and a decrease in carboxylesterases measured with p-nitrophenyl butyrate. However the exposure to 5μgL-1 also caused an increase in the time for hatching, a decrease in the % of hatching and survival and also inhibition of cholinesterases and carboxylesterases with p-nitrophenyl acetate and butyrate. In contrast, the glutathione S-transferase has not been modified with the tested concentrations. We concluded that when P. corneus exposed to chlorpyrifos for 14 days, the CES determined with p-nitrophenyl butyrate proved to be the most sensitive biomarker. However, exposure to environmental concentrations showed a decrease in the reproduction ability which could cause a decrease in the number of organisms of this species. © 2012 Elsevier Inc. |
| format |
JOUR |
| author |
Rivadeneira, P.R. Agrelo, M. Otero, S. Kristoff, G. |
| author_facet |
Rivadeneira, P.R. Agrelo, M. Otero, S. Kristoff, G. |
| author_sort |
Rivadeneira, P.R. |
| title |
Different effects of subchronic exposure to low concentrations of the organophosphate insecticide chlorpyrifos in a freshwater gastropod |
| title_short |
Different effects of subchronic exposure to low concentrations of the organophosphate insecticide chlorpyrifos in a freshwater gastropod |
| title_full |
Different effects of subchronic exposure to low concentrations of the organophosphate insecticide chlorpyrifos in a freshwater gastropod |
| title_fullStr |
Different effects of subchronic exposure to low concentrations of the organophosphate insecticide chlorpyrifos in a freshwater gastropod |
| title_full_unstemmed |
Different effects of subchronic exposure to low concentrations of the organophosphate insecticide chlorpyrifos in a freshwater gastropod |
| title_sort |
different effects of subchronic exposure to low concentrations of the organophosphate insecticide chlorpyrifos in a freshwater gastropod |
| url |
http://hdl.handle.net/20.500.12110/paper_01476513_v90_n_p82_Rivadeneira |
| work_keys_str_mv |
AT rivadeneirapr differenteffectsofsubchronicexposuretolowconcentrationsoftheorganophosphateinsecticidechlorpyrifosinafreshwatergastropod AT agrelom differenteffectsofsubchronicexposuretolowconcentrationsoftheorganophosphateinsecticidechlorpyrifosinafreshwatergastropod AT oteros differenteffectsofsubchronicexposuretolowconcentrationsoftheorganophosphateinsecticidechlorpyrifosinafreshwatergastropod AT kristoffg differenteffectsofsubchronicexposuretolowconcentrationsoftheorganophosphateinsecticidechlorpyrifosinafreshwatergastropod |
| _version_ |
1807321601064042496 |