Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops
- Autores
- Lajmanovich, Rafael Carlos; Peltzer, Paola; Junges, Celina Maria; Attademo, Andres Maximiliano; Sanchez, Laura Cecilia; Basso, Agustin
- Año de publicación
- 2010
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Soybean fields provide habitats for many species of amphibians. However, the persistence and health of amphibian populations may be at risk from the increasing use of pesticides and other agricultural chemicals. We examined the activities of acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and carboxylesterases (CbEs) in 11 syntopic species of larval anurans. In vitro effects of malaoxon causing 50% BChE inhibition (IC50) were also studied. In addition, we calculated a relative risk index (RI) based on the geographic distributions of the anurans, the phenology of soybean cultivation, and basal enzymatic values related to potential pesticide detoxification. Among the 11 species, AChE activity varied from 17.5±1.6 to 68.2±4.7nmolmin-1mg-1 protein (PT). BChE activity also varied significantly, ranging from 3.3±0.4 to 7.5±0.4nmolmin-1mg-1PT. Both measures of CbE activities varied widely (CbE α-NA: 2.1±0.5-12.4±1.1nmolmin-1mg-1PT; CbE-4NPV: 21.8±1.8-102.6±7.9nmolmin-1mg-1PT). We also corroborate that lower BChE activity levels for the tadpoles were associated at minor IC50 values. The results of this study demonstrate significant variation in enzymatic levels among several tadpole species and intermediate to high RI values for 7 species. Based on these results, it appears that a conversion of native ecosystems to soybean crops may lead to increased ecological risk for anuran amphibians.
Fil: Lajmanovich, Rafael Carlos. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Peltzer, Paola. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Junges, Celina Maria. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Attademo, Andres Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Litoral; Argentina
Fil: Sanchez, Laura Cecilia. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina. Universidad Nacional del Litoral; Argentina
Fil: Basso, Agustin. Universidad Nacional del Litoral; Argentina - Materia
-
AGROECOSYSTEMS
AMPHIBIAN
B-ESTERASES
ECOLOGICAL RISK
LANDSCAPE MANAGEMENT
SOYBEAN CROPS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/97706
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/97706 |
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network_name_str |
CONICET Digital (CONICET) |
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Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean cropsLajmanovich, Rafael CarlosPeltzer, PaolaJunges, Celina MariaAttademo, Andres MaximilianoSanchez, Laura CeciliaBasso, AgustinAGROECOSYSTEMSAMPHIBIANB-ESTERASESECOLOGICAL RISKLANDSCAPE MANAGEMENTSOYBEAN CROPShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Soybean fields provide habitats for many species of amphibians. However, the persistence and health of amphibian populations may be at risk from the increasing use of pesticides and other agricultural chemicals. We examined the activities of acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and carboxylesterases (CbEs) in 11 syntopic species of larval anurans. In vitro effects of malaoxon causing 50% BChE inhibition (IC50) were also studied. In addition, we calculated a relative risk index (RI) based on the geographic distributions of the anurans, the phenology of soybean cultivation, and basal enzymatic values related to potential pesticide detoxification. Among the 11 species, AChE activity varied from 17.5±1.6 to 68.2±4.7nmolmin-1mg-1 protein (PT). BChE activity also varied significantly, ranging from 3.3±0.4 to 7.5±0.4nmolmin-1mg-1PT. Both measures of CbE activities varied widely (CbE α-NA: 2.1±0.5-12.4±1.1nmolmin-1mg-1PT; CbE-4NPV: 21.8±1.8-102.6±7.9nmolmin-1mg-1PT). We also corroborate that lower BChE activity levels for the tadpoles were associated at minor IC50 values. The results of this study demonstrate significant variation in enzymatic levels among several tadpole species and intermediate to high RI values for 7 species. Based on these results, it appears that a conversion of native ecosystems to soybean crops may lead to increased ecological risk for anuran amphibians.Fil: Lajmanovich, Rafael Carlos. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Peltzer, Paola. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Junges, Celina Maria. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Attademo, Andres Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Litoral; ArgentinaFil: Sanchez, Laura Cecilia. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina. Universidad Nacional del Litoral; ArgentinaFil: Basso, Agustin. Universidad Nacional del Litoral; ArgentinaAcademic Press Inc Elsevier Science2010-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/97706Lajmanovich, Rafael Carlos; Peltzer, Paola; Junges, Celina Maria; Attademo, Andres Maximiliano; Sanchez, Laura Cecilia; et al.; Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops; Academic Press Inc Elsevier Science; Ecotoxicology and Environmental Safety; 73; 7; 10-2010; 1517-15240147-6513CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecoenv.2010.07.047info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:33:36Zoai:ri.conicet.gov.ar:11336/97706instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:33:36.665CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops |
title |
Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops |
spellingShingle |
Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops Lajmanovich, Rafael Carlos AGROECOSYSTEMS AMPHIBIAN B-ESTERASES ECOLOGICAL RISK LANDSCAPE MANAGEMENT SOYBEAN CROPS |
title_short |
Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops |
title_full |
Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops |
title_fullStr |
Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops |
title_full_unstemmed |
Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops |
title_sort |
Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops |
dc.creator.none.fl_str_mv |
Lajmanovich, Rafael Carlos Peltzer, Paola Junges, Celina Maria Attademo, Andres Maximiliano Sanchez, Laura Cecilia Basso, Agustin |
author |
Lajmanovich, Rafael Carlos |
author_facet |
Lajmanovich, Rafael Carlos Peltzer, Paola Junges, Celina Maria Attademo, Andres Maximiliano Sanchez, Laura Cecilia Basso, Agustin |
author_role |
author |
author2 |
Peltzer, Paola Junges, Celina Maria Attademo, Andres Maximiliano Sanchez, Laura Cecilia Basso, Agustin |
author2_role |
author author author author author |
dc.subject.none.fl_str_mv |
AGROECOSYSTEMS AMPHIBIAN B-ESTERASES ECOLOGICAL RISK LANDSCAPE MANAGEMENT SOYBEAN CROPS |
topic |
AGROECOSYSTEMS AMPHIBIAN B-ESTERASES ECOLOGICAL RISK LANDSCAPE MANAGEMENT SOYBEAN CROPS |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.6 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Soybean fields provide habitats for many species of amphibians. However, the persistence and health of amphibian populations may be at risk from the increasing use of pesticides and other agricultural chemicals. We examined the activities of acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and carboxylesterases (CbEs) in 11 syntopic species of larval anurans. In vitro effects of malaoxon causing 50% BChE inhibition (IC50) were also studied. In addition, we calculated a relative risk index (RI) based on the geographic distributions of the anurans, the phenology of soybean cultivation, and basal enzymatic values related to potential pesticide detoxification. Among the 11 species, AChE activity varied from 17.5±1.6 to 68.2±4.7nmolmin-1mg-1 protein (PT). BChE activity also varied significantly, ranging from 3.3±0.4 to 7.5±0.4nmolmin-1mg-1PT. Both measures of CbE activities varied widely (CbE α-NA: 2.1±0.5-12.4±1.1nmolmin-1mg-1PT; CbE-4NPV: 21.8±1.8-102.6±7.9nmolmin-1mg-1PT). We also corroborate that lower BChE activity levels for the tadpoles were associated at minor IC50 values. The results of this study demonstrate significant variation in enzymatic levels among several tadpole species and intermediate to high RI values for 7 species. Based on these results, it appears that a conversion of native ecosystems to soybean crops may lead to increased ecological risk for anuran amphibians. Fil: Lajmanovich, Rafael Carlos. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Peltzer, Paola. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Junges, Celina Maria. Universidad Nacional del Litoral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Attademo, Andres Maximiliano. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Litoral; Argentina Fil: Sanchez, Laura Cecilia. Provincia de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Universidad Autónoma de Entre Ríos. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones Científicas y Transferencia de Tecnología a la Producción; Argentina. Universidad Nacional del Litoral; Argentina Fil: Basso, Agustin. Universidad Nacional del Litoral; Argentina |
description |
Soybean fields provide habitats for many species of amphibians. However, the persistence and health of amphibian populations may be at risk from the increasing use of pesticides and other agricultural chemicals. We examined the activities of acetylcholinesterase (AChE), butyrylcholinesterase (BChE), and carboxylesterases (CbEs) in 11 syntopic species of larval anurans. In vitro effects of malaoxon causing 50% BChE inhibition (IC50) were also studied. In addition, we calculated a relative risk index (RI) based on the geographic distributions of the anurans, the phenology of soybean cultivation, and basal enzymatic values related to potential pesticide detoxification. Among the 11 species, AChE activity varied from 17.5±1.6 to 68.2±4.7nmolmin-1mg-1 protein (PT). BChE activity also varied significantly, ranging from 3.3±0.4 to 7.5±0.4nmolmin-1mg-1PT. Both measures of CbE activities varied widely (CbE α-NA: 2.1±0.5-12.4±1.1nmolmin-1mg-1PT; CbE-4NPV: 21.8±1.8-102.6±7.9nmolmin-1mg-1PT). We also corroborate that lower BChE activity levels for the tadpoles were associated at minor IC50 values. The results of this study demonstrate significant variation in enzymatic levels among several tadpole species and intermediate to high RI values for 7 species. Based on these results, it appears that a conversion of native ecosystems to soybean crops may lead to increased ecological risk for anuran amphibians. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-10 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/97706 Lajmanovich, Rafael Carlos; Peltzer, Paola; Junges, Celina Maria; Attademo, Andres Maximiliano; Sanchez, Laura Cecilia; et al.; Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops; Academic Press Inc Elsevier Science; Ecotoxicology and Environmental Safety; 73; 7; 10-2010; 1517-1524 0147-6513 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/97706 |
identifier_str_mv |
Lajmanovich, Rafael Carlos; Peltzer, Paola; Junges, Celina Maria; Attademo, Andres Maximiliano; Sanchez, Laura Cecilia; et al.; Activity levels of B-esterases in the tadpoles of 11 species of frogs in the middle Paraná River floodplain: Implication for ecological risk assessment of soybean crops; Academic Press Inc Elsevier Science; Ecotoxicology and Environmental Safety; 73; 7; 10-2010; 1517-1524 0147-6513 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ecoenv.2010.07.047 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Academic Press Inc Elsevier Science |
publisher.none.fl_str_mv |
Academic Press Inc Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613033963290624 |
score |
13.070432 |