Toxicodinamia del herbicida Imazetapir en Scenedesmus vacuolatus : Efecto de un formulado comercial, sus componentes y la mezcla con glifosato. Transferencia en una cadena trófica

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In the last decades rhe use of herbicide from the imidazolinones group and their mixture with glyphosate has increased. These pesticides usually reach water bodies, affecting the organisms that inhabit them, such as microalgaes. Any adverse effect on them can affect organisms in higher trophic level...

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Autor principal: Fassiano, Anabella Victoria
Formato: Tesis Doctoral
Lenguaje:Español
Publicado: 2016
Materias:
SCENEDESMUS VACUOLATUS
LIMNOPERNA FORTUNEI
IMAZETAPIR
GLIFOSATO
ESTRES OXIDATIVO
SURFACTANTES
CADENA TROFICA
IMAZETHAPYR
GLYPHOSATE
OXIDATIVE STRESS
SURFACTANTS
TROPHIC CHAIN
Acceso en línea:https://hdl.handle.net/20.500.12110/tesis_n6037_Fassiano
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:tesis_n6037_Fassiano
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spelling todo:tesis_n6037_Fassiano2023-10-03T13:04:12Z Toxicodinamia del herbicida Imazetapir en Scenedesmus vacuolatus : Efecto de un formulado comercial, sus componentes y la mezcla con glifosato. Transferencia en una cadena trófica Toxicodynamics of the herbicide Imazethapyr in Scenedesmus vacuolatus: Effect of a commercial formulation, its components and the mixture with glyphosate. Transfer in a thropic chain Fassiano, Anabella Victoria SCENEDESMUS VACUOLATUS LIMNOPERNA FORTUNEI IMAZETAPIR GLIFOSATO ESTRES OXIDATIVO SURFACTANTES CADENA TROFICA SCENEDESMUS VACUOLATUS LIMNOPERNA FORTUNEI IMAZETHAPYR GLYPHOSATE OXIDATIVE STRESS SURFACTANTS TROPHIC CHAIN In the last decades rhe use of herbicide from the imidazolinones group and their mixture with glyphosate has increased. These pesticides usually reach water bodies, affecting the organisms that inhabit them, such as microalgaes. Any adverse effect on them can affect organisms in higher trophic levels and even the en tire aquatic ecosystem. The aim of this thesis is to evaluare the impact of imazethapyr, in its different presentations, on aquatic organisms, producers and prima1y consumers, such as the microalgae Scenedesmus vacuohtus (Chlorophyta) and the mussel Limnoperna fartunei (Bivalvia), respectively. Microalgae were exposed to various concentrations of an imazethapyr commercial formulation (Verosil"'), the formulation additives, imazethapyr in the acid form or as ammonium salt and an imazethapyr-glyphosate formulation (OneWay®). Morpho-physiological and oxidative stress parameters were assessed in exposed microalgae and bivalve fed with microalgae exposed to the formulations. Our results show that the toxicity of the Verosil'" formulation is mainly related to the formulation additives and the active ingredient has an enhancing effect. On the other hand, herbicide mixture has a moderare effect on the microalgae. I was proved that oxidative stress participares in the agochemicals toxicity. In mussels fed with microalgae previously exposed to the imazetapir formulation, there has a disturbance in animal physiology and oxidative stress up to 2 weeks of treatment, whereas at longer times (4 and 6 weeks) protection strategies would be activated. In the case of mussels fed with microalgae exposed to the OneWai' formularion, there was an increase in the mortality rate rom 2 weeks of treatment on. Adverse effects found evidence of the environmental hazard posed by these agrochemicals and the need for further studies of additives and mixtures of pesticides and effects on other trophic levels. Fil: Fassiano, Anabella Victoria. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2016 Tesis Doctoral PDF Español info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar https://hdl.handle.net/20.500.12110/tesis_n6037_Fassiano
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Español
orig_language_str_mv Español
topic SCENEDESMUS VACUOLATUS
LIMNOPERNA FORTUNEI
IMAZETAPIR
GLIFOSATO
ESTRES OXIDATIVO
SURFACTANTES
CADENA TROFICA
SCENEDESMUS VACUOLATUS
LIMNOPERNA FORTUNEI
IMAZETHAPYR
GLYPHOSATE
OXIDATIVE STRESS
SURFACTANTS
TROPHIC CHAIN
spellingShingle SCENEDESMUS VACUOLATUS
LIMNOPERNA FORTUNEI
IMAZETAPIR
GLIFOSATO
ESTRES OXIDATIVO
SURFACTANTES
CADENA TROFICA
SCENEDESMUS VACUOLATUS
LIMNOPERNA FORTUNEI
IMAZETHAPYR
GLYPHOSATE
OXIDATIVE STRESS
SURFACTANTS
TROPHIC CHAIN
Fassiano, Anabella Victoria
Toxicodinamia del herbicida Imazetapir en Scenedesmus vacuolatus : Efecto de un formulado comercial, sus componentes y la mezcla con glifosato. Transferencia en una cadena trófica
topic_facet SCENEDESMUS VACUOLATUS
LIMNOPERNA FORTUNEI
IMAZETAPIR
GLIFOSATO
ESTRES OXIDATIVO
SURFACTANTES
CADENA TROFICA
SCENEDESMUS VACUOLATUS
LIMNOPERNA FORTUNEI
IMAZETHAPYR
GLYPHOSATE
OXIDATIVE STRESS
SURFACTANTS
TROPHIC CHAIN
description In the last decades rhe use of herbicide from the imidazolinones group and their mixture with glyphosate has increased. These pesticides usually reach water bodies, affecting the organisms that inhabit them, such as microalgaes. Any adverse effect on them can affect organisms in higher trophic levels and even the en tire aquatic ecosystem. The aim of this thesis is to evaluare the impact of imazethapyr, in its different presentations, on aquatic organisms, producers and prima1y consumers, such as the microalgae Scenedesmus vacuohtus (Chlorophyta) and the mussel Limnoperna fartunei (Bivalvia), respectively. Microalgae were exposed to various concentrations of an imazethapyr commercial formulation (Verosil"'), the formulation additives, imazethapyr in the acid form or as ammonium salt and an imazethapyr-glyphosate formulation (OneWay®). Morpho-physiological and oxidative stress parameters were assessed in exposed microalgae and bivalve fed with microalgae exposed to the formulations. Our results show that the toxicity of the Verosil'" formulation is mainly related to the formulation additives and the active ingredient has an enhancing effect. On the other hand, herbicide mixture has a moderare effect on the microalgae. I was proved that oxidative stress participares in the agochemicals toxicity. In mussels fed with microalgae previously exposed to the imazetapir formulation, there has a disturbance in animal physiology and oxidative stress up to 2 weeks of treatment, whereas at longer times (4 and 6 weeks) protection strategies would be activated. In the case of mussels fed with microalgae exposed to the OneWai' formularion, there was an increase in the mortality rate rom 2 weeks of treatment on. Adverse effects found evidence of the environmental hazard posed by these agrochemicals and the need for further studies of additives and mixtures of pesticides and effects on other trophic levels.
format Tesis Doctoral
author Fassiano, Anabella Victoria
author_facet Fassiano, Anabella Victoria
author_sort Fassiano, Anabella Victoria
title Toxicodinamia del herbicida Imazetapir en Scenedesmus vacuolatus : Efecto de un formulado comercial, sus componentes y la mezcla con glifosato. Transferencia en una cadena trófica
title_short Toxicodinamia del herbicida Imazetapir en Scenedesmus vacuolatus : Efecto de un formulado comercial, sus componentes y la mezcla con glifosato. Transferencia en una cadena trófica
title_full Toxicodinamia del herbicida Imazetapir en Scenedesmus vacuolatus : Efecto de un formulado comercial, sus componentes y la mezcla con glifosato. Transferencia en una cadena trófica
title_fullStr Toxicodinamia del herbicida Imazetapir en Scenedesmus vacuolatus : Efecto de un formulado comercial, sus componentes y la mezcla con glifosato. Transferencia en una cadena trófica
title_full_unstemmed Toxicodinamia del herbicida Imazetapir en Scenedesmus vacuolatus : Efecto de un formulado comercial, sus componentes y la mezcla con glifosato. Transferencia en una cadena trófica
title_sort toxicodinamia del herbicida imazetapir en scenedesmus vacuolatus : efecto de un formulado comercial, sus componentes y la mezcla con glifosato. transferencia en una cadena trófica
publishDate 2016
url https://hdl.handle.net/20.500.12110/tesis_n6037_Fassiano
work_keys_str_mv AT fassianoanabellavictoria toxicodinamiadelherbicidaimazetapirenscenedesmusvacuolatusefectodeunformuladocomercialsuscomponentesylamezclaconglifosatotransferenciaenunacadenatrofica
AT fassianoanabellavictoria toxicodynamicsoftheherbicideimazethapyrinscenedesmusvacuolatuseffectofacommercialformulationitscomponentsandthemixturewithglyphosatetransferinathropicchain
_version_ 1782027162133463040

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