On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide

Autores
Pajares, Adriana Mabel; Bregliani, Mabel Margarita; Massad, Walter Alfredo; Natera, Jose Eduardo; Challier, Cecilia; Boiero, María Laura; Montenegro, Mariana Angélica; Garcia, Norman Andino
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Kinetic and mechanistic aspects of the photochemical and microbiological degradation of the herbicide Maleic Hydrazide (MH) have been studied. Riboflavin (Rf, vitamin B2) was employed as a main photosensitizer whereas Humic Acid (HA) was included as a second sensitizer in order to more closely simulate natural environmental conditions. MH quenches excited singlet and triplet states of Rf, with rate constants close to the diffusion limit. The herbicide and dissolved molecular oxygen competitively quench triplet excited Rf. As a consequence the reactive oxygen species (ROS), superoxide radical anion (O2-), hydrogen peroxide (H2O2) and singlet molecular oxygen (O2(1Δg)) are produced by electron- and energy-transfer processes, respectively, as demonstrated by auxiliary experiments employing selective auxiliary quenchers and the exclusive O2(1Δg) generator Rose Bengal (RB). As a global result, the photodegradation of Rf is retarded, whereas MH is degraded by the generated ROS. The bacteria Pseudomonas aeruginosa (Ps) and Bacillus subtilis (Bs), recognized as contaminants surface-water and soil and microbial antagonists of phytopathogenic, were used in the microbiological experiments. Results of the individual incubation of both bacteria in in the presence of MH indicate a stimulation on the Ps growth, implying the biodegradation of the herbicide, whereas MH only exerted a bacteriostatic effect on Bs.
Fil: Pajares, Adriana Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Bregliani, Mabel Margarita. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Massad, Walter Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Natera, Jose Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Challier, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Boiero, María Laura. Universidad Tecnologica Nacional. Facultad Regional Villa Maria; Argentina
Fil: Montenegro, Mariana Angélica. Universidad Tecnologica Nacional. Facultad Regional Villa Maria; Argentina. Universidad Nacional de Villa María. Instituto Académico Pedagógico de Ciencias Básicas y Aplicadas; Argentina
Fil: Garcia, Norman Andino. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Materia
BIODEGRADATION
HUMIC ACID
MALEIC HYDRAZIDE
PHOTODEGRADATION
RIBOFLAVIN
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/33511
Acceder
id CONICETDig_a2dede3dd41f6dea30e46f1544ded520
oai_identifier_str oai:ri.conicet.gov.ar:11336/33511
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicidePajares, Adriana MabelBregliani, Mabel MargaritaMassad, Walter AlfredoNatera, Jose EduardoChallier, CeciliaBoiero, María LauraMontenegro, Mariana AngélicaGarcia, Norman AndinoBIODEGRADATIONHUMIC ACIDMALEIC HYDRAZIDEPHOTODEGRADATIONRIBOFLAVINhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1Kinetic and mechanistic aspects of the photochemical and microbiological degradation of the herbicide Maleic Hydrazide (MH) have been studied. Riboflavin (Rf, vitamin B2) was employed as a main photosensitizer whereas Humic Acid (HA) was included as a second sensitizer in order to more closely simulate natural environmental conditions. MH quenches excited singlet and triplet states of Rf, with rate constants close to the diffusion limit. The herbicide and dissolved molecular oxygen competitively quench triplet excited Rf. As a consequence the reactive oxygen species (ROS), superoxide radical anion (O2-), hydrogen peroxide (H2O2) and singlet molecular oxygen (O2(1Δg)) are produced by electron- and energy-transfer processes, respectively, as demonstrated by auxiliary experiments employing selective auxiliary quenchers and the exclusive O2(1Δg) generator Rose Bengal (RB). As a global result, the photodegradation of Rf is retarded, whereas MH is degraded by the generated ROS. The bacteria Pseudomonas aeruginosa (Ps) and Bacillus subtilis (Bs), recognized as contaminants surface-water and soil and microbial antagonists of phytopathogenic, were used in the microbiological experiments. Results of the individual incubation of both bacteria in in the presence of MH indicate a stimulation on the Ps growth, implying the biodegradation of the herbicide, whereas MH only exerted a bacteriostatic effect on Bs.Fil: Pajares, Adriana Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia; Argentina. Universidad Nacional de la Patagonia Austral; ArgentinaFil: Bregliani, Mabel Margarita. Universidad Nacional de la Patagonia Austral; ArgentinaFil: Massad, Walter Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Natera, Jose Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Challier, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaFil: Boiero, María Laura. Universidad Tecnologica Nacional. Facultad Regional Villa Maria; ArgentinaFil: Montenegro, Mariana Angélica. Universidad Tecnologica Nacional. Facultad Regional Villa Maria; Argentina. Universidad Nacional de Villa María. Instituto Académico Pedagógico de Ciencias Básicas y Aplicadas; ArgentinaFil: Garcia, Norman Andino. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; ArgentinaElsevier Science Sa2014-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/33511Pajares, Adriana Mabel; Bregliani, Mabel Margarita; Massad, Walter Alfredo; Natera, Jose Eduardo; Challier, Cecilia; et al.; On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide; Elsevier Science Sa; Journal of Photochemistry and Photobiology B: Biology; 135; 4-2014; 48-541011-1344CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jphotobiol.2014.04.002info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S101113441400102Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:53:28Zoai:ri.conicet.gov.ar:11336/33511instacron: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:34982025-10-22 11:53:28.806CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide
title On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide
spellingShingle On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide
Pajares, Adriana Mabel
BIODEGRADATION
HUMIC ACID
MALEIC HYDRAZIDE
PHOTODEGRADATION
RIBOFLAVIN
title_short On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide
title_full On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide
title_fullStr On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide
title_full_unstemmed On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide
title_sort On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide
dc.creator.none.fl_str_mv Pajares, Adriana Mabel
Bregliani, Mabel Margarita
Massad, Walter Alfredo
Natera, Jose Eduardo
Challier, Cecilia
Boiero, María Laura
Montenegro, Mariana Angélica
Garcia, Norman Andino
author Pajares, Adriana Mabel
author_facet Pajares, Adriana Mabel
Bregliani, Mabel Margarita
Massad, Walter Alfredo
Natera, Jose Eduardo
Challier, Cecilia
Boiero, María Laura
Montenegro, Mariana Angélica
Garcia, Norman Andino
author_role author
author2 Bregliani, Mabel Margarita
Massad, Walter Alfredo
Natera, Jose Eduardo
Challier, Cecilia
Boiero, María Laura
Montenegro, Mariana Angélica
Garcia, Norman Andino
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv BIODEGRADATION
HUMIC ACID
MALEIC HYDRAZIDE
PHOTODEGRADATION
RIBOFLAVIN
topic BIODEGRADATION
HUMIC ACID
MALEIC HYDRAZIDE
PHOTODEGRADATION
RIBOFLAVIN
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Kinetic and mechanistic aspects of the photochemical and microbiological degradation of the herbicide Maleic Hydrazide (MH) have been studied. Riboflavin (Rf, vitamin B2) was employed as a main photosensitizer whereas Humic Acid (HA) was included as a second sensitizer in order to more closely simulate natural environmental conditions. MH quenches excited singlet and triplet states of Rf, with rate constants close to the diffusion limit. The herbicide and dissolved molecular oxygen competitively quench triplet excited Rf. As a consequence the reactive oxygen species (ROS), superoxide radical anion (O2-), hydrogen peroxide (H2O2) and singlet molecular oxygen (O2(1Δg)) are produced by electron- and energy-transfer processes, respectively, as demonstrated by auxiliary experiments employing selective auxiliary quenchers and the exclusive O2(1Δg) generator Rose Bengal (RB). As a global result, the photodegradation of Rf is retarded, whereas MH is degraded by the generated ROS. The bacteria Pseudomonas aeruginosa (Ps) and Bacillus subtilis (Bs), recognized as contaminants surface-water and soil and microbial antagonists of phytopathogenic, were used in the microbiological experiments. Results of the individual incubation of both bacteria in in the presence of MH indicate a stimulation on the Ps growth, implying the biodegradation of the herbicide, whereas MH only exerted a bacteriostatic effect on Bs.
Fil: Pajares, Adriana Mabel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de la Patagonia; Argentina. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Bregliani, Mabel Margarita. Universidad Nacional de la Patagonia Austral; Argentina
Fil: Massad, Walter Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Natera, Jose Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Challier, Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
Fil: Boiero, María Laura. Universidad Tecnologica Nacional. Facultad Regional Villa Maria; Argentina
Fil: Montenegro, Mariana Angélica. Universidad Tecnologica Nacional. Facultad Regional Villa Maria; Argentina. Universidad Nacional de Villa María. Instituto Académico Pedagógico de Ciencias Básicas y Aplicadas; Argentina
Fil: Garcia, Norman Andino. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Química; Argentina
description Kinetic and mechanistic aspects of the photochemical and microbiological degradation of the herbicide Maleic Hydrazide (MH) have been studied. Riboflavin (Rf, vitamin B2) was employed as a main photosensitizer whereas Humic Acid (HA) was included as a second sensitizer in order to more closely simulate natural environmental conditions. MH quenches excited singlet and triplet states of Rf, with rate constants close to the diffusion limit. The herbicide and dissolved molecular oxygen competitively quench triplet excited Rf. As a consequence the reactive oxygen species (ROS), superoxide radical anion (O2-), hydrogen peroxide (H2O2) and singlet molecular oxygen (O2(1Δg)) are produced by electron- and energy-transfer processes, respectively, as demonstrated by auxiliary experiments employing selective auxiliary quenchers and the exclusive O2(1Δg) generator Rose Bengal (RB). As a global result, the photodegradation of Rf is retarded, whereas MH is degraded by the generated ROS. The bacteria Pseudomonas aeruginosa (Ps) and Bacillus subtilis (Bs), recognized as contaminants surface-water and soil and microbial antagonists of phytopathogenic, were used in the microbiological experiments. Results of the individual incubation of both bacteria in in the presence of MH indicate a stimulation on the Ps growth, implying the biodegradation of the herbicide, whereas MH only exerted a bacteriostatic effect on Bs.
publishDate 2014
dc.date.none.fl_str_mv 2014-04
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/11336/33511
Pajares, Adriana Mabel; Bregliani, Mabel Margarita; Massad, Walter Alfredo; Natera, Jose Eduardo; Challier, Cecilia; et al.; On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide; Elsevier Science Sa; Journal of Photochemistry and Photobiology B: Biology; 135; 4-2014; 48-54
1011-1344
CONICET Digital
CONICET
url http://hdl.handle.net/11336/33511
identifier_str_mv Pajares, Adriana Mabel; Bregliani, Mabel Margarita; Massad, Walter Alfredo; Natera, Jose Eduardo; Challier, Cecilia; et al.; On the natural fate of maleic hydrazide. Kinetic aspects of the photochemical and microbiological degradation of the herbicide; Elsevier Science Sa; Journal of Photochemistry and Photobiology B: Biology; 135; 4-2014; 48-54
1011-1344
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.jphotobiol.2014.04.002
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S101113441400102X
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
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
_version_ 1846782230323527680
score 12.982451

Publicaciones similares