Redox regulation of autophagy in Arabidopsis: The different ROS effects

Autores
Robert, German; Enet, Alejandro; Saavedra Borelli, Laura Lucia; Lascano, Hernan Ramiro
Año de publicación
2025
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Autophagy plays a key role in the responses to different stress condition in plants. Reactive oxygen species (ROS) are common modulators of stress responses, having both toxic and signaling functions. In this context, the relationship between ROS and autophagy regulation remains unclear, and in some aspects, contradictory. In this study, we employed pharmacological and genetic approaches to investigate the effects of different ROS on the cytoplastic redox state and autophagic flux in Arabidopsis thaliana. Our results demonstrated that oxidative treatments with H 2 O 2 and MV, which drastically increased the oxidized state of the cytoplasm, reduced the autophagic flux. Conversely, singlet oxygen, which did not have significant effects on the cytoplasmic redox state, increased the autophagic flux. Additionally, our findings indicated that after H 2 O 2 and high light treatments and during the recovery period, the cytoplasm returned to its reduced state, while autophagy was markedly induced. In summary, our study unveils the differential effects of ROS on the autophagic flux, establishing a correlation with the redox state of the cytoplasm. Moreover, it emphasizes the dynamic nature of autophagy in response to oxidative stress and the subsequent recovery period.
Instituto de Fisiología y Recursos Genéticos Vegetales
Fil: Robert, German. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil:Robert, German. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina
Fil: Robert, German. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentina
Fil: Enet, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina
Fil: Enet, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Saavedra Borelli, Laura Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina
Fil: Saavedra Borelli, Laura Lucia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Lascano, Hernan Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina
Fil: Lascano, Hernan Ramiro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Lascano, Hernan Ramiro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentina
Fuente
Plant Physiology and Biochemistry 223 : 109800 (June 2025)
Materia
Stress
Reactive Oxygen Species
Hydrogen Peroxide
Estres
Especies de Oxígeno Reactivo
Peróxido de Hidrógeno
Arabidopsis thaliana
Autophagy
Singlet Oxygen
Superoxide Radical
Redox State
Nivel de accesibilidad
acceso restringido
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/21950
Acceder
id INTADig_ad4ed99061c65d98f64d3a1d63d89655
oai_identifier_str oai:localhost:20.500.12123/21950
network_acronym_str INTADig
repository_id_str l
network_name_str INTA Digital (INTA)
spelling Redox regulation of autophagy in Arabidopsis: The different ROS effectsRobert, GermanEnet, AlejandroSaavedra Borelli, Laura LuciaLascano, Hernan RamiroStressReactive Oxygen SpeciesHydrogen PeroxideEstresEspecies de Oxígeno ReactivoPeróxido de HidrógenoArabidopsis thalianaAutophagySinglet OxygenSuperoxide RadicalRedox StateAutophagy plays a key role in the responses to different stress condition in plants. Reactive oxygen species (ROS) are common modulators of stress responses, having both toxic and signaling functions. In this context, the relationship between ROS and autophagy regulation remains unclear, and in some aspects, contradictory. In this study, we employed pharmacological and genetic approaches to investigate the effects of different ROS on the cytoplastic redox state and autophagic flux in Arabidopsis thaliana. Our results demonstrated that oxidative treatments with H 2 O 2 and MV, which drastically increased the oxidized state of the cytoplasm, reduced the autophagic flux. Conversely, singlet oxygen, which did not have significant effects on the cytoplasmic redox state, increased the autophagic flux. Additionally, our findings indicated that after H 2 O 2 and high light treatments and during the recovery period, the cytoplasm returned to its reduced state, while autophagy was markedly induced. In summary, our study unveils the differential effects of ROS on the autophagic flux, establishing a correlation with the redox state of the cytoplasm. Moreover, it emphasizes the dynamic nature of autophagy in response to oxidative stress and the subsequent recovery period.Instituto de Fisiología y Recursos Genéticos VegetalesFil: Robert, German. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaFil:Robert, German. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); ArgentinaFil: Robert, German. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; ArgentinaFil: Enet, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); ArgentinaFil: Enet, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaFil: Saavedra Borelli, Laura Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); ArgentinaFil: Saavedra Borelli, Laura Lucia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaFil: Lascano, Hernan Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); ArgentinaFil: Lascano, Hernan Ramiro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; ArgentinaFil: Lascano, Hernan Ramiro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; ArgentinaElsevier2025-04-08T12:37:40Z2025-04-08T12:37:40Z2025-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/21950https://www.sciencedirect.com/science/article/abs/pii/S09819428250032860981-94281873-2690https://doi.org/10.1016/j.plaphy.2025.109800Plant Physiology and Biochemistry 223 : 109800 (June 2025)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/2019-PD-E6-I116-001, Identificación y análisis funcional de genes o redes génicas de interés biotecnológico con fin agropecuario, forestal, agroalimentario y/o agroindustrialinfo:eu-repograntAgreement/INTA/2023-PD-L03-I084, Estreses bióticos y abióticos en plantas. Estudios fisiológicos y patológicos para el diseño de estrategias de mejoramiento y manejoinfo:eu-repo/semantics/restrictedAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-09-29T13:47:14Zoai:localhost:20.500.12123/21950instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:47:14.584INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Redox regulation of autophagy in Arabidopsis: The different ROS effects
title Redox regulation of autophagy in Arabidopsis: The different ROS effects
spellingShingle Redox regulation of autophagy in Arabidopsis: The different ROS effects
Robert, German
Stress
Reactive Oxygen Species
Hydrogen Peroxide
Estres
Especies de Oxígeno Reactivo
Peróxido de Hidrógeno
Arabidopsis thaliana
Autophagy
Singlet Oxygen
Superoxide Radical
Redox State
title_short Redox regulation of autophagy in Arabidopsis: The different ROS effects
title_full Redox regulation of autophagy in Arabidopsis: The different ROS effects
title_fullStr Redox regulation of autophagy in Arabidopsis: The different ROS effects
title_full_unstemmed Redox regulation of autophagy in Arabidopsis: The different ROS effects
title_sort Redox regulation of autophagy in Arabidopsis: The different ROS effects
dc.creator.none.fl_str_mv Robert, German
Enet, Alejandro
Saavedra Borelli, Laura Lucia
Lascano, Hernan Ramiro
author Robert, German
author_facet Robert, German
Enet, Alejandro
Saavedra Borelli, Laura Lucia
Lascano, Hernan Ramiro
author_role author
author2 Enet, Alejandro
Saavedra Borelli, Laura Lucia
Lascano, Hernan Ramiro
author2_role author
author
author
dc.subject.none.fl_str_mv Stress
Reactive Oxygen Species
Hydrogen Peroxide
Estres
Especies de Oxígeno Reactivo
Peróxido de Hidrógeno
Arabidopsis thaliana
Autophagy
Singlet Oxygen
Superoxide Radical
Redox State
topic Stress
Reactive Oxygen Species
Hydrogen Peroxide
Estres
Especies de Oxígeno Reactivo
Peróxido de Hidrógeno
Arabidopsis thaliana
Autophagy
Singlet Oxygen
Superoxide Radical
Redox State
dc.description.none.fl_txt_mv Autophagy plays a key role in the responses to different stress condition in plants. Reactive oxygen species (ROS) are common modulators of stress responses, having both toxic and signaling functions. In this context, the relationship between ROS and autophagy regulation remains unclear, and in some aspects, contradictory. In this study, we employed pharmacological and genetic approaches to investigate the effects of different ROS on the cytoplastic redox state and autophagic flux in Arabidopsis thaliana. Our results demonstrated that oxidative treatments with H 2 O 2 and MV, which drastically increased the oxidized state of the cytoplasm, reduced the autophagic flux. Conversely, singlet oxygen, which did not have significant effects on the cytoplasmic redox state, increased the autophagic flux. Additionally, our findings indicated that after H 2 O 2 and high light treatments and during the recovery period, the cytoplasm returned to its reduced state, while autophagy was markedly induced. In summary, our study unveils the differential effects of ROS on the autophagic flux, establishing a correlation with the redox state of the cytoplasm. Moreover, it emphasizes the dynamic nature of autophagy in response to oxidative stress and the subsequent recovery period.
Instituto de Fisiología y Recursos Genéticos Vegetales
Fil: Robert, German. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil:Robert, German. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina
Fil: Robert, German. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentina
Fil: Enet, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina
Fil: Enet, Alejandro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Saavedra Borelli, Laura Lucia. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina
Fil: Saavedra Borelli, Laura Lucia. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Lascano, Hernan Ramiro. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Estudios Agropecuarios (UDEA); Argentina
Fil: Lascano, Hernan Ramiro. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina
Fil: Lascano, Hernan Ramiro. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Cátedra de Fisiología Vegetal; Argentina
description Autophagy plays a key role in the responses to different stress condition in plants. Reactive oxygen species (ROS) are common modulators of stress responses, having both toxic and signaling functions. In this context, the relationship between ROS and autophagy regulation remains unclear, and in some aspects, contradictory. In this study, we employed pharmacological and genetic approaches to investigate the effects of different ROS on the cytoplastic redox state and autophagic flux in Arabidopsis thaliana. Our results demonstrated that oxidative treatments with H 2 O 2 and MV, which drastically increased the oxidized state of the cytoplasm, reduced the autophagic flux. Conversely, singlet oxygen, which did not have significant effects on the cytoplasmic redox state, increased the autophagic flux. Additionally, our findings indicated that after H 2 O 2 and high light treatments and during the recovery period, the cytoplasm returned to its reduced state, while autophagy was markedly induced. In summary, our study unveils the differential effects of ROS on the autophagic flux, establishing a correlation with the redox state of the cytoplasm. Moreover, it emphasizes the dynamic nature of autophagy in response to oxidative stress and the subsequent recovery period.
publishDate 2025
dc.date.none.fl_str_mv 2025-04-08T12:37:40Z
2025-04-08T12:37:40Z
2025-06
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/20.500.12123/21950
https://www.sciencedirect.com/science/article/abs/pii/S0981942825003286
0981-9428
1873-2690
https://doi.org/10.1016/j.plaphy.2025.109800
url http://hdl.handle.net/20.500.12123/21950
https://www.sciencedirect.com/science/article/abs/pii/S0981942825003286
https://doi.org/10.1016/j.plaphy.2025.109800
identifier_str_mv 0981-9428
1873-2690
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repograntAgreement/INTA/2019-PD-E6-I116-001, Identificación y análisis funcional de genes o redes génicas de interés biotecnológico con fin agropecuario, forestal, agroalimentario y/o agroindustrial
info:eu-repograntAgreement/INTA/2023-PD-L03-I084, Estreses bióticos y abióticos en plantas. Estudios fisiológicos y patológicos para el diseño de estrategias de mejoramiento y manejo
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv restrictedAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Plant Physiology and Biochemistry 223 : 109800 (June 2025)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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