Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat

Autores
Luna, Celina Mercedes; Pastorino, Gabriela Noemi; Driscoll, Simon; Groten, Karin; Bernard, Stephanie; Foyer, Christine H.
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Plants co-ordinate information derived from many diverse external and internal signals to ensure appropriate control of gene expression under optimal and stress conditions. In this work, the relationships between catalase (CAT) and H2O2 during drought in wheat (Triticum aestivum L.) are studied. Drought-induced H2O2 accumulation correlated with decreases in soil water content and CO2 assimilation. Leaf H2O2 content increased even though total CAT activity doubled under severe drought conditions. Diurnal regulation of CAT1 and CAT2 mRNA abundance was apparent in all conditions and day/night CAT1 and CAT2 expression patterns were modified by mild and severe drought. The abundance of CAT1 transcripts was regulated by circadian controls that persisted in continuous darkness, while CAT2 was modulated by light. Drought decreased abundance, and modified the pattern, of CAT1 and CAT2 mRNAs. It was concluded that the complex regulation of CAT mRNA, particularly at the level of translation, allows precise control of leaf H2O2 accumulation.
Fil: Luna, Celina Mercedes. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Rothamsted Research; Reino Unido
Fil: Pastorino, Gabriela Noemi. Rothamsted Research; Reino Unido
Fil: Driscoll, Simon. Rothamsted Research; Reino Unido
Fil: Groten, Karin. Rothamsted Research; Reino Unido
Fil: Bernard, Stephanie. Rothamsted Research; Reino Unido
Fil: Foyer, Christine H.. Rothamsted Research; Reino Unido
Materia
CATALASE
DIURNAL CYCLE
DROUGHT
HYDROGEN PEROXIDE
TRITICUM AESTIVUM L.
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:11336/115194
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/115194
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheatLuna, Celina MercedesPastorino, Gabriela NoemiDriscoll, SimonGroten, KarinBernard, StephanieFoyer, Christine H.CATALASEDIURNAL CYCLEDROUGHTHYDROGEN PEROXIDETRITICUM AESTIVUM L.https://purl.org/becyt/ford/4.5https://purl.org/becyt/ford/4Plants co-ordinate information derived from many diverse external and internal signals to ensure appropriate control of gene expression under optimal and stress conditions. In this work, the relationships between catalase (CAT) and H2O2 during drought in wheat (Triticum aestivum L.) are studied. Drought-induced H2O2 accumulation correlated with decreases in soil water content and CO2 assimilation. Leaf H2O2 content increased even though total CAT activity doubled under severe drought conditions. Diurnal regulation of CAT1 and CAT2 mRNA abundance was apparent in all conditions and day/night CAT1 and CAT2 expression patterns were modified by mild and severe drought. The abundance of CAT1 transcripts was regulated by circadian controls that persisted in continuous darkness, while CAT2 was modulated by light. Drought decreased abundance, and modified the pattern, of CAT1 and CAT2 mRNAs. It was concluded that the complex regulation of CAT mRNA, particularly at the level of translation, allows precise control of leaf H2O2 accumulation.Fil: Luna, Celina Mercedes. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Rothamsted Research; Reino UnidoFil: Pastorino, Gabriela Noemi. Rothamsted Research; Reino UnidoFil: Driscoll, Simon. Rothamsted Research; Reino UnidoFil: Groten, Karin. Rothamsted Research; Reino UnidoFil: Bernard, Stephanie. Rothamsted Research; Reino UnidoFil: Foyer, Christine H.. Rothamsted Research; Reino UnidoOxford University Press2005-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/115194Luna, Celina Mercedes; Pastorino, Gabriela Noemi; Driscoll, Simon; Groten, Karin; Bernard, Stephanie; et al.; Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat; Oxford University Press; Journal of Experimental Botany; 56; 411; 1-2005; 417-4230022-09571460-2431CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/jxb/eri039info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jxb/article/56/411/417/429881info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:29:26Zoai:ri.conicet.gov.ar:11336/115194instacron: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 10:29:27.218CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat
title Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat
spellingShingle Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat
Luna, Celina Mercedes
CATALASE
DIURNAL CYCLE
DROUGHT
HYDROGEN PEROXIDE
TRITICUM AESTIVUM L.
title_short Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat
title_full Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat
title_fullStr Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat
title_full_unstemmed Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat
title_sort Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat
dc.creator.none.fl_str_mv Luna, Celina Mercedes
Pastorino, Gabriela Noemi
Driscoll, Simon
Groten, Karin
Bernard, Stephanie
Foyer, Christine H.
author Luna, Celina Mercedes
author_facet Luna, Celina Mercedes
Pastorino, Gabriela Noemi
Driscoll, Simon
Groten, Karin
Bernard, Stephanie
Foyer, Christine H.
author_role author
author2 Pastorino, Gabriela Noemi
Driscoll, Simon
Groten, Karin
Bernard, Stephanie
Foyer, Christine H.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv CATALASE
DIURNAL CYCLE
DROUGHT
HYDROGEN PEROXIDE
TRITICUM AESTIVUM L.
topic CATALASE
DIURNAL CYCLE
DROUGHT
HYDROGEN PEROXIDE
TRITICUM AESTIVUM L.
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.5
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Plants co-ordinate information derived from many diverse external and internal signals to ensure appropriate control of gene expression under optimal and stress conditions. In this work, the relationships between catalase (CAT) and H2O2 during drought in wheat (Triticum aestivum L.) are studied. Drought-induced H2O2 accumulation correlated with decreases in soil water content and CO2 assimilation. Leaf H2O2 content increased even though total CAT activity doubled under severe drought conditions. Diurnal regulation of CAT1 and CAT2 mRNA abundance was apparent in all conditions and day/night CAT1 and CAT2 expression patterns were modified by mild and severe drought. The abundance of CAT1 transcripts was regulated by circadian controls that persisted in continuous darkness, while CAT2 was modulated by light. Drought decreased abundance, and modified the pattern, of CAT1 and CAT2 mRNAs. It was concluded that the complex regulation of CAT mRNA, particularly at the level of translation, allows precise control of leaf H2O2 accumulation.
Fil: Luna, Celina Mercedes. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Fisiología y Recursos Genéticos Vegetales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Rothamsted Research; Reino Unido
Fil: Pastorino, Gabriela Noemi. Rothamsted Research; Reino Unido
Fil: Driscoll, Simon. Rothamsted Research; Reino Unido
Fil: Groten, Karin. Rothamsted Research; Reino Unido
Fil: Bernard, Stephanie. Rothamsted Research; Reino Unido
Fil: Foyer, Christine H.. Rothamsted Research; Reino Unido
description Plants co-ordinate information derived from many diverse external and internal signals to ensure appropriate control of gene expression under optimal and stress conditions. In this work, the relationships between catalase (CAT) and H2O2 during drought in wheat (Triticum aestivum L.) are studied. Drought-induced H2O2 accumulation correlated with decreases in soil water content and CO2 assimilation. Leaf H2O2 content increased even though total CAT activity doubled under severe drought conditions. Diurnal regulation of CAT1 and CAT2 mRNA abundance was apparent in all conditions and day/night CAT1 and CAT2 expression patterns were modified by mild and severe drought. The abundance of CAT1 transcripts was regulated by circadian controls that persisted in continuous darkness, while CAT2 was modulated by light. Drought decreased abundance, and modified the pattern, of CAT1 and CAT2 mRNAs. It was concluded that the complex regulation of CAT mRNA, particularly at the level of translation, allows precise control of leaf H2O2 accumulation.
publishDate 2005
dc.date.none.fl_str_mv 2005-01
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/11336/115194
Luna, Celina Mercedes; Pastorino, Gabriela Noemi; Driscoll, Simon; Groten, Karin; Bernard, Stephanie; et al.; Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat; Oxford University Press; Journal of Experimental Botany; 56; 411; 1-2005; 417-423
0022-0957
1460-2431
CONICET Digital
CONICET
url http://hdl.handle.net/11336/115194
identifier_str_mv Luna, Celina Mercedes; Pastorino, Gabriela Noemi; Driscoll, Simon; Groten, Karin; Bernard, Stephanie; et al.; Drought controls on H2O2 accumulation, catalase (CAT) activity and CAT gene expression in wheat; Oxford University Press; Journal of Experimental Botany; 56; 411; 1-2005; 417-423
0022-0957
1460-2431
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/jxb/eri039
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/jxb/article/56/411/417/429881
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
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
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_ 1844614301003808768
score 13.070432

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