Reactive oxygen species and antioxidants in legume nodules

28 Pags.- 2 Figs. the definitive version is available at: http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291399-3054

Detalles Bibliográficos
Autores: Becana Ausejo, Manuel, Dalton, David A., Morán, José F., Iturbe-Ormaetxe, Iñaki, Matamoros Galindo, Manuel Ángel, Rubio Luna, María Carmen
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2000
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/100280
Acceso en línea:http://hdl.handle.net/10261/100280
Access Level:acceso abierto
Palabra clave:Superoxide dismutase
Reactive oxygen metabolite
Oxidation
Nodulation
Metabolite
Antioxidants
Ascorbate peroxidase
Ascorbic acid
Hemoglobin
Iron
Legume
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spelling Reactive oxygen species and antioxidants in legume nodulesBecana Ausejo, ManuelDalton, David A.Morán, José F.Iturbe-Ormaetxe, IñakiMatamoros Galindo, Manuel ÁngelRubio Luna, María CarmenSuperoxide dismutaseReactive oxygen metaboliteOxidationNodulationMetaboliteAntioxidantsAscorbate peroxidaseAscorbic acidHemoglobinIronLegume28 Pags.- 2 Figs. the definitive version is available at: http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291399-3054Reactive oxygen species are a ubiquitous danger for aerobic organisms. This risk is especially elevated in legume root nodules due to the strongly reducing conditions, the high rates of respiration, the tendency of leghemoglobin to autoxidize, the abundance of nonprotein Fe and the presence of several redox proteins that leak electrons to O(2). Consequently, nodules are particularly rich in both quantity and diversity of antioxidant defenses. These include enzymes such as superoxide dismutase (EC 1.15.1.1) and ascorbate peroxidase (EC 1.11.1.11) and metabolites such as ascorbate and thiol tripeptides. Nodule antioxidants have been the subject of intensive molecular, biochemical and functional studies that are reviewed here. The emerging theme is that antioxidants are especially critical for the protection and optimal functioning of N(2) fixation. We hypothesize that this protection occurs at least at two levels: the O(2) diffusion barrier in the nodule parenchyma (inner cortex) and the infected cells in the central zone.Work in the laboratory of M. B. was supported by grants PB98-0522, 2FD97-1101 and HB98-163 from Dirección General de Enseñanza Superior e Investigación Científica, Comisión Interministerial de Ciencia y Tecnología, and the European Union. Work in the laboratory of D. A. D. was supported by National Science Foundation grants DCB-8903254, IBN-9206453 and IBN-9507491.Peer ReviewedBlackwell Publishing2014201420002014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/100280reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1034/j.1399-3054.2000.100402.xinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1002802026-05-22T06:33:51Z
dc.title.none.fl_str_mv Reactive oxygen species and antioxidants in legume nodules
title Reactive oxygen species and antioxidants in legume nodules
spellingShingle Reactive oxygen species and antioxidants in legume nodules
Becana Ausejo, Manuel
Superoxide dismutase
Reactive oxygen metabolite
Oxidation
Nodulation
Metabolite
Antioxidants
Ascorbate peroxidase
Ascorbic acid
Hemoglobin
Iron
Legume
title_short Reactive oxygen species and antioxidants in legume nodules
title_full Reactive oxygen species and antioxidants in legume nodules
title_fullStr Reactive oxygen species and antioxidants in legume nodules
title_full_unstemmed Reactive oxygen species and antioxidants in legume nodules
title_sort Reactive oxygen species and antioxidants in legume nodules
dc.creator.none.fl_str_mv Becana Ausejo, Manuel
Dalton, David A.
Morán, José F.
Iturbe-Ormaetxe, Iñaki
Matamoros Galindo, Manuel Ángel
Rubio Luna, María Carmen
author Becana Ausejo, Manuel
author_facet Becana Ausejo, Manuel
Dalton, David A.
Morán, José F.
Iturbe-Ormaetxe, Iñaki
Matamoros Galindo, Manuel Ángel
Rubio Luna, María Carmen
author_role author
author2 Dalton, David A.
Morán, José F.
Iturbe-Ormaetxe, Iñaki
Matamoros Galindo, Manuel Ángel
Rubio Luna, María Carmen
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Superoxide dismutase
Reactive oxygen metabolite
Oxidation
Nodulation
Metabolite
Antioxidants
Ascorbate peroxidase
Ascorbic acid
Hemoglobin
Iron
Legume
topic Superoxide dismutase
Reactive oxygen metabolite
Oxidation
Nodulation
Metabolite
Antioxidants
Ascorbate peroxidase
Ascorbic acid
Hemoglobin
Iron
Legume
description 28 Pags.- 2 Figs. the definitive version is available at: http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291399-3054
publishDate 2000
dc.date.none.fl_str_mv 2000
2014
2014
2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/100280
url http://hdl.handle.net/10261/100280
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1034/j.1399-3054.2000.100402.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Blackwell Publishing
publisher.none.fl_str_mv Blackwell Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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