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dc.contributor.author
Garnica, Maria
dc.contributor.author
Bacaicoa, Eva
dc.contributor.author
Mora, Maria Veronica
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dc.contributor.author
San Francisco, Sara
dc.contributor.author
Baigorri, Roberto
dc.contributor.author
Zamarreño, Angel Mari
dc.contributor.author
Garcia Mina, Jose María
dc.date.available
2022-08-05T12:21:33Z
dc.date.issued
2018-06
dc.identifier.citation
Garnica, Maria; Bacaicoa, Eva; Mora, Maria Veronica; San Francisco, Sara; Baigorri, Roberto; et al.; Shoot iron status and auxin are involved in iron deficiency-induced phytosiderophores release in wheat; BioMed Central; BMC Plant Biology; 18; 1; 6-2018; 1-14
dc.identifier.issn
1471-2229
dc.identifier.uri
http://hdl.handle.net/11336/164338
dc.description.abstract
Background: The release of phytosiderephores (PS) to the rhizosphere is the main root response to iron (Fe) deficiency in graminaceous plants. We have investigated the role of the Fe status in the shoot as well as of the signaling pathways controlled by three relevant phytoregulators - indolacetic acid (IAA), ethylene and nitric oxide (NO) - in the regulation of this root response in Fe-starved wheat plants. To this end, the PS accumulation in the nutrient solution and the root expression of the genes encoding the nicotianamine aminotransferase (TaNAAT) and ferritin (TaFER) have been evaluated in plants subjected to different treatments. Results: The application of Fe to leaves of Fe-deficient plants prevented the increase in both PS root release and TaNAAT gene expression thus showing the relevant role of the shoot to root communication in the regulation of PS root release and some steps of PS biosynthesis. Experiments with specific hormone inhibitors showed that while ethylene and NO did not positively regulate Fe-deficiency induced PS root release, auxin plays an essential role in the regulation of this process. Moreover, the application of IAA to Fe-sufficient plants promoted both PS root release and TaNAAT gene expression thus indicating that auxin might be involved in the shoot to root signaling network regulating Fe-deficiency root responses in wheat. Conclusions: These results therefore indicate that PS root release in Fe-deficient wheat plants is directly modulated by the shoot Fe status through signaling pathways involving, among other possible effectors, auxin.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
BioMed Central
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
AUXIN
dc.subject
HORMONES
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IRON (FE) DEFICIENCY
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NICOTIANIAMINE TRANSFERASE
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PHYTOSIDEROPHORES
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WHEAT
dc.subject.classification
Otras Ciencias Naturales y Exactas
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dc.subject.classification
Otras Ciencias Naturales y Exactas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Shoot iron status and auxin are involved in iron deficiency-induced phytosiderophores release in wheat
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-08-03T18:18:40Z
dc.journal.volume
18
dc.journal.number
1
dc.journal.pagination
1-14
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Londres
dc.description.fil
Fil: Garnica, Maria. Universidad de Navarra; España
dc.description.fil
Fil: Bacaicoa, Eva. Universidad de Navarra; España
dc.description.fil
Fil: Mora, Maria Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Río Cuarto. Facultad de Ciencias Exactas Fisicoquímicas y Naturales. Departamento de Ciencias Naturales. Laboratorio de Fisiología Vegetal y de la Interacción Planta-microorganismo; Argentina
dc.description.fil
Fil: San Francisco, Sara. Timac Agro; España
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Fil: Baigorri, Roberto. Universidad de Navarra; España. Timac Agro; España
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Fil: Zamarreño, Angel Mari. Universidad de Navarra; España
dc.description.fil
Fil: Garcia Mina, Jose María. Universidad de Navarra; España
dc.journal.title
BMC Plant Biology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1186/s12870-018-1324-3
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://bmcplantbiol.biomedcentral.com/articles/10.1186/s12870-018-1324-3
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