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Early gene expression events in the laminar abscission zone of abscission-promoted citrus leaves after a cycleof water stress/rehydration: involvement of CitbHLH1

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Early gene expression events in the laminar abscission zone of abscission-promoted citrus leaves after a cycleof water stress/rehydration: involvement of CitbHLH1

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dc.contributor.author Agustí, Javier es_ES
dc.contributor.author Gimeno, Jacinta es_ES
dc.contributor.author Merelo, Paz es_ES
dc.contributor.author Serrano Salom, Ramón es_ES
dc.contributor.author Cercós, Manuel es_ES
dc.contributor.author Conesa, Ana es_ES
dc.contributor.author Talón, Manuel es_ES
dc.contributor.author Tadeo, Francisco R. es_ES
dc.date.accessioned 2016-06-01T12:33:04Z
dc.date.available 2016-06-01T12:33:04Z
dc.date.issued 2012-10
dc.identifier.issn 0022-0957
dc.identifier.uri http://hdl.handle.net/10251/65058
dc.description.abstract [EN] Leaf abscission is a common response of plants to drought stress. Some species, such as citrus, have evolved a specific behaviour in this respect, keeping their leaves attached to the plant body during water stress until this is released by irrigation or rain. This study successfully reproduced this phenomenon under controlled conditions (24h of water stress followed by 24h of rehydration) and used it to construct a suppression subtractive hybridization cDNA library enriched in genes involved in the early stages of rehydration-promoted leaf abscission after water stress. Sequencing of the library yielded 314 unigenes, which were spotted onto nylon membranes. Membrane hybridization with petiole (Pet)- and laminar abscission zone (LAZ)-enriched RNA samples corresponding to early steps in leaf abscission revealed an almost exclusive preferential gene expression programme in the LAZ. The data identified major processes such as protein metabolism, cell-wall modification, signalling, control of transcription and vesicle production, and transport as the main biological processes activated in LAZs during the early steps of rehydration-promoted leaf abscission after water stress. Based on these findings, a model for the early steps of citrus leaf abscission is proposed. In addition, it is suggested that CitbHLH1, the putative citrus orthologue of Arabidopsis BIGPETAL, may play major roles in the control of abscission-related events in citrus abscission zones es_ES
dc.description.sponsorship Work at the Centre de Genomica was supported by INIA grant RTA08-00065-00-00 and Ministerio de Ciencia e Innovacion-FEDER grants AGL2007-65437-C04-01, PSG-06-0000-2009-8, IPT-01-0000-2010-43, and AGL2011-30240. J.A. and P. M. were recipients of INIA predoctoral fellowships and M. C. and A. C. of INIA/CCAA and 'Ramon y Cajal' postdoctoral contracts, respectively. The help and expertise of E. Blazquez, I. Sanchis, and A. Boix are gratefully acknowledged. en_EN
dc.language Inglés es_ES
dc.publisher Oxford University Press (OUP) es_ES
dc.relation INIA grant RTA08-00065-00-00 es_ES
dc.relation info:eu-repo/grantAgreement/MEC//AGL2007-65437-C04-01/ES/ANALISIS GENOMICO Y FENOTIPICO DE LA VARIABILIDAD GENETICA DE LOS CITRICOS EN RELACION CON LA TOLERANCIA FRENTE A LOS ESTRESES ABIOTICOS/ es_ES
dc.relation Ministerio de Ciencia e Innovacion-FEDER grant PSG-06-0000-2009-8 es_ES
dc.relation Ministerio de Ciencia e Innovacion-FEDER grants IPT-01-0000-2010-43 es_ES
dc.relation info:eu-repo/grantAgreement/MICINN//AGL2011-30240/ES/IDENTIFICACION Y CARACTERIZACION DE GENES RELACIONADOS CON LA CALIDAD DE LA FRUTA Y LA PRODUCTIVIDAD EN CITRICOS MEDIANTE TECNICAS DE GENOMICA Y METABOLOMICA/ es_ES
dc.relation INIA/CCAA es_ES
dc.relation 'Ramon y Cajal' es_ES
dc.relation.ispartof Journal of Experimental Botany es_ES
dc.rights Reconocimiento - No comercial (by-nc) es_ES
dc.subject Citrus clementina es_ES
dc.subject cDNA custom macroarray es_ES
dc.subject expression profiling es_ES
dc.subject Laminar abscission zone es_ES
dc.subject mandarin es_ES
dc.subject Petiole es_ES
dc.subject.classification BIOQUIMICA Y BIOLOGIA MOLECULAR es_ES
dc.title Early gene expression events in the laminar abscission zone of abscission-promoted citrus leaves after a cycleof water stress/rehydration: involvement of CitbHLH1 es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1093/jxb/ers270
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Biotecnología - Departament de Biotecnologia es_ES
dc.description.bibliographicCitation Agustí, J.; Gimeno, J.; Merelo, P.; Serrano Salom, R.; Cercós, M.; Conesa, A.; Talón, M.... (2012). Early gene expression events in the laminar abscission zone of abscission-promoted citrus leaves after a cycleof water stress/rehydration: involvement of CitbHLH1. Journal of Experimental Botany. 63:6079-6091. https://doi.org/10.1093/jxb/ers270 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://dx.doi.org/10.1093/jxb/ers270 es_ES
dc.description.upvformatpinicio 6079 es_ES
dc.description.upvformatpfin 6091 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 63 es_ES
dc.relation.senia 232801 es_ES
dc.identifier.pmid 23028022 en_EN
dc.identifier.pmcid PMC3481208 en_EN
dc.contributor.funder Ministerio de Educación y Ciencia es_ES
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES


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