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Differential growth at the apical hook: all roads lead to auxin

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Differential growth at the apical hook: all roads lead to auxin

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dc.contributor.author Abbas, Mohamad es_ES
dc.contributor.author Alabadí Diego, David es_ES
dc.contributor.author Blazquez Rodriguez, Miguel Angel es_ES
dc.date.accessioned 2016-07-19T10:50:05Z
dc.date.available 2016-07-19T10:50:05Z
dc.date.issued 2013-11-05
dc.identifier.issn 1664-462X
dc.identifier.uri http://hdl.handle.net/10251/67816
dc.description.abstract [EN] The apical hook is a developmentally regulated structure that appears in dicotyledonous seedlings when seeds germinate buried in the soil. It protects the shoot apical meristem and cotyledons from damage while the seedling is pushing upwards seeking for light, and it is formed by differential cell expansion between both sides of the upper part of the hypocotyl. Its apparent simplicity and the fact that it is dispensable when seedlings are grown in vitro have converted the apical hook in one of the favorite experimental models to study the regulation of differential growth. The involvement of hormones especially auxin in this process was manifested already in the early studies. Remarkably, a gradient of this hormone across the hook curvature is instrumental to complete its development, similar to what has been proposed for other processes involving the bending of an organ, such as tropic responses. In agreement with this, other hormones-mainly gibberellins and ethylene-and the light, regulate in a timely and interconnected manner the auxin gradient to promote hook development and its opening, respectively. Here, we review the latest findings obtained mainly with the apical hook of Arabidopsis thaliana, paying special attention to the molecular mechanisms for the cross-regulation between the different hormone signaling pathways that underlie this developmental process. es_ES
dc.description.sponsorship This work was supported by grants from the Spanish Ministry of Science and Innovation (BIO2010-15071 and CSD2007-00057) and the Generalitat Valenciana (ACOMP/2011/288 and PROMETEO/2010/020).
dc.language Inglés es_ES
dc.publisher Frontiers Media es_ES
dc.relation MICINN/BIO2010-15071 es_ES
dc.relation GV/ACOMP/2011/288 es_ES
dc.relation MICINN/CSD2007-00057
dc.relation GV/PROMETEO/2010/020
dc.relation.ispartof Frontiers in Plant Science es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Apical hook es_ES
dc.subject Auxin es_ES
dc.subject Ethylene es_ES
dc.subject Gibberellin es_ES
dc.subject Hormone interaction es_ES
dc.subject Development es_ES
dc.title Differential growth at the apical hook: all roads lead to auxin es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.3389/fpls.2013.00441
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Biología Molecular y Celular de Plantas - Institut Universitari Mixt de Biologia Molecular i Cel·lular de Plantes es_ES
dc.description.bibliographicCitation Abbas, M.; Alabadí Diego, D.; Blazquez Rodriguez, MA. (2013). Differential growth at the apical hook: all roads lead to auxin. Frontiers in Plant Science. 4:441-1-441-9. doi:10.3389/fpls.2013.00441 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.3389/fpls.2013.00441 es_ES
dc.description.upvformatpinicio 441-1 es_ES
dc.description.upvformatpfin 441-9 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 4 es_ES
dc.relation.senia 257691 es_ES
dc.identifier.pmid 24204373
dc.identifier.pmcid PMC3817370 en_EN
dc.contributor.funder Ministerio de Ciencia e Innovación (MICINN)
dc.contributor.funder Generalitat Valenciana (GV)


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