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dc.contributor.author | Gaion, L.A.![]() |
es_ES |
dc.contributor.author | Monteiro, C.C.![]() |
es_ES |
dc.contributor.author | Cruz, F.J.R.![]() |
es_ES |
dc.contributor.author | Rossatto, D.R.![]() |
es_ES |
dc.contributor.author | Lopez Diaz, Isabel![]() |
es_ES |
dc.contributor.author | Carrera Bergua, Esther![]() |
es_ES |
dc.contributor.author | Lima, J.E.![]() |
es_ES |
dc.contributor.author | Peres, L.E.P.![]() |
es_ES |
dc.contributor.author | Carvalho, R.F.![]() |
es_ES |
dc.date.accessioned | 2019-09-05T20:03:53Z | |
dc.date.available | 2019-09-05T20:03:53Z | |
dc.date.issued | 2018 | es_ES |
dc.identifier.issn | 0176-1617 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/125087 | |
dc.description.abstract | [EN] Plants are sessile organisms that must perceive and respond to various environmental constraints throughout their life cycle. Among these constraints, drought stress has become the main limiting factor to crop production around the world. Water deprivation is perceived primarily by the roots, which efficiently signal the shoot to trigger drought responses in order to maximize a plant's ability to survive. In this study, the tomato (Solanum lycopersicum L.) mutant procera (pro), with a constitutive response to gibberellin (GA), and its near isogenic line cv. Micro-Tom (MT), were used in reciprocal grafting under well-watered and water stress conditions to evaluate the role of GA signaling in root-to-shoot communication during drought stress. Growth, oxidative stress, gene expression, water relations and hormonal content were measured in order to provide insights into GA-mediated adjustments to water stress. All graft combinations with pro (i.e. pro/pro, MT/pro and pro/MT) prevented the reduction of growth under stress conditions without a reduction in oxidative stress. The increase of oxidative stress was followed by upregulation of SlDREB2, a drought-tolerance related gene, in all drought-stressed plants. Scions harboring the pro mutation tended to increase the abscisic acid (ABA) content, independent of the rootstock. Moreover, the GA sensitivity of the rootstock modulated stomatal conductance and water use efficiency under drought stress, indicating GA and ABA crosstalk in the adjustment of growth and water economy. | es_ES |
dc.description.sponsorship | The Sao Paulo Research Foundation (FAPESP) for doctoral fellowship to the first author under grant 2014/19165-2. | |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Journal of Plant Physiology | es_ES |
dc.rights | Reserva de todos los derechos | es_ES |
dc.subject | Abiotic stress | es_ES |
dc.subject | Grafting | es_ES |
dc.subject | Root-to-shoot signaling | es_ES |
dc.subject | Stomatal movement | es_ES |
dc.subject | Water relations | es_ES |
dc.subject | Water stress | es_ES |
dc.title | Constitutive gibberellin response in grafted tomato modulates root-to-shoot signaling under drought stress | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.jplph.2017.12.003 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/FAPESP//2014%2F19165-2/ | es_ES |
dc.rights.accessRights | Cerrado | 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 | Gaion, L.; Monteiro, C.; Cruz, F.; Rossatto, D.; Lopez Diaz, I.; Carrera Bergua, E.; Lima, J.... (2018). Constitutive gibberellin response in grafted tomato modulates root-to-shoot signaling under drought stress. Journal of Plant Physiology. 221:11-21. https://doi.org/10.1016/j.jplph.2017.12.003 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | http://doi.org/10.1016/j.jplph.2017.12.003 | es_ES |
dc.description.upvformatpinicio | 11 | es_ES |
dc.description.upvformatpfin | 21 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 221 | es_ES |
dc.identifier.pmid | 29223878 | |
dc.relation.pasarela | S\382289 | es_ES |
dc.contributor.funder | Fundação de Amparo à Pesquisa do Estado de São Paulo |