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http://hdl.handle.net/10261/14019
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dc.contributor.author | Albacete, Alfonso | - |
dc.contributor.author | Martínez-Andújar, Cristina | - |
dc.contributor.author | Ghanem, M. E. | - |
dc.contributor.author | Acosta, Manuel | - |
dc.contributor.author | Sánchez-Bravo, J. | - |
dc.contributor.author | Asins, María J. | - |
dc.contributor.author | Cuartero, Jesús | - |
dc.contributor.author | Lutts, S. | - |
dc.contributor.author | Dodd, Ian C. | - |
dc.contributor.author | Pérez-Alfocea, Francisco | - |
dc.date.accessioned | 2009-06-26T11:28:17Z | - |
dc.date.available | 2009-06-26T11:28:17Z | - |
dc.date.issued | 2009-07 | - |
dc.identifier.citation | Plant, Cell and Environment (2009) 32, 928–938 | - |
dc.identifier.uri | http://hdl.handle.net/10261/14019 | - |
dc.description.abstract | Tomato crop productivity under salinity can be improved by grafting cultivars onto salt-tolerant wild relatives, thus mediating the supply of root-derived ionic and hormonal factors that regulate leaf area and senescence.Atomato cultivar was grafted onto rootstocks from a population of recombinant inbred lines (RILs) derived from a Solanum lycopersicum ¥ Solanum cheesmaniae cross and cultivated under moderate salinity (75 mMNaCl).Concentrations ofNa+,K+ and several phytohormones [abscisic acid (ABA); the cytokinins (CKs) zeatin, Z; zeatin riboside, ZR; and the ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC)]were analysed in leaf xylem sap in graft combinations of contrasting vigour. Scion leaf area correlated with photosystem II (PSII) efficiency (Fv/Fm) and determined fruit productivity. Xylem K+ (but not Na+), K+/Na+, the active CK Z, the ratio with its storage formZ/ZRand especially the ratio betweenCKsand ACC(Z/ACCandZ + ZR/ACC)were positively loaded into the first principal component (PC) determining both leaf growth and PSII efficiency. In contrast, the ratioACC/ABA was negatively correlated with leaf biomass. Although the underlying physiological mechanisms by which rootstocks mediate leaf area or chlorophyll fluorescence (and thus influence tomato salt tolerance) seem complex, a putative potassium–CK interaction involved in regulating both processes merits further attention. | en_US |
dc.description.sponsorship | National de la Recherche Scientifique–FNRS (Belgium) and to the Fundación Séneca (Comunidad Autónoma de Murcia, Spain) for a travel grant to M.E.G. and F.P.A., respectively, and to the CSIC (Spain) for a research grant to A.A. (I3P Program). I.C.D. thanks BBSRC for support of research on ACC signalling. Research supported by the Fundación Séneca de la Región de Murcia, Spain (project 03011/PI/05), the INIA-FEDER project RTA04-075-C2 and by the CICYT–FEDER project AGL2008-01733/AGR | en_US |
dc.format.extent | 354920 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | en_US |
dc.publisher | Blackwell Publishing | - |
dc.rights | closedAccess | en_US |
dc.subject | tomato (Solanum lycopersicum L.) | en_US |
dc.subject | Abscisic acid (ABA) | en_US |
dc.subject | 1-aminocyclopropane-1-carboxylic acid | en_US |
dc.subject | grafting | en_US |
dc.subject | hormones | en_US |
dc.subject | potassium | en_US |
dc.subject | principal component analysis | en_US |
dc.subject | salt stress | en_US |
dc.subject | zeatin | en_US |
dc.subject | zeatin riboside | en_US |
dc.title | Rootstock-mediated changes in xylem ionic and hormonal status are correlated with delayed leaf senescence, and increased leaf area and crop productivity in salinized tomato | en_US |
dc.type | artículo | en_US |
dc.identifier.doi | 10.1111/j.1365-3040.2009.01973.x | - |
dc.description.peerreviewed | Peer reviewed | en_US |
dc.relation.publisherversion | http://dx.doi.org/10.1111/j.1365-3040.2009.01973.x | - |
dc.contributor.funder | Fonds de la Recherche Scientifique (Fédération Wallonie-Bruxelles) | - |
dc.contributor.funder | Fundación Séneca | - |
dc.contributor.funder | Consejo Superior de Investigaciones Científicas (España) | - |
dc.identifier.funder | http://dx.doi.org/10.13039/501100002661 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/100007801 | es_ES |
dc.identifier.funder | http://dx.doi.org/10.13039/501100003339 | es_ES |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.languageiso639-1 | en | - |
item.fulltext | No Fulltext | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | none | - |
item.openairetype | artículo | - |
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