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dc.contributor.authorCapell Capell, Teresa
dc.contributor.authorBassie Rene, Ludovic
dc.contributor.authorChristou, Paul
dc.date.accessioned2016-07-04T10:57:51Z
dc.date.issued2004
dc.identifier.issn1091-6490
dc.identifier.urihttp://hdl.handle.net/10459.1/57344
dc.description.abstractWe have generated transgenic rice plants expressing the Datura stramonium adc gene and investigated their response to drought stress. We monitored the steady-state mRNA levels of genes involved in polyamine biosynthesis (Datura adc, rice adc, and rice samdc) and polyamine levels. Wild-type plants responded to the onset of drought stress by increasing endogenous putrescine levels, but this was insufficient to trigger the conversion of putrescine into spermidine and spermine (the agents that are believed to protect plants under stress). In contrast, transgenic plants expressing Datura adc produced much higher levels of putrescine under stress, promoting spermidine and spermine synthesis and ultimately protecting the plants from drought. We demonstrate clearly that the manipulation of polyamine biosynthesis in plants can produce drought-tolerant germplasm, and we propose a model consistent with the role of polyamines in the protection of plants against abiotic stress.ca_ES
dc.language.isoengca_ES
dc.publisherNational Academy of Sciencesca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1073 pnas.0306974101ca_ES
dc.relation.ispartofPNAS, 2004, vol. 101, núm. 26, p. 9909-9914ca_ES
dc.rights(c) The National Academy of Sciences of the USA, 2004ca_ES
dc.titleModulation of the polyamine biosynthetic pathway in transgenic rice confers tolerance to drought stressca_ES
dc.typearticleca_ES
dc.identifier.idgrec005192
dc.type.versionpublishedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/restrictedAccessca_ES
dc.identifier.doihttps://doi.org/10.1073 pnas.0306974101
dc.date.embargoEndDate2025-01-01


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