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Improved water use efficiency and shorter life cycle of Nicotiana tabacum due to modification of guard and vascular companion cells

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dc.citation.titleScientific Reportses
dc.citation.volume8es
dc.creatorMüller, Gabriela Leticia
dc.creatorLara, María Valeria
dc.creatorOitaven, Pablo
dc.creatorAndreo, Carlos Santiago
dc.creatorMaurino, Verónica G.
dc.creatorDrincovich, María Fabiana
dc.date.accessioned2021-03-06T19:54:27Z
dc.date.available2021-03-06T19:54:27Z
dc.date.issued2018-03-12
dc.descriptionSevere droughts are predicted for the twenty-frst century, which contrast with the increased demand for plant materials. Thus, to sustain future generations, a great challenge is to improve crop yield and water use efciency (WUE), which is the carbon gained per water lost. Here, expression of maize NADP-malic enzyme (NADP-ME) in the guard and vascular companion cells of Nicotiana tabacum results in enhanced WUE, earlier fowering and shorter life cycle. Transgenic lines exhibit reduced stomatal aperture than wild-type (WT). Nevertheless, an increased net CO2 fxation rate is observed, which results in less water consumption and more biomass production per water used. Transgenic lines export sugars to the phloem at higher rate than WT, which leads to higher sugars levels in phloem exudates and veins. Leaf quantitative proteomic profling revealed drastic diferences in proteins related to cell cycle, fowering, hormone signaling and carbon metabolism between transgenic lines and WT. We propose that the increased sugar export from leaves in the transgenic lines alleviates sugar negative feedback on photosynthesis and thus, stomatal closure takes place without a penalty in CO2 assimilation rate. This results in improved WUE and accelerated overall life cycle, key traits for plant productivity in the near future world.es
dc.descriptionPart of the results presented are described in the patent AR072885B1 “Método para inducir el crecimiento y/o foración temprana de las plantas” (www.inpi.gob.ar)
dc.description.filFil: Müller, Gabriela Leticia. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI -CONICET); Argentina.es
dc.description.filFil: Lara, María Valeria. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI -CONICET); Argentina.es
dc.description.filFil: Oitaven, Pablo. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI -CONICET); Argentina.es
dc.description.filFil: Andreo, Carlos Santiago. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI -CONICET); Argentina.es
dc.description.filMaurino, Verónica G. Heinrich-Heine-Universität Düsseldorf. Institute of Developmental and Molecular Biology of Plants. Plant Molecular Physiology and Biotechnology Group; Germany.es
dc.description.filFil: Maurino, Verónica G. Cluster of Excellence on Plant Sciences (CEPLAS); Germany.es
dc.description.filFil: Drincovich, María Fabiana. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI -CONICET); Argentina.es
dc.description.sponsorshipAgencia Nacional de Promoción Científica y Tecnológica (ANPCyT): PICT RAICES 2014-2470es
dc.description.sponsorshipConsejo Nacional de Investigaciones Científicas y Técnicas (CONICET)es
dc.description.sponsorshipDeutsche Forschungsgemeinschaf: MA2379/8-2 and EXC 1028es
dc.formatapplication/pdf
dc.format.extent1-14es
dc.identifier.issn2045-2322es
dc.identifier.urihttp://hdl.handle.net/2133/20025
dc.language.isoenges
dc.publisherNaturees
dc.relation.publisherversionhttps://doi.org/10.1038/s41598-018-22431-5es
dc.relation.publisherversionhttps://www.nature.com/articles/s41598-018-22431-5es
dc.rightsopenAccesses
dc.rights.holderUniversidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticases
dc.rights.holderMüller, Gabriela Leticiaes
dc.rights.holderLara, María Valeriaes
dc.rights.holderOitaven, Pabloes
dc.rights.holderAndreo, Carlos Santiagoes
dc.rights.holderMaurino, Verónica G.es
dc.rights.holderDrincovich, María Fabianaes
dc.rights.textAttribution 4.0 International (CC BY 4.0)es
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subjectTobaccoes
dc.subjectPlant Materialses
dc.subjectWater Use Efficiencyes
dc.subjectNADP-Malic Enzymees
dc.titleImproved water use efficiency and shorter life cycle of Nicotiana tabacum due to modification of guard and vascular companion cellses
dc.typearticle
dc.typeartículo
dc.typepublishedVersion
dc.type.collectionarticulo
dc.type.versionpublishedVersiones

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