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dc.contributor.author
Oliferuk, Sonia  
dc.contributor.author
Ródenas, Reyes  
dc.contributor.author
Pérez, Adriana Alicia  
dc.contributor.author
Martínez, Vicente  
dc.contributor.author
Rubio, Francisco  
dc.contributor.author
Santa Maria, Guillermo Esteban  
dc.date.available
2018-08-13T18:50:10Z  
dc.date.issued
2017-06  
dc.identifier.citation
Oliferuk, Sonia; Ródenas, Reyes; Pérez, Adriana Alicia; Martínez, Vicente; Rubio, Francisco; et al.; DELLAs Contribute to Set the Growth and Mineral Composition of Arabidopsis thaliana Plants Grown Under Conditions of Potassium Deprivation; Springer; Journal of Plant Growth Regulation; 36; 2; 6-2017; 487-501  
dc.identifier.issn
0721-7595  
dc.identifier.uri
http://hdl.handle.net/11336/55180  
dc.description.abstract
DELLAs proteins play a major role in the modulation of plant responses to fluctuations in environmental conditions. In this work, we examined to what extent Arabidopsis thaliana plants lacking DELLAs activity (5xdella mutant) or carrying an altered function allele of one of the DELLAs coding genes (gai-1 mutant) display differential responses, in terms of growth and shoot elemental composition, relative to WT plants when deprived of potassium (K). Studies with plants grown in hydroponic media unveiled that the shoot mineral composition of gai-1 constitutively differs from that of WT and 5xdella plants. Tolerance to K-deprivation, as estimated by the relative decline of biomass accumulation, followed the order gai-1 > WT > 5xdella. In turn, the degree of responsiveness of the shoot composition to the stress condition followed the order 5xdella > WT > gai-1, suggesting a correspondence between the degree of injury and changes in the elemental composition. Internal efficiency of K-utilization was maximized in WT relative to 5xdella plants. Interestingly, the acquisition of K was severely impaired in gai-1 plants well supplied, or deprived of, K. Complementary studies indicated that influx and root-to-shoot transport of Rubidium, a K-analogue, were reduced in those plants. Furthermore, evidence obtained supports the view that the effect of altered DELLAs derives, at least partially, from controlling the accumulation of transcripts coding for the AtHAK5 transporter. These results, together with the observation that K-deprivation promotes the accumulation of a DELLA protein (RGA) fused to GFP in root cells, suggest a pivotal role of DELLAs in key plant responses to K-deprivation.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Springer  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Arabidopsis Thaliana  
dc.subject
Della  
dc.subject
Ionome  
dc.subject
Potassium  
dc.subject
Uptake  
dc.subject
Utilization  
dc.subject.classification
Otras Ciencias Biológicas  
dc.subject.classification
Ciencias Biológicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
DELLAs Contribute to Set the Growth and Mineral Composition of Arabidopsis thaliana Plants Grown Under Conditions of Potassium Deprivation  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-08-13T14:47:16Z  
dc.identifier.eissn
1435-8107  
dc.journal.volume
36  
dc.journal.number
2  
dc.journal.pagination
487-501  
dc.journal.pais
Alemania  
dc.journal.ciudad
Berlín  
dc.description.fil
Fil: Oliferuk, Sonia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas ; Argentina  
dc.description.fil
Fil: Ródenas, Reyes. Consejo Superior de Investigaciones Científicas. Centro de Edafología y Biología Aplicada del Segura; España  
dc.description.fil
Fil: Pérez, Adriana Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas ; Argentina  
dc.description.fil
Fil: Martínez, Vicente. Consejo Superior de Investigaciones Científicas. Centro de Edafología y Biología Aplicada del Segura; España  
dc.description.fil
Fil: Rubio, Francisco. Consejo Superior de Investigaciones Científicas. Centro de Edafología y Biología Aplicada del Segura; España  
dc.description.fil
Fil: Santa Maria, Guillermo Esteban. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas ; Argentina  
dc.journal.title
Journal of Plant Growth Regulation  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://link.springer.com/article/10.1007/s00344-016-9656-4  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s00344-016-9656-4