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dc.contributor.author
Moriconi, Jorge Ignacio  
dc.contributor.author
Buet, Agustina  
dc.contributor.author
Simontacchi, Marcela Silvia  
dc.contributor.author
Santa Maria, Guillermo Esteban  
dc.date.available
2020-01-23T18:06:48Z  
dc.date.issued
2012-04  
dc.identifier.citation
Moriconi, Jorge Ignacio; Buet, Agustina; Simontacchi, Marcela Silvia; Santa Maria, Guillermo Esteban; Near-isogenic wheat lines carrying altered function alleles of the Rht-1 genes exhibit differential responses to potassium deprivation; Elsevier Ireland; Plant Science; 185-186; 4-2012; 199-207  
dc.identifier.issn
0168-9452  
dc.identifier.uri
http://hdl.handle.net/11336/95668  
dc.description.abstract
Most of the elements involved in the integration of signals of low external K+-supply into a physiological response pathway remain essentially unknown. The aim of this work was to study the influence exerted by DELLA proteins, which are known to be key components for the control of growth, on plant responses during K+ deprivation in wheat (Triticum aestivum) by using two sets of near-isogenic lines (NILs) in the Maringa and April Bearded cultivars. After K+ shortage, the NILs of both cultivars containing the Rht-B1b,Rht-D1b alleles, which encode altered function DELLA proteins, displayed either a slight or no decrease in chlorophyll content, in contrast to the sharp decrease observed in the NILs having the wild type alleles (Rht-B1a,Rht-D1a). That difference was accompanied by a lower relative decrease of biomass accumulation only in the Maringa cultivar. In both cultivars, high chlorophyll retention was coupled with K+ starvation-induced differences in superoxide dismutase and ascorbate peroxidase activities, which were enhanced in K+-starved Rht-B1b,Rht-D1b NILs. In addition, Rht-B1b,Rht-D1b and Rht-B1a,Rht-D1a NILs markedly differed in the accumulation of the major cations Ca2+, Na+ and K+. These results suggest a major role of the Rht-1 genes in the control of physiological responses during K+ deprivation.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Elsevier Ireland  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
DELLA  
dc.subject
potassium deficiency  
dc.subject
Rht  
dc.subject
Triticum aestivum  
dc.subject.classification
Ciencias de las Plantas, Botánica  
dc.subject.classification
Ciencias Biológicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.subject.classification
Ciencias de las Plantas, Botánica  
dc.subject.classification
Ciencias Biológicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Near-isogenic wheat lines carrying altered function alleles of the Rht-1 genes exhibit differential responses to 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
2020-01-22T19:53:45Z  
dc.journal.volume
185-186  
dc.journal.pagination
199-207  
dc.journal.pais
Irlanda  
dc.description.fil
Fil: Moriconi, Jorge Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentina  
dc.description.fil
Fil: Buet, Agustina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina  
dc.description.fil
Fil: Simontacchi, Marcela Silvia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Fisiología Vegetal. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Instituto de Fisiología Vegetal; Argentina  
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 "Dr. Raúl Alfonsín" (sede Chascomús). Universidad Nacional de San Martín. Instituto de Investigaciones Biotecnológicas. Instituto de Investigaciones Biotecnológicas "Dr. Raúl Alfonsín" (sede Chascomús); Argentina  
dc.journal.title
Plant Science  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0168945211002986  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.plantsci.2011.10.011