Mostrar el registro sencillo del ítem
dc.contributor.author
Moriconi, Jorge Ignacio
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Kotula, Lukasz
dc.contributor.author
Santa Maria, Guillermo Esteban
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Colmer, Timothy David
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.date.available
2020-11-11T15:51:31Z
dc.date.issued
2019-03
dc.identifier.citation
Moriconi, Jorge Ignacio; Kotula, Lukasz; Santa Maria, Guillermo Esteban; Colmer, Timothy David; Root phenotypes of dwarf and “overgrowth” SLN1 barley mutants, and implications for hypoxic stress tolerance; Elsevier Gmbh; Journal of Plant Physiology; 234-235; 3-2019; 60-70
dc.identifier.issn
0176-1617
dc.identifier.uri
http://hdl.handle.net/11336/118166
dc.description.abstract
Gibberellins are central to the regulation of plant development and growth. Action of gibberellins involves the degradation of DELLA proteins, which are negative regulators of growth. In barley (Hordeum vulgare), certain mutations affecting genes involved in gibberellin synthesis or coding for the barley DELLA protein (Sln1) confer dwarfism. Recent studies have identified new alleles of Sln1 with the capacity to revert the dwarf phenotype back to the taller phenotypes. While the effect of these overgrowth alleles on shoot phenotypes has been explored, no information is available for roots. Here, we examined aspects of the root phenotypes displayed by plants with various Sln1 gene alleles, and tested responses to growth in an O 2 -deficient root-zone as occurs during soil waterlogging. One overgrowth line, bearing the Sln1d.8 allele carrying two amino acid substitutions (one in the amino terminus and one in the GRAS domain of the encoded DELLA protein), displays profound and opposite effects on shoot height and root length. While it stimulates shoot height, it severely compromises root length by a reduction of cell size in zones distal to the root apex. In addition, Sln1d.8 plants counteract the negative effect of the original mutation on the formation of adventitious roots. Interestingly, plants bearing this allele display enhanced resistance to flooding stress in a way non-related with increased root porosity. Thus, various Sln1 gene alleles contribute to root phenotypes and can also influence plant responses to root-zone O 2 -deficiency stress.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Gmbh
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ADVENTITIOUS ROOTS
dc.subject
DELLAS
dc.subject
FLOODING
dc.subject
GIBBERELLINS
dc.subject
OVERGROWTH
dc.subject
TOLERANCE
dc.subject
WATERLOGGING
dc.subject.classification
Otras Biotecnología Agropecuaria
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
Biotecnología Agropecuaria
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
CIENCIAS AGRÍCOLAS
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.title
Root phenotypes of dwarf and “overgrowth” SLN1 barley mutants, and implications for hypoxic stress tolerance
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-11-05T15:37:47Z
dc.journal.volume
234-235
dc.journal.pagination
60-70
dc.journal.pais
Alemania
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.description.fil
Fil: Moriconi, Jorge Ignacio. University of Western Australia; Australia. 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: Kotula, Lukasz. University of Western Australia; Australia
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.description.fil
Fil: Colmer, Timothy David. University of Western Australia; Australia
dc.journal.title
Journal of Plant Physiology
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.jplph.2019.01.009
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/S0176161719300082?via%3Dihub
Archivos asociados