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dc.contributor.author
Fonouni-farde, Camille Audrey
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dc.contributor.author
Miassod, Ambre
dc.contributor.author
Laffont, Carole
dc.contributor.author
Morin, Halima
dc.contributor.author
Bendahmane, Abdelhafid
dc.contributor.author
Diet, Anouck
dc.contributor.author
Frugier, Florian
dc.date.available
2020-11-22T14:57:03Z
dc.date.issued
2019-09
dc.identifier.citation
Fonouni-farde, Camille Audrey; Miassod, Ambre; Laffont, Carole; Morin, Halima; Bendahmane, Abdelhafid; et al.; Gibberellins negatively regulate the development of Medicago truncatula root system.; Nature Publishing Group; Scientific reports; 9; 9-2019; 1-9
dc.identifier.issn
2045-2322
dc.identifier.uri
http://hdl.handle.net/11336/118741
dc.description.abstract
The root system displays a remarkable plasticity that enables plants to adapt to changing environmental conditions. This plasticity is tightly linked to the activity of root apical meristems (RAMs) and to the formation of lateral roots, both controlled by related hormonal crosstalks. In Arabidopsis thaliana, gibberellins (GAs) were shown to positively control RAM growth and the formation of lateral roots. However, we showed in Medicago truncatula that GAs negatively regulate root growth and RAM size as well as the number of lateral roots depending at least on the MtDELLA1 protein. By using confocal microscopy and molecular analyses, we showed that GAs primarily regulate RAM size by affecting cortical cell expansion and additionally negatively regulate a subset of cytokinin-induced root expansin encoding genes. Moreover, GAs reduce the number of cortical cell layers, resulting in the formation of both shorter and thinner roots. These results suggest contrasting effects of GA regulations on the root system architecture depending on plant species.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Nature Publishing Group
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
ROOT
dc.subject
GIBBERELLIN
dc.subject
DELLA
dc.subject
PLASTICITY
dc.subject.classification
Ciencias de las Plantas, Botánica
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Gibberellins negatively regulate the development of Medicago truncatula root system.
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2020-11-20T19:56:48Z
dc.journal.volume
9
dc.journal.pagination
1-9
dc.journal.pais
Francia
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dc.description.fil
Fil: Fonouni-farde, Camille Audrey. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Agrobiotecnología del Litoral. Universidad Nacional del Litoral. Instituto de Agrobiotecnología del Litoral; Argentina
dc.description.fil
Fil: Miassod, Ambre. Universite Paris Saclay; Francia
dc.description.fil
Fil: Laffont, Carole. Universite Paris Saclay; Francia
dc.description.fil
Fil: Morin, Halima. Universite Paris Saclay; Francia
dc.description.fil
Fil: Bendahmane, Abdelhafid. Universite Paris Saclay; Francia
dc.description.fil
Fil: Diet, Anouck. Universite Paris Saclay; Francia
dc.description.fil
Fil: Frugier, Florian. Universite Paris Saclay; Francia
dc.journal.title
Scientific reports
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41598-019-38876-1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1038/s41598-019-38876-1
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