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dc.contributor.author
Tognacca, Rocío Soledad
dc.contributor.author
Monica, Carabelli
dc.contributor.author
Giorgio, Morelli
dc.contributor.author
Ida, Ruberti
dc.contributor.author
Botto, Javier Francisco
dc.date.available
2022-09-09T13:46:38Z
dc.date.issued
2021-02
dc.identifier.citation
Tognacca, Rocío Soledad; Monica, Carabelli; Giorgio, Morelli; Ida, Ruberti; Botto, Javier Francisco; ATHB2 is a negative regulator of germination in Arabidopsis thaliana seeds; Springer Nature; Scientific Reports; 11; 9688; 2-2021; 1-13
dc.identifier.issn
2045-2322
dc.identifier.uri
http://hdl.handle.net/11336/168111
dc.description.abstract
The germination timing of seeds is of the utmost adaptive importance for plant populations. Light is one of the best characterized factors promoting seed germination in several species. The germination is also fnely regulated by changes in hormones levels, mainly those of gibberellin (GA) and abscisic acid (ABA). Here, we performed physiological, pharmacological, and molecular analyses to uncover the role of ATHB2, an HD-ZIP II transcription factor, in germination of Arabidopsis seeds. Our study demonstrated that ATHB2 is a negative regulator and sustains the expression of transcription factors to block germination promoted by light. Besides, we found that ATHB2 increases ABA sensitivity. Moreover, ABA and auxin content in athb2-2 mutant is higher than wild-type in dry seeds, but the diferences disappeared during the imbibition in darkness and the frst hours of exposition to light, respectively. Some ABA and light transcription factors are up-regulated by ATHB2, such as ABI5, ABI3, XERICO, SOMNUS and PIL5/PIF1. In opposition, PIN7, an auxin transport, is down-regulated. The role of ATHB2 as a repressor of germination induced by light afecting the gemination timing, could have diferential efects on the establishment of seedlings altering the competitiveness between crops and weeds in the feld.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer Nature
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
germination
dc.subject
seeds
dc.subject
ATHB2
dc.subject
Light
dc.subject.classification
Biología del Desarrollo
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
ATHB2 is a negative regulator of germination in Arabidopsis thaliana seeds
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-08-23T20:46:58Z
dc.journal.volume
11
dc.journal.number
9688
dc.journal.pagination
1-13
dc.journal.pais
Reino Unido
dc.journal.ciudad
London
dc.description.fil
Fil: Tognacca, Rocío Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Fisiología, Biología Molecular y Neurociencias. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias; Argentina
dc.description.fil
Fil: Monica, Carabelli. Consiglio Nazionale delle Ricerche; Italia
dc.description.fil
Fil: Giorgio, Morelli. Research Centre for Genomics and Bioinformatics, Council for Agricultural Research and Economics; Italia
dc.description.fil
Fil: Ida, Ruberti. Consiglio Nazionale delle Ricerche; Italia
dc.description.fil
Fil: Botto, Javier Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura; Argentina
dc.journal.title
Scientific Reports
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1038/s41598-021-88874-5
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41598-021-88874-5
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