ATHB2 is a negative regulator of germination in Arabidopsis thaliana seeds author correction

Mostrar otras versiones (1)

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 absc...

Descripción completa

Guardado en:
Detalles Bibliográficos
Otros Autores: Tognacca, Rocío Soledad, Carabelli, Mónica, Morelli, Giorgio, Ruberti, Ida, Botto, Javier Francisco
Formato: Artículo
Lenguaje:Inglés
Materias:
GERMINATION
ARABIDOPSIS THALIANA
Acceso en línea:http://ri.agro.uba.ar/files/download/articulo/2021tognacca3.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
LEADER 03692cab a22003257a 4500
001 20231017123533.0
003 AR-BaUFA
005 20240223133741.0
008 220714t2021 gw |||||o|||| 000 0 eng d
999 |c 55718  |d 55718 
999 |d 55718 
999 |d 55718 
022 |a 2045-2322 
040 |a AR-BaUFA  |c AR-BaUFA 
245 0 0 |a ATHB2 is a negative regulator of germination in Arabidopsis thaliana seeds  |b author correction 
520 |a 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. 
650 |2 Agrovoc  |9 26 
653 |a GERMINATION 
653 |a ARABIDOPSIS THALIANA 
700 1 |a Tognacca, Rocío Soledad  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |u Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE). Buenos Aires, Argentina.  |u CONICET – Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Fisiología, Biología Molecular y Neurociencias (IFIBYNE). Buenos Aires, Argentina.  |9 67244 
700 1 |a Carabelli, Mónica  |u National Research Council. Institute of Molecular Biology and Pathology. Rome, Italy.  |9 73887 
700 1 |a Morelli, Giorgio  |u Council for Agricultural Research and Economics (CREA). Research Centre for Genomics and Bioinformatics. Rome, Italy.  |9 73888 
700 1 |a Ruberti, Ida  |u National Research Council. Institute of Molecular Biology and Pathology. Rome, Italy.  |9 73889 
700 1 |a Botto, Javier Francisco  |u Universidad de Buenos Aires. Facultad de Agronomía. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |u CONICET – Universidad de Buenos Aires. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura (IFEVA). Buenos Aires, Argentina.  |9 65609 
773 0 |t Scientific Reports  |g Vol.11 (2021), 1 p., il., grafs. 
856 |f 2021tognacca3  |i en internet  |q application/pdf  |u http://ri.agro.uba.ar/files/download/articulo/2021tognacca3.pdf  |x ARTI202311 
856 |u https://www.nature.com  |z LINK AL EDITOR 
942 |c ARTICULO 
942 |c ENLINEA 
976 |a AAG 

Ejemplares similares