Characterization of tomato Cycling Dof Factors reveals conserved and new functions in the control of flowering time and abiotic stress responses.

Corrales Ducuara, Alba Rocio and Nebauer, Sergio G. and Carrillo Gil, Laura and Fernandez Nohales, Pedro and Marqués, Jorge and Renau Morata, Begoña and Granel, Antonio and Pollmann, Stephan and Vicente Carbajosa, Jesus and Molina, Rosa Victoria and Medina Alcazar, Joaquin (2013). Characterization of tomato Cycling Dof Factors reveals conserved and new functions in the control of flowering time and abiotic stress responses.. "Journal of Experimental Botany", v. 65 (n. 4); pp. 995-1012. ISSN 0022-0957. https://doi.org/10.1093/jxb/ert451.

Description

Title: Characterization of tomato Cycling Dof Factors reveals conserved and new functions in the control of flowering time and abiotic stress responses.
Author/s:
  • Corrales Ducuara, Alba Rocio
  • Nebauer, Sergio G.
  • Carrillo Gil, Laura
  • Fernandez Nohales, Pedro
  • Marqués, Jorge
  • Renau Morata, Begoña
  • Granel, Antonio
  • Pollmann, Stephan
  • Vicente Carbajosa, Jesus
  • Molina, Rosa Victoria
  • Medina Alcazar, Joaquin
Item Type: Article
Título de Revista/Publicación: Journal of Experimental Botany
Date: January 2013
ISSN: 0022-0957
Volume: 65
Subjects:
Faculty: Centro de Investigación en Biotecnología y Genómica de Plantas (CBGP) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (3MB)

Abstract

DNA binding with One Finger (DOF) transcription factors are involved in multiple aspects of plant growth and development but their precise roles in abiotic stress tolerance are largely unknown. Here we report a group of five tomato DOF genes, homologous to Arabidopsis Cycling DOF Factors (CDFs), that function as transcriptional regulators involved in responses to drought and salt stress and flowering-time control in a gene-specific manner. SlCDF1?5 are nuclear proteins that display specific binding with different affinities to canonical DNA target sequences and present diverse transcriptional activation capacities in vivo. SlCDF1?5 genes exhibited distinct diurnal expression patterns and were differentially induced in response to osmotic, salt, heat, and low-temperature stresses. Arabidopsis plants overexpressing SlCDF1 or SlCDF3 showed increased drought and salt tolerance. In addition, the expression of various stress-responsive genes, such as COR15, RD29A, and RD10, were differentially activated in the overexpressing lines. Interestingly, overexpression in Arabidopsis of SlCDF3 but not SlCDF1 promotes late flowering through modulation of the expression of flowering control genes such as CO and FT. Overall, our data connect SlCDFs to undescribed functions related to abiotic stress tolerance and flowering time through the regulation of specific target genes and an increase in particular metabolites

More information

Item ID: 29160
DC Identifier: http://oa.upm.es/29160/
OAI Identifier: oai:oa.upm.es:29160
DOI: 10.1093/jxb/ert451
Official URL: http://jxb.oxfordjournals.org/content/65/4/995.abstract
Deposited by: Memoria Investigacion
Deposited on: 29 Jul 2014 17:21
Last Modified: 31 Mar 2015 22:56
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM