dc.creator | Arce, Debora Pamela | |
dc.creator | Godoy, Andrea Verónica | |
dc.creator | Tsuda, Kenichi | |
dc.creator | Yamazaki, Ken Ichi | |
dc.creator | Valle, Estela Marta | |
dc.creator | Iglesias, María José | |
dc.creator | Di Mauro, Florencia | |
dc.creator | Casalongue, Claudia | |
dc.date | 2010-02-15 | |
dc.identifier | http://hdl.handle.net/11336/130877 | |
dc.identifier | Arce, Debora Pamela; Godoy, Andrea Verónica; Tsuda, Kenichi; Yamazaki, Ken Ichi; Valle, Estela Marta; et al.; The analysis of an Arabidopsis triple knock-down mutant reveals functions for MBF1 genes under oxidative stress conditions; Elsevier Gmbh; Journal of Plant Physiology; 167; 3; 15-2-2010; 194-200 | |
dc.identifier | 0176-1617 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.description | Transcriptional co-activators of the multiprotein bridging factor 1 (MBF1) type belong to a small multigenic family that controls gene expression by connecting transcription factors and the basal transcription machinery. In this report, a triple knock-down mutant (abc-) for the Arabidopsis thaliana MBF1 genes AtMBF1a, AtMBF1b and AtMBF1c was generated. The phenotypic characterization using oxidative agents such as hydrogen peroxide and methyl viologen revealed that the abc- mutant was more sensitive to oxidative stress. The triple knock-down mutant, abc- was also sensitive to osmotic stress mediated by high concentrations of sorbitol. Furthermore, the abc- phenotype was partially or completely rescued by AtMBF1c cDNA over-expression (abc- +c) depending on physiological and developmental conditions. AtMBF1s regulate the expression of ABR1, which is a member of the ethylene-response factor family and acts as ABA repressor. Thus, we conclude that AtMBF1 gene family may function as a regulatory component of the cross-talk node between ethylene, ABA and stress signal pathways. Furthermore, higher levels of a HSP70 mRNA and an immunoreactive HSP70 protein were detected in the abc- mutant. The participation of MBF1c as a possible negative regulator of HSP genes was discussed. | |
dc.description | Fil: Arce, Debora Pamela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina | |
dc.description | Fil: Godoy, Andrea Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina | |
dc.description | Fil: Tsuda, Kenichi. University of Minnesota; Estados Unidos | |
dc.description | Fil: Yamazaki, Ken Ichi. Hokkaido University; Japón | |
dc.description | Fil: Valle, Estela Marta. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Biología Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario; Argentina | |
dc.description | Fil: Iglesias, María José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina | |
dc.description | Fil: Di Mauro, Florencia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina | |
dc.description | Fil: Casalongue, Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Biológicas. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Biológicas; Argentina | |
dc.format | application/pdf | |
dc.format | application/pdf | |
dc.format | application/pdf | |
dc.format | application/pdf | |
dc.format | application/pdf | |
dc.format | application/pdf | |
dc.format | application/pdf | |
dc.language | eng | |
dc.publisher | Elsevier Gmbh | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0176161709003605 | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jplph.2009.09.003 | |
dc.rights | info:eu-repo/semantics/openAccess | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.subject | ARABIDOPSIS THALIANA | |
dc.subject | OXIDATIVE STRESS | |
dc.subject | TRANSCRIPTIONAL CO-ACTIVATORS | |
dc.subject | https://purl.org/becyt/ford/1.6 | |
dc.subject | https://purl.org/becyt/ford/1 | |
dc.title | The analysis of an Arabidopsis triple knock-down mutant reveals functions for MBF1 genes under oxidative stress conditions | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |