CBF2/DREB1C is a negative regulator of CBF1/DREB1B and CBF3/DREB1A expression and plays a central role in stress tolerance in Arabidopsis
- PMID: 15004278
- PMCID: PMC374356
- DOI: 10.1073/pnas.0303029101
CBF2/DREB1C is a negative regulator of CBF1/DREB1B and CBF3/DREB1A expression and plays a central role in stress tolerance in Arabidopsis
Abstract
CBF/DREB1 (C-repeat-binding factor/dehydration responsive element-binding factor 1) genes encode a small family of transcriptional activators that have been described as playing an important role in freezing tolerance and cold acclimation in Arabidopsis. To specify this role, we used a reverse genetic approach and identified a mutant, cbf2, in which the CBF2/DREB1C gene was disrupted. Here, we show that cbf2 plants have higher capacity to tolerate freezing than WT ones before and after cold acclimation and are more tolerant to dehydration and salt stress. All these phenotypes correlate with a stronger and more sustained expression of CBF/DREB1-regulated genes, which results from an increased expression of CBF1/DREB1B and CBF3/DREB1A in the mutant. In addition, we show that the expression of CBF1/DREB1B and CBF3/DREB1A in response to low temperature precedes that of CBF2/DREB1C. These results indicate that CBF2/DREB1C negatively regulates CBF1/DREB1B and CBF3/DREB1A, ensuring that their expression is transient and tightly controlled, which, in turn, guarantees the proper induction of downstream genes and the accurate development of Arabidopsis tolerance to freezing and related stresses.
Figures
Similar articles
-
Arabidopsis CBF1 and CBF3 have a different function than CBF2 in cold acclimation and define different gene classes in the CBF regulon.Proc Natl Acad Sci U S A. 2007 Dec 26;104(52):21002-7. doi: 10.1073/pnas.0705639105. Epub 2007 Dec 19. Proc Natl Acad Sci U S A. 2007. PMID: 18093929 Free PMC article.
-
Arabidopsis transcriptional activators CBF1, CBF2, and CBF3 have matching functional activities.Plant Mol Biol. 2004 Mar;54(5):767-81. doi: 10.1023/B:PLAN.0000040902.06881.d4. Plant Mol Biol. 2004. PMID: 15356394
-
Circadian clock-associated 1 and late elongated hypocotyl regulate expression of the C-repeat binding factor (CBF) pathway in Arabidopsis.Proc Natl Acad Sci U S A. 2011 Apr 26;108(17):7241-6. doi: 10.1073/pnas.1103741108. Epub 2011 Apr 6. Proc Natl Acad Sci U S A. 2011. PMID: 21471455 Free PMC article.
-
[Arabidopsis CBF1 in plant tolerance to low temperature and drought stresses].Yi Chuan. 2004 May;26(3):394-8. Yi Chuan. 2004. PMID: 15640027 Review. Chinese.
-
CBF-dependent signaling pathway: a key responder to low temperature stress in plants.Crit Rev Biotechnol. 2011 Jun;31(2):186-92. doi: 10.3109/07388551.2010.505910. Epub 2010 Oct 4. Crit Rev Biotechnol. 2011. PMID: 20919819 Review.
Cited by
-
MicroRNA Profiling Revealed the Mechanism of Enhanced Cold Resistance by Grafting in Melon (Cucumis melo L.).Plants (Basel). 2024 Apr 2;13(7):1016. doi: 10.3390/plants13071016. Plants (Basel). 2024. PMID: 38611545 Free PMC article.
-
Genome-Wide Analysis of C-Repeat Binding Factor Gene Family in Capsicum baccatum and Functional Exploration in Low-Temperature Response.Plants (Basel). 2024 Feb 17;13(4):549. doi: 10.3390/plants13040549. Plants (Basel). 2024. PMID: 38498531 Free PMC article.
-
Conserved plant transcriptional responses to microgravity from two consecutive spaceflight experiments.Front Plant Sci. 2024 Jan 8;14:1308713. doi: 10.3389/fpls.2023.1308713. eCollection 2023. Front Plant Sci. 2024. PMID: 38259952 Free PMC article.
-
AtMYB50 regulates root cell elongation by upregulating PECTIN METHYLESTERASE INHIBITOR 8 in Arabidopsis thaliana.PLoS One. 2023 Dec 22;18(12):e0285241. doi: 10.1371/journal.pone.0285241. eCollection 2023. PLoS One. 2023. PMID: 38134185 Free PMC article.
-
Orthogroup and phylotranscriptomic analyses identify transcription factors involved in the plant cold response: A case study of Arabidopsis BBX29.Plant Commun. 2023 Nov 13;4(6):100684. doi: 10.1016/j.xplc.2023.100684. Epub 2023 Sep 9. Plant Commun. 2023. PMID: 37674317 Free PMC article.
References
-
- Levitt, J. (1980) in Responses of Plants to Environmental Stresses (Academic, New York), 2nd. Ed.
-
- Thomashow, M. F. (1999) Annu. Rev. Plant Physiol. Plant Mol. Biol. 50, 571-599. - PubMed
-
- Gilmour, S. J., Zarka, D. G., Stockinger, E. J., Salazar, M. P., Houghton, J. M. & Thomashow, M. F. (1998) Plant J. 16, 433-442. - PubMed
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources
Other Literature Sources
Molecular Biology Databases