Dual function of an Arabidopsis transcription factor DREB2A in water-stress-responsive and heat-stress-responsive gene expression
Japan International Research Center for Agricultural Sciences · The University of Tokyo · +2 more institutions
Abstract
Transcription factor DREB2A interacts with a cis-acting dehydration-responsive element (DRE) sequence and activates expression of downstream genes involved in drought- and salt-stress response in Arabidopsis thaliana. Intact DREB2A expression does not activate downstream genes under normal growth conditions. A negative regulatory domain exists in the central region of DREB2A, and deletion of this region transforms DREB2A to a constitutive active form (DREB2A CA). We carried out microarray analysis of transgenic Arabidopsis-overexpressing DREB2A CA and found that the overexpression of DREB2A CA induces not only drought- and salt-responsive genes but also heat-shock (HS)-related genes. Moreover, we found that…
Citation impact
- FWCI
- 26.21
- Percentile
- 100%
- References
- 39
Authors
6- YSYoh SakumaCorresponding
Japan International Research Center for Agricultural Sciences, The University of Tokyo
- KMKyonoshin Maruyama
Japan International Research Center for Agricultural Sciences
- FQFeng Qin
Japan International Research Center for Agricultural Sciences
- YOYuriko Osakabe
Japan International Research Center for Agricultural Sciences, The University of Tokyo
- KSKazuo Shinozaki
Japan Science and Technology Agency, RIKEN Center for Sustainable Resource Science
Topics & keywords
- Biology
- Arabidopsis
- Gene
- Transcription factor
- Gene expression
- Cell biology
- Arabidopsis thaliana
- Regulation of gene expression
- Clean water and sanitation