The Arabidopsis NFYA5 Transcription Factor Is Regulated Transcriptionally and Posttranscriptionally to Promote Drought Resistance
University of California, Riverside · China Agricultural University · +3 more institutions
Abstract
Nuclear factor Y (NF-Y) is a ubiquitous transcription factor composed of three distinct subunits (NF-YA, NF-YB, and NF-YC). We found that the Arabidopsis thaliana NFYA5 transcript is strongly induced by drought stress in an abscisic acid (ABA)-dependent manner. Promoter:beta-glucuronidase analyses showed that NFYA5 was highly expressed in vascular tissues and guard cells and that part of the induction by drought was transcriptional. NFYA5 contains a target site for miR169, which targets mRNAs for cleavage or translational repression. We found that miR169 was downregulated by drought stress through an ABA-dependent pathway. Analysis of the expression of miR169 precursors showed that miR169a and miR169c were…
Citation impact
- FWCI
- 43.04
- Percentile
- 100%
- References
- 52
Authors
10- WLWenxue LiCorresponding
University of California, Riverside, China Agricultural University
- YOYouko Oono
University of California, Riverside
- JZJianhua Zhu
University of California, Riverside, University of Maryland, College Park
- XHXin‐Jian He
University of California, Riverside
- JWJianmin Wu
University of California, Riverside
Topics & keywords
- Abscisic acid
- Biology
- Arabidopsis
- Transcription factor
- Gene
- Cell biology
- Gene expression
- Wild type
- Clean water and sanitation