ORE1 balances leaf senescence against maintenance by antagonizing G2-like-mediated transcription
- Title
- ORE1 balances leaf senescence against maintenance by antagonizing G2-like-mediated transcription
- Author(s)
- Rauf, Mamoona ; Arif, Muhammad ; Dortay, Hakan ; Matallana-Ramirez, Lilian P. ; Waters, Mark T. ; Nam, Hong Gil ; Lim, Pyung-Ok ; Mueller-Roeber, Bernd ; Balazadeh, Salma
- Issued Date
- 2013-04
- Citation
- EMBO Reports, v.14, no.4, pp.382 - 388
- Type
- Article
- Author Keywords
- transcription factor ; senescence ; chloroplast ; protein-protein interaction
- Keywords
- ARABIDOPSIS-THALIANA ; GENE-EXPRESSION ; PROTEIN INTERACTIONS ; PATHWAY
- ISSN
- 1469-221X
- Abstract
- Leaf senescence is a key physiological process in all plants. Its onset is tightly controlled by transcription factors, of which NAC factor ORE1 (ANAC092) is crucial in Arabidopsis thaliana. Enhanced expression of ORE1 triggers early senescence by controlling a downstream gene network that includes various senescence-associated genes. Here, we report that unexpectedly ORE1 interacts with the G2-like transcription factors GLK1 and GLK2, which are important for chloroplast development and maintenance, and thereby for leaf maintenance. ORE1 antagonizes GLK transcriptional activity, shifting the balance from chloroplast maintenance towards deterioration. Our finding identifies a new mechanism important for the control of senescence by ORE1. © 2013 European Molecular Biology Organization.
- Publisher
- WILEY-BLACKWELL
- Related Researcher
-
-
Lim, Pyung Ok
- Research Interests Aging and programmen cell death in plants; RNA-based regulation of leaf aging; Synthetic genetics-based aging reprogramming
-
- Files in This Item:
-
There are no files associated with this item.
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.