TY  - JOUR
A1  - Rauf, Mamoona
A1  - Arif, Muhammad
A1  - Dortay, Hakan
A1  - Matallana-Ramirez, Lilian P.
A1  - Waters, Mark T.
A1  - Nam, Hong Gil
A1  - Lim, Pyung-Ok
A1  - Müller-Röber, Bernd
A1  - Balazadeh, Salma
T1  - ORE1 balances leaf senescence against maintenance by antagonizing G2-like-mediated transcription
JF  - EMBO reports
N2  - 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.
KW  - transcription factor
KW  - senescence
KW  - chloroplast
KW  - protein-protein interaction
Y1  - 2013
U6  - https://doi.org/10.1038/embor.2013.24
SN  - 1469-221X
VL  - 14
IS  - 4
SP  - 382
EP  - 388
PB  - Nature Publ. Group
CY  - London
ER  -