The chloroplast antioxidant system as a priming hub in plant stress management
(C04)
Subject Area
Plant Physiology
Term
from 2012 to 2021
Project identifier
Deutsche Forschungsgemeinschaft (DFG) - Project number 190578797
A single, 24 h long 4 °C cold event primes stress response regulation in Arabidopsis thaliana for several days. The priming effect on abiotic activation of genes of the core stress response cluster and the susceptibility to Pseudomonas syringae are mediated by the chloroplast antioxidant system and is partly specific to transcriptional regulation of thylakoid-bound ascorbate peroxidase (tAPX) activity. We will differentiate the target spectra of tAPX- and not-tAPX-specifically regulated cold priming and investigate the mechanisms of the tAPX-specific control and how cold priming affects the connectivity between plastid signalling and pathogen defending, plasmamembrane-localised ROS production.
DFG Programme
Collaborative Research Centres
