TRR 175 The Green Hub - Central Coordinator of Acclimation in Plants

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Identification of novel components of the OGE retrograde and acclimation signalling pathways

To elaborate a global organellar gene expression (OGE) retrograde network and to elucidate its inter-connections with acclimation pathways, we intend to follow three routes: (i) Analysis of induced tran-sient stimuli and transcriptomes of published data sets along with biochemical approaches to identify primary target genes. (ii) Screen for suppressors of the prors1-2 mutation followed by SNP ratio mapping to identify further components of OGE signalling. (iii) Investigation of transgenic lines of the newly identified components under defined cold, heat and high-light conditions to reveal how OGE signalling contributes to acclimation.