Lipidomics study for investigating the role of the Unfolded Protein Response In Arabidopsis seed filling

The Unfolded Protein Response (UPR) is a retrograde, ER-to-nucleus, signalling pathway which is conserved across kingdoms. In plants, it contributes to development, reproduction, immunity and tolerance to abiotic stress. This lipidomic dataset was produced from Arabidopsis thaliana mature seeds. Wild-type (WT) and mutant deficient for UPR actors (bzip60, ire1a and ire1b single mutants, as well as double ire1 mutants) were used as genetic backgrounds to investigate whether UPR controls lipid seed filling in Arabidopsis thaliana. Our experimental setup also allows to distinguish among differentially-overaccumulated lipids which ones are dependent on IRE1s and/or bZIP60.