show Abstracthide AbstractAn important feature of plant stress response comprises production of several bioactive peptides. Many eukaryotic RNAs have been considered non-coding as they contain only short open reading frames (sORFs). However, there has been increasing evidence for the translation of these sORFs into bioactive peptides. Yet only a few small peptides are annotated in the model organism Arabidopsis thaliana. Our research focuses on the discovery of novel peptides to enrich the existing inventory of bioactive peptides in Arabidopsis thaliana.