Transcriptional and metabolic patterns of barley for basal disease resistance and susceptibility to powdery mildew
In barley, patterns of gene expression globally change in response to attack from the biotrophic fungal pathogen Blumeria graminis f.sp. hordei. During this response about a quarter of all barley genes change expression in a statistically significant way (Schnepf et al. 2018). However, it is not understood, in how far these dramatic changes reflect immune responses that actually restrict infection, global re-allocation of metabolism, or even reprogramming of the susceptible host by fungal virulence effectors. We analyse these transcriptional patterns by comparing them in little susceptible and super-susceptible barley genotypes (differentially expressing the RACB susceptibility gene). Among others, we focus on receptor-like kinases (RLK), apoplastic cell wall biogenesis and cell cycle genes (see also Schnepf et al. 2018, Mol Plant Pathol).