Flg22 induces CERK1 phosphorylation

Plant cells employ cell-surface receptors to detect pathogens and launch immunity.Here we show that flg22 can induce a receptor-like kinase CERK1 phosphorylation at juxtamembrane region (JM). However, Genome-wide transcriptional reprogramming and other flg22 responses implied that CERK1 does not directly mediate flg22 signaling. Surprisingly, CERK1 JM phosphorylation can promote chitin responses and fungal resistance for plants and genome-wide transcriptional reprogramming also suggested no sign of constitutive immunity caused by this. Genome-wide survey of the wild type and cerk1 mutant in response to flg22 or transgenic complementation plants of CERK1 and CERK1 mutations