Role of LysM receptors in chitin-triggered plant innate immunity
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Updated: May 16, 2026

Pattern-Triggered Oxidative Burst and Seedling Growth Inhibition Assays in Arabidopsis thaliana
Published on: May 21, 2019
Kiwamu Tanaka1, Cuong T Nguyen1, Yan Liang1
1Divisions of Plant Sciences and Biochemistry; National Center for Soybean Biotechnology; Christopher S. Bond Life Sciences Center; University of Missouri; Columbia, MO USA.
Abstract:
Recent research findings clearly indicate that lysin motif (LysM)-containing cell surface receptors are involved in the recognition of specific oligosaccharide elicitors (chitin and peptidoglycan), which trigger an innate immunity response in plants. These receptors are either LysM-containing receptor-like kinases (LYKs) or LysM-containing receptor proteins (LYPs). In Arabidopsis, five LYKs (AtCERK1/AtLYK1 and AtLYK2-5) and three LYPs (AtLYP1-3) are likely expressed on the plasma membrane. In this review, we summarize recent research results on the role of these receptors in plant innate immunity, including the recent structural characterization of AtCERK1 and composition of the various receptor complexes in Arabidopsis.
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