LYK1 — Oryza sativa Japonica

Summary

OsLYK1 (also known as OsCERK1) on rice chromosome 8 encodes a protein with a LysM receptor-like kinase domain and a Ser/Thr kinase catalytic domain. The protein is associated with galactose binding, beta-L-arabinofuranosidase activity, and numerous other molecular functions. In rice, OsLYK1 is linked to chitin elicitor signaling, peptidoglycan and chitin signaling, and defense responses, including resistance to the blast fungus Magnaporthe oryzae. It has been connected to root development, phosphorus response, symbiosis, calcium signaling, and stress tolerance. The gene is also associated with traits such as bacterial blight disease resistance, seed set percent, photosynthetic ability, drought tolerance, cold tolerance, and abscisic acid sensitivity. Localization evidence links the protein to the plasma membrane, chloroplast thylakoid membrane, and signal peptidase complex. Studies of related genes in other species connect the family to plant immunity, fungal pathogen resistance, and jasmonate-mediated defense responses.