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An OsCEBiP/OsCERK1-OsRacGEF1-OsRac1 Module Is an Essential Early Component of Chitin-Induced Rice Immunity
Authors:Akira Akamatsu  Hann Lin Wong  Masayuki Fujiwara  Jun Okuda  Keita Nishide  Kazumi Uno  Keiko Imai  Kenji Umemura  Tsutomu Kawasaki  Yoji Kawano  Ko Shimamoto
Institution:1. Laboratory of Plant Molecular Genetics, Graduate School of Biological Sciences, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma, Nara 630-0192, Japan;2. Agricultural and Veterinary Research Laboratories, Meiji Seika Kaisha, Kohoku-ku, Yokohama 222–8567, Japan
Abstract:
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  • Highlights? Chitin induces rapid activation of the rice small GTPase OsRac1 at the plasma membrane ? OsRacGEF1 interacts with and acts as a guanine nucleotide exchange factor for OsRac1 ? In response to chitin, OsRacGEF1 is activated via phosphorylation by OsCERK1 ? OsRacGEF1 is required for chitin-driven immunity and resistance to rice blast fungus
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