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Author Jiang Y., Chen X., Ding X., Wang Y., Chen Q., Song W.Y.
Title The XA21 binding protein XB25 is required for maintaining XA21-mediated disease resistance.
Plant genomes encode a large number of proteins that potentially function as immune receptors in the defense against pathogen invasion. As a well-characterized receptor kinase consisting of 23 tandem leucine-rich repeats, a transmembrane domain and a serine/threonine kinase, the rice (Oryza sativa) protein XA21 confers resistance to a broad spectrum of Xanthomonas oryzae pv.ツoryzae (Xoo) races that cause bacterial blight disease. We report here that XA21 binding protein 25 (XB25) belongs to the plant-specific ankyrin-repeat (PANK) family. XB25 physically interacts, in vitro, with the transmembrane domain of XA21 through its N-terminal binding to transmembrane and positively charged domain (BTMP) repeats. In addition, XB25 associates with XA21 in planta. The downregulation of Xb25 results in reduced levels of XA21 and compromised XA21-mediated disease resistance at the adult stage. Moreover, the accumulation of XB25 is induced by Xoo infection. Taken together, these results indicate that XB25 is required for maintaining XA21-mediated disease resistance.
Journal Plant J.
Country USA
Volume 73(5)
Pages 814-23
Year 2013
PubMed ID 23206229
PubMed Central ID -
DOI 10.1111/tpj.12076
Gene XA21 _ _ _
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
Stages in Each Organ
- Muant Lines (Gene)
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -