Mechanisms of CERK1 co-receptor-mediated plant defense and symbiotic responses

KAKEN

About This Project

Japan Grant Number
JP18H02208 (JGN)
Funding Program
Grants-in-Aid for Scientific Research
Funding Organization
Japan Society for the Promotion of Science

Kakenhi Information

Project/Area Number
18H02208
Research Category
Grant-in-Aid for Scientific Research (B)
Allocation Type
  • Single-year Grants
Review Section / Research Field
  • Basic Section 39040:Plant protection science-related
Research Institution
  • Meiji University
Project Period (FY)
2018-04-01 〜 2022-03-31
Project Status
Completed
Budget Amount*help
13,780,000 Yen (Direct Cost: 10,600,000 Yen Indirect Cost: 3,180,000 Yen)

Research Abstract

CERK1 is a LysM receptor kinase involved in the initiation of defense responses derived from carbohydrate ligand of bacterial and fungal cell walls. OsCERK1 is a bifunctional receptor, serving not only for the chitin/LPS-triggered defense response but also for arbuscular mycorrhizal (AM) symbiosis in rice, although the regulatory mechanism of these contradictory system is still unknown. In this study, we identified OsCERK2, which is structurally and functionally similar to OsCERK1. We found that the extra/intracellular region of CERK1 plays an important rule for the receptor complex formation to initiate the defense and symbiosis responses. We also indicated that several phosphorylation sites of AtCERK1 have critical function for the regulation of activation and downstream signaling.

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