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A novel receptor‐like kinase involved in fungal pathogen defence in Arabidopsis thaliana
Author(s) -
Ray Justin,
Yang Xin,
Kong Feng,
Guo Tingwei,
Deng Fengyan,
Clough Steven,
Ramonell Katrina
Publication year - 2018
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/jph.12711
Subject(s) - biology , powdery mildew , arabidopsis , pathogen , arabidopsis thaliana , plant immunity , innate immune system , mutant , kinase , gene , plant disease resistance , microbiology and biotechnology , pattern recognition receptor , pseudomonas syringae , immune system , genetics , botany
Plants are under constant attack from a variety of disease‐causing organisms. Lacking an adaptive immune system, plants repel pathogen attack via an array of pathogen recognition machinery. Receptor‐like kinases ( RLK s) are involved in the recognition of pathogen‐associated molecular patterns ( PAMP s) and activate resistance pathways against broad classes of pathogens. We have identified powdery mildew‐resistant kinase 1 , an Arabidopsis gene encoding an RLK that is highly induced by chitin at early time points and localizes to the plasma membrane. Knockout mutants in pmrk1 are more susceptible to both Golovinomyces cichoracearum and Plectosphaerella cucumerina . Our data show that PMRK 1 is essential in early stages of defence against fungi and provide evidence that PMRK 1 may be unique to chitin‐induced signalling pathways. The results of this study indicate that PMRK 1 is a critical component of plant innate immunity against fungal pathogens.