Physical association of pattern-triggered immunity (PTI) and effector-triggered immunity (ETI) immune receptors in Arabidopsis

Yiping Qi, Kenichi Tsuda, Jane Glazebrook, Fumiaki Katagiri

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

Plants possess two distinct types of immune receptor. The first type, pattern recognition receptors (PRRs), recognizes microbe-associated molecular patterns (MAMPs) and initiates pattern-triggered immunity (PTI) on recognition. FLS2 is a PRR, which recognizes a part of bacterial flagellin. The second type, resistance (R) proteins, recognizes pathogen effectors and initiates effector-triggered immunity (ETI) on recognition. RPM1, RPS2 and RPS5 are R proteins. Here, we provide evidence that FLS2 is physically associated with all three R proteins. Our findings suggest that signalling interactions occur between PTI and ETI at very early stages and/or that FLS2 forms a PTI signalling complex, some components of which are guarded by R proteins.

Original languageEnglish (US)
Pages (from-to)702-708
Number of pages7
JournalMolecular Plant Pathology
Volume12
Issue number7
DOIs
StatePublished - Sep 2011

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