A bacterial tyrosine phosphatase inhibits plant pattern recognition receptor activation

Alberto P. Macho, Benjamin Schwessinger, Vardis Ntoukakis, Alexandre Brutus, Cécile Segonzac, Sonali Roy, Yasuhiro Kadota, Man Ho Oh, Jan Sklenar, Paul Derbyshire, Rosa Lozano-Durań, Frederikke Gro Malinovsky, Jacqueline Monaghan, Frank L. Menke, Steven C. Huber, Sheng Yang He, Cyril Zipfel

Research output: Contribution to journalArticlepeer-review


Innate immunity relies on the perception of pathogen-associated molecular patterns (PAMPs) by pattern-recognition receptors (PRRs) located on the host cell's surface. Many plant PRRs are kinases. Here, we report that the Arabidopsis receptor kinase EF-TU RECEPTOR (EFR), which perceives the elf18 peptide derived from bacterial elongation factor Tu, is activated upon ligand binding by phosphorylation on its tyrosine residues. Phosphorylation of a single tyrosine residue, Y836, is required for activation of EFR and downstream immunity to the phytopathogenic bacterium Pseudomonas syringae. A tyrosine phosphatase, HopAO1, secreted by P. syringae, reduces EFR phosphorylation and prevents subsequent immune responses. Thus, host and pathogen compete to take control of PRR tyrosine phosphorylation used to initiate antibacterial immunity.

Original languageEnglish (US)
Pages (from-to)1509-1512
Number of pages4
Issue number6178
StatePublished - 2014
Externally publishedYes

ASJC Scopus subject areas

  • General


Dive into the research topics of 'A bacterial tyrosine phosphatase inhibits plant pattern recognition receptor activation'. Together they form a unique fingerprint.

Cite this