Convergent evolution of plant pattern recognition receptors sensing cysteine-rich patterns from three microbial kingdoms

Yuankun Yang (), Christina E. Steidele, Clemens Rössner, Birgit Löffelhardt, Dagmar Kolb, Thomas Leisen, Weiguo Zhang, Christina Ludwig, Georg Felix, Michael F. Seidl, Annette Becker, Thorsten Nürnberger, Matthias Hahn, Bertolt Gust, Harald Gross, Ralph Hückelhoven and Andrea A. Gust ()
Additional contact information
Yuankun Yang: Eberhard-Karls-University of Tübingen
Christina E. Steidele: Eberhard-Karls-University of Tübingen
Clemens Rössner: Justus-Liebig-University Gießen
Birgit Löffelhardt: Eberhard-Karls-University of Tübingen
Dagmar Kolb: Eberhard-Karls-University of Tübingen
Thomas Leisen: Technical University of Kaiserslautern
Weiguo Zhang: Eberhard-Karls-University of Tübingen
Christina Ludwig: Technische Universität München
Georg Felix: Eberhard-Karls-University of Tübingen
Michael F. Seidl: Utrecht University
Annette Becker: Justus-Liebig-University Gießen
Thorsten Nürnberger: Eberhard-Karls-University of Tübingen
Matthias Hahn: Technical University of Kaiserslautern
Bertolt Gust: Eberhard-Karls-University of Tübingen
Harald Gross: Eberhard-Karls-University of Tübingen
Ralph Hückelhoven: Technische Universität München
Andrea A. Gust: Eberhard-Karls-University of Tübingen

Nature Communications, 2023, vol. 14, issue 1, 1-12

Abstract: Abstract The Arabidopsis thaliana Receptor-Like Protein RLP30 contributes to immunity against the fungal pathogen Sclerotinia sclerotiorum. Here we identify the RLP30-ligand as a small cysteine-rich protein (SCP) that occurs in many fungi and oomycetes and is also recognized by the Nicotiana benthamiana RLP RE02. However, RLP30 and RE02 share little sequence similarity and respond to different parts of the native/folded protein. Moreover, some Brassicaceae other than Arabidopsis also respond to a linear SCP peptide instead of the folded protein, suggesting that SCP is an eminent immune target that led to the convergent evolution of distinct immune receptors in plants. Surprisingly, RLP30 shows a second ligand specificity for a SCP-nonhomologous protein secreted by bacterial Pseudomonads. RLP30 expression in N. tabacum results in quantitatively lower susceptibility to bacterial, fungal and oomycete pathogens, thus demonstrating that detection of immunogenic patterns by Arabidopsis RLP30 is involved in defense against pathogens from three microbial kingdoms.

Date: 2023
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DOI: 10.1038/s41467-023-39208-8

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