An oomycete NLP cytolysin forms transient small pores in lipid membranes

Katja Pirc, Luke A. Clifton, Neval Yilmaz, Andrea Saltalamacchia, Mojca Mally, Tina Snoj, Nada Žnidaršič, Marija Srnko, Jure Borišek, Petteri Parkkila, Isabell Albert, Marjetka Podobnik, Keiji Numata, Thorsten Nürnberger, Tapani Viitala, Jure Derganc, Alessandra Magistrato, Jeremy H. Lakey, Gregor Anderluh*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Abstract

Microbial plant pathogens secrete a range of effector proteins that damage host plants and consequently constrain global food production. Necrosis and ethylene-inducing peptide 1–like proteins (NLPs) are produced by numerous phytopathogenic microbes that cause important crop diseases. Many NLPs are cytolytic, causing cell death and tissue necrosis by disrupting the plant plasma membrane. Here, we reveal the unique molecular mechanism underlying the membrane damage induced by the cytotoxic model NLP. This membrane disruption is a multistep process that includes electrostatic-driven, plant-specific lipid recognition, shallow membrane binding, protein aggregation, and transient pore formation. The NLP-induced damage is not caused by membrane reorganization or large-scale defects but by small membrane ruptures. This distinct mechanism of lipid membrane disruption is highly adapted to effectively damage plant cells.

Original languageEnglish
Article numbereabj9406
JournalScience Advances
Volume8
Issue number10
DOIs
Publication statusPublished - Mar 2022
Externally publishedYes
MoE publication typeA1 Journal article-refereed

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