Author

Sabrina Gauthier

Université de SherbrookeORCID 0009-0008-9471-6099Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Signature Assays, Organisms & Methods

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Approach:experimental assay· 3 Research Focus:host-pathogen & immune response· 3 Organism:plant (other)· 3 Assay:bulk RNA-seq· 2 Research Focus:cell signaling & trafficking· 1 Research Focus:gene regulatory network inference· 1 Assay:imaging· 1 Approach:statistical model· 1

Frequent Co-Authors

Charles Roussin‐LéveilléeiD· 3 shared Faye Gaudreault‐Lafleur· 3 shared Peter MoffettiD· 3 shared Alexis RoyiD· 2 shared Antoine PelletieriD· 2 shared Isabelle Laforest‐LapointeiD· 2 shared Gaële LajeunesseiD· 1 shared Gitta CoakeriD· 1 shared

Activity by Year

2025-2026 · peak 2/yr

Co-Author Collaboration Network

10 top collaborators · 38 mutual co-author links

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3 shared papersPlant Biology

Charles Roussin‐LéveilléeORCID

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3 papers

Recent·Most cited

Plant BiologybioRxivPreprintAug 28, 2026

Extracellular water withdrawal drives disease resistance in the phyllosphere

Charles Roussin‐Léveillée, Sabrina Gauthier, Yezhou Hu…·Peter Moffett

The paper shows that extracellular water status limits pathogen growth during both compatible and incompatible plant immune interactions, reframing the hypersensitive response as a desiccation mechanism.

DOI 10.64898/2026.08.27.747301

plant (other)imaging

𝕏 PostBluesky

Plant BiologybioRxivPreprintAug 26, 2026

Atypical immunity induced by extracellular water in plants

Faye Gaudreault‐Lafleur, Charles Roussin‐Léveillée, Sabrina Gauthier…·Peter Moffett

The paper investigates how plants respond to pathogen-induced extracellular water, finding that it triggers an atypical immune response mediated by salicylic acid.

DOI 10.64898/2026.08.25.745410

plant (other)bulk RNA-seq

𝕏 PostBluesky

Plant BiologyNew PhytologistPeer-reviewedSep 15, 2025

Chloroplastic ROS bursts initiate salicylic acid biosynthesis in plant immunity

Charles Roussin‐Léveillée, Méliane St‐Amand, Philippe Desbiens‐Fortin…·Peter Moffett

This study shows that chloroplast-derived reactive oxygen species (cROS) trigger salicylic acid (SA) biosynthesis, a key step in plant immunity, and that pathogen effectors disrupt this process.

13 citationstop 3%

plant (other)bulk RNA-seq

𝕏 PostBluesky