Author

Joëlle Fournier

Centre National de la Recherche ScientifiqueORCID 0000-0003-3746-8080Unclaimed ORCID profile · follow to get notified of new preprints

Biology Disciplines

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Plant Biology· 2

Signature Assays, Organisms & Methods

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Research Focus:cell signaling & trafficking· 2 Organism:plant (other)· 2 Research Focus:cell type annotation· 1 Research Focus:development & morphogenesis· 1 Approach:experimental assay· 1 Assay:fluorescence / live-cell microscopy· 1 Assay:imaging· 1 Approach:statistical model· 1

Frequent Co-Authors

Ambre GuilloryiD· 2 shared Anaïs DelersiD· 2 shared Fernanda de Carvalho‐NiebeliD· 2 shared Lisa FrancèsiD· 2 shared Anke BeckeriD· 1 shared Anne BennioniD· 1 shared Audrey Kelner· 1 shared Aurélie Le RuiD· 1 shared

Activity by Year

2024-2026 · peak 1/yr

Co-Author Collaboration Network

10 top collaborators · 36 mutual co-author links

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2 shared papersPlant Biology

Ambre GuilloryORCID

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2 papers

Recent·Most cited

Plant BiologyNew PhytologistPeer-reviewedJan 15, 2026

Rhizobial motility preference in root colonization of Medicago truncatula

Anaïs Delers, Anne Bennion, Ambre Guillory…·Anke Becker

This study investigates how rhizobia move within root infection threads using modeling, imaging, and mutant analysis, finding that flagella-independent surface translocation and rhizobactin 1021 secretion are key for colonization.

DOI 10.1111/nph.70897

plant (other)fluorescence / live-cell microscopy

𝕏 PostBluesky

Plant BiologyNature CommunicationsPeer-reviewedDec 5, 2024

Annexin and calcium-regulated priming of legume root cells for endosymbiotic infection

Ambre Guillory, Joëlle Fournier, Audrey Kelner…·Fernanda de Carvalho‐Niebel

This study identifies MtAnn1 annexin as a key regulator of calcium signaling and cytoplasmic bridge formation during legume root infection by rhizobia.

15 citations

plant (other)imaging

𝕏 PostBluesky