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Arthur Poitout

@arthur-poitout.bsky.social

Post-doc in plant science - interested in plant signaling, plant nutrition and cell biology

2 Posts58 Follower107 Folgt
Arthur Poitout@arthur-poitout.bsky.social · 2w ago

🌱 Summer reading? Here's our recent @pnas.org ! doi.org/10.1073/pnas... We reveal how plasma membrane nanodomains generate localized H₂O₂ nanoenvironments during osmotic stress. The ROP6-RBOH-PIP2;7 module creates a feedforward loop that amplifies ROS signaling. #PlantBiology #CellBiology #ROS

Nanoscale regulation of ROS signaling at the plasma membrane tunes the plant response to osmotic stress | PNAS

The spatiotemporal organization of proteins and lipids within membranes is crucial for ensuring proper cellular signaling. While the segregation of...

doi.org

COST Action PlantWallK@plantwallk.org · 2w ago

📢 Two postdoc positions available in @mc-caillaud.bsky.social's group (RDP lab, ENS de Lyon), part of an ERC Consolidator. Project: how plant cells orient their division, combining cell biology, molecular genetics, and mechanical modelling. 📅 Deadline: 1 Oct 26 | Start: Nov 26 onwards Details 🧵👇

Recruitment flyer for two postdoc-funded positions in Marie-Cécile Caillaud's group (RDP laboratory, ENS de Lyon, France). Across the top run six scientific images: a line drawing of an Arabidopsis seedling with roots; a 3D digital reconstruction of a shoot apical meristem with orange and purple sectors marking cell lineages; a confocal microscopy image of plant tissue with green cell outlines and red/orange fluorescent nuclei; two paired 3D cell models in orange/green and yellow/purple showing division plane geometry; and a fluorescence microscopy image of a dividing cell with yellow microtubule-like structures and cyan nuclei on a dark background. Below, the title reads "Two Postdoc-funded positions" with an ERC logo, followed by "Deadline: 1st of Oct 2026" and "Starting date: Nov 2026 and onwards" in a bordered box. The body text is organised into sections: PROJECT (describing research into how plant cells orient their division, combining cell biology, molecular genetics, and multiscale mechanical modelling, with a link to the team website), CANDIDATE (looking for motivated candidates with a strong publication record, prior expertise in plant cell biology or biophysics as a plus, working language English), ENVIRONMENT (describing the ERC Consolidator project, the RDP laboratory hosted at ENS de Lyon, an international and gender-balanced working environment, and the city of Lyon), and RECENT PUBLICATIONS (three pinned references: Goldy et al. 2026 in Science Advances, Gascon et al. 2025 in Current Biology, and Lebecq et al. 2023 in Science Advances). An envelope icon box at the bottom right gives instructions to send a single PDF (cover letter, short summary of previous research, CV with publications, and contact details for two to three referees) to marie-cecile.caillaud@ens-lyon.fr.
Alex Martiniere@alexmartiniere.bsky.social · last yr.

Rho of Plant are signalling HUB and GEF behave as signal specific switches. We found that GEF14 specicaly activates ROP6 during osmotic signal. by 2 excellent young researcher L.Gorgues and M.Smokvarska One more great collaboration with @yvonjaillais.bsky.social www.embopress.org/doi/full/10....

GEF14 acts as a specific activator of the plant osmotic signaling pathway by controlling ROP6 nanodomain formation | EMBO reports

imageimageRho Of Plant 6 (ROP6) acts as hub for several independent signaling processes and relies on stimuli-dependent membrane nanodomain formation. This study reveals that the GEF isoform GEF14 is ...

embopress.org

CNRS Biologie@cnrsbiologie.bsky.social · last yr.

Une découverte majeure en biologie végétale ! 🌱 ✨ @yohannboutte.bsky.social et ses collaborateurs ont identifié un nouveau compartiment cellulaire chez les plantes, inconnu jusqu’ici ! Une avancée qui ouvre la voie à de nouvelles recherches sur le développement des plantes ! 🌿

Découverte d’un nouveau compartiment cellulaire chez les plantes

L’origine et l’évolution des compartiments intracellulaires des cellules eucaryotes, c’est-à-dire celles qui possèdent un noyau, restent une énigme.

insb.cnrs.fr

Plant & Cell Physiology@plantcellphysiol.bsky.social · 2y ago

In case you missed it…🔎 Kawade et al. explain the functional roles of Serine, Threonine, Arginine & γ-aminobutyric acid (GABA) in plant growth & development🌱 Review article: doi.org/10.1093/pcp/... This article forms part of the special issue on #PlantMetabolites academic.oup.com/pcp/issue/64...

The Roles of Functional Amino Acids in Plant Growth and Development

Abstract. Plants incorporate acquired carbon and nitrogen into amino acid metabolism, whereby the building blocks of proteins and the precursors of various

doi.org

Arthur Poitout@arthur-poitout.bsky.social · 2y ago

😊🌱 If you are interested in/want a little update on plasma membrane nanodomains in plants, our review is just out in @newphyt.bsky.social. We address their role in cellular functions and signaling. doi.org/10.1111/nph....

Membrane nanodomains to shape plant cellular functions and signaling

Plasma membrane (PM) nanodomains have emerged as pivotal elements in the regulation of plant cellular functions and signal transduction. These nanoscale membrane regions, enriched in specific lipids ...

doi.org