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Arthur Poitout

@arthur-poitout.bsky.social
63 followers 112 following 2 posts

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

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Reposted by Arthur Poitout
Gab Krouk @gabkrouk.bsky.social · 02/10/2026
#GeneCloud is back 🌱 Our 2015 tool (Mol Plant) that finds the words over-represented in the descriptions of a gene list, rebuilt with @claudeai : 2026 TAIR annotation, exact hypergeometric test + FDR, runs in your browser. 👉 gabkrouk.github.io/genecloud/ #PlantScience
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CNRS Biologie @cnrsbiologie.bsky.social · 19/08/2026
#ResultatScientifique🔎| 🧠 Les plantes savent localiser leur réponse au stress : de minuscules zones de leur membrane concentrent les signaux pour mieux s’adapter🌱 ▶️ buff.ly/QWrGaNA ✍️ Alexandre Martinière 📕 @pnas.org
insb.cnrs.fr
Face au stress, les plantes forment des nanodomaines membranaires pour organiser leur réponse
Comment une ce
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Louise Fougere @louisefougere.bsky.social · 14/08/2026
Super happy to share with Magali Grison, @yohannboutte.bsky.social and Christel Poujol this amazing method of super-resolution in plant-cell microscopy 🤗 always further ! always more extraordinary !🔬 🪴 @lbm-bordeaux.bsky.social @bic-bordeaux.bsky.social @univbordeaux.bsky.social
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Arthur Poitout @arthur-poitout.bsky.social · 21/07/2026
🌱 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
doi.org
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...
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COST Action PlantWallK @plantwallk.org · 20/07/2026
📢 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.
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Alex Martiniere @alexmartiniere.bsky.social · 23/06/2026
Our paper is out !!! NADPH oxidases and aquaporins within membrane nanodomains form a functional unit for ROS signaling. Great work by arthur-poitout.bsky.social and amazing collaborator jbfiche.bsky.social, Jose Ugalde, A Meyer yvonjaillais.bsky.social! www.pnas.org/doi/10.1073/pnas.2529740123
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CNRS Biologie @cnrsbiologie.bsky.social · 20/04/2026
🏅 Nouvelle distinction @emmanuellebayer.bsky.social reçoit la médaille d’argent du @cnrs.fr pour ses travaux en biologie végétale. Comprendre quand une cellule doit s'ouvrir, se fermer, laisser passer ou se protéger : une question au-delà de la biologie 🔬 À découvrir : buff.ly/wtLXvgG
buff.ly
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Alex Martiniere @alexmartiniere.bsky.social · 23/01/2026
Happy to share this preprint, we describe how the membrane could shape the ROS nanoenvironment in plant responses to osmotic signals. Led by @arthur-poitout.bsky.social and amazing colleagues @yvonjaillais.bsky.social , @jbfiche.bsky.social , A Meyer, and J Ugalde. www.biorxiv.org/content/10.6...
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Yohann Boutté @yohannboutte.bsky.social · 10/11/2025
Excited to share our pre-print on how Sphingolipid-driven interleaflet coupling orchestrates ROP6 recruitment to nanodomains upon auxin. Great job from my PhD student Matheus Montrazi, @arthur-poitout.bsky.social, @alexmartiniere.bsky.social, @yvonjaillais.bsky.social www.biorxiv.org/content/10.1...
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Benoit Lacombe @lacombeb.bsky.social · 21/05/2025
Our last review published in @annualreviews.bsky.social of plant biology @inrae-france.bsky.social @cnrs.fr @cnrsbiologie.bsky.social @umontpellier.bsky.social @hatem-rouached.bsky.social www.annualreviews.org/content/jour...
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Amber Capron @acapron.bsky.social · 22/03/2025
USDA’s National Plant Germplasm System scientists have systematically gathered and maintained the agricultural plant species that undergird our food system. Just 0.000008 percent of the federal budget, they safeguard our food system worth ~$1.5 trillion. Now at risk after attack by DOGE.
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Alex Martiniere @alexmartiniere.bsky.social · 18/03/2025
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....
embopress.org
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 ...
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CNRS Biologie @cnrsbiologie.bsky.social · 27/02/2025
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 ! 🌿
insb.cnrs.fr
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.
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Plant & Cell Physiology @plantcellphysiol.bsky.social · 15/01/2025
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...
doi.org
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
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Arthur Poitout @arthur-poitout.bsky.social · 26/12/2024
😊🌱 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....
doi.org
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 ...
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Laboratoire des Interactions Plantes, Microbes et Environnement @lipme-toulouse.bsky.social · 12/12/2024
[#Job] 📢 3 post-doc positions are available in the #Ecogen team on the effects of host and microbiota genetics on pathogen-pathogen interactions 🔗 emploi.cnrs.fr/Offres/CDD/U... 🔗 emploi.cnrs.fr/Offres/CDD/U... 🔗 emploi.cnrs.fr/Offres/CDD/U... ⏩ 3 year contract period ⏩ Apply until 18 January 2025!
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