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Alex Martiniere

@alexmartiniere.bsky.social

Plant cell biologist, PI @ IPSIM, Montpellier France

8 Posts134 Follower126 Folgt
The EMBO Journal@embojournal.org · 7d ago

Role of membrane-organizing SPFH proteins in plants: @hannah-web.bsky.social, Alexandra Ehinger, @birgitkemmerling.bsky.social et al define how Arabidopsis HIR2 forms higher-order assemblies and organizes receptor signaling domains link.springer.com/article/10.1...

The Arabidopsis SPFH protein HIR2 modulates receptor signaling and plasma membrane organization - The EMBO Journal

Plant plasma membrane proteins are organized into distinct domains; however, the principles that govern this spatial organization are not fully understood. HYPERSENSITIVE-INDUCED REACTION (HIR) protei...

link.springer.com

Nature Cell Biology@natcellbio.nature.com · last wk.

☕ @takinishimura.bsky.social et al. develop a platform named cell surface #liposome binding (CLiB), which allows the high-throughput monitoring of protein – #lipid interactions and can be used to design lipid-binding probes. 👉https://rdcu.be/fwgUI www.nature.com/articles/s41...

Cell surface liposome binding (CLiB) allows lipid-binding probe engineering via high-throughput screening - Nature Cell Biology

Nishimura et al. develop a platform named cell surface liposome binding (CLiB), which allows the high-throughput monitoring of protein–lipid interactions and can be used to design lipid-binding probes...

nature.com

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.
Luke Lavis@rhodamine110.bsky.social · 3w ago

Excited to see this collaboration now in print. Dye chemistry meets AI-designed proteins. Three small, orthogonal tags; lifetime modulation; split versions. Request the free dyes at dyes.janelia.org www.science.org/doi/10.1126/...

De novo design of orthogonal far-red, orange, and green fluorophore-binding proteins for multiplexed imaging

Fluorescent proteins and small-molecule dyes offer complementary advantages for biological imaging: proteins are amenable to genetic tagging, whereas dyes provide superior brightness and photostabilit...

science.org

Plant Science Spotlight@plant-sci.bsky.social · 4w ago

🌱🧬 Peptide hormones shape root system architecture via receptor kinases, calcium fluxes, ROS, and MAPK cascades. They integrate internal and external cues to fine-tune root growth Prospects for improving nutrient efficiency and stress resistance #plantscience www.cell.com/plant-commun...

Peptide hormones in shaping root system architecture and adaptation: Current advances and translational perspectives

Short summary: Peptide hormones are key signaling molecules that regulate plant root system architecture (RSA) by integrating developmental and environmental cues through receptor kinase–mediated sign...

cell.com

Fabien Ferchaud@fabien-ferchaud.bsky.social · last mo.

Suite à notre article paru récemment dans @commsearth.nature.com, nous avons publié une version pour le grand public et en français avec @france.theconversation.com. Accès libre ➡️ doi.org/10.64628/AAK... @umr-ecosols.bsky.social @inrae-france.bsky.social

Faut-il vraiment arrêter de labourer les champs ?

Longtemps indissociables de l’agriculture même, le labour et les activités de travail du sol sont aujourd’hui remis en question.

doi.org

Institute of Experimental Botany of the CAS@iebcas.bsky.social · last mo.

#newpaper: CYSTEINE-RICH RLK2 regulates development via callose synthase-dependent symplastic transport in Arabidopsis @academic.oup.com: cell-to-cell transport; sugar metabolism; beta-glucan; carbohydrate accumulation; symplastic loading; intercellular channels; partitioning doi.org/10.1093/plph...

CYSTEINE-RICH RLK2 regulates development via callose synthase-dependent symplastic transport in Arabidopsis

Abstract. CYSTEINE-RICH RECEPTOR-LIKE PROTEIN KINASEs (CRKs) play an important role in plant development and stress responses. One of the best described me

doi.org

Stéphanie Robert@srobertgroup.bsky.social · last mo.

Such an honor to have been elected as an EMBO member and I am looking forward to contribute to the EMBO community! I got spoiled by my fantastic group today! @embo.org

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Umeå Plant Science Centre@umeaplantsciencecentre.se · last mo.

🧪🌾NEWS - Congratulations to @srobertgroup.bsky.social on being elected an EMBO Member!🎉 "I want to share this recognition with the many fantastic members of my research group at UPSC over the years," says Stéphanie Robert. Read more: www.upsc.se/about-upsc/n... #EMBOMembers2026 @embo.org

Portrait of a woman with long brown hair and black clothes who is sitting next to a microscope
Julien Gossa@juliengossa.cpesr.fr · last mo.

[ #VeilleESR #LPPR ] Durcissement des règles d'attribution pour l'appel à projets générique ANR. Notamment : réduction du nombre de dépôts et augmentation du délais de carence. L'argumentaire est : plus les scientifiques ont besoin de l'ANR, moins il faut que les scientifiques sollicitent l'ANR.

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The Plant Journal@theplantjournal.bsky.social · last mo.

🔎𝐏𝐞𝐫𝐬𝐩𝐞𝐜𝐭𝐢𝐯𝐞 🌱 Plant metabolism depends not only on what organelles do, but also on where they are Find it here👉 doi.org/10.1111/tpj.70987 ✍️ AR Fernie, G Decros, J Multhoff, J Sippel, JO Niemeier, P Barreto, A Sampathkumar, U Sonnewald, and M Schwarzländer

PERSPECTIVE: organelle positioning as a principle of metabolic regulation and stress tolerance

Understanding how plant cells coordinate metabolism remains a major challenge, particularly at the level of intracellular organization. This perspective proposes that dynamic organelle positioning ac...

doi.org

Laboratoire de Biogenèse Membranaire@lbm-bordeaux.bsky.social · last mo.

Congratulations to Gwennogan Dubois, Marija Smokvarska, and Jessica Perez Sancho, who were honored at the French Academy of Sciences during the “Grandes Avancées Françaises en Biologie” event! 👏 A source of great pride for the lab, alongside their research directors Emmanuelle Bayer & Yvon Jaillais.

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HAGN LAB@hagnlab.bsky.social · 3mo ago

New paper on structural basis of #plant infection by fungal #pathogens via a small #GTPase - effector protein interaction by #NMR, #X-ray crystallography, biophysical methods and in planta experiments. @tum.de @helmholtzmunich.bsky.social @uniulm.bsky.social www.nature.com/articles/s42...

Nucleotide-dependent switching and RIPb effector recognition of the barley susceptibility factor RACB - Communications Biology

High-resolution structures of the plant small GTPase RACB show how switching between inactive and active states enables RIPb effector binding, providing a physical link between the cell membrane and m...

nature.com

Plant Science Spotlight@plant-sci.bsky.social · 2mo ago

🌿🌡️FERONIA organizes sterol dependent nanoclusters as a thermal switch. Moderate heat activates FER via RALF34, recruiting stress signaling Extreme heat triggers disassembly to prevent maladaptive responses #plantscience @science.org @abioticstress.bsky.social www.science.org/doi/10.1126/...

FERONIA orchestrates plasma membrane nanoclusters for plant thermotolerance

Climate warming poses increasing thermal challenges to plants, yet how plasma membrane biophysics contributes to heat adaptation remains poorly understood. In this work, we showed that the malectin-li...

science.org