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Jean-Marie Frachisse

@jm-frachisse.bsky.social
118 followers 206 following 10 posts

I am Biologist, studing plant mechanoperception through mechanosensitive channel. Posts are my own Plant scientist #CNRS, @I2BCParisSaclay www.i2bc.paris-saclay.fr/equipe-int…

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Reposted by Jean-Marie Frachisse
The Conversation France @france.theconversation.com · 30/09/2026
Comment les arbres ajustent activement leur posture pour rester le plus droits possible
dlvr.it
Comment les arbres ajustent activement leur posture pour rester le plus droits possible
Les arbres perçoivent leur courbure et la rectifient activement grâce à un bois spécial dit « bois de tension », de manière analogue au contrôle postural des animaux.
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Greg Vert @plantubiquitin.bsky.social · 01/10/2026
Hydrophylic loop of PIN2 undergoes homotypic interaction via a conserved β-sheet motif to directly modulate clustering and dynamics www.pnas.org/doi/10.1073/...
pnas.org
A conserved β-sheet motif mediates PIN2 hydrophilic loop–loop interactions to regulate PIN2 dynamics | PNAS
PIN-FORMED (PIN) auxin transporters are essential for plant development, relying on asymmetric localization at the plasma membrane. While the centr...
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Reposted by Jean-Marie Frachisse
Ed Rybicki 🇿🇲🇿🇦🇬🇧🍷🚀 @edrybicki.bsky.social · 01/07/2026
I like moss...
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ARTE @artefr.bsky.social · 02/07/2026
11000m Le point le plus profond de la Terre. À cette profondeur, la pression est d'une tonne sur la surface d'un pouce. Même ici, l'homme a laissé sa trace : les explorateurs y ont découvert... une bouteille de bière et du plastique.
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Liz Haswell @ehaswell.bsky.social · 17/06/2026
HHMI + Anthropic = scary as hell
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Jean-Marie Frachisse @jm-frachisse.bsky.social · 14/06/2026
An introduction to plant biomechanics kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...
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Franciska de Vries 🟥 @frantecol.bsky.social · 06/06/2026
There is a LOT of attention for soil health, especially in agricultural systems, but there is very little awareness of the value of intact, undisturbed, native soils. Here, I argue that applying the old-growth concept to soils will help their protection. www.sciencedirect.com/science/arti...
Figure 1 from the paper, with on the left a disturbed soil, and on the right an undisturbed, old-growth soil.
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Jean-Marie Frachisse @jm-frachisse.bsky.social · 08/05/2026
Special thank to the first auteur Yannick Guerringue who did a great job for his PhD on MS channels in @i2bcparissaclay.bsky.social
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Ulrich Hammes @uhammes.bsky.social · 08/04/2026
This is nothing less than a breakthrough. What a phantastic paper. So happy to see it out after five years. The influence of electrical charge on plasmodesma conductivity | PNAS www.pnas.org/doi/10.1073/...
pnas.org
The influence of electrical charge on plasmodesma conductivity | PNAS
Most plant tissues are symplasms in which cells are connected by plasmodesmata, membrane-lined cytosplasmic bridges that enable diffusive and/or ad...
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Jean-Marie Frachisse @jm-frachisse.bsky.social · 22/01/2026
So happy to see @jeanhegland.bsky.social 's "Le temps d’après" wonderfully translated in French by Josette Chicheportiche, on the shelves of FNAC stores as a "coup de cœur❤️". Fingers crossed that the original version, "Here in this next new now," will be available soon.
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Reposted by Jean-Marie Frachisse
Greg Jericho @grogsgamut.bsky.social · 18/01/2026
Australians are deciding USA is not a place to visit… oddly they still are going to Canada. Almost like there is something specific about the US.. #ThePoint thepoint.com.au/off-the-char...
Index Australians travelling to the USA and Canada - showing while travel to the US is falling it is rising to Canada
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Liz Haswell @ehaswell.bsky.social · 10/01/2026
In the latest on Unprofessoring, I argue that I--and we--need ways to talk about the sensations of thinking and learning! unprofessoring.substack.com/p/towards-a-...
Grey background with light grey stars sprinkled on. It reads "Towards a langauge of the mind: How and why to describe the visceral pleasures of thinking"
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Jean-Marie Frachisse @jm-frachisse.bsky.social · 02/01/2026
Happy and healthy 2026 Liz
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Nico Schramma @nicoschramma.bsky.social · 19/11/2024
💥Beyond happy 💥 Our work is now published in PNAS! www.pnas.org/doi/10.1073/... With Gloria Canales & @mazi1.bsky.social we studied how the single celled alga Pyrocystis lunula 🌙 move their chloroplast in response to strong light. Get ready for some fun mechanics, signals and organelle motion! 🧵
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Jared Popowski @jaredpopo.bsky.social · 01/12/2025
The JXB Tomato special edition is out, featuring the first publication of my PhD! We found that glandular trichome head rupture in tomato is an ultra-sensitive defense against insect predation. 🧵on plant biomechanics, fluid dynamics, and plant-insect interactions! 🧪 academic.oup.com/jxb/article/...
academic.oup.com
Glandular trichome rupture in tomato plants is an ultra-fast and sensitive defense mechanism against insects
Glandular trichomes function as ultra-fast biomechanical defense triggers in tomatoes, rupturing upon contact with insects and exposing them to sticky and
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Jean-Marie Frachisse @jm-frachisse.bsky.social · 27/12/2025
Nice to see all these generations, especially the young ones, aware and smiling ........
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Anne-Sophie Fiorucci (she/her) @annesofio.bsky.social · 22/12/2025
On December 12th, Guillaume Martin became Dr. Martin! Congratulations for all that you have accomplished during your PhD!!! #PlantScience @i2bcparissaclay.bsky.social
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Greg Vert @plantubiquitin.bsky.social · 08/12/2025
Check out our latest paper. Very glad to see this one finally out. Fantastic work by @charlotte-dlslle.bsky.social . Learn more about MBAP proteins and their roles in brassinosteroid signaling. www.sciencedirect.com/science/arti...
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Meroz Lab @merozlab.bsky.social · 02/11/2025
New paper!💡 Amir Ohad developed this nifty setup to measure weak forces generated by freely moving plants, based on the deflection of a pendulum (straw from the cafeteria 😎), which does not require any tethering of the plant: academic.oup.com/jxb/advance-... Plant-obstacle interactions here we come!
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Jean-Marie Frachisse @jm-frachisse.bsky.social · 24/10/2025
Great job from Pauline Vinet on root mechanotransduction @i2bcparissaclay.bsky.social and @LMSC Paris
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IngeKuhl @kuhl-lab.bsky.social · 18/10/2025
Finally out! Moderate POLRMT increase boosts mitochondrial transcription initiation and exercise capacity. Huge thanks to all co-authors, especially Maria Miranda! @lsajournal.org @i2bcparissaclay.bsky.social doi.org/10.26508/lsa...
doi.org
POLRMT overexpression increases mtDNA transcription without affecting steady-state mRNA levels
POLRMT is the sole RNA polymerase in human mitochondria, where it generates primers for mitochondrial DNA (mtDNA) replication and transcribes the mtDNA to express genes encoding essential components o...
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Liz Haswell @ehaswell.bsky.social · 21/10/2025
"What we witnessed in that AI video was one of the most striking public displays of projection and psychosexual rage ever exhibited by a political leader. . .a public humiliation fantasy rooted in race, class, and power. . .a window into the psyche of an authoritarian man who is eroticizing cruelty.
substack.com
Donald Trump’s AI Video Is a Psychosexual Confession
This Substack is reader-supported.
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bioRxiv Plant Bio @biorxiv-plants.bsky.social · 06/10/2025
Ca2+ signature-dependent control of auxin sensitivity in Arabidopsis www.biorxiv.org/content/10.1101/202…
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Greg Vert @plantubiquitin.bsky.social · 13/10/2025
Great work by julien Spielmann now published in @theplantjournal.bsky.social. onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Canonical tyrosine‐based motifs are required for constitutive endocytosis and polarity of IRT1 and contribute to metal uptake
Control of IRT1 cell surface levels is critical for plant iron uptake from the soil and was previously shown to be regulated by ubiquitin-mediated endocytosis upon non-iron metal excess. Here, we she...
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Jean-Marie Frachisse @jm-frachisse.bsky.social · 07/10/2025
The link between mechanosensing and AP ...... Finally!
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Brigit Strawbridge @brigitstrawbridge.bsky.social · 24/08/2025
When the World Sleeps - by Palestinian artist, Malak Mattar Malak was born in 1999 in the Gaza Strip and grew up under occupation and the military siege. She came to London in 2023 to study Fine Art More about this artist and her work, here: www.malak-mattar.com #art #Palestine #Gaza
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Pierre Girard @pierregirard.bsky.social · 23/07/2025
23 pesticides très utilisés en France viennent d'être interdits d'un seul coup au Danemark. Explications : youtube.com/shorts/XDBSv...
youtube.com
23 pesticides interdits d'un seul coup ! #agriculture
YouTube video by Pierre Girard
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ARTE @artefr.bsky.social · 20/08/2025
L'Arabie Saoudite a changé ? Bienvenue dans un pays sous influence(urs).
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ARTE @artefr.bsky.social · 20/08/2025
« Arabie Saoudite : derrière les influenceurs, le règne de la peur », un documentaire à retrouver sur ARTE ⤵️
youtube.com
Arabie saoudite : derrière les influenceurs, le règne de la peur | Sources | ARTE
YouTube video by ARTE
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ARTE @artefr.bsky.social · 27/05/2025
Le documentaire « Pepe Mujica » est à retrouver sur ARTE 📺
arte.tv
Pepe Mujica - Le président et la motte de terre - Regarder le documentaire complet | ARTE
Une rencontre au long cours avec l'atypique ex-président uruguayen Pepe Mujica (de 2010 à 2015), dont l'humanisme jovial ravit autant qu'il bouleverse. Un irrésistible "miracle" latino-américain.
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Ardem Patapoutian @ardemp.bskyverified.social · 15/08/2025
🫣🙄 This is not how I got the Nobel Prize! "Out of the blue, while Finance Minister Jens Stoltenberg was walking down the street in Oslo, Donald Trump called," Dagens Naeringsliv reported, citing unnamed sources. "He wanted the Nobel Prize - and to discuss tariffs." www.reuters.com/world/asia-p...
reuters.com
Trump told Norwegian minister he wants Nobel Prize, newspaper says
When U.S. President Donald Trump called Norway's finance minister last month to discuss tariffs, he also told him he wanted the Nobel Peace Prize, Norwegian business daily Dagens Naeringsliv reported on Thursday.
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Arif Ashraf @aribidopsis.bsky.social · 09/08/2025
🍀🔬 CSLD5-mediated cell wall remodelling regulates tissue mechanics and shoot meristem growth @natcomms.nature.com www.nature.com/articles/s41... Movies: Cell division orientation in wild-type (attached) and csld5 (comment) shoot apical meristem.
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Jean-Marie Frachisse @jm-frachisse.bsky.social · 07/08/2025
Tanks to Yannick Guerringue for his contribution to this story on mechanosensitive channel and calcium!
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Christophe Le Clainche @actin-paris-saclay.bsky.social · 06/08/2025
🎓 My team is seeking a PhD student in Biochemistry & Cell Biology at I2BC, Paris-Saclay! 🔬 Study cytoskeletal signaling in collective cell migration 🌍 Fully funded, 3 yrs | 📍 Gif-sur-Yvette, France 🗓️ Apply by Aug 22 via the following link: emploi.cnrs.fr/Offres/Docto...
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Luis Alonso Baez @luisalonsobaez.bsky.social · 01/08/2025
One of the key aspects influencing morphogenesis is mechanics. We mapped the mechanical properties of living roots at the tissue and cellular levels using Brillouin microscopy and molecular rotors. www.biorxiv.org/content/10.1...
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Bon Pote @bonpote.com · 29/06/2025
Les politiques et journalistes qui parlent d'écologie punitive et d'atteinte à la liberté, c'est quoi votre programme quand il fait 40°C à l'ombre ?
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RDP lab @rdplab.bsky.social · 16/06/2025
🎉 Congratulations to our director Gwyneth Ingram, awarded the 2025 CNRS Silver Medal! A well-deserved recognition of her outstanding research in plant developmental biology. 🌱 👉 More info: www.cnrs.fr/fr/actualite... 👉 Her profile: www.insb.cnrs.fr/fr/personne/...
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Christian Fankhauser @chfankhauser.bsky.social · 16/06/2025
Great job opportunity at The Center for Integrative Genomics, Lausanne University, Switzerland unil.ch/cig/en/home.... For a tenure-track Assistant Professor position. More details for how to apply are here nature.com/naturecareer...
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Institute Jean-Pierre Bourgin for Plant Sciences (IJPB) @ijpb-versaillescly.bsky.social · 04/06/2025
#IJPB Seminar We are glad to welcome Anne-Sophie Fiorucci 👩‍🔬 @annesofio.bsky.social from @i2bcparissaclay.bsky.social for a talk about her research on growth, temperature and nitrogen nutrition 🌿 🇳+🌡️ 📆 Thursday 5th June ⏰ at 11 AM for more 👉 bit.ly/3SuPZvx @ijpb-versaillescly.bsky.social
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Vicky Lioy @vslioy.bsky.social · 13/02/2025
Celebrating the International Day of Women and Girls in Science at @i2bcparissaclay.bsky.social! Inspiring speeches from I2BC’s female scientists, plus a special visit from Sylvie Retailleau, who shared a wonderful reflection. Thank you a lot to the organizers! #WomenInScience
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Imagerie-Gif Facilities @imagerie-gif.bsky.social · 05/02/2025
Last day for our "Image Analysis course on FIJI"🔬🧪💻. Well done to all the trainees for hanging in there right to the end 💪. And thank you for all the discussion and good mood😃. ✏️Next session will be 12-14 Nov 25 still @i2bcparissaclay.bsky.social (Gif sur Yvette)
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Jane Langdale 🌱 🌾 @janelangdale.bsky.social · 18/02/2025
A curious, modest man with an encyclopaedic knowledge. No ego but a quiet self-confidence that inspired many. No doubt many publications in the coming years will report innovative ideas that he thought of decades ago….
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Liz Haswell @ehaswell.bsky.social · 03/02/2025
Whoops 🧪 #PlantScience #academicsky
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Liz Haswell @ehaswell.bsky.social · 09/01/2025
You’ve probably heard that trees share resources through an underground network of fungi—that story is everywhere. But it is not supported by much evidence, & scientists are walking back early claims. Here, I ask why there is so much resistance to changing the story 🧪 #PlantScience #SciComm
a big tree with the words "Bursting the mother tree bubble. Why is the sotry of altruistic trees so attractive (and so hard to counteract)?
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Christophe Le Clainche @actin-paris-saclay.bsky.social · 05/12/2024
OFFRE D'EMPLOI / JOB OFFER (IN FRENCH) Notre équipe peut accueillir un-e assistant-e ingénieur-e en biologie (déjà en poste au CNRS) dans le cadre du programme NOEMI de mobilité interne du CNRS. Pour candidater et obtenir plus d’informations : bit.ly/4gjpFhQ
bit.ly
Détails de la fonction choisie
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Laura Ragni @lauraragni.bsky.social · 20/11/2024
physiologiaplantarum.org/2024/11/20/t... #PlantScience organized by Physiologia Plantarum
physiologiaplantarum.org
The 7th Connecting Plants & People Webinar
Welcome to the 7th Plants & Peoples webinar -a joint venture between Physiologia Plantarum and the Scandinavian Plant Physiology Society (SPPS) The focus is “Mechano – and cell-biology”. …
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Liz Haswell @ehaswell.bsky.social · 21/11/2024
I don't know much about this department, but I do know that their junior faculty are spectacular 😀 #plantscience #academicsky 🧪
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