Joel Marthelot
@joelmarthelot.bsky.social
320 followers 420 following 22 posts
BioSoftActuation @ CNRS Aix-Marseille Univ https://biosoftact.wordpress.com
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joelmarthelot.bsky.social
Fresh off the press, our work on wing deployment in Drosophila 🪰:
www.nature.com/articles/s41...
Work by: Simon Hadjaje, Ignacio Andrade-Silva, Marie-Julie Dalbe and Raphaël Clément
Reposted by Joel Marthelot
aribidopsis.bsky.social
🍀🔬

MSL10 is a high-sensitivity mechanosensor in the tactile sense of the Venus flytrap @natcomms.nature.com from Toyota lab.

www.nature.com/articles/s41...
Reposted by Joel Marthelot
sespagnolie.bsky.social
Psst, your students want to hang out in Boulder next July. Application deadline is Jan. 15.

www.colorado.edu/conference/b...
Reposted by Joel Marthelot
natureportfolio.nature.com
A paper in Nature shows that parachute designs inspired by kirigami — the Japanese art of paper cutting to produce 3D designs — are stable and fall close to their target. These findings could simplify parachute manufacturing, reduce costs, and improve accuracy. go.nature.com/473OMmK 🧪
Kirigami-inspired parachute deploying to slow down the delivery of a water bottle from a drone. 

Credit: Frédérick Gosselin
Reposted by Joel Marthelot
danielalber.bsky.social
A ring of cells deforms into a triangular keyhole in just 15 minutes. Meet the hindgut, a model for boundary-driven morphogenesis!

Out now in @pnas.org at doi.org/10.1073/pnas... with @zhaoshh.bsky.social, Alex Jacinto, Eric Wieschaus, Stas Shvartsman, @lepuslapis.bsky.social (1/8)
Reposted by Joel Marthelot
mollfw.bsky.social
New paper on precise tool use learning in carrion crows @currentbiology.bsky.social. We show that—like New Caledonian crows—expert carrion crows pay close attention to the working end of their tool, suggesting tool integration into their peripersonal space. 🧵 & vids! 👇

www.cell.com/current-biol...
Reposted by Joel Marthelot
lepuslapis.bsky.social
New #preprint: "Control of lumen morphology by lateral and basal cell surfaces", a great #biophysics collaboration with Chandraniva Guha Ray, @markusmukenhirn.bsky.social, Alf Honigmann @biotec-tud.bsky.social @poldresden.bsky.social.

arxiv.org/abs/2509.04316

@mpipks.bsky.social @mpi-cbg.de
Reposted by Joel Marthelot
xaviertrepat.bsky.social
New preprint! 🚨 We uncover a slow adaptation to stretch that links star-bundling of keratin filaments with nuclear escape from its keratin cage. Led by @tomgolde.bsky.social‬ 🙌
@IBECBarcelona
www.biorxiv.org/content/10.1...
Reposted by Joel Marthelot
roederlab.bsky.social
We learned a lot about plant cell wall mechanics by stretching the Arabidopsis epidermis. Now published in
‪@natcomms.nature.com‬ Fibrous network nature of plant cell walls enables tunable mechanics for development
doi.org/10.1038/s414...
Reposted by Joel Marthelot
plosbiology.org
How do #honeybees adapt their comb-building to different spatial constraints? A new study from @oritpeleg.bsky.social &co uses 3D printed panels and X-ray microscopy to reveal the existence of three distinct construction modes, from tilting cells to building complex 3D structures.🧪
plos.io/4n1g6Hs
Honeybees adapt to a range of comb cell sizes by merging, tilting, and layering their construction
Honeybees often need to build their comb under conditions that prevent a regular hexagonal lattice. This study uses 3D printed panels and X-ray microscopy to explore their adaptive process when differ...
plos.io
Reposted by Joel Marthelot
blarson.bsky.social
What could be more exciting than watching Euplotes scurry around under the microscope? How about adding some raptorial predation by supergiant cannibal cells?

www.biorxiv.org/content/10.1...

Video by Vittorio Boscaro.

1/n
Reposted by Joel Marthelot
oritpeleg.bsky.social
New paper in PLOS Biology: as we raise the difficulty of our 3D printed puzzles, bees keep landing on combs with ever stranger hexagonal order! 🐝

Led by the brilliant Golnar Gharooni Fard, in collaboration with CK Prasanna & FL Jiménez

journals.plos.org/plosbiology/...
Close-up of experimental honeycombs built after a challenging 3D printed setup, showing mostly hexagonal cells.
Reposted by Joel Marthelot
Reposted by Joel Marthelot
simonhadjaje.bsky.social
🚰 Fluid inertia limits microporous flow efficiency, out in EPJ Plus this week, with Kaare Jensen @jensen-research.bsky.socialrdcu.be/eBV2C 👇
Reposted by Joel Marthelot
tiboleroyinen.bsky.social
My small contribution to the popularization of evolutionary biology during the #ESEB2025 week, thanks to this article on the evolution of rose breeding in The Conversation France.
If you read French, here it is: theconversation.com/comment-le-c...
If not, our Genetics paper: doi.org/10.1093/gene...
Reposted by Joel Marthelot
talboger.bsky.social
On the left is a rabbit. On the right is an elephant. But guess what: They’re the *same image*, rotated 90°!

In @currentbiology.bsky.social, @chazfirestone.bsky.social & I show how these images—known as “visual anagrams”—can help solve a longstanding problem in cognitive science. bit.ly/45BVnCZ
Reposted by Joel Marthelot
oritpeleg.bsky.social
More on collective behavior: Our new Annual Review of Biophysics piece - with the stellar Danielle Chase - explores how animals sense, share information, and make group decisions. In honeybees and beyond 🐝

www.annualreviews.org/content/jour...
Title page of the review article 'The Physics of Sensing and Decision-Making by Animal Groups' by Danielle L. Chase and Orit Peleg in Annual Review of Biophysics. Includes illustrations of collective behavior in honeybees: a diagram showing uncommitted scout bees transitioning through decision-making to choose between two nest sites; a honeybee on a honeycomb cell; a cluster of bees hanging from a branch; and a schematic of bees forming a layered cluster.
Reposted by Joel Marthelot
cellsdev.bsky.social
Maybe it's time we rethink the idea that development is a cell centric process? In this beautiful review, María-del-Carmen and @stramerlab.bsky.social discussed how the ECM underlies and influences many morphogenesis processes from wing unfolding to mammary gland development.
doi.org/10.1016/j.cd...
Tissue bending through localized BM growth or dissolution. Alteration in tissue morphology by intrinsic stresses in an assembling BM network. Branching morphogenesis driven by localized deposition of interstitial matrix. Asymmetric tissue expansion through anisotropic BM remodeling.
Reposted by Joel Marthelot
anaisbailles.bsky.social
Very happy that the first article from my postdoc work in the Tomancak lab is now published @PNAS! www.pnas.org/doi/10.1073/.... We studied the self-organization of actin in aggregates made from Hydra cells. Thread below (1/9)
Reposted by Joel Marthelot
leidenphysics.bsky.social
#Activematter research by Marine Le Blay, Joshua Saldi & Alexandre Morin from @unileiden.bsky.social published in @natphys.nature.com ! Read more: edu.nl/btmta. @leidenscience.bsky.social #physics