Structural basis of biofilm formation mediated by the Pseudomonas aeruginosa fibrillar adhesin CdrA led by @olivia--smith.bsky.social Collaboration with @alexbateman1.bsky.social , Andres Floto and @geiselbiofilm.bsky.social labs

🚨 New in @natmicrobiol.nature.com! We reveal how the antibiotic target PBP1b fortifies the E.coli division site against osmotic rupture. Proud this was completed in our independent labs @dmf-unil.bsky.social, with @avettiger.bsky.social. Congratulations to all authors! 🦠❄️🔬 #teamtomo bit.ly/3SCbOg1 👇

The penicillin-binding protein PBP1b fortifies the Escherichia coli division site against osmotic rupture - Nature Microbiology

A specific isoform of PBP1b functions independently of the activator protein, LpoB, to drive generation of a wedge-like peptidoglycan structure that strengthens the division site in Escherichia coli.

doi.org

The first preprint from my PhD is out! :thread: How does an animal choose between two completely different reproductive fates? Here’s how one planarian does it :point_down: www.biorxiv.org/content/10.6...

Life-cycle trajectory inference links temperature-gated progenitors to reproductive fate

Temperature shapes reproductive strategies across animals, yet how individuals switch between sexual and asexual reproduction remains unknown. We establish the planarian Phagocata morgani as a model f...

biorxiv.org

Really hyped to share our pre-print on mtDNA replication-fission ! @nanigrotjahn.bsky.social (doi: doi.org/10.64898/202...) 🧵with details below ⤵️

ATAD3A structurally links mtDNA replication and mitochondrial fission

Mitochondrial function depends on the maintenance of its genome, and disruptions in copy number and distribution are hallmarks of mitochondrial disorders. Mitochondrial DNA (mtDNA) replication is spat...

doi.org

How does a cell remodel the ER membrane into a lipid droplet? Excited to share our new bioRxiv preprint, where we find that regulated opening of the seipin ring defines a functional ER–lipid droplet interface — and identify SMLR1 as a regulator of this transition. www.biorxiv.org/content/10.6...

First pre-print from the lab, a collaborative effort led by Jess Bourn @bournsupremacy.bsky.social, a fantastic PhD in my group. We resolve a key problem in development + evolution: how do we quantify heterochrony and link temporal variation to phenotype? www.biorxiv.org/content/10.6...

Quantitative mapping of heterochrony to species-specific phenotypes

The genetic program of animal development is conserved, but its rate of execution varies across species. Heterochrony, shifts in the relative timing of developmental events, generates phenotypic varia...

biorxiv.org

Super excited to share my first paper from my PhD in the @dodonova-sveta.bsky.social lab. We visualise how chromatin from archaeal cells is organised using cryo-ET and SPA. Big thanks to everyone involved in this project!

Svetlana Dodonova@dodonova-sveta.bsky.social · 2mo ago

Excited to share our new preprint! 🧬❄️ by brilliant @mdreimann.bsky.social and great collaborators! Using cryo-ET&EM, we reveal archaeal chromatin in a near-native state: variable-beads-on-a-string fibers shaped by growth phase and histone composition #ArchaeaSky www.biorxiv.org/content/10.6...

Super cool cryo-ET work from my colleague Xiaohan resolving a ton of ribosome assembly intermediates in the nuclei of human cells!

bioRxiv Cell Biology@biorxiv-cellbio.bsky.social · 3mo ago

In-cell structures visualize human pre-ribosome assembly in the nucleolus https://www.biorxiv.org/content/10.64898/2026.06.01.729245v1

☕ @nicolettapetridou.bsky.social & co report a feedback loop between Nodal signaling and tissue phase transitions in zebrafish #embryos. Nodal alters adhesion, triggering tissue rigidification and reduced porosity, which limits its diffusion and speeds up Lefty expression. go.nature.com/4vgBYmo

Tissue rigidity phase transition shapes morphogen gradients - Nature Cell Biology

Autorino et al. report a feedback loop between Nodal signalling and tissue phase transitions in zebrafish embryos. Nodal alters adhesion, triggering tissue rigidification and reduced porosity, which l...

go.nature.com

AreTomoLive: a preprocessing pipeline for cryo-ET that streamlines tomographic alignment, reconstruction and contrast enhancement. www.nature.com/articles/s41...

AreTomoLive: automated reconstruction of comprehensively corrected and denoised cryo-electron tomograms in real time and at high throughput - Nature Methods

AreTomoLive is an accelerated preprocessing pipeline for cryo-electron tomography that streamlines tomographic alignment, reconstruction and contrast enhancement. This pipeline prioritizes automation ...

nature.com

New preprint alert! Ever wonder if cells can talk to each other? Tunneling nanotubes (TNTs) are tiny bridges between cells used to pass organelles, nucleic acids, proteins & even viruses but we've never seen inside them clearly. Until now! 👇🧵 biorxiv.org/content/10.64898/2026.05.27.728322v1

The molecular architecture of tunneling nanotubes www.biorxiv.org/content/10.64898/2026.05.27.728322v1 #cryoEM

We're happy to announce our new preprint! 🐸 easymode: general pretrained networks for cellular cryo-ET. Segment ~20 cellular features – ribosomes, microtubules, mitochondria, nuclei & more – with zero model training. 🔗 doi.org/10.64898/202... 🧵👇

Sub-cellular chemical mapping using correlated cryogenic electron and mass spectrometry imaging online @natmethods.nature.com, led by Hannah Ochner, collaboration with @catfranco.bsky.social and @kiranrpatil.bsky.social labs doi.org/10.1038/s415...

Thrilled to share the updated video of my paper in Nature with Maciej (under supervision of @simonemattei.bsky.social & @jomaalab.bsky.social) Proud to use Cryo-ET to uncover how hibernation factors are key to translation restart! To model PTMs in situ and render animations fulfilled my PhD dream!🥹🎉

EMBL@embl.org · 3mo ago

Despite its name, SNOR, a newly discovered protein, is hardly asleep on the job. EMBL researchers’ newest technologies allowed their scientific collaboration to discover a tiny protein with a big role in awakening cells from dormancy to restart protein synthesis. www.embl.org/news/science...

LowDoseWizard - rapid and standardised setup of low-dose cryo-TEM imaging in SerialEM www.biorxiv.org/content/10.64898/2026.05.05.722937v1 #cryoEM