Marios Chatzigeorgiou

Mind over matter, matter over mind?

Check out our fine mini-special (mini by our standards) special issue on how #brain and #body interact.

🧠🕺

www.cell.com/current-biol...

Ascidians (Ciona intestinalis)🪸Our distant chordate cousins! 🌊 Simple sea squirts that reveal how vertebrate body plans evolved 🧬 A key model for notochord formation, neural induction, and cell lineage mapping 📸 Video by MBL Embryology 2019 #ModelMonday #DevBio #EvoDevo

The evolutionary origins of synaptic proteins and their changing roles in different organisms across evolution Nature Reviews Neuroscience - Recent studies have shed further light on the evolutionary origins of chemical synapses, In this Review, Colgren and Burkhardt explore how ancient proteins were...

First neurons didn’t appear overnight. We trace their roots to ancient secretory cells - showing how lifestyle & behavior shaped the evolution of first synapses.🧠🌊 #Evolution #Neuroscience

Our latest in @natrevneuro.nature.com
Link: rdcu.be/eMX3E

@jeffcolgren.bsky.social @msarscentre.bsky.social

🪸 🪸 🪸 Postdoc position in my group at Bristol to study the role of venom in surviving environmental stress in corals! 🪸 Interested in venom biochemistry and coral ecology?Please apply by November 24!
@bristolbiosci.bsky.social
www.bristol.ac.uk/jobs/find/de...

last 10 days to apply
www.averof-lab.org/pages/tracman

See you all in #BeautifulRoscoff next Spring 🙌🏻

📣 Fully-funded PhD opportunity in my Lab @bristolbiosci.bsky.social @bristoluni.bsky.social
🔬We will explore how coral larvae sense their environment and guide settlement.
Check out the details! 👇
www.findaphd.com/phds/project...

#Coral #SensoryEcology #PhD #MarineScience

Tiny sea cucumbers, big mysteries! 🪱
Out sampling for my MSCA project SensHolo at the @msarscentre.bsky.social, at the University of Bergen, 🇳🇴— exploring how these mini echinoderms sense their world.
Plus a few bonus echinoderms! 🌊✨

Still can’t quite believe it 💫 I’ve received the L’Oréal-UNESCO For Women in Science “Jeunes Talents” France 2025 award!
I’m so deeply honored — this recognition means so much to me, both as a scientist and as a woman who loves research. 💙🔬 1/3

Very sad to hear that Sir John Gurdon, former Master of Magdalene College, has passed away at the age of 92. www.cam.ac.uk/research/new...

Here is a powerful reminder that you should never give up on your dreams.

Michael Sars Centre researcher awarded UiB Idé innovation grant Guillaume Poncelet, postdoctoral researcher in the Christiaen group, will receive funding from the UiB Idé innovation program to develop a novel product inspired by marine life.

Huge congratulations to postdoc Guillaume Poncelet @guillaumeponcelet.bsky.social who was awarded a UiB Early Idea innovation grant 🤩🎉 Inspired by his work in the @lionlchristiaen.bsky.social lab, he will be developing a new product derived from naturally occurring compounds 🔬 Read more below ⤵️

Frontiers | Understanding the Response of Ecosystems to Increasing Human Pressures and Climate Change – Management Options The human footprint on the world's oceans has grown significantly in recent years, exerting immense pressure on marine ecosystems and leading to a decline in...

Our Editorial concludes a Research Topic with 26 insightful articles on how #ecosystems respond to human pressures & #ClimateChange: www.frontiersin.org/journals/mar...

Explore the full collection: www.frontiersin.org/research-top...

#MarineScience #Conservation #Biodiversity #MarineEcology
🧪🌍🌐🌊

This was a collaborative project with Alberto Stolfi at GeorgiaTech and @lionlchristiaen.bsky.social at @nyu.edu, @msarscentre.bsky.social, and @unibergen.bsky.social .

Alberto also created a song for this paper, in the style of 80s hard rock. Check it out 🔈

Another tour-de-force paper led by Bluesky-free Alberto Stolfi, who pushed it through the finish line in his lab at Georgia Tech 🙌🏻🙏🏻 From transcription to alternative RNA splicing, AchR aggregation and neuromuscular junction formation #Ciona neurodevelopment at its best 🤩 @msarscentre.bsky.social

New preprint! 🎶🌊 We built a low-cost (€50) passive acoustic toolkit for underwater recordings—robust, DIY, and ideal for #CitizenScience & education. Testing shows strong potential for large-scale #soundscape #monitoring.
www.preprints.org/manuscript/2...
#MarineEcology #hydroacoustics 🧪🌍🌐

Congrats Esteve 👏🏻👏🏻 for your excellent defense of your TFG studying how marine noise contamination affects #Oikopleura, #deuteronoise project cosupervised by @evadevo.bsky.social @esteeve.bsky.social @geneticsub.bsky.social @irbio-ub.bsky.social @ub.edu

Flagellar gliding in choanoflagellates Freire-Delgado and Brunet discover a new mode of cell motility in choanoflagellates, the closest relatives of animals. Under mild confinement, choanoflagellate move over surfaces without cell deformat...

New short paper from our lab @currentbiology.bsky.social, in which we discover of a new mode of cell motility for choanoflagellates: flagellar gliding. www.cell.com/current-biol... - A 🧵

A transformative embryology summer course This summer, PhD candidate Max Jordi Makem Pekouankouang from the Christiaen group at the Michael Sars Centre attended the prestigious Embryology summer course at the Marine Biological Laboratory in W...

"A reminder of why I fell in love with biology in the first place" 🔬✨ This summer, PhD candidate Max Jordi Makem Pekouankouang from the @lionlchristiaen.bsky.social lab participated in the Embryology course at @mblscience.bsky.social. He shares how this experience enriched his approach to science ⤵️

Ectopic sodium channel expression decreases excitability of Drosophila Kenyon cells Abstract figure legend: We tested the effects of expressing the bacterial voltage-gated sodium channel NaChBac in the Kenyon cells of the Drosophila memory centre, the mushroom body. NaChBac expressi...

Excited to share our latest work - expressing the bacterial sodium channel in fly Kenyon cells surprisingly *decreases* their excitability, thanks partly to decreased endogenous sodium channels. This prevents learning and decreases odor-evoked calcium influx doi.org/10.1113/JP28...

Finally, the excellent postdoc work of Emmanuel Haillot is out, where he dissected the integration of Wnt, MAPK and Notch signaling in defining mesoderm and endoderm identities in the diploblast Nematostella. Strikingly similar to sea urchins. www.nature.com/articles/s41...

Complex behaviour is not limited to animals! Here we map the entire spectrum of waveforms dynamics on a quadriflagellate single cell with 4x 70um (!) #cilia, to a low dimensional behavioural manifold with surprising structure! #protistsonsky

All revealed in our new preprint doi.org/10.1101/2025...

Congratulations @appygenetics.bsky.social on a new preprint 🤩 🧪 Read the whole paper below ⤵️

🌊🧪 Big day at #chemecol2025!
I presented my talk:
“Chemical cues & larval behaviour in the tunicate Ciona intestinalis 🪸✨

I had the pleasure of chairing the Aquatic Chemical Ecology session — featuring amazing talks on annelids, cnidarians, oysters, and red algae. 🌿🦪🪼🪱

Our new preprint: how photoprotection is spatially coordinated with energy metabolism. Photosystem I is major source of radicals. We report EM structure of PSI in complex with superoxide dismutase SOD: direct link between energy conversion & oxidative stress defence
www.biorxiv.org/content/10.1...

Microscopy preprints – new tools and techniques in imaging - FocalPlane Microscopy preprints – new tools and techniques in imaging - News

🔬Our preprint list is now up on FocalPlane.
This week we focus on new tools and techniques in imaging. Let us know if we are missing any recent preprints that you've enjoyed reading.
focalplane.biologists.com/2025/06/13/m...

Microscopy preprints - applications in biology - FocalPlane Microscopy preprints - applications in biology - News

📢Our latest preprint list is now up on FocalPlane.
This week’s list focusses on research using microscopy tools to answer questions in biology. As always, please let us know if there are other preprints that you’d like to see included.
focalplane.biologists.com/2025/06/27/m...

The Predatory Intelligence Hypothesis. Happy to share this new preprint about how predator-prey interactions drive cognitive evolution and maintain cognitive variation.

ecoevorxiv.org/repository/d...

Suddenly ran into a sketch I’ve made for the placozoan peptidergic cells paper:

www.cell.com/cell/fulltex...

Volume rendering of the ctenophore aboral organ reconstructed by volume EM, showing the gravisensory balancers and the four quadrants.

In our new preprint we describe the synaptic #connectome of the nerve net in the ctenophore gravisensory organ. https://www.biorxiv.org/content/10.1101/2025.06.26.661250v1 #biology #neuroscience #ctenophore #vEM

Excited to contribute to the Mitoribosome collaborative study led by @wredenberglab.bsky.social in @natcomms.nature.com🎉 "The mitochondrial methylation potential gates mitoribosome assembly"
The assembly starts before the completion of the rRNA gene cluster processing🧵
www.nature.com/articles/s41...