Manon Demulder

CryoET of microbes inside an animal organ? Yes it’s possible! Check out our new preprint showing how we did it! What an amazing collaboration with amazing scientists who made this possible!

YouTube video by Schmidt Ocean Station 2 | SOI Divestream 863

Livestream dive two. We see a strawberry squid and a sea of brittle stars: www.youtube.com/watch?v=HZLe...

We are looking for a PhD student to work on an exciting plastid endosymbiosis in microbial eukaryotes. This position involves sampling, exciting microscopy such as CARDFISH, ExM and FIBSEM, single-cell transcriptomics and more. #protistsonsky 1/2

Exciting day for the lab: our 1rst paper is officially out in @currentbiology.bsky.social 🥳 Wonderful collaboration wt @gautamdey.bsky.social showing how Cryo-ExM achieves consistent immunostaining in diverse diatoms, from the lab and the natural environment 1/n
#ProtistsOnSky
tinyurl.com/2zxaund7

🚨Our collaboration with @centriolelab.bsky.social & @gautamdey.bsky.social is out today in @cp-cell.bsky.social
We show that #Expansion #Microscopy is a broad-spectrum modality for Euks, enabling 3D phenotypic maps rooted to phylogeny.
#ProtistsOnSky #SciComm #SciSky

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

Please join us next week for the second iteration of the DinoSphere Seminars! This time our two speakers will talk about host-associated dinoflagellates and any challenges they might have encountered when working with them. All current and future friends of dinoflagellates welcome!
#ProtistsOnSky

We’re back with the next DinoSphere Online Seminar!

Join us on Nov 4th, we're hosting:

Edmée Royen (ULiège) - Symbiodinium

Nicolas dos Santos Pacheco (Cambridge) - Perkinsids

📅 Tue, Nov 4 - 4 PM CET/3 PM GMT

💻 Zoom link: sites.google.com/view/dinosphere


Please spread the word!
#protistonsky

After exploring Europe’s coastlines, EMBL’s TREC expedition is moving inland! 💧

The new Traversing Ecosystems phase focuses on freshwater habitats – studying how human activity and environmental change affect life at the molecular level.

www.embl.org/news/science...

Locating the missing chlorophylls f in far-red photosystem I The discovery of chlorophyll f-containing photosystems, with their long-wavelength photochemistry, represented a distinct, low-energy paradigm for oxygenic photosynthesis. Structural studies on chloro...

Have you ever looked at the night sky and wondered if there’s a chlorophyll f in the reaction centre of Photosystem I from far-red light adapted cyanobacteria? 🦠

Well, we did (don’t judge) and the work that followed is now out as a First Release in @science.org

www.science.org/doi/10.1126/...

Pretty excited to share our new preprint!
Non-photosynthetic Plastid Replacement by a Primary Plastid in the Making
www.biorxiv.org/content/10.1...

Ice Diatoms Glide at Record-Low Temperatures - Eos New observations reveal how microscopic organisms move through polar ice and illustrate how they may have evolved to thrive in extreme environments.

Life knows how to keep going - even if it’s freezing -15 degrees C 🥶 outside. AGU just covered our discovery of ultra resistant ice diatoms gliding into a world record! 🧪🔬Enjoy the story here:

eos.org/articles/ice...

EXCITING NEWS!! We're searching for a new professor colleague at the Biozentrum🇨🇭. Ideal candidates are exploring novel biological questions with structure, biophysics, or high-resolution imaging. 🧪 🧶🧬 🔬

The call closes Nov 3. Please get in touch if you would like more information. Come join us! 👩‍🔬🤓

Check out the work our lab’s photosynthesis brain
@wojwie.bsky.social
and @lorenzlamm.bsky.social who created the AI pipeline that made this possible

Time for a thread!🧵 How different is the molecular organization of thylakoids in “higher” plants🌱? To find out, we teamed up with @profmattjohnson.bsky.social to dive into spinach chloroplasts with #CryoET ❄️🔬. Curious? ..Read on!

#TeamTomo #PlantScience 🧪 🧶🧬 🌾
elifesciences.org/articles/105...
1/🧵

I am excited to share our new preprint on the CAGE complex, a mysterious hollow protein complex that I first saw years ago while surveying Tetrahymena ciliary lysate www.biorxiv.org/content/10.1... #cilia #protistsonsky 🧬🧪

A molecular-resolution look into the near-native architecture of the spinach chloroplast🌱. This one was a long time in the oven, but we're happy to finally share our "version of record". What long-standing debates did we settle? Check back for a short thread🧵 on Monday. #TeamTomo #PlantScience 🧪🧶🧬🔬🌾

🌱 Using ‘compelling’ methods, including #CryoET, researchers mapped spinach thylakoid membranes at single-molecule precision, revealing how photosynthetic complexes are organised and settling long-standing debates on chloroplast architecture.
buff.ly/j3TSIkn

We found a new #ecological factor in #microbial mats: the #bacterial contractile injection system. Using #cryoET, #metagenomics, & quantitative #immunoTEM, we studied this feature directly in natural populations of bacterial #cells.

Check out 🧐 our new preprint 📜:
www.biorxiv.org/content/10.1...
Congrats🎉 to @vasilgaisin.bsky.social and Corina Hadjicharalambous, who studied contractile injection systems directly in hot spring♨️ bacterial mats🦠
#microsky #teamtomo #Chloroflexota

#protistsonsky
Direct link to the Chaetoceros Quick Guide if you want to learn more :)
@sorayazwahlen.bsky.social @currentbiology.bsky.social @cellpress.bsky.social
authors.elsevier.com/a/1lYLj3QW8S...

DinoSphere - Online talks Video credits: Liz Cooney

Our first DinoSphere seminar is this Tuesday, 1 July at 9 AM CEST! A good way to start the day if you're in Europe ☕

We will hear from Yong Heng Phua (OIST) and Karel Mocaer (Heidelberg)
🔗 Zoom link on our website: tinyurl.com/4duvwtvp

A host organelle integrates stolen chloroplasts for animal photosynthesis Sea slugs steal foreign chloroplasts and store them in specialized organelles that facilitate photosynthesis and eventual digestion to mediate starvation resistance.

Remarkable paper explaining how sea slugs maintain chloroplasts obtained by kleptoplasty active for many month & eventually digest them for resources www.cell.com/cell/fulltex...

Woo! Very excited to share our collaborative work on the centriole's Luminal Distal Ring ⭕. This project started 13 years ago with @hugovdhoek.bsky.social & @stearnslab.bsky.social, and then beautifully came together with @computingcaitie.bsky.social & @centriolelab.bsky.social.
#TeamTomo #UExM 🧪🧶🧬🔬

Postdoctoral Associate MIT - Postdoctoral Associate - Cambridge MA 02139

‼️I'm looking for a postdoc‼️ Come join effort in using metagenomes to quantify microbial catabolic potential and carbon substrate availability at the ecosystem level. We seek to understand evolutionary forces shaping the carbon cycle. Part of ccomp-stc.org

careers.peopleclick.com/careerscp/cl...

Happy to have contributed to this great article: #Protist genomics: key to understanding eukaryotic evolution. Congrats Alexandra Schoenle et al. #ProtistsOnSky
authors.elsevier.com/sd/article/S...

First stop of our @moorefound.bsky.social endeavour - @bic-wur.bsky.social. Sjoerd is keeping me busy with a bunch of species and we are busy fixing and plunge freezing them for the best possible #UExM results
#makeitbigger #50shadesofgreen
@dudinlab.bsky.social @gautamdey.bsky.social
@Tom Richards

Omaya Dudin Interview with Omaya Dudin, who uses Ichthyosporea as models to study how and why unicellular organisms evolved multicellularity at the University of Geneva.

90% of you probably don’t need to read this.
But maybe some of you are curious & 10% will feel seen. Or a little less alone. This isn’t about seeking sympathy.
It’s about sharing something hard to say out loud;
partly to heal, partly in case someone needs to hear it too. (1/3)
tinyurl.com/DudinO

What started during the #EMBLtrec Plankton Retreat last fall, is now out in the wild. Please join us for the first iteration of the DinoSphere Online Seminar Series and share with potentially interested colleges.

#ProtistsOnSky

DinoSphere Welcome

We’re building a collaborative space for early-career researchers working at the intersection of dinoflagellate taxonomy& molecular biology.
🔗 Learn more: sites.google.com/view/dinosph...
💬 Got questions or input? Please reach out and let us know.
Hope to see you there!