New paper: Sim, C. W. H., Walde, M., Strindberg, H., Kaur, A., Le Panse, S., Gourvil, P., Jahren, J., Vaulot, D., & Lopes dos Santos, A. (2026). Labyrinthula merlionensis sp. nov. : A Novel Labyrinthulid Infecting Marine Diatoms. J. of Eukaryotic Microbiology, 73, e70111. doi.org/10.1111/jeu....

<fi>Labyrinthula merlionensis</fi> sp. nov.: A Novel Labyrinthulid Infecting Marine Diatoms

Labyrinthulomycetes are a class of fungus-like heterotrophic protists from the Stramenopiles lineage, recognized for their ecological role as decomposers and contributors to nutrient cycling. They co...

doi.org

New paper: Arañó-Ansola et al. (2026). Evaluating 18S Phylogenetic Placement Accuracy to Uncover Hidden Diversity in Non-Bilaterian Animals. Environmental DNA, 8(4), e70350. doi.org/10.1002/edn3...

Evaluating <fc>18S</fc> Phylogenetic Placement Accuracy to Uncover Hidden Diversity in Non‐Bilaterian Animals

We assembled the largest curated non-bilaterian 18S reference dataset and demonstrate that barcode choice strongly influences phylogenetic placement accuracy. Full-length 18S provides the most robust...

doi.org

Major update of the metaPR2 database with 120 new datasets and more than 18,000 samples. pr2-database.org/post/news/20...

metaPR2 version 4.0.0 | The PR2 databases

Adding 120 datasets to the database.

pr2-database.org

Over the last nearly 100 years, these folks have made remarkable contributions to our knowledge of the microscopic wonders, Tintinnid Ciliates! Find out about these folks: ejournals.eu/en/journal/a...

Rencontre Immersion - 28/04/2026. You can find the article (in French) here: www.campusmer.fr/actualites-1... and a movie here : www.youtube.com/watch?v=jXzs...

15ᵉ Rencontre Immersion : au cœur des ressources marines à la Station biologique de Roscoff

Derniers articles d'actualité des acteurs sciences et technologies du Campus mondial de la mer, en Finistère (Roscoff, Morlaix, Brest, Quimper, Concarneau, Lorient)

campusmer.fr

Fun workshop coming up in Roscoff. You can learn building your own low-cost microscopes. Smart DIY Microscopy for Marine Biology 3-5 June 2026 🔬🌊🦠 Application deadline April 02 www.sb-roscoff.fr/en/workshop-... @embrc-france.bsky.social @gdrimabio.bsky.social @sbroscoff.bsky.social #EnderScope

IBMP | Institut de biologie moléculaire des plantes@ibmp-cnrs.bsky.social · 7mo ago

🚀 Great to see @eurobioimaging.bsky.social highlight the innovative #EnderScope, a low-cost, open-source microscopy system expanding access to imaging! 🔬👏 Kudos to Jérôme Mutterer (IBMP microscopy platform). ▶️ www.eurobioimaging.eu/news/innovat...

Very excited to present our new project #BYGENEX, an @ERC_Research Advanced Grant! During the next five years we will be studying the genetic mechanisms that govern the phagocytosis of bacteria by protists @icmcsic.bsky.social

New article on #protist global distributions combining the #Mixoplankton and #metaPR2 databases with revised functional annotations led by @lusantof.bsky.social, Michaela E. Larsson, and Suzana Leles with Aditee Mitra and Emile Faure. Now available on Ocean Microbiology rdcu.be/fanlx

Plongée au cœur des ressources marines de la Station Biologique de Roscoff : de l’aquarium à la culture www.campusmer.fr/agenda-renco...

Rencontres Immersion : Station Biologique de Roscoff

Les évènements organisés par et pour les acteurs sciences technologies marines du Campus mondial de la mer, en Finistère (Roscoff, Morlaix, Brest, Quimper, Concarneau, Lorient)

campusmer.fr

Docker containers are now available for the three PR2 applications: - pr2-database: reférence database - pr2-primers: primer database and analysis - metapr2: metabarcode database and visualization. This by far the easiest way to use these databases on your computer. hub.docker.com/repositories...

For those of you who are using metaPR2 extensively, a good alternative to installing the R package which can cause trouble because of dependencies, you can try the newly available docker container: hub.docker.com/repository/d...

Using Docker for work? We recommend signing in with your work email address.

hub.docker.com

👀

Paris prosecutors raid French offices of Elon Musk's X

The search is part of a preliminary investigation into a range of alleged offenses, including reports that the AI chatbot Grok helped disseminate Holocaust denial content and sexual deepfakes.

lemonde.fr

Just on time for the holidays! Happy to share the published version of the discovery of leptophytes, a new deep-branching and widespread group of microalgae based on plastid MAGs (ptMAGs). Now with additional support from a mitochondrial MAG (mtMAG) of leptophytes. www.nature.com/articles/s41...

Using PR2 www.nature.com/articles/s41...

Rare microbial relict sheds light on an ancient eukaryotic supergroup - Nature

The discovery of an unusual protist named Solarion arienae, which has a mitochondrial genome with some intriguing features, provides insight into the early radiation of eukaryotic groups.

nature.com

Fantastic work done with a very large number of RCC strains.

Omaya Dudin 𓂆 ¦🍉¦🦠¦🔬¦@dudinlab.bsky.social · 10mo ago

🚨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...

Another piece of fascinating work done with RCC strains.

Flora Vincent@floravincent.bsky.social · 10mo ago

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

We have added more than 900 new GenBank sequences to the RCC database that are linked to the web page of the corresponding strains.

New version of PR2 that now includes the eKOI coi database recently published.

The PR2 database@pr2-database.bsky.social · 10mo ago

Version 5.1.1 of the PR2 database has been released. The major novelty is the inclusion of the recently published eKOI database (coi gene- doi.org/10.1093/data...) in the web interface. The 18S rRNA database is not changed so you can use 5.1.0 or 5.1.1 for metabarcode annotations

PR2 primers version 2.1.0 has been released. This does not include any new primer, but now the database uses the latest version of PR2 (5.1.1) to perform in silico analyses. Access here: app.pr2-primers.org

New publication: "A novel taxonomic database for eukaryotic mitochondrial cytochrome oxidase subunit I gene #eKOI, with a focus on #protists diversity" with Daniel Vaulot @daniel-vaulot.bsky.social from @biovitenskap.bsky.social Published in Database by @oxfordacademic.bsky.social

A novel taxonomic database for eukaryotic mitochondrial cytochrome oxidase subunit I gene (eKOI), with a focus on protists diversity

Abstract. Metabarcoding has emerged as a robust method for assessing biodiversity patterns by retrieving environmental DNA directly from ecosystems. While

academic.oup.com

New publication: "Towards a trait-based framework for #protist ecology and evolution" with Daniel Vaulot @daniel-vaulot.bsky.social from @biovitenskap.bsky.social Published in Trends in Microbiology @cp-trendsmicrobiol.bsky.social by @cellpress.bsky.social

Towards a trait-based framework for protist ecology and evolution

Protists comprise the vast majority of eukaryotic genetic and functional diversity. While they have traditionally been difficult to study due to their…

sciencedirect.com

The lost art of scientific illustration: from August Brauer's deep-sea fish

metaPR2 version 3.0 has just been released. Here are the major changes: - Metabarcodes (ASVs) are now annotated with the latest version of the PR2 reference sequence database (5.1.0). - 8 new published datasets have been added from the Arctic and from the South West Pacific. app.metapr2.org

A paper just came out in Science about giant photosystem complex in Gephyrocapsa huxleyi RCC6660 www.science.org/doi/full/10....

A new video from the MarinnoNET proejct to which RCC is a partner. www.youtube.com/watch?v=xkD8...

MARINNONET Project video

YouTube video by Juan Luis Gomez Pinchetti

youtube.com

It was so nice and so fulfilling to interact with you both...

Adriana Lopes@lopessantosadriana.bsky.social · last yr.

So proud of Dr Sim and Dr Ong!! What a privilege I had to be your advisor. Thank you for the trust! Excited to see your next scientific adventures!! 😍😍 @biovitenskap.bsky.social

Very nice led by Clarence and Adriana...

Adriana Lopes@lopessantosadriana.bsky.social · last yr.

What’s thriving under Arctic sea ice? We tracked photosynthetic protists during the Arctic UIB,revealing a shift from polar to polar-temperate taxa & spotlighting overlooked groups!Great team & Dr. Sim effort! @biovitenskap.bsky.social @roscoff-collection.bsky.social academic.oup.com/ismecommun/a...

We have contributed to a paper led by Kenneth Timmis on the murky world of predatory journals: enviromicro-journals.onlinelibrary.wiley.com/doi/10.1111/...

We have an A in house with a brillant master thesis defence of Sandra Irén!!! First master student of the GEEK lab in Norway! 😍 Thanks to @maritbjorbaekmo.bsky.social and Inger Skrede for a delightful & constructive discussion. #protists #proudadvisor 🔬🧬👩‍💻 @biovitenskap.bsky.social

Dose of Protist Art: Chatton's chapter 1952 "Classe des Dinoflagelles ou Péridiniens" in Traité de Zoologie, Tome 1A. Fig. 1 Euglena intermedia; Fig. 2 Gyrodinium melo; Fig. 3 Amphidinium corpulentum; Fig. 4 Warnowia maculata; Fig. 5 radiolarian Auloceros elegans #protistsonsky