Again I am years behind: I have only recently noticed that critical information such as equal-contribution authorship is lost in important platforms such as PubMed, Google Scholar, ORCID... Fairness is critical to every one. Why nothing has been done to correct this? Something needs to be done!

Some little circus performers. #protistsonsky

If, unlike me you are a member Linnean Society and like me a fun of #Protistsonsky, consider nominating two amazing amateur protist naturalists: Ferry Siemensma (arcella.nl) and Eckhard Voelcker (penard.de), their contribution is outstanding!

Excited to share our third heterotrophic #Paulinella culture from Haida Gwaii, Canada! :) #ProtistsOnSky

Happy to share that our story on the bacterial archaellum was published today in @natmicrobiol.nature.com www.nature.com/articles/s41... Congrats to the authors: @sshamphavi.bsky.social @loumollat.bsky.social @mariejoest.bsky.social Najwa Taib and @sgribaldo.bsky.social

New preprint 🌊🫶 "A diverse community constitutes global coccolithophore calcium carbonate stocks" Three large coccolithophores together hold about half of the global CaCO₃ stock! G. huxleyi <10% ➡️ climate models need to include this broader diversity! 📄 doi.org/10.1101/2025... #protistsonsky

In another exciting development our new preprint is online: www.biorxiv.org/cgi/content/... This is the work of my brilliant graduate student Katerina Kourkoulou in collaboration with Maggie Liu and Arnold Mathijssen. Here is a video of the subject of our study:

Our 2nd heterotrophic #Paulinella culture! Really proud of this one. After days at the microscope picking cells, I finally got it growing happily :) #protistsonsky

Environment-dependent mutualism–parasitism transitions in the incipient symbiosis between Tetrahymena utriculariae and Micractinium tetrahymenae From Mostafa et al

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 🧵

Did you know tiny algae can "skate" within Arctic sea ice? ⛸️ Our new study in @pnas.org reveals the secret life of ice diatoms: they are actively gliding to navigate the ice! This adds a new dimension to the sea ice ecosystem, revealing an active, dynamic ecological niche. @prakashlab.bsky.social

What you're looking at is a brand new protist species! 🤯🔬 Isn't it beautiful? This image is just a glimpse of what's to come. We can't wait to share our full findings soon, in partnership with Guifré @beaplab.bsky.social @luisjagago.bsky.social. Stay tuned! #NewSpecies #protistsonSky #diversity

Check out our new paper on adopting a trait-based framework for protist diversity! We make the case for a unified protist trait database, how to build it, and how it could transform research on protist ecology and evolution. #protistsonsky

How do microbes become permanent partners? 🌊🔬🦠 Check out our new study published in Current Biology showing how cyanobacterial genomes evolve step-by-step into endosymbionts of diatoms. www.sciencedirect.com/science/arti... @currentbiology.bsky.social @mehrshmali.bsky.social

New #ISEPpapers! The fluid dynamics and functional diversity of the flagella of free-living flagellates orbit.dtu.dk/en/publicati... #Protists #Microbes #FluidDynamics #Biophysics

New paper is out! We have studied the cute tiny Discocelia plataet sp. n. to obtain the first molecular data of the order Discocelida and clarify its cell structure. All this for a better understanding of the evolution of Cercozoa. onlinelibrary.wiley.com/doi/epdf/10....

😍🫢😮

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...

New lab pre-print up! "Twelve species of human parasites make up half the literature on microbial eukaryotes" doi.org/10.1101/2025... We (led by UG Joanna Lepper and with @hbrappap.bsky.social) quantified all mentions of protist species in the scientific literature 🧵 #protistsonsky #microsky

🚨 Imagine a bacterium that refuses to follow the textbook: It grows as tangled filaments, divides unevenly, reshapes its own membranes… and even builds grappling hooks. Meet Litorilinea aerophila — and here’s why it blew our minds.

With a combination of FIB-SEM, super-resolution & expansion #microscopy, Araujo Alves, Bastin et al @bastinlab.bsky.social @pasteur.fr reveal how IFT trains are progressively restricted to a limited number of #microtubule doublets in the flagellum of T. brucei. rupress.org/jcb/article/... #Cilia

The first paper from my PhD is out now! doi.org/10.1111/jeu.... We describe a new photosynthetic #Paulinella species from a brackish beach in British Columbia 🇨🇦 Big thanks to the co-authors Maia Palka and @alive-in-the-ocean.bsky.social, and my supervisor @fburki.bsky.social #protistsonsky

www.pnas.org/doi/10.1073/... Genomes of nitrogen-fixing eukaryotes reveal an alternate path for organellogenesis #protistsonsky

Impressive, and I am sure amazing genomics, but it feels as some zoology carelessness. "Microscopic phyla"-??? Have you heard about acanthocephalans? giant thorny-headed worm starts crying 😭 Can anyone clarify which organ systems (!) were reinvented (!!!)? Please correct me if I missed anything.

Check out our recent publication on breviate protists and their microbial communities. In this study, led by PhD student Karla and postdoc Julie, we found that breviate growth under anoxia might be dependent on the metabolic capabilities of the prokaryotes they live with. doi.org/10.1093/isme...

Distinct Patterns of Co-Evolution Among Protist Symbionts of Neoisoptera Termites #termites #protists @mdpiopenaccess.bsky.social www.mdpi.com/1424-2818/17...

In our ongoing saga of description of new protists, we are happy to introduce Multisulcus malaysiensis, a deep-branching heterolobosean that forms highly unusual multiflagellated cells with multiple ventral grooves. Great work by @kristina-prokina.bsky.social onlinelibrary.wiley.com/doi/epdf/10....

I'm excited to announce our new biorxiv preprint, wherein we investigate the evolution of the weirdest genetic locus I've ever seen! Behold the tgr genes of the social amoeba, which mediate self/non-self discrimination during facultative multicellularity 🐅 🧵 1/ www.biorxiv.org/content/10.1...

🌟 New paper out! 🌟 Multi-omics reveals the microbial consortium sustaining Monocercomonoides exilis in vitro 🧬 Huge thanks to everyone involved, especially my project supervisor, Vladimír Hampl! 🙌 Read 👉 doi.org/10.1186/s407... #Microbiology #Protists #MicrobialEcology #Multiomics #OpenAccess

Happy to share a new preprint from my lab about intraspecific variability in anaerobic ciliate-methanogen symbioses with pop. gen. of single cells! Led by @micrott.bsky.social and Corinna Breusing, in collaboration with Ivan Cepicka. Funded by @simonsfoundation.org. www.biorxiv.org/content/10.1...

Check out our new preprint all about Pirsonia, a tiny killer of bloom-forming Coscinodiscus diatoms! www.biorxiv.org/content/10.1... #protistsonsky #marinemicrobes 🌊🔬

Promethea = PROvora + MEteora + HEmimastigophora. The new supergroup, unifying previously “orphan” lineages with gene-rich mitogenomes. Position of #telonemids is still uncertain. #protistsonsky tinyurl.com/yk9xkt49

𝗠𝗶𝗰𝗿𝗼𝗯𝗲 𝘄𝗶𝘁𝗵 𝗯𝗶𝘇𝗮𝗿𝗿𝗲𝗹𝘆 𝘁𝗶𝗻𝘆 𝗴𝗲𝗻𝗼𝗺𝗲 𝗺𝗮𝘆 𝗯𝗲 𝗲𝘃𝗼𝗹𝘃𝗶𝗻𝗴 𝗶𝗻𝘁𝗼 𝗮 𝘃𝗶𝗿𝘂𝘀 or maybe not. a 🧵 roland @environmicrobio.bsky.social‬ ‪and Krzysztof @ktjurdzinski.bsky.social‬ already commented, please also read their posts. www.science.org/content/arti... #MicroSky #SymbioSky #ProtistsOnSky

Our last paper just came out ! A great piece of work from the talented Laura Onillon and teammates with the pleasure to share this adventure with friendly collaborators @vincentdlft.bsky.social and @soldatilab.bsky.social !

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...

New paper on diatom phylogenomics from our lab. Ten years in the making, but it always took a backseat to student and postdoc papers. www.pnas.org/doi/10.1073/...

First post on Bluesky! Our paper on previously uncultured Group-TE Glissomonad protists has been published. Video teaser below. #protists #ProtistsOnSky journals.asm.org/doi/10.1128/...

With the « Life of Retaria » we do podcasts! Listen to the first one during which we interviewed @fabnot.bsky.social #protistsonsky

Congrats @sandinmm.bsky.social et al, very nice paper: www.cell.com/current-biol... #protistsonsky

Not sure I fully understand the problem, not being diatomologist, but facing similar problems in #centrohelids I still see no problem combining deep thinking on species conepts or bilogy of traits AND high-throughput practically applicable (automatic) techinques.The two can benefit from each other!

Defencive multicellarity, ha!

Why do some planktonic protists develop a gelatinous matrix? We suggest that this original adaptation is a strategy to cope with ocean oligotrophy: doi.org/10.1111/1462... Led by @n-llopis-m.bsky.social, and thanks to all co-authors, I'm very happy to finally see it out! #protistsonsky

If you can't be with the forams you love, love the forams you're with #Ammonia

A cellular entity retaining only its replicative core: Hidden archaeal lineage with an ultra-reduced genome https://www.biorxiv.org/content/10.1101/2025.05.02.651781v1

Algal symbiont diversity and host fitness variation in the amoebozoan photosymbiosis 🦠 by Yamagishi et al. @jeukmicro.bsky.social onlinelibrary.wiley.com/doi/full/10....

New image gallery- Meunier's 1910 Arctic Microplankton plates (all 37 with legends) - there be some oddities up there! #protistsonsky gallery.obs-vlfr.fr/gallery2/v/A...

#ISEPpapers 26: October 2024 to March 2025 www.isep-protists.com/post/iseppap... Your twenty-sixth digest of papers and preprints published by members of the International Society for Evolutionary Protistology is here! #Protists #Algae #Microbes #Evolution #Bacteria #Archaea #Symbiosis #Parasites

Watching animals eat is like my biology crack. I don’t need it, I don’t have to do it, I don’t even always like it, but there’s just something about critters noshing on one another that leaves me gobsmacked. And nothing does it like the comb jelly Beroe [Thread 🧵] 📽️ www.youtube.com/watch?v=1xkN...

☀️ #ProtistsOnSky ☀️

Happy to have played a small part in this. Prometheid is a proposed supergroup that contains previously deep orphan lineages. www.biorxiv.org/content/10.1... #protistsonsky