We are looking for candidates to fill a PhD position in Grenoble, France. Please share with anyone interested in microbial symbioses! #dinoflagellate #symbiosis www.linkedin.com/posts/johan-...

Our next DinoSphere seminar will be June 18th at 9 AM PDT / 6 PM CEST hosting Jana Pilátová and @gracezhong.bsky.social 🪱 Grace Zhong: Symbiont mobility in a dinoflagellate–acoel worm symbiosis 🪩 Jana Pilátová: Eyespots as photonic mirrors in Symbiodiniaceae More details on tinyurl.com/43uckr2w!

And now it's out! Happy that PNAS selected for the cover this SEM image snapped by @samjlord.bsky.social, one of the most evocative visualizations of Euplotes that I have ever encountered. www.pnas.org/doi/10.1073/... Stay tuned for what is shaping up to be some fascinating follow-up in the lab...

Interested in working on the evolution of photosynthetic endosymbioses? Come join us! I have 2 open positions in my new group @cemess.bsky.social in Vienna 3yr postdoc info: tinyurl.com/4emkjpn4 4yr PhD info: tinyurl.com/mtxmsjpy Apply by 1st June! Please share/repost #Protists #Symbiosis #PhD

Check out the draft program for the Comparative Genomics of Unicellular Eukaryotes meeting! Want to attend? Are you a speaker? Don't wait! Registration is closes on May 4. comparativegenomics2026.com/program/ w/ @cstairs.bsky.social

GOOD NEWS! Our BRILLIANT Red-ALERT CDT (@redalertcdt.bsky.social) has funding for one more home studentship at the University of Bath so we're re-advertising this project! New deadline: May 18th Come explore protist and invertebrate diversity with us!

Another excellent talk by @fmikus.bsky.social: an extraordinarily beautifully illustrated pitch for expansion microscopy, improving all the time thanks to Felix & team's efforts with antibodies, etc. #ISOP2026

Alastair Simpson poking a new petalomonas at @protistologyopen.bsky.social #protistsonsky

ISOP-sponsored symposium on protistan symbioses across the Tree of Life went fantastic! Thanks all contributors (Ondrej, Gillian, and @mixotrophe.bsky.social) and the best co-host, @nicolecoots.bsky.social! #ProtistsOnSky @protistologyopen.bsky.social

Tune in this week to the DinoSphere seminar to hear Rocío Mozo Muñoz (IBE-UPF-CSIC) talk about her work in phylogenomics of Symbiodiniaceae! 📆 16 April - 9AM CEST 🔗 tinyurl.com/5fje3s55 @ehehenberger.bsky.social @manondemulder.bsky.social @chandnibhickta.bsky.social Norico Yamada, Edmée Royen

Attending Protistology Open? Check out @nicolecoots.bsky.social & I's ISOP-sponsored symposium "The Symbiotic Continuum across the Tree of Life" (April 20th @ 11 AM)! We have an amazing lineup of speakers including Ondřej Pomahač, @mixotrophe.bsky.social, & Gillian Gile #ProtistsOnSky #Symbiosis

If you are protist enthusiast early in your career and you want hands-on training in collecting and handling protists for all your research goals, please apply to join us in Roscoff for a week-long course this summer! opbc.sciencesconf.org

New #ISEPpapers! Single‐Cell Transcriptomes and Phylogenomic Analysis of Uncultivated #Oxymonads: Morelia Trznadel et al. pmc.ncbi.nlm.nih.gov/articles/PMC... #Protists #Microbes #Evolution #TreeOfLife #Phylogeny

Single-cell transcriptomics reveals a new marine parasite: Characterization and distribution of Rozellomyces from the Gulf of Alaska ⛴️🔬🌊 Congrats Adarsh and all co-authors: @protistwtmostest.bsky.social, Gordon, @pjkeelinglab.bsky.social, and Naomi! #ProtistsOnSky

My new spiritual eukaryote is ciliate in Si helmet swimming towards North pole ⚔️. Definitely an amazing reading from Bolzoni et al. "Magnetoreception in a freshwater ciliate arises from endosymbiosis." 10.1038/s41467-026-70462-8 for #protistsonsky

My friends in the Life of Retaria group decided to make a podcast! In the first episode, they interview @fabnot.bsky.social about his journey as a scientist. I loved the first episode, hope you do too! @juliemeilland.bsky.social @sandinmm.bsky.social et al. thelifeofretaria.github.io/podcast.html

Excited to announce I’m starting a new lab at @gmivienna.bsky.social (Vienna BioCentre) in Sept 2026 We study how carbon fixation is inherited and maintained in algae using cryo-ET, imaging, environmental sampling&more Looking for people who want to build the lab together, get in touch! #teamtomo

Protist lovers: Please apply for a week of rhapsody! Learn by doing: MicroSEA (Microbial Sea Eukaryotes) course is a one-week, field-based summer school to train early-career researchers in the diversity, ecology, and single-cell biology of marine protists. opbc.sciencesconf.org #protistsonsky

If you are protist enthusiast early in your career and you want hands-on training in collecting and handling protists for all your research goals, please apply to join us in Roscoff for a week-long course this summer! opbc.sciencesconf.org

Great to see this paper in all its glory online: link.springer.com/article/10.1... A huge effort from Gordon and the team at @pjkeelinglab.bsky.social! Phylogenomic tree of Cercozoa based on single-cell transcriptomes from 100 uncultured cells @ubcbotany.bsky.social @science.ubc.ca

Applications are now open for our EMBO Practical Course in Computational and Experimental Microbiomics! 🧫🔬🖥️ meetings.embo.org/event/26-mic... Come learn a mix of computational and experimental microbiome techniques from 6-8th July in beautiful Bath, UK! Registration Deadline: 11 May 2026

open.spotify.com/episode/1iYc... #ProtistsOnSky

Spatial Proteomics Workshop for Protists (see more in thread below) Registration Early Bird Monday 22nd June 2026. Regular Monday 10th August 2026. There will be a conference dinner on day 1. To register visit protistology.org.uk/autumn-meeti...

onlinelibrary.wiley.com/doi/10.1111/... #protistsonsky

Out now in Environmental Microbiome! 🧬 By re-analyzing microbialite sequencing data, we show that chromerid algae (the closest photosynthetic relatives of apicomplexans) are consistent and widespread associates of microbialites across diverse marine and freshwater environments worldwide 🌎

If you're interested in biodiversity in freshwater ecosystems, there's just a few days to apply for our PhD project: Ecological Surveillance using High-Throughput Quantitative Imaging at @uniofbath.bsky.social . Deadline: January 16th! Apply: is.gd/svXBcr Image: www.planktoscope.org/how-it-works

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...

One more week to apply to this PhD position on working out an endosymbiosis relationship in a protist. Please share widely to prospective PhD student #protistsonsky

🎉 There are currently 4 opportunities to join the Holt lab in beautiful Bath! 🎉 If you're interested in protists, parasites, and/or biodiversity then please check out our website: theholtlab.com/posts/ln5-21... 🚨 Deadlines vary between project. ✉️ Please reach out if you have any questions!

🥶Our GW4+ PhD project exploring polar protist diversity is accepting applications!🥶 With @tweethinking.bsky.social (@uniofbath.bsky.social) and Melody Clark (@bas.ac.uk), you will uncover the ecological roles, evolutionary histories, and environmental adaptions of polar protists! Interested? 👀

Charting the landscape of cytoskeletal diversity in microbial eukaryotes: Cell www.cell.com/cell/fulltex...

Phylogenomic analysis of deep-branching telonemid #protistsonsky academic.oup.com/gbe/advance-...

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

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

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

I'm looking for a PhD student to dive into some protist genomes and maybe find some cool parasites like this (very flexible) apicomplexan. www.findaphd.com/phds/project... Please do reach out if you're interested. And APPLY EARLY! The advert will be taken down when a suitable candidate is found.🪱🦀🐟

What could be more exciting than watching Euplotes scurry around under the microscope? How about adding some raptorial predation by supergiant cannibal cells? www.biorxiv.org/content/10.1... Video by Vittorio Boscaro. 1/n

After a four-year investigation, a breakthrough study reveals the cause of sea star wasting disease (SSWD). A strain of the bacterium Vibrio pectenicida is the culprit behind the marine epidemic that has killed billions of sea stars since 2013. Read the study: 🔗https://tinyurl.com/4rcb3xpf

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

New protist supergroup: Promethea! From @zlatogursky.bsky.social et al #ProtistsOnSky

We’re kicking off the DinoSphere Online Seminar Series! Join us for our first session with Karel Mockaer (Heidelberg) & Yong Heng Phua (OIST) 📅 1 July 9AM CEST 🔗 tinyurl.com/4mjaverj Spread the word! @protistwtmostest.bsky.social @ehehenberger.bsky.social @chandnibhickta.bsky.social&Norico Yamada

POSTDOC position available in Ceske Budejovice & Cambridge, funded by ERC KLEPTOS, to study plastid endosymbiosis in kleptoplastidic taxa with spatial proteomics. Are you curious about this process and interested in proteomics and data analysis? Join us by applying here: jobs.bc.cas.cz/en/detail/250

New #ISEPpapers! Hijacking and integration of algal #plastids and #mitochondria in a polar planktonic host: Ananya Kedige Rao et al. www.cell.com/current-biol... #Microbes #Algae #Protists #Symbiosis #Organelles #Plankton

fourth and final chapter of my PhD is out! 🚨 We used single cell metabarcode sequencing to describe the diversity of organisms associated with polycystine radiolarians near Bermuda. we found that polycystines associate with a really wide diversity of phytoplankton, compared to other radiolarians! 🤩

Check our paper by @nicolecoots.bsky.social, where she delved into the photosynthetic symbionts on Polycystine #Rhizaria. Nicole came to @biosstation.bsky.social after having to drastically change her dissertation due to COVID, So proud of you, Nicole, keep going! academic.oup.com/plankt/artic...

Yet to share our recent paper “Phylogenomic resolution of marine to freshwater dinoflagellate transitions” led by Mahara and @protistwtmostest.bsky.social. Includes work from two @science.ubc.ca undergraduates! 🤩 Freshwater dinoflagellates need more love! 💚 academic.oup.com/ismej/articl...

@amoebadiscovery.bsky.social made an iteresting interview with me about #heliozoa and #centrohelids - I think these organisms are really important, understudied and gorgeous 😍 Also lots other intresting reading and beatiful pictures! #protistsonsky link: tinyurl.com/adiscovery1

PhD position available in Ceske Budejovice (Czechia), funded by ERC KLEPTOS, to study plastid endosymbiosis in kleptoplastidic protists. Are you curious about this process and do you like sampling/cultivation of protists? Join our team by applying here: jobs.bc.cas.cz/en/detail/243 #protistsonsky

🚨New preprint🚨 Here we provide the first evidence for a non-anthozoan host of Corallicolids: the bearded fire worm (Hermodice carunculata) 🪱🔥 #ProtistsOnSky #Symbiosky #CoralReefs

academic.oup.com/ismej/advanc... #protistsonsky