1. As we recently joined BlueSky, we want to repost this story for all newcomers! We sat down with @radler92.bsky.social to get more insight into the unique videos from his recent preprint on Promethearchaeota (formerly Asgard archaea). doi.org/10.1101/2025... (Videos and info below)

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...

New preprint out! Using ~75k environmental OTUs + 77 fossil calibrations, we reconstructed a Proterozoic timeline of eukaryote evolution. Our results show crown eukaryotes were already diversifying >1.6 Ga, long before the first undisputed fossils (~1.05 Ga). 🔗 DOI: www.biorxiv.org/content/10.6...

More than a year ago researchers from @hifmb.de and @icbm-uol.bsky.social started to write about different perspectives on marine biodiversity change from natural and social science perspectives. This morphed into a review paper that was published online today link.springer.com/article/10.1... 🧪

Text-mining tools have progressed a lot in the last two decades, and I'm excited to see what can be done now. More info chembl.blogspot.com/2025/12/new-... Apply here: embl.wd103.myworkdayjobs.com/EMBL/job/Hin... The position is at @ebi.embl.org #ScienceJobs #AcademicSky #ChemSky #BioSky [3/3]

The scikit-bio paper in online in Nature Methods! Many thanks to our collaborators, community contributors and reviewers! We couldn’t have done it without you. www.nature.com/articles/s41... #Bioinformatics #OpenSource

New paper out looking at mycobacterial diversity across soils, premise plumbing, and surface waters to try to figure out the source of environmentally-acquired mycobacterial infections: journals.asm.org/doi/epdf/10....

Respiratory endosymbionts, that allow their ciliate hosts to breathe nitrate instead of (or in addition to) oxygen are frequent members of the wastewater microbiome. 🦠 🖥️🧬 Great to see this work by @louison-nicolas.bsky.social published in ISME coummuncations! doi.org/10.1093/isme...

New publication: Functional diversity of #soil microbial communities increases with ecosystem development, by @ehannula.bsky.social and others. #landabandonment #landusechange #carboncycle doi.org/10.1038/s414...

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

Dramatic decline of Sargassum in the north Sargasso Sea since 2015 www.nature.com/articles/s41... #jcampubs 🌊

Microflora Danica: What can you learn from collecting and sequencing 10,000+ samples from a single country? Check out our new paper in @nature.com to find out. Incredible work led by Caitlin Singleton, Thomas B. N. Jensen, and Mads Albertsen from @aau.dk. 🦠🧫🧬 www.nature.com/articles/s41...

A promising route toward safer #plastics is now presented in @natsustain.nature.com 🧪🌎 “Chemical #pollution is one of the major global #EnvironmentalChallenges we face today,” says Oskar Karlsson, SciLifeLab/@stockholm-uni.bsky.social More ↓ www.scilifelab.se/news/on-the-... #BPA

It is an honour to receive this amazing support by the @kawresearch.bsky.social to decipher interactions between plasmid-dependent phages, plasmids and their shared bacterial host! Excited to work on this topic and explore the secrets of their coevolution! #ECOPHARM

Global survey: Your perspective can directly shape the Roadmap for Citizen Action on #NbS — a guide that policymakers will use to understand what communities need to restore and protect nature. Take the survey before 15 January. ➡️ thenatureofcities.typeform.com/to/iM8zPyV7

Rubisco is slow across the tree of life #photosynthesis #plants @pnas.org www.pnas.org/doi/10.1073/...

www.nature.com/articles/s41... #protistsonsky

Unveiling the global #urban #virome through #wastewater #metagenomics ... | #virus | #pathogens | #epidemiology | #gastrointestinal | Via @nature.com

Our world is one of impetuous life; once a new niche open, by a volcanic island or (now more often) retreating glaciers, generalist, metabolically flexible, microbial life will rush in to inhabit it and be the base of future succession. 🧪 Link: www.nature.com/articles/s41...

Need to predict whether a given contig in your assembly was circular in the environment? Here is a new program in #anvio ecosystem that will look into your BAM file and use paired-end read mapping data to conservatively assess circularity: anvio.org/help/main/pr...

📢 New preprint on bioRxiv! We introduce V4-EXT, a revised 16S rRNA V4 primer set that dramatically improves detection of Patescibacteria and other undersampled lineages ✅ 938 samples ✅ More novel ASVs Primer choice matters 👀 www.biorxiv.org/content/10.1... @ppjevac.bsky.social #HuifengHu

The surprising crab-trap–pulling behavior is described in this article: onlinelibrary.wiley.com/doi/10.1002/... We recently published a paper on how animal tool use is conceptualized, offering a framework to make sense of its different forms 👇📃 www.cambridge.org/core/journal... #evosky #philsci

I am very excited to announce that a fully funded PhD position is available in my group. Topic: Synergistic coevolution in mono-specific and multi-species microbial consortia Please RT or forward this information to interested candidates. Deadline: 11.01.26 More info: shorturl.at/f1TuF

I am very excited to start my new position as a Ramón y Cajal fellow @ageinves.bsky.social @cienciagob.bsky.social at the ICBiBE @uv.es! I'm coming home! It feels great to deliver new science for my country!

Optimized k-mer search across millions of bacterial genomes on laptops https://www.biorxiv.org/content/10.1101/2025.11.23.690050v1

Our new paper in PNAS summarises why the push to 'salvage' log dead trees won't reduce the risk of fast wildfires as has been claimed. www.pnas.org/doi/10.1073/...

Come join us! Soon I will be advertising a postdoc vacancy in my group as part of my @erc.europa.eu AdG project 'DARK ROOTS'. Focus of the project will be on phylo- and metagenomic mining of novel prokaryotic lineages. I will soon post a link here - stay tuned, and please repost! #asgardarchaea

Overestimated natural biological nitrogen fixation translates to an exaggerated CO2 fertilisation effect in Earth system models ...meaning models may overestimate future plant carbon uptake as CO2 rises Better nitrogen modelling = better climate predictions www.pnas.org/doi/10.1073/...

Just uploaded our new preprint to @ecoevorxiv.bsky.social Multinucleate life really is everywhere...from deep sea forams to slime molds, intracellular parasites, and beyond. 🚀 We explore how scaling, ecology, & evolution intersect when many nuclei share a single cytoplasm. doi.org/10.32942/X2M...

The cold water tintinnid ciliate Parafavella elegans & some diatoms from the Chukchi Sea last summer- almost the end of the Arctic samples....

So happy to announce our new preprint, “A geothermal amoeba sets a new upper temperature limit for eukaryotes.” We cultured a novel amoeba from Lassen Volcanic NP (CA, USA) that divides at 63°C (145°F) 🔥 - a new record for euk growth! #protistsonsky 🧵

Models and co-culture experiments assess four mechanisms of phytoplankton–bacteria interactions www.nature.com/articles/s41... #jcampubs

I am pleased to announce our latest paper on #nutrient availability and impact on the microbial ecology of acidic pit lakes. It takes us a step closer to understand nutrient cycling in these #extreme #environments for the development of in situ bioremediation. doi.org/10.3390/min1...

We just launched the Kickstarter campaign of MicroMates, a card game that brings the hidden world of microorganisms to life in a fun, colorful, and scientifically inspired way. Please back us up and spread the word! micromates.se

Our paper describing the GlobDB is now published in @bioinfoadv.bsky.social doi.org/10.1093/bioa... The GlobDB is the largest species dereplicated genome database currently available, containing 306,260 species representatives. More information on globdb.org 1/5 🖥️🧬🦠

📢 Save the Date: Biodiversity Monitoring Week is coming! #BioMonWeek2026 📅 4-8 May 📍 Montpellier (FR) The new European forum for cooperation and innovation in biodiversity monitoring, gathering researchers, practitioners, policymakers, private sector & students. Don't miss out!

Is it a flagellate? A tiny ball with tentacles? Contamination in my ciliate culture? NEW SUPERGROUP OF EUKARYOTES? Yes to all 4! Meet Solarion - just out in #Nature doi.org/10.1038/s415... Huge congrats to Marek Valt, Cepicka Lab & the star team! Very happy to be part of this project. #ProtistsOnSky

Out today, our take on 6-methyladenine #6mA evolution in Eukaryotes @natgenet.nature.com. We asked a simple question, is really DNA 6mA common across the eukaryotes? The answer is "yes" if you're a unicellular eukaryote 🦠, not so if you're multicellular 🐝🌱🍄. www.nature.com/articles/s41... 1/9

PhD studentship opportunity! Join us at St Andrews to study the factors controlling plasmid transmission in the gut. Competition-funded as part of the EASTBIO DTP, co-supervised with Dr Jaclyn Pearson. Please share & pass on to anyone interested! 🦠🧫 Deadline 15th December👇

how to breathe oxygen at a distance? the cable bacteria apparently know the trick: wired... #MicroSky

Bacteria have to adapt rapidly to changes in environment. Can they ‘remember’ those conditions? Another one for my “to read” pile! cc @microberamon.bsky.social @victoriachu.bsky.social @nickyuen.bsky.social @fratorelli.bsky.social #UTISky #MicroSky

Conserved genetic markers reveal widespread diatom sexual reproduction in the global ocean | Nature Communications https://www.nature.com/articles/s41467-025-65296-9

We met with the “RNA guy” of the study, @marcfriedlander.bsky.social, who teamed up with @lovedalen.bsky.social (@stockholm-uni.bsky.social/@cpgsthlm.bsky.social) & @marmole6.bsky.social (@ucph.bsky.social) 🧪⚒️ Feature article here ↓ 🖥️ 🧬 www.scilifelab.se/news/worlds-...

The core genomic backbone of bacteria is not necessarily resilient to gene flow! A new study shows that introgression impacts, on average, 2% of the core genes of species - www.nature.com/articles/s41... #microevo #microeco #evolution

“Bin Chicken” is now published in Nature Methods! It substantially improves genome recovery through rational coassembly 🧬🖥️. Applied to public 🌍 metagenomes, we recovered 24,000 novel species 🦠, including 6 new phyla. doi.org/10.1038/s415... @benjwoodcroft.bsky.social @rhysnewell.bsky.social 🧵1/6

Tree Trunk Microbiomes Trees trunks, which comprise the largest reservoir of biomass on Earth, also contain their own microbiomes.

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

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

Opportunity! Anybody knows of young marine ecologists (within 7 years from earned PhD) that would like to come to Gothenburg, Sweden, for a nationally funded Assistant Professorship? It is highly competitive but well funded. (1) of (3)

And just when you thought things were settling down, the enigmatic Asgard archaea have another surprise in store! Cell cycle/life cycle stage-specific internal compartments with almost no eukaryote-derived clues as to how they might function. Beautiful tomography and microscopy - congrats all 🤩