Krzysztof T Jurdzinski
@ktjurdzinski.bsky.social
PhD student at Anders Andersson's lab at KTH/SciLifeLab, Stockholm. Microbial ecologist, evolutionary biologist, bioinformatician.
https://ktjmicrobes.com/
https://ktjmicrobes.com/
Pinned
www.biorxiv.org
New preprint with @emma-bell.bsky.social, @doubleanders.bsky.social, Karin Garefelt et al.
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
Reposted by Krzysztof T Jurdzinski
Our latest preprint: Together with the team of Jan Löwe, @danieltamarit.bsky.social and many others we discovered and characterized several Asgard tubulin genes and propose that microtubule architecture and dynamics evolved in Asgard archaea prior to eukaryogenesis
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
February 16, 2026 at 4:43 PM
Our latest preprint: Together with the team of Jan Löwe, @danieltamarit.bsky.social and many others we discovered and characterized several Asgard tubulin genes and propose that microtubule architecture and dynamics evolved in Asgard archaea prior to eukaryogenesis
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
Reposted by Krzysztof T Jurdzinski
Reposted by Krzysztof T Jurdzinski
I’m loving this ciliate in slo-mo! Such beautiful cilia action. Keep watching to see it whizz about in real time. ID help appreciated!
#marineplankton 🦑
#marineplankton 🦑
February 15, 2026 at 8:00 PM
I’m loving this ciliate in slo-mo! Such beautiful cilia action. Keep watching to see it whizz about in real time. ID help appreciated!
#marineplankton 🦑
#marineplankton 🦑
Reposted by Krzysztof T Jurdzinski
Dear followers,
please follow @ap.brid.gy so that people on Mastodon (and the Fediverse in general) can see your posts, and you can see theirs. Spread the word and help keep the web open 🌱🕊️
Thank you!
please follow @ap.brid.gy so that people on Mastodon (and the Fediverse in general) can see your posts, and you can see theirs. Spread the word and help keep the web open 🌱🕊️
Thank you!
February 13, 2026 at 12:02 PM
Dear followers,
please follow @ap.brid.gy so that people on Mastodon (and the Fediverse in general) can see your posts, and you can see theirs. Spread the word and help keep the web open 🌱🕊️
Thank you!
please follow @ap.brid.gy so that people on Mastodon (and the Fediverse in general) can see your posts, and you can see theirs. Spread the word and help keep the web open 🌱🕊️
Thank you!
Reposted by Krzysztof T Jurdzinski
Most microbes don't live in shaking flasks; spatial structure shapes how microbes interact and evolve at every scale, as we discuss in our recent review @jeroenmeijer.bsky.social @simonvanvliet.bsky.social @bedutilh.bsky.social @bramvandijk.bsky.social and others
academic.oup.com/femsre/artic... 🧵👇
academic.oup.com/femsre/artic... 🧵👇
Spatial structure: shaping the ecology and evolution of microbial communities
Spatial structure naturally emerges in microbial communities, shaping growth, interactions, and evolution, and revealing how microscale processes scale up
academic.oup.com
February 12, 2026 at 3:46 PM
Most microbes don't live in shaking flasks; spatial structure shapes how microbes interact and evolve at every scale, as we discuss in our recent review @jeroenmeijer.bsky.social @simonvanvliet.bsky.social @bedutilh.bsky.social @bramvandijk.bsky.social and others
academic.oup.com/femsre/artic... 🧵👇
academic.oup.com/femsre/artic... 🧵👇
Dear followers,
please follow @ap.brid.gy so that people on Mastodon (and the Fediverse in general) can see your posts, and you can see theirs. Spread the word and help keep the web open 🌱🕊️
Thank you!
please follow @ap.brid.gy so that people on Mastodon (and the Fediverse in general) can see your posts, and you can see theirs. Spread the word and help keep the web open 🌱🕊️
Thank you!
February 13, 2026 at 12:02 PM
Dear followers,
please follow @ap.brid.gy so that people on Mastodon (and the Fediverse in general) can see your posts, and you can see theirs. Spread the word and help keep the web open 🌱🕊️
Thank you!
please follow @ap.brid.gy so that people on Mastodon (and the Fediverse in general) can see your posts, and you can see theirs. Spread the word and help keep the web open 🌱🕊️
Thank you!
Reposted by Krzysztof T Jurdzinski
Two more weeks to apply - come join us () in The Netherlands as a postdoctoral researcher on large-scale metagenomic exploration of new lineages!
I have a postdoc position in metagenomic exploration available in my group. Candidates with documented experience in phylo & metagenomics and preferably with petabase-scale data mining and GLM workflows are encouraged to apply. Come join us! 🧬🦠💻
Please repost
Apply here: www.wur.nl/en/vacancy/p...
Please repost
Apply here: www.wur.nl/en/vacancy/p...
February 12, 2026 at 7:46 AM
Two more weeks to apply - come join us () in The Netherlands as a postdoctoral researcher on large-scale metagenomic exploration of new lineages!
Reposted by Krzysztof T Jurdzinski
Please share!
PhD position at the University of Copenhagen. Start date: 1st of June!
The project integrates field work, RNAseq, MALDI-MSI & FISH to explore composition, regulation, and resilience of termite host-gut symbiont metabolism.
👉 employment.ku.dk/phd?show=156...
⏳ Deadline 23/2/26
PhD position at the University of Copenhagen. Start date: 1st of June!
The project integrates field work, RNAseq, MALDI-MSI & FISH to explore composition, regulation, and resilience of termite host-gut symbiont metabolism.
👉 employment.ku.dk/phd?show=156...
⏳ Deadline 23/2/26
February 11, 2026 at 7:39 PM
Please share!
PhD position at the University of Copenhagen. Start date: 1st of June!
The project integrates field work, RNAseq, MALDI-MSI & FISH to explore composition, regulation, and resilience of termite host-gut symbiont metabolism.
👉 employment.ku.dk/phd?show=156...
⏳ Deadline 23/2/26
PhD position at the University of Copenhagen. Start date: 1st of June!
The project integrates field work, RNAseq, MALDI-MSI & FISH to explore composition, regulation, and resilience of termite host-gut symbiont metabolism.
👉 employment.ku.dk/phd?show=156...
⏳ Deadline 23/2/26
Reposted by Krzysztof T Jurdzinski
Time lapse of an odd little monster. Presumably some kind of cercozoan from brackish water. #protistsonsky
February 6, 2026 at 10:17 PM
Time lapse of an odd little monster. Presumably some kind of cercozoan from brackish water. #protistsonsky
Reposted by Krzysztof T Jurdzinski
Now out & nicely formatted in @isme-microbes.bsky.social
A big analysis of ocean genomes & metagenomes co-led by former postdocs, now PIs, @gmdouglas.bsky.social & @cyanophage.bsky.social along with co-PIs @lbobay.bsky.social & Samuel Chaffron.
A few highlights... 🧵 (1/n)
doi.org/10.1093/isme...
A big analysis of ocean genomes & metagenomes co-led by former postdocs, now PIs, @gmdouglas.bsky.social & @cyanophage.bsky.social along with co-PIs @lbobay.bsky.social & Samuel Chaffron.
A few highlights... 🧵 (1/n)
doi.org/10.1093/isme...
Co-occurrence is associated with horizontal gene transfer across marine bacteria independent of phylogeny
Abstract. Understanding the drivers and consequences of horizontal gene transfer (HGT) is a key goal of microbial evolution research. Although co-occurring
doi.org
February 9, 2026 at 8:31 PM
Now out & nicely formatted in @isme-microbes.bsky.social
A big analysis of ocean genomes & metagenomes co-led by former postdocs, now PIs, @gmdouglas.bsky.social & @cyanophage.bsky.social along with co-PIs @lbobay.bsky.social & Samuel Chaffron.
A few highlights... 🧵 (1/n)
doi.org/10.1093/isme...
A big analysis of ocean genomes & metagenomes co-led by former postdocs, now PIs, @gmdouglas.bsky.social & @cyanophage.bsky.social along with co-PIs @lbobay.bsky.social & Samuel Chaffron.
A few highlights... 🧵 (1/n)
doi.org/10.1093/isme...
Reposted by Krzysztof T Jurdzinski
Happy to share a preprint—the last chapter of my dissertation with @mcsymbiont.bsky.social and Co—on what happens when bacterial endosymbionts accumulate huge numbers of pseudogenes during early genome reduction.
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
February 8, 2026 at 2:08 AM
Happy to share a preprint—the last chapter of my dissertation with @mcsymbiont.bsky.social and Co—on what happens when bacterial endosymbionts accumulate huge numbers of pseudogenes during early genome reduction.
www.biorxiv.org/content/10.6...
www.biorxiv.org/content/10.6...
Reposted by Krzysztof T Jurdzinski
FoldMason is out now in @science.org. It generates accurate multiple structure alignments for thousands of protein structures in seconds. Great work by Cameron L. M. Gilchrist and @milot.bsky.social.
📄 www.science.org/doi/10.1126/...
🌐 search.foldseek.com/foldmason
💾 github.com/steineggerla...
📄 www.science.org/doi/10.1126/...
🌐 search.foldseek.com/foldmason
💾 github.com/steineggerla...
Multiple protein structure alignment at scale with FoldMason
Protein structure is conserved beyond sequence, making multiple structural alignment (MSTA) essential for analyzing distantly related proteins. Computational prediction methods have vastly extended ou...
www.science.org
January 30, 2026 at 6:11 AM
FoldMason is out now in @science.org. It generates accurate multiple structure alignments for thousands of protein structures in seconds. Great work by Cameron L. M. Gilchrist and @milot.bsky.social.
📄 www.science.org/doi/10.1126/...
🌐 search.foldseek.com/foldmason
💾 github.com/steineggerla...
📄 www.science.org/doi/10.1126/...
🌐 search.foldseek.com/foldmason
💾 github.com/steineggerla...
Reposted by Krzysztof T Jurdzinski
Meet Leonie Johanna Lorenz 🇩🇪, a Predoctoral Fellow at EMBL-EBI who is bringing mathematical modelling to microbes.
Find out more about how Leonie’s passion for modelling patterns extends from bacterial evolution to sewing 🧵
www.ebi.ac.uk/about/news/p...
Find out more about how Leonie’s passion for modelling patterns extends from bacterial evolution to sewing 🧵
www.ebi.ac.uk/about/news/p...
February 2, 2026 at 9:58 AM
Meet Leonie Johanna Lorenz 🇩🇪, a Predoctoral Fellow at EMBL-EBI who is bringing mathematical modelling to microbes.
Find out more about how Leonie’s passion for modelling patterns extends from bacterial evolution to sewing 🧵
www.ebi.ac.uk/about/news/p...
Find out more about how Leonie’s passion for modelling patterns extends from bacterial evolution to sewing 🧵
www.ebi.ac.uk/about/news/p...
Reposted by Krzysztof T Jurdzinski
🧬 Our new paper in @ISMEJournal
"Cefiderocol resistance genes identified in environmental samples using functional metagenomics"
Led by Remi Gschwind and Etienne Ruppe as part of JPIAMR SEARCHER.
academic.oup.com/ismej/advanc...
#AMR #microsky
1/5
"Cefiderocol resistance genes identified in environmental samples using functional metagenomics"
Led by Remi Gschwind and Etienne Ruppe as part of JPIAMR SEARCHER.
academic.oup.com/ismej/advanc...
#AMR #microsky
1/5
Cefiderocol resistance genes identified in environmental samples using functional metagenomics
Abstract. Antibiotic resistance poses a global public health threat, which can originate from the transfer of environmental antibiotic resistance genes to
academic.oup.com
January 30, 2026 at 1:26 PM
🧬 Our new paper in @ISMEJournal
"Cefiderocol resistance genes identified in environmental samples using functional metagenomics"
Led by Remi Gschwind and Etienne Ruppe as part of JPIAMR SEARCHER.
academic.oup.com/ismej/advanc...
#AMR #microsky
1/5
"Cefiderocol resistance genes identified in environmental samples using functional metagenomics"
Led by Remi Gschwind and Etienne Ruppe as part of JPIAMR SEARCHER.
academic.oup.com/ismej/advanc...
#AMR #microsky
1/5
Reposted by Krzysztof T Jurdzinski
Join us at the Evolutionary Biology Centre at Uppsala University. We’re searching for an Assistant Professor in Biology. www.uu.se/en/about-uu/...
January 28, 2026 at 8:28 PM
Join us at the Evolutionary Biology Centre at Uppsala University. We’re searching for an Assistant Professor in Biology. www.uu.se/en/about-uu/...
Reposted by Krzysztof T Jurdzinski
Thrilled to see this paper finally out! journals.plos.org/ploscompbiol... It was a difficult story to communicate and took us a while to get right. Big congratulations to @wbjorn.bsky.social, Pablo Guridi and Flora Arias-Sanchez!! And thank you the reviewers who helped improve it. Keep reading...
Novel artificial selection method improves function of simulated microbial communities
Author summary Artificial selection has been extremely powerful in improving properties of complex biological or biochemical entities. The most familiar examples come from the breeding of animals and ...
journals.plos.org
January 27, 2026 at 1:41 PM
Thrilled to see this paper finally out! journals.plos.org/ploscompbiol... It was a difficult story to communicate and took us a while to get right. Big congratulations to @wbjorn.bsky.social, Pablo Guridi and Flora Arias-Sanchez!! And thank you the reviewers who helped improve it. Keep reading...
Reposted by Krzysztof T Jurdzinski
New preprint with @emma-bell.bsky.social, @doubleanders.bsky.social, Karin Garefelt et al.
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
www.biorxiv.org
January 26, 2026 at 11:16 AM
New preprint with @emma-bell.bsky.social, @doubleanders.bsky.social, Karin Garefelt et al.
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
Reposted by Krzysztof T Jurdzinski
Using machine learning to sort over 80,000 bacterial genomes into aerobes and anaerobes, researchers find that oxygen-breathing bacteria likely evolved in local oxygen-rich environments 200–400 million years before the Great Oxidation Event. In PNAS: https://ow.ly/jZWQ50Y3LhU
January 26, 2026 at 7:00 PM
Using machine learning to sort over 80,000 bacterial genomes into aerobes and anaerobes, researchers find that oxygen-breathing bacteria likely evolved in local oxygen-rich environments 200–400 million years before the Great Oxidation Event. In PNAS: https://ow.ly/jZWQ50Y3LhU
Reposted by Krzysztof T Jurdzinski
The impact of tokenizer selection in genomic language models
doi.org/10.1093/bioi...
doi.org/10.1093/bioi...
January 26, 2026 at 1:15 PM
The impact of tokenizer selection in genomic language models
doi.org/10.1093/bioi...
doi.org/10.1093/bioi...
New preprint with @emma-bell.bsky.social, @doubleanders.bsky.social, Karin Garefelt et al.
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
www.biorxiv.org
January 26, 2026 at 11:26 AM
New preprint with @emma-bell.bsky.social, @doubleanders.bsky.social, Karin Garefelt et al.
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
www.biorxiv.org
January 26, 2026 at 11:16 AM
New preprint with @emma-bell.bsky.social, @doubleanders.bsky.social, Karin Garefelt et al.
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
We assessed the use of 16S and 18S rRNA gene metabarcoding as input for machine learning models predicting abiotic and biotic factors.
www.biorxiv.org/content/10.6...
Reposted by Krzysztof T Jurdzinski
Recruitment for the EMBL International PhD Programme is officially open! 🔊
At EMBL, we train young scientists to become skilled and creative future leaders in academia, industry and other sectors. Start your career in the life sciences with us!
🔎 Read more here:
tinyurl.com/4jdt2ra5
At EMBL, we train young scientists to become skilled and creative future leaders in academia, industry and other sectors. Start your career in the life sciences with us!
🔎 Read more here:
tinyurl.com/4jdt2ra5
January 26, 2026 at 8:50 AM
Recruitment for the EMBL International PhD Programme is officially open! 🔊
At EMBL, we train young scientists to become skilled and creative future leaders in academia, industry and other sectors. Start your career in the life sciences with us!
🔎 Read more here:
tinyurl.com/4jdt2ra5
At EMBL, we train young scientists to become skilled and creative future leaders in academia, industry and other sectors. Start your career in the life sciences with us!
🔎 Read more here:
tinyurl.com/4jdt2ra5
Reposted by Krzysztof T Jurdzinski
Our latest. Led by the very talented @ahoiching.bsky.social
Cell cycle dysregulation of globally important SAR11 bacteria resulting from environmental perturbation www.nature.com/articles/s41... #jcampubs 🌊
Cell cycle dysregulation of globally important SAR11 bacteria resulting from environmental perturbation www.nature.com/articles/s41... #jcampubs 🌊
Cell cycle dysregulation of globally important SAR11 bacteria resulting from environmental perturbation - Nature Microbiology
Without key cell cycle control genes, SAR11 cells experience aneuploidy and growth inhibition when exposed to changes in nutrients, carbon sources or temperature stress, a vulnerability that may repre...
www.nature.com
January 22, 2026 at 2:24 PM
Our latest. Led by the very talented @ahoiching.bsky.social
Cell cycle dysregulation of globally important SAR11 bacteria resulting from environmental perturbation www.nature.com/articles/s41... #jcampubs 🌊
Cell cycle dysregulation of globally important SAR11 bacteria resulting from environmental perturbation www.nature.com/articles/s41... #jcampubs 🌊
Reposted by Krzysztof T Jurdzinski
from 2012. Microbial rhodopsins on leaf surfaces of terrestrial plants enviromicro-journals.onlinelibrary.wiley.com/doi/10.1111/...
January 22, 2026 at 12:14 PM
from 2012. Microbial rhodopsins on leaf surfaces of terrestrial plants enviromicro-journals.onlinelibrary.wiley.com/doi/10.1111/...
Reposted by Krzysztof T Jurdzinski
New paper out in Global Change Biology
Cheng et al.
Stressor Combinations Shift Soil Microbial Communities From Rare to Unknown Taxa and Alter Genomic Strategies
w/ @manudelbaq.bsky.social & others
onlinelibrary.wiley.com/doi/10.1111/...
Cheng et al.
Stressor Combinations Shift Soil Microbial Communities From Rare to Unknown Taxa and Alter Genomic Strategies
w/ @manudelbaq.bsky.social & others
onlinelibrary.wiley.com/doi/10.1111/...
Stressor Combinations Shift Soil Microbial Communities From Rare to Unknown Taxa and Alter Genomic Strategies
Effects of environmental stressor factor number on soil common, rare, and unknown taxa. High-stressor numbers reduce the abundance and diversity of rare taxa but increase unknown taxa and had no effe...
onlinelibrary.wiley.com
January 20, 2026 at 4:19 PM
New paper out in Global Change Biology
Cheng et al.
Stressor Combinations Shift Soil Microbial Communities From Rare to Unknown Taxa and Alter Genomic Strategies
w/ @manudelbaq.bsky.social & others
onlinelibrary.wiley.com/doi/10.1111/...
Cheng et al.
Stressor Combinations Shift Soil Microbial Communities From Rare to Unknown Taxa and Alter Genomic Strategies
w/ @manudelbaq.bsky.social & others
onlinelibrary.wiley.com/doi/10.1111/...