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
Distinct bacterial and protist plankton diversity dynamics uncovered through DNA-based monitoring in the Baltic Sea area
Planktonic microorganisms in coastal waters form the base of food webs and biogeochemical cycles. The Baltic Sea area, with its pronounced environmental gradients, serves as a model coastal environmen...
www.biorxiv.org
1/10
The latest preprint in my PhD just went through a major internal revision. More focused and less confounded, it deserves re-introduction.
Highlight still the same: Bacteria are ecologically more sensitive to salinity than protists.
www.biorxiv.org/content/10.1...
#MicroSky #ProtistsOnSky
The latest preprint in my PhD just went through a major internal revision. More focused and less confounded, it deserves re-introduction.
Highlight still the same: Bacteria are ecologically more sensitive to salinity than protists.
www.biorxiv.org/content/10.1...
#MicroSky #ProtistsOnSky
Reposted by Krzysztof T Jurdzinski
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
September 25, 2025 at 6:15 PM
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
Reposted by Krzysztof T Jurdzinski
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
🖥️🧬🦠
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
🖥️🧬🦠
GlobDB: a comprehensive species-dereplicated microbial genome resource
AbstractMotivation. Over the past years, substantial numbers of microbial species’ genomes have been deposited outside of conventional INSDC databases.Resu
doi.org
November 21, 2025 at 4:21 PM
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
🖥️🧬🦠
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
🖥️🧬🦠
Reposted by Krzysztof T Jurdzinski
📢 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!
📅 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!
November 20, 2025 at 10:00 AM
📢 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!
📅 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!
Reposted by Krzysztof T Jurdzinski
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
November 19, 2025 at 9:39 PM
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
Reposted by Krzysztof T Jurdzinski
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
Adenine DNA methylation associated with transcriptionally permissive chromatin is widespread across eukaryotes - Nature Genetics
Long-read sequencing in 18 unicellular eukaryotes reveals that 6mA is widespread across eukaryotes and is enriched at transcriptionally permissive regions, which are also marked by H3K4me3.
www.nature.com
November 18, 2025 at 12:00 PM
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
Reposted by Krzysztof T Jurdzinski
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👇
www.findaphd.com
November 18, 2025 at 11:41 AM
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👇
Reposted by Krzysztof T Jurdzinski
how to breathe oxygen at a distance? the cable bacteria apparently know the trick: wired...
#MicroSky
#MicroSky
Metal scaffolds turn bacteria into live wires
Mud-dwelling cable bacteria construct metal organic frameworks to grow
www.science.org
November 17, 2025 at 5:39 PM
how to breathe oxygen at a distance? the cable bacteria apparently know the trick: wired...
#MicroSky
#MicroSky
Reposted by Krzysztof T Jurdzinski
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
#Review
Bacteria can “remember” past environments through genetic & biochemical imprints helping them adapt and thrive! 🦠🧠
#MicroSky
www.nature.com/articles/s41...
Bacteria can “remember” past environments through genetic & biochemical imprints helping them adapt and thrive! 🦠🧠
#MicroSky
www.nature.com/articles/s41...
Exploring the concept of bacterial memory - Nature Microbiology
This Perspective discusses the concept, mechanisms and evidence for memory in bacteria at individual and community levels.
www.nature.com
November 18, 2025 at 9:13 AM
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
Reposted by Krzysztof T Jurdzinski
Conserved genetic markers reveal widespread diatom sexual reproduction in the global ocean | Nature Communications https://www.nature.com/articles/s41467-025-65296-9
Conserved genetic markers reveal widespread diatom sexual reproduction in the global ocean - Nature Communications
Diatoms dominate the oceans, yet sexual reproduction - key to bloom dynamics and species evolvability - is rarely observed. Using a lab-to-field approach, this study presents conserved markers applicable across datasets, revealing widespread sex in both abundant and rare taxa in diatom natural populations.
www.nature.com
November 15, 2025 at 9:29 AM
Conserved genetic markers reveal widespread diatom sexual reproduction in the global ocean | Nature Communications https://www.nature.com/articles/s41467-025-65296-9
Reposted by Krzysztof T Jurdzinski
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-...
Feature article here ↓ 🖥️ 🧬
www.scilifelab.se/news/worlds-...
The world’s oldest RNA extracted from woolly mammoth: “gives us a completely different picture”
The timespan of when RNA is possible to extract is now pushed back by tens of thousands of years, with researchers now hoping to spark a RNA revolution, after sequencing a woolly mammoth preserved in ...
www.scilifelab.se
November 14, 2025 at 4:11 PM
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-...
Feature article here ↓ 🖥️ 🧬
www.scilifelab.se/news/worlds-...
Reposted by Krzysztof T Jurdzinski
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
Introgression impacts the evolution of bacteria, but species borders are rarely fuzzy - Nature Communications
It is commonly thought that bacterial species borders tend to be fuzzy, due to frequent exchange of DNA. Here, Diop et al. quantify the patterns of gene flow between core genomes across 50 major bacte...
www.nature.com
November 14, 2025 at 10:23 AM
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
Reposted by Krzysztof T Jurdzinski
“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
doi.org/10.1038/s415...
@benjwoodcroft.bsky.social @rhysnewell.bsky.social
🧵1/6
November 13, 2025 at 10:09 AM
“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
doi.org/10.1038/s415...
@benjwoodcroft.bsky.social @rhysnewell.bsky.social
🧵1/6
Reposted by Krzysztof T Jurdzinski
Tree Trunk Microbiomes
Trees trunks, which comprise the largest reservoir of biomass on Earth, also contain their own microbiomes.
Trees trunks, which comprise the largest reservoir of biomass on Earth, also contain their own microbiomes.
Tree Trunk Microbiomes
Trees trunks, which comprise the largest reservoir of biomass on Earth, also contain their own microbiomes.
smallthingsconsidered.blog
November 13, 2025 at 9:00 AM
Tree Trunk Microbiomes
Trees trunks, which comprise the largest reservoir of biomass on Earth, also contain their own microbiomes.
Trees trunks, which comprise the largest reservoir of biomass on Earth, also contain their own microbiomes.
Reposted by Krzysztof T Jurdzinski
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
November 12, 2025 at 9:50 AM
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
Reposted by Krzysztof T Jurdzinski
Reposted by Krzysztof T Jurdzinski
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)
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)
November 10, 2025 at 9:32 AM
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)
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)
Reposted by Krzysztof T Jurdzinski
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 🤩
Beautiful tomography and microscopy - congrats all 🤩
An Asgard archaeon with internal membrane compartments
Brilliant study led by @fmacleod.bsky.social and Andriko von Kügelgen. Tight collaboration with @buzzbaum.bsky.social and lab. Congrats to all authors!
www.biorxiv.org/content/10.1...
Brilliant study led by @fmacleod.bsky.social and Andriko von Kügelgen. Tight collaboration with @buzzbaum.bsky.social and lab. Congrats to all authors!
www.biorxiv.org/content/10.1...
November 7, 2025 at 10:56 AM
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 🤩
Beautiful tomography and microscopy - congrats all 🤩
Reposted by Krzysztof T Jurdzinski
#microsky #mevosky @spp2389.bsky.social
A PhD position is available in my lab to work on:
Emergence and self-organisation of bacterial metabolism in consortia of cross-feeding bacteria.
Please RT
Deadline: 12.11.25
More infos 👇
shorturl.at/rAKAT
A PhD position is available in my lab to work on:
Emergence and self-organisation of bacterial metabolism in consortia of cross-feeding bacteria.
Please RT
Deadline: 12.11.25
More infos 👇
shorturl.at/rAKAT
October 28, 2025 at 8:43 AM
#microsky #mevosky @spp2389.bsky.social
A PhD position is available in my lab to work on:
Emergence and self-organisation of bacterial metabolism in consortia of cross-feeding bacteria.
Please RT
Deadline: 12.11.25
More infos 👇
shorturl.at/rAKAT
A PhD position is available in my lab to work on:
Emergence and self-organisation of bacterial metabolism in consortia of cross-feeding bacteria.
Please RT
Deadline: 12.11.25
More infos 👇
shorturl.at/rAKAT
Reposted by Krzysztof T Jurdzinski
Our new paper on what heterotrophic nanoflagellates do in nature doi.org/10.1111/1462... or www.biorxiv.org/cgi/content/.... Data available at doi.org/10.5281/zeno.... Funded by @ncn.gov.pl #ProtistsOnSky
High‐Temporal Resolution of Microbial Food Web Dynamics and Structure During Phytoplankton Blooms in the Baltic Sea
Heterotrophic nanoflagellates are typically considered to be bacterial grazers, but some are actually omnivores and predators, both eating also other eukaryotes. Thanks to a high-frequency sampling c...
doi.org
October 31, 2025 at 7:55 PM
Our new paper on what heterotrophic nanoflagellates do in nature doi.org/10.1111/1462... or www.biorxiv.org/cgi/content/.... Data available at doi.org/10.5281/zeno.... Funded by @ncn.gov.pl #ProtistsOnSky
Reposted by Krzysztof T Jurdzinski
This paper has been a must! Great collaboration with @mkrupovic.bsky.social and @yifanzhou.bsky.social, a N&V by a legend of halophilic archaea tinyurl.com/yc3dcv72, and one picture of one of our expeditions to Dallol making the cover of the November issue of @natmicrobiol.nature.com
rdcu.be/eLtCH
rdcu.be/eLtCH
November 2, 2025 at 5:52 PM
This paper has been a must! Great collaboration with @mkrupovic.bsky.social and @yifanzhou.bsky.social, a N&V by a legend of halophilic archaea tinyurl.com/yc3dcv72, and one picture of one of our expeditions to Dallol making the cover of the November issue of @natmicrobiol.nature.com
rdcu.be/eLtCH
rdcu.be/eLtCH
Reposted by Krzysztof T Jurdzinski
Great to see this finally published!
Metalog: curated and harmonised contextual data for global metagenomics samples
now out in @narjournal.bsky.social
academic.oup.com/nar/advance-...
Metalog: curated and harmonised contextual data for global metagenomics samples
now out in @narjournal.bsky.social
academic.oup.com/nar/advance-...
Metalog: curated and harmonised contextual data for global metagenomics samples
Abstract. Metagenomic sequencing enables the in-depth study of microbes and their functions in humans, animals, and the environment. While sequencing data
academic.oup.com
October 31, 2025 at 3:16 PM
Great to see this finally published!
Metalog: curated and harmonised contextual data for global metagenomics samples
now out in @narjournal.bsky.social
academic.oup.com/nar/advance-...
Metalog: curated and harmonised contextual data for global metagenomics samples
now out in @narjournal.bsky.social
academic.oup.com/nar/advance-...
Reposted by Krzysztof T Jurdzinski
This week we were sampling #coccolithophores #protistsonsky
on a beautiful Adriatic coast, again.
#CoccoChannel
Here presenting miss Helicosphaera 🌊🦠🧫🔬
on a beautiful Adriatic coast, again.
#CoccoChannel
Here presenting miss Helicosphaera 🌊🦠🧫🔬
October 31, 2025 at 10:03 AM
This week we were sampling #coccolithophores #protistsonsky
on a beautiful Adriatic coast, again.
#CoccoChannel
Here presenting miss Helicosphaera 🌊🦠🧫🔬
on a beautiful Adriatic coast, again.
#CoccoChannel
Here presenting miss Helicosphaera 🌊🦠🧫🔬
Reposted by Krzysztof T Jurdzinski
🚨 Come and work with us 🦠🧪🖥️
Postdoc position with lots of freedom available in my group
- 1.5 years with options to extend
- work on ecogenomics and physiology of N/CH4-cyclers
- remote work possible 🤓
more info here: isme-microbes.org/postdoc-ecog...
#microbesky
Postdoc position with lots of freedom available in my group
- 1.5 years with options to extend
- work on ecogenomics and physiology of N/CH4-cyclers
- remote work possible 🤓
more info here: isme-microbes.org/postdoc-ecog...
#microbesky
Postdoc in ecogenomics and physiology of nitrifiers/methane-cyclers – ISME
isme-microbes.org
October 29, 2025 at 3:39 PM
🚨 Come and work with us 🦠🧪🖥️
Postdoc position with lots of freedom available in my group
- 1.5 years with options to extend
- work on ecogenomics and physiology of N/CH4-cyclers
- remote work possible 🤓
more info here: isme-microbes.org/postdoc-ecog...
#microbesky
Postdoc position with lots of freedom available in my group
- 1.5 years with options to extend
- work on ecogenomics and physiology of N/CH4-cyclers
- remote work possible 🤓
more info here: isme-microbes.org/postdoc-ecog...
#microbesky
Reposted by Krzysztof T Jurdzinski
Lovely to receive the first copies of my new book, "Life on a Little-Known Planet." Thanks to www.evangaffneydesign.com for the great cover design.
October 29, 2025 at 9:28 AM
Lovely to receive the first copies of my new book, "Life on a Little-Known Planet." Thanks to www.evangaffneydesign.com for the great cover design.
Reposted by Krzysztof T Jurdzinski
Want to know how diverse soil really is?
Our ultra deep sequencing is now published in GigaScience: academic.oup.com/gigascience/...
Soil is wild! Thanks for leading the study @canerbagci.bsky.social
#secmet #soil #metagenomics #bacterialdiversity
Our ultra deep sequencing is now published in GigaScience: academic.oup.com/gigascience/...
Soil is wild! Thanks for leading the study @canerbagci.bsky.social
#secmet #soil #metagenomics #bacterialdiversity
Ultra-deep long-read metagenomics captures diverse taxonomic and biosynthetic potential of soil microbes
AbstractBackground. Soil ecosystems have long been recognised as hotspots of microbial diversity, but most estimates of their microbial and functional comp
academic.oup.com
October 28, 2025 at 3:08 PM
Want to know how diverse soil really is?
Our ultra deep sequencing is now published in GigaScience: academic.oup.com/gigascience/...
Soil is wild! Thanks for leading the study @canerbagci.bsky.social
#secmet #soil #metagenomics #bacterialdiversity
Our ultra deep sequencing is now published in GigaScience: academic.oup.com/gigascience/...
Soil is wild! Thanks for leading the study @canerbagci.bsky.social
#secmet #soil #metagenomics #bacterialdiversity