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Ella Sieradzki

@sieravirus.bsky.social
739 followers 385 following 116 posts

Assistant professor @ Aarhus University | ERC starting 2024 | Microbial/viral ecology | crazy cat lady | @EMG_Lyon @jemersonmicro @UCBerkeley @Firestone_lab @BanfieldLab @JedFuhrman 🇮🇱🇺🇦

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Ella Sieradzki @sieravirus.bsky.social · 21/08/2026
Fun time at #ISME20 with old and new friends
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Ella Sieradzki @sieravirus.bsky.social · 09/04/2026
Deadline is April 20th! Let’s get those viruses
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Ingrida Olendraite @ingrida.bsky.social · 16/03/2026
RNA virus Journal Club is on! 🌳March 17th | Tuesday, 10 AM Berkeley time / 18 PM CET 🕰️ You've probably heard about the meta-virus resource? We will get to dive into metaVR database & huge viral diversity within thanks to @mattlabguy.bsky.social 🥳 All welcome! Details ⬇️ @rdrpsummit.bsky.social
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Ella Sieradzki @sieravirus.bsky.social · 09/03/2026
I'm hiring my first postdoc! Apply by 20/4/26, position #20443. Seeking an environmental microbiologist with experience in metagenomics (preferably viromics) and molecular biology. Experience with targeted metabolomics is a plus. international.au.dk/about/profil...
international.au.dk
Postdoc in Soil viral ecology - Vacancy at Aarhus University
Vacancy at Department of Agroecology - Plant Pathology and Microbiology, Aarhus University
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Ella Sieradzki @sieravirus.bsky.social · 03/02/2026
Soil viral ecology notice: having found myself rejecting paper after paper for the same reason, let me make this clear. If you're trying to draw conclusions about the drivers/effects of the viral community but your data is from bulk metagenomes, not viromes, that's an automatic no from me. 1/n
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Ella Sieradzki @sieravirus.bsky.social · 30/01/2026
Provisionally accepted! Proceedings of the 2nd RdRp summit on RNA viruses out in Frontiers in virology. I attended the 1st RdRp summit, was an organizer of the 2nd but broke my leg and had to bail. Hoping to see more virus enthusiasts at the 3rd summit in 2027! www.frontiersin.org/journals/vir...
frontiersin.org
Frontiers | Editorial: "Proceedings of the RdRp Summit and Advances in RNA Virus Discovery"
Following the success of the first meeting, the second RdRp Summit was held on May 11-12, 2025, 40 in Lisbon, Portugal. Two years had passed since the first ...
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Ella Sieradzki @sieravirus.bsky.social · 15/01/2026
Came to learn about polar microbiomes and found myself at the carnaval. Gotta love #PAM2026
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Ella Sieradzki @sieravirus.bsky.social · 13/01/2026
Soil is hard to work with, polar areas are hard to work in and viruses are hard to work on, but Gary didn’t let any of these deter him. The full paper is now out in Nature Comms!
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Lars Gamfeldt @gamfeldt.bsky.social · 10/11/2025
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)
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Ella Sieradzki @sieravirus.bsky.social · 21/10/2025
Let's talk -80 freezers: Recommendations? Dis-recommendations? What do you suggest prioritising and why? Bonus points if you have input on buying one in Europe. * photo of Muffin for cat tax
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Ella Sieradzki @sieravirus.bsky.social · 25/04/2025
Interested in RNA virus discovery? You can still register for the RdRp summit and attend remotely! We'll have some really nice talks and cutting edge discussions on best practices and new directions in the field. rdrp.io #phagesky #virosky #bioinformatics
rdrp.io
rdrp.io
The official website of the RdRp Summit.
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RdRp Summit @rdrpsummit.bsky.social · 03/04/2025
EXCITING NEWS🥳! @isme-microbes.bsky.social is now sponsoring 3 travels grants worth EUR 500 each to support early career researchers presenting at the #RdRpSummit2025. Abstract submissions & registrations are still open!✍️ More info at RdRp.io
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Ákos T Kovács @evolvedbiofilm.bsky.social · 25/03/2025
Calls for papers from FEMS Microbiology Ecology: Thematic Issue on Ecology of Soil Microorganisms Editors: @pbaldrian.bsky.social @jennihultman.bsky.social Petr Kohout Minna Männistö @tainapennanen.bsky.social academic.oup.com/femsec/pages... Submission deadline: 28 November 2025
academic.oup.com
Calls for papers from FEMS Microbiology Ecology
FEMS Microbiology Ecology, publishing leading research in the microbial ecology community, publishes a variety of thematic issues covering a diverse range of to
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Ella Sieradzki @sieravirus.bsky.social · 25/03/2025
RNA phages are phosphate limited, and possibly as implicated as their DNA counterparts in soil microbiome dynamics following soil wetup (first rain after the dry season). Out today in SBB! doi.org/10.1016/j.so... @soilmicrobes.bsky.social 1/n
doi.org
Redirecting
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Gareth (Gary) Trubl @gtrubl.bsky.social · 25/03/2025
Our paper is out and is open access! Phosphate amendment drives bloom of RNA viruses after soil wet-up. www.sciencedirect.com/science/arti... @sieravirus.bsky.social @jeffinerca.bsky.social @graemenicol.bsky.social @christinahazard.bsky.social
sciencedirect.com
Phosphate amendment drives bloom of RNA viruses after soil wet-up
Soil rewetting after a dry period results in a surge of activity and succession in both microbial and DNA virus communities. Less is known about the r…
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Ella Sieradzki @sieravirus.bsky.social · 12/02/2025
Marine nitrifies are incredibly important for the global nitrogen cycle. Tangentially, I met Sookie at #ISME2024 and we had lots of fun testing out South African food and cocktails. www.biorxiv.org/content/10.1...
biorxiv.org
Basin-scale dynamics and enrichment-enabled genomics of marine nitrifiers: seasonality, niches, interactions, and genomic uniqueness
Nitrification occurs widely from the deep sea to animal holobionts, but the eco-evolutionary forces shaping the niches and dynamics of the lineages of the chemoautotrophic bacteria and archaea respons...
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Ella Sieradzki @sieravirus.bsky.social · 12/02/2025
A beautiful initiative: crowdfunding to purchase and protect biodiversity hotspots worldwide via local NGOs. I'm so in! this-is-my-earth.org
this-is-my-earth.org
TiME · This is My Earth
We buy lands rich in biodiversity and hand them over to local communities and NGOs to protect. You can vote and decide which land to save.
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Ella Sieradzki @sieravirus.bsky.social · 30/01/2025
Going to #ViBioM2025 ? Interested in discovery of RNA viruses? Consider joining us 2 days early (May 11-12) in Lisbon for the 2025 RdRp summit @rdrpsummit.bsky.social ! Program and abstract submission will be available soon. We'll talk advances in methodology from isolation to bioinformatics.
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Ella Sieradzki @sieravirus.bsky.social · 21/01/2025
Using stable isotope probing in the lab and wondering how it compares to reality in the field? Look no further. Bottom line: microcosms are more prone to opportunists, but aren't a horrible approximation. Considering labor/price differences I'd say they're acceptable journals.asm.org/doi/pdf/10.1...
journals.asm.org
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Ella Sieradzki @sieravirus.bsky.social · 15/01/2025
Definitely saw this in mediterranean grassland via metatranscriptomics www.biorxiv.org/node/4329066...
biorxiv.org
Distribution of alternative routes for completing denitrification in microbial genomes and metagenomes of global biomes
Diverse microorganisms can execute one or more steps in denitrification, during which nitrate or nitrite is successively reduced into nitric oxide, nitrous oxide, and ultimately dinitrogen. Many of th...
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Pete Chuckran @pchuckran.bsky.social · 13/01/2025
Wetting dry soil rapidly stimulates microbial activity and has important consequences for biogeochemical cycling. In our paper out today, we show that part of that response can be explained by how bacterial genomes are written (i.e. codon usage, nucleotide freq., genome size) doi.org/10.1073/pnas...
doi.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Aude Bernheim @audeber.bsky.social · 13/01/2025
👋 Hi antiphage defense community, we are soon releasing an update of DefenseFinder. We are doing our best to include all the great discoveries from the community, but with so much going on we might miss things. Please answer wt preprints/papers with new systems or mail/git them to us. 🙏
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Ella Sieradzki @sieravirus.bsky.social · 04/01/2025
Fungi and isotopes alert! Great paper to start off the new year. www.nature.com/articles/s41...
nature.com
Soil fungi remain active and invest in storage compounds during drought independent of future climate conditions - Nature Communications
How climate change will impact microbial community growth is unclear. Here, the authors use a field experiment with varying global change factors, finding fungal growth more drought-resistant than mic...
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Ella Sieradzki @sieravirus.bsky.social · 03/01/2025
#PhD #position #phage please repost! Recruiting a PhD student!
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Ella Sieradzki @sieravirus.bsky.social · 03/01/2025
Cool! SAR11 phylogenomics and so many new (almost) complete genomes! Wish I could see the sup info for how 16S compares between them. Guess I'll have to be patient... www.biorxiv.org/content/10.1...
biorxiv.org
New isolate genomes and global marine metagenomes resolve ecologically relevant units of SAR11
The bacterial order Pelagibacterales (SAR11) is among the most abundant and widely distributed microbial lineages across the global surface ocean, where it forms an integral component of the marine ca...
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Alex Probst @alexjprobst.bsky.social · 19/12/2024
#PhD #position #alert 2 bioinfo PhD positions @ProbstLab @RESIST_CRC #1 on microbial & epigenetic stress response in rivers tinyurl.com/bdf8eu5a #2 on virus-host stress response in rivers tinyurl.com/43cjd6es (supervision Moraru) Please share!
tinyurl.com
Stellenausschreibung
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Ella Sieradzki @sieravirus.bsky.social · 24/12/2024
Really, ISME journal? On Dec 22nd you sent me an invitation to review and I haven't replied by Christmas Eve? Shocker.
media.tenor.com
a man with a beard is talking on his cell phone
ALT: a man with a beard is talking on his cell phone
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Chenxin Li, PhD @chenxinli2.bsky.social · 14/12/2024
In addition to applied statistics, I have another repository on #DataVisualization: "quick data vis" (github.com/cxli233/Quic...). It used to be under "Online_R_learning" but now it has its own repository on GitHub. I have used this content to teach 1st year grad students for 3 years.
Table of content for "quick data vis": basics of R coding, tidy data frames, ggplot, mean separation, proportional data, heatmaps, relationship data, plot assembly.
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Ella Sieradzki @sieravirus.bsky.social · 04/12/2024
SIP friends: does anyone have experience with Eppendorf (formerly Koki) himac ultracentrifuges? I'm considering buying the CP80NX but only have personal experience with Beckman and Sorval. *Biscuit and Muffin pic provided for increased traffic
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Ella Sieradzki @sieravirus.bsky.social · 03/12/2024
Interested in discovering new viruses from soil that may be affecting global carbon sequestration? Apply for a PhD position with me at Aarhus University in Flakkebjerg! Our group is very international, supportive and friendly. Applications due by February 1st 2025. phd.tech.au.dk/for-applican...
phd.tech.au.dk
Discovery and physiology of soil viruses
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Ella Sieradzki @sieravirus.bsky.social · 25/11/2024
It's definitely about time I visit Helsinki. Let's hang out!
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Ella Sieradzki @sieravirus.bsky.social · 16/11/2024
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Ella Sieradzki @sieravirus.bsky.social · 15/10/2024
Cool to see new tools focusing on harder to identify viruses. Looking forward to giving BEREN a shot! Will Luthien be next? BEREN: A bioinformatic tool for recovering Giant viruses, Polinton-like Viruses, and Virophages in metagenomic data www.biorxiv.org/content/10.1...
biorxiv.org
BEREN: A bioinformatic tool for recovering Giant viruses, Polinton-like Viruses, and Virophages in metagenomic data
Viruses in the kingdom Bamfordvirae , specifically giant viruses (NCLDVs) in the phylum Nucleocytoviricota and smaller members in the Preplasmiviricota phylum, are widespread and important groups of v...
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Max Planck Institute for Marine Microbiology @mpimarinemicrobio.bsky.social · 17/05/2024
ZOMBIE CELLS!!! 😱🧟🦠 @janbruewer.bsky.social and colleagues discover how #viruses keep #SAR11 in check and even turn them into zombies! Out now @natureportfolio.bsky.social Nat Comms mpi-bremen.de/en/Zombie-ce... www.nature.com/articles/s41...
mpi-bremen.de
Zombie cells in the sea: Viruses keep the most common marine bacteria in check
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Simon Roux @simrouxvirus.bsky.social · 14/06/2024
Great phage AMG session. At #ASMicrobe thanks to all the amazing speakers ! And if you want more of this excellent (unbiased opinion) phage/virus content, registrations are open for VEGA24, Nov 12-13 in Berkeley ! jgi.doe.gov/events/vega/
jgi.doe.gov
VEGA Symposium - DOE Joint Genome Institute
Videos from the October 6-7, 2022 event are available now!
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Ella Sieradzki @sieravirus.bsky.social · 15/06/2024
Uploading MAGs to NCBI
media.tenor.com
Cat Sisyphus GIF
ALT: Cat Sisyphus GIF
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Ella Sieradzki @sieravirus.bsky.social · 11/06/2024
Wow www.nature.com/articles/s41...
nature.com
Rhizobia–diatom symbiosis fixes missing nitrogen in the ocean - Nature
Nature - Rhizobia–diatom symbiosis fixes missing nitrogen in the ocean
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Ella Sieradzki @sieravirus.bsky.social · 07/06/2024
Good new alert: I've accepted a tenure track position in the agroecology department at @aarhusuni.bsky.social ! As of September you may find me in Denmark enjoying the mild weather, green scenery and English speaking people.
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Denise Akob @deniseakob.bsky.social · 25/03/2024
#JobAlert #microbiology #microbiologyjobs I am hiring a scientist to work with me at the US Geological Survey in Reston, Virginia. Interested? Apply at www.usajobs.gov/job/783135100 starting April 1st (note that only 50 applications will be accepted). Applicants must be U.S. Citizens.
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Ella Sieradzki @sieravirus.bsky.social · 18/03/2024
Ooh! A phage phestival! Wish I could be there...Sounds like phun
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Jay T Lennon @jaytlennon.bsky.social · 06/03/2024
Please share: collaborative postdoc opportunity in microbial ecology and evolution at Indiana University Bloomington NSF Biology Integration Institute (BII) on "Genomics and Eco-evolution of Multi-Scale Symbioses (GEMS)”   @GEMS_BII: tinyurl.com/4vyf6erd indiana.peopleadmin.com/postings/23270
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Ella Sieradzki @sieravirus.bsky.social · 01/03/2024
Love me some 13C tracing of C all the way from the atmosphere into sequestration in mineral-associated organic matter in soil. Really excellent work! www.sciencedirect.com/science/arti...
sciencedirect.com
Decoding the rhizodeposit-derived carbon’s journey into soil organic matter
Net rhizodeposition corresponds to the portion of living root carbon (C) that remains in the soil after microbial processing and partial decomposition…
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Ella Sieradzki @sieravirus.bsky.social · 28/02/2024
Salivating over all the delicious science you could do when you have a giant phage in culture, but also happy for my friend Markus academic.oup.com/ismej/advanc...
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Emily Schmeltzer, PhD @eschmeltzer.bsky.social · 13/02/2024
I’m gonna put this out here again! I like reviewing! 👋🏼
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Ella Sieradzki @sieravirus.bsky.social · 13/02/2024
I really want to apply because the lineup is amazing and I'm sure I have tons to learn from these people, but I should prioritise students, so here goes: If you're a Master's or PhD student with background in linux and R/python and an interest in virus-host dynamics - you should apply.
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Ella Sieradzki @sieravirus.bsky.social · 07/02/2024
Nothing like trying to maintain composure and professionalism during a job interview while your cat yells for uppies and sticks her not-rose-smelling business end in your face. Thanks, Muffin.
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bioRxiv Microbiology @biorxiv-microbiol.bsky.social · 07/02/2024
A 20-year time-series of a freshwater lake reveals seasonal dynamics and environmental drivers of viral diversity, ecology, and evolution www.biorxiv.org/content/10.1101/202…
biorxiv.org
A 20-year time-series of a freshwater lake reveals seasonal dynamics and environmental drivers of viral diversity, ecology, and evolution https://www.biorxiv.org/content/10.1101/2024.02.06.579183v1
Long-term ecological studies are powerful tools to investigate microbiomes and ecosystem change but
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Ella Sieradzki @sieravirus.bsky.social · 23/01/2024
Gonna give this a try soon and report how it went. Curious to see the differences from published data.
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Ella Sieradzki @sieravirus.bsky.social · 17/01/2024
Sometimes a paper's impact is in the amount of work that can be built on top of it. Prime example: the aggregation capacity of soil, even if disturbed, affects the amount of C it sequesters. Include soil types that represent the range of aggregation capacity! www.sciencedirect.com/science/arti...
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Guillaume Lobet @guillaumelobet.bsky.social · 13/01/2024
Looking for FREE (!) and reusable scientific figures / illustrations / pictures of #plants ? ➡️ check out the #plantillustrations collections on #figshare. Made by scientist, for scientists 🧪 🌾 figshare.com/authors/Plan...
screenshot of the plant illustration figshare repository, showing thumbnails of flower schematics
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