Two PhD positions with me at Aarhus University in Denmark are now open for applicants: phd.nat.au.dk/for-applican... Deadline November 1. Thanks @carlsbergfondet.dk!
Anaerobic growth of aerobic methane-oxidising bacteria
phd.nat.au.dk
Anne Daebeler
@anne-daebeler.bsky.social
Microbes, their ecology, physiology, and genomes - especially nitrifiers and CH4 cyclers. Group leader at BC CAS, Czechia. Co-founder of PCI Microbiology. 🦠🐈🌱🏳️🌈 https://microbescancycle.wordpress.com
I'm looking for an enthusiastic student to join my team as a PhD candidate on archaeal genome evolution 🦠💻 Work in beautiful Utrecht, at @binfutrecht.bsky.social, an international group full of caring, amazing scientists, and with frequent cake breaks! www.uu.nl/en/organisat... Please share! 🙏
uu.nl
Happy to share our latest article in Environmental Science & Technology! We show that the acidophilic sulfate-reducing bacterium Acididesulfobacillus acetoxydans remains metabolically active under AMD-like acidity through cation transport and membrane remodelling! doi.org/10.1021/acs....
Proton Stress Adaptation in Acidophilic Sulfate-Reducing Bacteria: Insights from Acididesulfobacillus Acetoxydans for Acid Mine Drainage Bioremediation
Acid mine drainage (AMD) waters are a global environmental threat due to their extremely low pH (<3) and high metal loads. Acidophilic sulfate-reducing bacteria (aSRB) can mitigate AMD by reducing sulfate to sulfide, a proton-consuming process that also precipitates metals as metal sulfides. Although sulfate reduction has been observed in AMD waters, most characterized aSRB are only moderately acidophilic. Here, we examined the pH tolerance and proton stress adaptation of the complete organic acid-oxidizing aSRB Acididesulfobacillus acetoxydans. Continuous chemostat cultivations were operated across a pH gradient, reaching steady states from pH 5.0 (optimum) to pH 2.9. In subsequent batch incubations, biomass from a pH 2.9 chemostat remained metabolically active at pH 2.5. Transcriptomic profiles remained remarkably stable across conditions, except for the upregulation of the K+-transporting ATPase (kdpABC) at lower pH, suggesting an increased reliance on the chemiosmotic gradient to impede proton influx. Lipid analysis revealed increased core lipid saturation, midchain methylation, and a shift in priming precursors from leucine to valine at low pH, indicating reduced membrane permeability and more energy-efficient biosynthetic pathways. Together, these adaptations likely reduce proton entry, explaining how aSRB adapt to AMD-like acidity and unlock the pH bottleneck for AMD bioremediation and metal recovery.
doi.org
Reinier Egas@raegas.bsky.social · 10mo agoNew preprint out: Although sulfate reduction at pH < 3 is reported in acid mine/rock drainage environments, isolated aSRB have never matched this limit. Using axenic planktonic chemostats plus DNA/RNA and lipid analyses, we demonstrate aSRB activity and underlying physiology at AMD-like pH.
🔬 New funding opportunity in aquatic microbiology The Symbiosis in Aquatic Systems Initiative (Gordon and Betty Moore Foundation) is inviting proposals for high-risk, high-impact research on microbial symbiosis in marine and freshwater environments. Find out more: buff.ly/vQowRoS
Do microbes breathe peat? 🦠⚡🌿 New preprint: we sampled Swedish bogs to 7 m and found dominant, uncultured Acidobacteriota & Verrucomicrobiota encode conserved extracellular electron transfer (EET) machinery that was transcriptionally active all the way down.
Yes, we all can do better: as authors and reviewers!
A. Murat Eren (Meren)@merenbey.bsky.social · 6mo ago"A data-conscious checklist for the reviewers of 'omics studies who champion open science", a Comment Iva Veseli and I wrote is now online at metaRxiv: doi.org/10.31222/osf... Please read it and consider sharing it with your friends, colleagues, trainees, or editors of your favorite journals.
Deadline is April 20th! Let’s get those viruses
Ella Sieradzki@sieravirus.bsky.social · 7mo agoI'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...
📣We have 5 PhD positions in hadal biogeochemistry and microbial ecology at the Danish Center for Hadal Research: lnkd.in/eJ6rp_Rk. 📣 Deadline: 4 May 2026 Please share widely! fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/Candid...
PhD positions in hadal biogeochemistry & microbial ecology
Application deadline: 4 May 2026 at 23:59 hours local Danish time
fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com
after much deliberation and giving AI the benefit of the doubt, Wikipedia editors have had enough of AI slop. New policy bans LLM generated content, periodt www.404media.co/wikipedia-ba...
Wikipedia Bans AI-Generated Content
“In recent months, more and more administrative reports centered on LLM-related issues, and editors were being overwhelmed.”
404media.co
Microbiology Postdocs from all over Europe and the globe, do not miss this next splendid opportunity for career building and networking! 🦠🧑🔬🧑🎓💯🇵🇹
FEMS@femsmicro.org · 6mo ago🌟 Applications are now open! 🌟 Ready to level up your research career this summer? Join a select group of early‑career scientists for an immersive 6‑day mentor‑led Summer School in Porto, Portugal, from 26–31 August 2026. 👉 Start your application here: buff.ly/Ppu8RY3 and apply by 15 April.
We now provide environmental metadata for the GlobDB genomes! 🖥️🧬🦠 More info here: globdb.org/news 🧵
How do you make methane from phosphite? Through interspecies H2 transfer! Our paper on lithosyntrophy is finally published - read about how we resolved the metabolic interactions in this phosphite oxidizing, methanogenic enrichment culture! #phosphorus #methanogenesis www.pnas.org/doi/10.1073/...
Lithosyntrophy: Obligate syntrophy in a phosphite-oxidizing, methanogenic culture | PNAS
The anaerobic conversion of organic matter to methane and carbon dioxide typically relies on obligate syntrophic interactions between bacteria and ...
pnas.org
Methane is the second most abundant greenhouse gas with a high heat-trapping capacity but a short lifespan in the atmosphere. So-called “microbial methane munchers” can lower methane emissions from diverse ecosystems, as explored on the new #FEMSmicroBlog. #FascinatingMicrobes
#FEMSmicroBlog: Exploring the metabolic activities of microbial methane munchers
#FEMSmicroBlog: So-called “microbial methane munchers” have the unique abilities to lower methane emissions from various ecosystems.
buff.ly
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...
Postdoc in Soil viral ecology - Vacancy at Aarhus University
Vacancy at Department of Agroecology - Plant Pathology and Microbiology, Aarhus University
international.au.dk
Interested in microbial proteins and their diversity? 🖥️🧬🦠 We have recently released the Amino Acid Sequence Toolkit (AASTK). AASTK is designed to work with the GlobDB to create and work with datasets of protein sequences. AASTK currently consists of 4 tools: - CASM - PASR - CUGO - Meta 1/
Depth-resolved carbon dioxide and methane concentrations in 522 lakes, ponds, and reservoirs worldwide www.nature.com/articles/s41... #jcampubs
Depth-resolved carbon dioxide and methane concentrations in 522 lakes, ponds, and reservoirs worldwide - Scientific Data
Scientific Data - Depth-resolved carbon dioxide and methane concentrations in 522 lakes, ponds, and reservoirs worldwide
nature.com
Introducing.... The Soil Ecology Seminar Series 2026! Join us on Wednesday the 25th of February at 1 pm GMT for the first installment. We will delve into microbial ecology with exciting talks from Dr Ashish Malik and Josh Thurston: Register your interest here: urldefense.com/v3/__https:/...
Welcome! You are invited to join a meeting: The Soil Ecology Seminar Series - Microbial ecology. After registering, you will receive a confirmation email about joining the meeting.
Welcome! You are invited to join a meeting: The Soil Ecology Seminar Series - Microbial ecology. After registering, you will receive a confirmation email about joining the meeting.
urldefense.com
♨️ Final version now published! 🥳 Explore our provocative new proposal on how to interpret the morphologies of archaean microfossils! 🌋🦠 Thanks to former colleague #DheerajKanaparthi for pulling this all the way through and to @elife.bsky.social for the like! 👍
On the nature of the earliest known lifeforms
Microfossils reported from Archaean BIFs most likely were liposome-like protocells, which had evolved intracellular mechanisms for energy conservation but not for regulating cell morphology and replic...
doi.org
In addition to the 2 postdoc jobs posted yesterday, we’re recruiting 2 PhD students (environmental microbiology/ molecular ecology) to join us from April. The projects will map microbial populations across niches in bioelectrochemical systems relevant to biomethanation & link them to performance.
Two fully funded PhD candidate positions in Electromicrobiology (3 years)
Application deadline: 4 March 2026 at 23:59 hours local Danish time
fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com
I’m looking for two postdoctoral scientists in experimental evolution to join my team from April 2026 (or soon after). Please share! fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/Candid...
Two postdoctoral positions (3-year) in Experimental Evolution of Methanogenic Microbiomes in Bioelectrochemical Systems
Application deadline: 4 March 2026 at 23:59 hours local Danish time
fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com
A national baseline for methane sink habitats and methanotroph diversity https://www.biorxiv.org/content/10.64898/2026.02.02.703227v1
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...
biorxiv.org
Finally a satisfying answer to why some microbes just 'hate' organics. Amazing work!
BejaLabTechnion@bejalab.bsky.social · 8mo agoCell cycle dysregulation of globally important SAR11 bacteria resulting from environmental perturbation www.nature.com/articles/s41...
📢 20 postdoctoral positions (full-time, 4 years) for outstanding female scientists 👩🔬 🔬 @univie.ac.at The E-STEEM programme call opens January 7th, 2026 and closes March 3rd, 2026. careers.univie.ac.at/en/postdoc/e... I participate as a host...
careers.univie.ac.at
🚨 New paper out: Ecogenomics of Methylobacter 🦠 - three different MMOs to oxidize CH4 in single species - machinery for nitrogen, sulfur, iron, and hydrogen metabolisms - adaptations to low O2 conditions ... led by @wutkowska.bsky.social tinyurl.com/pmntwuk6 #MicrobeSky #pangenome
Uncovering hidden phylo: and ecogenomic diversity of the widespread methanotrophic genus Methylobacter
Abstract. The globally distributed genus Methylobacter plays a crucial role in mitigating methane emissions from diverse ecosystems, including freshwater a
academic.oup.com
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
Scikit-bio: a fundamental Python library for biological omic data analysis - Nature Methods
Nature Methods - Scikit-bio: a fundamental Python library for biological omic data analysis
nature.com
😍 It was wonderfully rewarding yesterday to see my first PhDs' student impressive performance defending his work on methanotrophs of 4 years. Congratulations Justus! Thanks to the two opponents @matehg.bsky.social and Antti Rissanen and to all our collaborators!!!
From January 1st 2026, the CNRS will cut access to one of the largest commercial bibliometric databases, Clarivate Analytics' Web of Science, along with the Core Collection and Journal Citation Reports.
The CNRS is breaking free from the Web of Science
From January 1st 2026, the CNRS will cut access to one of the largest commercial bibliometric databases, Clarivate Analytics'
cnrs.fr
📢 Extra, extra: our collaborative study on trace gas oxidizers in a warmer soil is out as a preprint www.biorxiv.org/content/10.1... Big thanks to @thanh0109.bsky.social @bobpmleung.bsky.social @wutkowska.bsky.social @andreasrichter.bsky.social @mathildebio.bsky.social @greening.bsky.social ...
Soil trace gas oxidizers divergently respond to short- and long-term warming
The upland soil microbiome is dominated by aerobic bacteria that oxidize atmospheric trace gases, including CO, H2, and CH4. As a result, soils are the largest biological sink for these climate-active...
biorxiv.org