Kathi Kitzinger

🚨 Postdoctoral Opportunity for Female Scientists🚨

The University of Vienna is awarding at least 20 fully funded 4 year postdoctoral positions to outstanding female scientists

Interested? Get in touch via direct message
careers.univie.ac.at/en/postdoc/e...

#MicroSky 🧪

#PostDoc @univie.ac.at

Check out this awesome resource for all your future microbial #genome analyses:
#GlobDB is the to date most complete genome database available!

Developed by @daanspeth.bsky.social and colleagues 🧪🦠🧬🖥️

Spatiotemporal and temperature-dependent disconnect between ammonia oxidation and dark DIC fixation in deep oligotrophic Lake Constance Abstract. Deep oligotrophic lakes hold over 80% of global lake water. In their hypolimnion, ammonia oxidation (the first step of nitrification) and non-pho

Interested in #nitrification? Check-out this new paper driven by the #MichaelPester group focussing on nitrification-driven chemolithoautotrophy in oligotrophic lake hypolimnia. Freshwater AOA contribute only a minor part to dark DIC fixation in these systems.

academic.oup.com/ismecommun/a...

Fresh from our group, a new role for oxygen production in ammonia-oxidizing archaea:

Oxygen production as an electron overflow pathway in ammonia-oxidizing archaea

Congrats to Thomas Pribasnig for this great work!

Check it out here:
www.biorxiv.org/content/10.6...

#Urea: The Hidden Fuel for Ocean Microbes 🦠🌊

Study in @natcomms.nature.com shows how #ammonia-oxidizing #archaea thrive in nutrient-poor waters: Urea is a major energy source for #AOA in the open #ocean, while coastal AOA prefer #ammonium.

www.mpi-bremen.de/en/Urea-The-...

Thanks for a great collaboration, everyone & bsky friends @daanspeth.bsky.social @dome-vienna.bsky.social @sinaschorn.bsky.social

Urea use drives niche separation between dominant marine ammonia oxidizing archaea - Nature Communications Two groups of ammonia-oxidizing archaea drive marine nitrification. Stuehrenberg et al. reveal that their distribution reflects substrate use, with one relying on urea and the other on ammonia to main...

🧪🦠🌊
Curious on #niche differentiation of marine #AOA #Nitrosopumilus and #Nitrosopelagicus?
#Urea is (part of) the answer!

Very happy this fun study led by
@mpimarinemicrobio.bsky.social is out:
shorturl.at/wajjh

Big shout out to Joerdis and Hannah for pushing this over the finish line!

New @fwf-at.bsky.social CoE Microplanet study introduces GlobDB globdb.org, a comprehensive database integrating 14 genomic catalogues providing consistent taxonomy for microbial species.
academic.oup.com/bioinformati...

My fantastic department at CU Boulder is hiring a tenure-track Assistant Professor! This is a broad search spanning nearly all areas of biology. Applications are due Nov 13, 2025. Feel free to reach out to me with questions, and please share widely.
jobs.colorado.edu/jobs/JobDeta...

Postdoc on microbial oxygen production in marine oxygen minimum zones Application deadline: 17 November 2025 at 23:59 hours local Danish time

🚨Exciting 🧪👩‍🎓🦠 job alert 🚨
Postdoc position on dark microbial O2 production in marine oxygen minimum zones with Bo Thamdrup and @beatekraft.bsky.social at @sdu.dk

Love fieldwork, stable isotopes, the sea and a fantastic team? Then apply -> fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/Candid...

Still 10 days left to apply! 🦠🧪👩‍🎓🔬
Come work with my team in beautiful Vienna!

Still 10 days left to apply! 🦠🧪👩‍🎓🔬
Come work with my team in beautiful Vienna!

New preprint from our team! Experimental evidence that ammonia-oxidizing archaea in sponges use branched chain amino acids as substrates - possibly also key for host interaction

#Nitrification
#MicroSky 🧪 #ArchaeaSky
@bglasl.bsky.social @kathikitzinger.bsky.social

www.biorxiv.org/content/10.1...

Who fixes carbon in the dark ocean? A new study led by Barbara Bayer (CeMESS, University of Vienna) discovered that ammonia-oxidizing microorganisms contribute much less to carbon fixation in the ocean than previously assumed. The study...

Who fixes carbon in the dark ocean? A new study in @nature.com, led by @barbarabayer.bsky.social @univie.ac.at shows that ammonia‐oxidizing microbes contribute much less to dark carbon fixation than previously thought – leaving room for unknown players.
Read more: 🔗 dome.univie.ac.at/news-events/...

Kinetic Plasticity of Nitrite-Oxidizing Bacteria Containing Cytoplasmic Nitrite Oxidoreductase Nitrite oxidation, the second step of nitrification, is essential to the global nitrogen cycle. Nitrite-oxidizing bacteria (NOB) are classified into two groups based on the cellular localization of th...

Surprising finding:

#Nitrobacter can dynamically modulate nitrite affinity in response to both nitrite concentration and pH, conferring a flexible adaptation strategy

Great collaboration with the Sung-Keun Rhee lab

#MicroSky 🧪 #nitrification #kinetics

www.biorxiv.org/content/10.1...

🚨 2 funded #PhD positions (ERC Adv Grant) in the Moissl-Eichinger Lab, Graz! Study Methanobrevibacter as a keystone in the gut microbiome.
💡 Omics, modeling, synthetic consortia
📅 Deadline: Sept 10, 2025
🌍 Int’l applicants welcome!
Application link below.
#microbiomesky #archaeasky #microsky

🚨4yr Technical Assistant Position on #Microbial Activities in #Marine #N-Cycling🦠🧪👩‍🎓🔬

Join me @univie.ac.at @dome-vienna.bsky.social
Part of our ERC Synergy #RECLESS looking at microbes in marine oxygen minimum zones

Apply by Oct 15, start March 2026!

-> ucloud.univie.ac.at/index.php/s/...

🚨3-yr Postdoc Position on #SingleCell Activities in #Marine #N-Cycling🦠🧪👩‍🎓🔬

Join me @univie.ac.at @dome-vienna.bsky.social
Part of our ERC Synergy #RECLESS looking at microbes in marine oxygen minimum zones

Apply by Oct 15, start March 2026!

-> ucloud.univie.ac.at/index.php/s/...

Great podcast recording with Nicole Geerlings for #MattersMicrobial about weird and wonderful cable bacteria! I truly enjoyed the session. Releasing next week. @nmjgeerlings.bsky.social

We are hiring: Full Professor of Soil Ecosystems and Global Change Soil ecosystems form the foundation of planetary health and play a critical role in climate feedback mechanisms. However, they are also vulnerable to the impacts of global change.

CeMESS is hiring!

Join us at the Division of Terrestrial Ecosystem Research (@ter-cemess.bsky.social) as Full Professor of SOIL ECOSYSTEMS AND GLOBAL CHANGE. Collaborate across a leading institution in microbiome science and environmental research.

🔗 Learn more: cemess.univie.ac.at/news/detail-...

Data Steward The University of Vienna plans to expand the existing Research Data Management services by offering discipline-specific support through a new Data Stewardship program tailored to meet the discipline-s...

We're hiring! Join CeMESS @univie.ac.at as a DATA STEWARD and help shape the future of research data management. Collaborate with top researchers and drive innovation in Open Science.

Apply now! 🔗 cemess.univie.ac.at/career-educa...

We are hiring: Full Professor of Environmental Biogeochemistry of Metals Human activities are driving rapid environmental change on a global scale, with pollutants playing a critical role in pushing planetary systems beyond safe limits. These changes have profound conseque...

CeMESS is hiring!

Join us at the Division of Environmental Geosciences (@edge-vienna.bsky.social) as Full Professor of ENVIRONMENTAL BIOGEOCHEMISTRY OF METALS. Collaborate across a leading institution in microbiome science and environmental research.

🔗 Learn more and apply: tinyurl.com/47bev45k

Open postdoc position combining all the good things: #Ocean, #Nitrogen-cycling, #OxygenMinimumZones, #Biogeochemistry🧪🌊🔬

Check out this postdoc opening with my great colleague and friend #LauraBristow at #Uni #Gothenburg - part of our ERC Synergy #RECLESS: web103.reachmee.com/ext/I005/103...

ERC Advanced Grant awarded to Dagmar Woebken CeMESS Assoc Prof. Dagmar Woebken has secured a highly competitive ERC Advanced Grant for her project 'Windows of microbial activity in deserts afforded by non-rain water (WinMicAct)'.

Big congratulations to Dagmar Woebken (@dagmarwoebken.bsky.social) who has been awarded an #ERC Advanced Grant for her project "WinMicAct" to explore how desert microbes thrive on non-rainwater.

🔗 More info: cemess.univie.ac.at/news/detail-...

FWF-ASTRA-Preise: 22 Millionen Euro für aufstrebende Spitzenforscher:innen Hochtalentierte Forschende im internationalen Wettbewerb halten und gewinnen: Die neuen FWF-ASTRA-Preise mit einem Fördervolumen von je rund einer Million Euro ermöglichen fortgeschrittenen Postdocs d...

#ASTRA-Preise zum ersten Mal vergeben: Der FWF vergibt 22 Millionen Euro für aufstrebende Spitzenforscher:innen. 🌟
Die neuen Preise ermöglichen 18 fortgeschrittenen Postdocs den Sprung an die Spitze ihres Forschungsfelds. Wir gratulieren herzlich! 👏

www.fwf.ac.at/aktuelles/de...

A short preprint describing the GlobDB is now on arXiv: arxiv.org/abs/2506.11896

If you find the resource useful, please also check globdb.org for info on how to cite the underlying resources and tools.

Slowly it's sinking in 😍
Very excited about my new role as #Assistant #Professor @univie.ac.at @cemess.bsky.social! 🦠👩‍🎓🔬

It's great to be part of this fantastic team of friends and colleagues!

🧪 #Microsky

Exciting news #1! Our CoE Deputy Director @chmoei.bsky.social @medunigraz.at received an ERC Advanced Grant to study Methanobrevibacter – a tiny archaeon with a huge impact on gut health and methane emissions. #Archaeasky #Microsky #ERCAdG @erc.europa.eu @fwf-at.bsky.social

Exciting news #2! CoE Key Researcher Dagmar Woebken (@cemess.bsky.social, @univie.ac.at) receives an ERC Advanced Grant to explore how desert microbes thrive on non-rainwater (dew, water vapor).
#Microsky #ERCAdG @erc.europa.eu @fwf-at.bsky.social

It's not too late to present your #science at #European #N-Cycle #Conference: Abstract submission extended until July 1st! 😍🦠👩‍🎓