🦠 Studying the biology and symbiotic relationships of holobionts living in extreme environments, such as the deep sea, is challenging. However, uncovering the strategies of these organisms to overcome harsh environmental constraints offers crucial insights into ecology and evolution of marine life.

New preprint! We explore how gutless marine worms and their bacterial symbionts use organosulfur compounds like DMSP and DMS - key molecules in marine sulfur cycling. Our results show that these compounds support carbon and energy metabolism in the Olavius algarvensis symbiosis.

New preprint: 🚀🧬 Starship in the genome of the lichen fungus Xanthoria. Discovery of giant transposons Starships challenged what we thought we knew about fungal genomes. But what about Starships in #lichen fungi? Let us present Tangerine! 🖥️ 🧪 🦠 🧫 #SymbioSky doi.org/10.1101/2025...

Fascinating hologenome study of a deep-sea black coral and their microbial symbionts 🪸

Our November issue examines Global Steps Forward as we mark 5 years of COVID-19. The issue includes discussion pieces from authors across the globe, examining insights gained on SARS-CoV-2, lessons learned, and next steps forward. www.cell.com/cell-host-mi...

A couple of days left to submit your abstract for the upcoming EMBO/EMBL Symposium on the Molecular Basis of Symbiosis ! Great line up of speakers :) #ProtistsOnSky #SymbioSky

Here, we show that deep below, corals and feather stars don’t just share space – they share microbes. Endozoicomonadaceae + Nitrosopumilaceae inhabit both hosts in a “promiscuous” symbiosis that may fuel nitrogen cycling in the deep sea. doi.org/10.1186/s401... 🌊🪸🧪 #Bioinformatics 🧬💻 #SymbioSky

Happy weekend, symbiosis friends #SymbioSky #MicroSky

I'm fairly sure that most supervisors would be happy to spend more time with their mentees. However, the more you climb the proverbial academic ladder, the more people, teaching, and everything else seem to start pulling at you for your time. It's a system problem, not always a supervisor problem.

This got to me. Haunting and beautifully written. news.mongabay.com/2025/10/in-m...

Bleaching: more than just a coral problem.

🌟 New book chapter alert! 🪸 Coral reefs are threatened by climate change, especially by mass ‘bleaching’ events. Bleaching is caused by the loss of photosymbionts under stress, resulting in a white – ‘bleached’ - phenotype. link.springer.com/chapter/10.1... #SymbioSky #MicroSky

My first dive into Raman microscopy! 🔬 Our latest heat stress experiments on Aiptasia raised more questions than answers — until a few days of Raman spectroscopy with Dr. Peter Mojzeš at @charlesuni.cuni.cz helped connect the dots. Grateful for the collaboration and excited about what’s ahead!

I just returned from my holiday in Finland. While we were looking for bears, wolves and co, one of my personal favorites were these green-alga bearing freshwater sponges. Photosymbiosis is everywhere if you look close enough. Maybe it‘s time for some freshwater work at @hifmb.de?

🧬 Postdoc — cellular dynamics of photosymbiosis⁣ Deadline: Oct 29⁣ Apply 👉 jobs.awi.de/Vacancies/20... #Postdoc #CellBiology #SymbiosisResearch

🔬 PhD — metabolic interactions in photosymbiosis⁣ Deadline: Nov 5⁣ Apply 👉 jobs.awi.de/Vacancies/20... #PhDposition #Metabolomics #MarineBiology

PhD — cellular signaling in photosymbiosis Deadline: Nov 5 Apply 👉 recruitingapp-5442.de.umantis.com/Vacancies/20... #PhDposition #CellSignaling #Symbiosis

🪸🧪 We’re hiring! Join our ERC-funded group at the @hifmb.de in Oldenburg, Germany to explore the cellular origins of photosymbiosis:⁣ ⁣ 𝟏 𝐏𝐨𝐬𝐭𝐝𝐨𝐜 + 𝟐 𝐏𝐡𝐃𝐬 𝐩𝐨𝐬𝐢𝐭𝐢𝐨𝐧𝐬.⁣ Deadlines: Oct 29 & Nov 5. Links below. ⁣ Questions: [email protected]⁣ #Photosymbiosis #HIFMB #ERC #AcademicJobs

🪸 Call for abstracts! We invite you to submit your abstracts to our session ‘Understanding the roles of Endozoicomonadaceae in coral reef holobionts: Mutualists, parasites, and everything in between?’ at the next International Coral Reef Symposium from July 19–24, 2026 in Auckland.

I will be hiring a PhD student and a postdoc for my ANR-funded project CECIL soon, starting in January 2026. If you have experience in (marine) microbiology and microbial OMICS, and are keen to understand how sea anemone microbiomes work, please reach out! 🧫 🧬 (p.s. we got tapas!) 👇

How microbial therapies are reshaping coral reef restoration? 'Fungi and Fungi-Like Entities' chapter of 'Coral Reef Microbiome' explores the science behind microbial-based interventions to combat coral bleaching and ecosystem degradation. bit.ly/472kO39 @cpogoreutz.bsky.social

🌊 The mid-latitude marine heatwaves now pushing 4–5°C above normal in many regions. This isn’t seasonal warming; it’s a climate alarm bell. Ecosystems are under stress.

🚨 Lecturer in Animal Ecology position @jcuofficial.bsky.social. Candidates with expertise in terrestrial animal ecology are encouraged. 📍 Townsville, AU Closes: 8th Aug 2025 🔗 careers.jcu.edu.au/jobs/lecture...

🔬Calling all microbiologists. 🔬 Ever feel like your paper is too small for some journals, but too solid to sit on? #FEMSMicrobes welcomes well-executed microbiology manuscripts, and they put special attention on promoting ECR authors, eg the webinar below. 👇 @femsjournals.bsky.social @femsmicro.org

"The goal of academic training is not to solve problems as efficiently and quickly as possible, but to develop skills for identifying and dealing with novel problems, which have never been solved before" <- this open letter should be read by everyone in #HigherEd openletter.earth/open-letter-...

After 5 amazing years @pilhoferlab.bsky.social I'm starting my lab @embl.org Grenoble this November embl.org/wollweber We'll image Asgard archaea and many other strange microbes ( #archaeasky, #protistsonsky..) to understand eukaryogenesis First job ad: #teamtomo scientist!🔬❄️ tinyurl.com/2rdu2ze6

I am thrilled to announce that two exciting proposals were selected to be funded by the 2025 call for projects by the @agencerecherche.bsky.social – one major collaborative project (PRC) on which I will be co-investigator, and my Young Researcher (JCJC) project CECIL, which I will be leading.

New tenure track assistant professor position in molecular microbiology in our department @dmf-unil.bsky.social @unil.bsky.social! We are casting a wide net for an experimental molecular microbiologist. Apply here: wwwfbm.unil.ch/releve/appli...

Looking forward to an exciting CRC 1182 Metaorganism symposium on host-microbe crosstalk. @crc1182.bsky.social @cpogoreutz.bsky.social @spencernyholm.bsky.social @manuelliebeke.bsky.social oliviaroth.bsky.social @tylerjcarrier.bsky.social @geomarkiel.bsky.social @daganlab.bsky.social

One week left to apply to this postdoc opportunity I'm offering in native oyster restoration in Ireland. Get your applications in before the 9th May 12 pm deadline! Any questions contact me. Details in the application documents, link below.

Us Junior Prof Chairs have recently formed a national network across France - curious? The network is publishing mini profiles for every CPJ. Check them out - below is mine! 💫 Thank you @cpjfrance.bsky.social and @mayurisadoine.bsky.social for this wonderful initiative!

#CPJ Portrait: Cécile ARMAND✨ Want to know more about Cécile? Check out here 👇 wp.me/PgdKM0-3h 🔍 @carmand86.bsky.social

#CPJ Portrait:Clémentine GRITTI ✨ Want to know more about Clémentine? Check out here 👇 wp.me/PgdKM0-41 🔍

🚨 Calling all early-career scientists! The #HFSP Fellowships call is now OPEN. 🚀 High-risk, high-reward #LifeScience projects 🌍 International mobility & #interdisciplinarity 💡 Deadline to initiate LOI: 7 May 2025 🔗 Apply now: zurl.co/Rob2W#HFSP🧪 #sts #Fellowships

🌊 Calling all MSc & PhD students! Apply now for our #Summerschool on #Host-Microbe Symbioses in Aquatic Environments Dive into 5 days of field, lab & computational activities in the stunning Venetian Lagoon + amazing invited speakers! www.unipd.it/en/animals-c... 🗓️ Deadline: May 20

Hurry up, early birds! 🐦 Abstract submissions and registrations to join us at the #TMHMS25 Symposium are now open!

We are hiring! - Please share We have an open postdoc or PhD position in aquatic ecology with a research focus on fish ecology and the application of molecular tools in ecological research. Join us at @tudresden.bsky.social Institute for Hydrobiology www.verw.tu-dresden.de/StellAus/ste...

If you are interested in a postdoc opportunity in Europe, I'd suggest you to consider the EU Marie Curie Postdoctoral Fellowship: ec.europa.eu/info/funding... If you are into marine microbial ecology and evolution, I'd love to support your application (see more at merenlab.org). E-MAIL ME NOW! :)

I am thrilled:SymbioSwap is one of the 6 selected 2025 Pure Ocean Projects! We will explore the role of algal symbionts in the survival of anemones under climate change. Thanks to @pure-ocean.bsky.social this opportunity – with @radecker.bsky.social and Christine Ferrier-Pagès tinyurl.com/pureocean

Looking forward to exploring how algal symbionts enable anemones to cope with the environmental conditions of the Mediterranean and the Anthropocene. Thanks @pure-ocean.bsky.social! A fun project lead by @cpogoreutz.bsky.social and together with Christine Ferrier-Pagès. tinyurl.com/pureocean

It’s been a couple of months – we recently published a new paper characterizing bacterial microenvironment on black-tip reef sharks🦈 🦈 🦈 check it out in #CoralReefs: doi.org/10.1007/s003... ... and in case you were wondering: yes, they do have #Endozoicomonas! #SymbioSky @cpjfrance.bsky.social

Miriam Reverter, Nathalia Catalina Delgadillo-Ordoñez, Anna Roik and I contributed a book chapter on coral reef fungi in the new Springer book “Coral Reef Microbiome”: link.springer.com/chapter/10.1... 🧬 🪸 🍄 A huge Thank You to Raquel Peixoto and @reefgenomics.bsky.social for this opportunity!

Join a world renowned marine lab in France. New Junior Professor Chair (CPJ) opened in the Biological Station in Roscoff. The position is focused on the ecological, evolutionary, and functional roles of marine fungi, crucial to understanding our oceans. www.sb-roscoff.fr/fr/2025/02/2...

#Job fairy 🧚‍♀️for our ERC Synergy project GENDHI The Paris School of Economics is recruiting a Postdoc Researcher in Social Sciences on fixed-term contract International Comparison of Socioeconomic Inequalities in Health with a Gender Perspective ⬇️ www.parisschoolofeconomics.eu/en/job-oppor...

Shout out to mushrooms for being so weird

Open rank position alert (share away): The Dept. of Biology at the U of Maryland, College Park invites applications from individuals studying fundamental questions in ecology and evolutionary biology using microbial systems for a tenure-track or tenured position at any rank bit.ly/ecoevomicro-...

new ms, to all shark lovers out there: distinct bacterial niche habitats within the ‘microbial landscape’ of black-tip reef sharks @unikonstanz.bsky.social kudos to @cpogoreutz.bsky.social & team link.springer.com/article/10.1...

Microenvironments of black-tip reef sharks (Carcharhinus melanopterus) provide niche habitats for distinct bacterial communities By @cpogoreutz.bsky.social et al. 🦈🦠🧬

📌 Welcome to the "Symbiosis" feed! Since it is now getting more lively, I am making a new pinned message. This feed is thought for being all things symbiosis (not only beneficial ones)! Post jobs, conferences, meetings, papers, etc. Tag your posts with #SymbioSky and they will appear here! 👇...