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Simonetta Gribaldo

@sgribaldo

Evolutionary microbiologist. Head of lab at Institut Pasteur, Paris. Microbial diversity and evolution. Phylogenomics, Tree of Life, Envelopes, Methanogens. https://research.pasteur.fr/en/team/evolutionary-biology-of-the-microbial-cell/

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05.10.2023
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Latest posts by Simonetta Gribaldo @sgribaldo

Job Details

Pls re-post: My department @oxfordbiochemistry.bsky.social are recruiting for several new faculty positions (links below). Broad search in molecular biology/biochemistry, across prokaryotes and eukaryotes. Interested in understanding life at the molecular level, this job might be for you!
1/n

05.03.2026 21:35 πŸ‘ 78 πŸ” 110 πŸ’¬ 2 πŸ“Œ 3

🧡 Proud to present a tour de force by postdoc @gregbwhitfield.bsky.social solving the mystery of how bacterial Tad pili can extend and retract with a single motor ATPase. Great collaboration with Lynne Howell, @dr-lori-burrows.bsky.social, @ianyyen.bsky.social www.biorxiv.org/content/10.6...

26.02.2026 15:56 πŸ‘ 40 πŸ” 15 πŸ’¬ 1 πŸ“Œ 1
Assistant/Associate/Full Professor Computational Biology Assistant/Associate/Full Professor Computational Biology

Join us as Assistant/Associate/Full Professor Computational Biology at Institute of Biology Leiden (IBL) / @leidenscience.bsky.social / @unileiden.bsky.social

Application deadline on 15 March 2026
πŸ‘‡
careers.universiteitleiden.nl/job/Assistan...

26.02.2026 10:52 πŸ‘ 21 πŸ” 22 πŸ’¬ 0 πŸ“Œ 0

Congrats @thibautbrunet.bsky.social!!

25.02.2026 17:40 πŸ‘ 4 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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Clonal-aggregative multicellularity tuned by salinity in a choanoflagellate - Nature The choanoflagellate Choanoeca flexa forms motile and contractile cell monolayers purely clonally, purely aggregatively or through a combination of both processes depending on environmental condi...

Clonal-aggregative multicellularity tuned by salinity in a choanoflagellate www.nature.com/articles/s41... #jcampubs

25.02.2026 17:06 πŸ‘ 51 πŸ” 23 πŸ’¬ 0 πŸ“Œ 2

Come work with Ben Berks FRS in Oxford
2 x PDRA posts: Molecular Analysis of Bacterial Outer Membrane Protein Biogenesis

2 complementary projects investigating bacterial outer membrane protein biogenesis. Building on our recent work (Nature (2015) 647: 479-487)

my.corehr.com/pls/uoxrecru...

24.02.2026 07:49 πŸ‘ 15 πŸ” 17 πŸ’¬ 1 πŸ“Œ 1
Job opening for Research Group Leader in Structural Studies at MRC Laboratory of Molecular Biology, focusing on macromolecular structures.

Job opening for Research Group Leader in Structural Studies at MRC Laboratory of Molecular Biology, focusing on macromolecular structures.

Are you a structural biologist pushing the boundaries of molecular science with an ambitious research programme?
Join our Structural Studies Division as a tenure-track Group Leader, with core funding, world-leading facilities & enthusiastic colleagues.
Apply by 16 MAR
www.nature.com/naturecareer...

24.02.2026 09:45 πŸ‘ 36 πŸ” 48 πŸ’¬ 0 πŸ“Œ 2

There's still time to apply for this PhD position!

24.02.2026 10:48 πŸ‘ 9 πŸ” 8 πŸ’¬ 0 πŸ“Œ 0

Before he passed away in 2021, Tom Cavalier-Smith had drafted parts of his autobiography. It's now 'published' because GΓ‘spΓ‘r JΓ©kely put a lot of effort in! Please enjoy and share: doi.org/10.5281/zeno...

23.02.2026 14:37 πŸ‘ 28 πŸ” 13 πŸ’¬ 1 πŸ“Œ 1
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Our latest preprint: Together with the team of Jan LΓΆwe, @danieltamarit.bsky.social and many others we discovered and characterized several Asgard tubulin genes and propose that microtubule architecture and dynamics evolved in Asgard archaea prior to eukaryogenesis
www.biorxiv.org/content/10.6...

16.02.2026 16:43 πŸ‘ 134 πŸ” 61 πŸ’¬ 3 πŸ“Œ 4
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πŸ’‘ We are inviting you to nominate a woman in microbiology whose work or impact deserves to be seen.

Selected nominations will be featured on the FEMS website and across our social media channels on International Women’s Day, 8 March.

πŸ‘‰ Who inspires you? Nominate them by 4 March . buff.ly/AKyMbQD

19.02.2026 13:00 πŸ‘ 12 πŸ” 19 πŸ’¬ 1 πŸ“Œ 1
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New paper from my team detailing a greatly expanded genomic database of Asgard archaea revealing of high energy metabolism those related to eukaryotes! Led by @katyappler.bsky.social lots of help from @jameslingford.bsky.social @valdeanda.bsky.social @kassipan.bsky.social doi.org/10.1038/s415...

18.02.2026 16:00 πŸ‘ 147 πŸ” 60 πŸ’¬ 10 πŸ“Œ 3

πŸ‘‡πŸ‘‡πŸ§΅ #Asgard #eukaryogenesis

18.02.2026 16:51 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Happy to have you with us Katy, lots of cool science ahead!

18.02.2026 16:17 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Bravo Katy!!

18.02.2026 16:15 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Oxygen metabolism in descendants of the archaeal-eukaryotic ancestor - Nature Sequencing of marine sediments finds 136 newly identified Heimdallarchaeia and several novel lineages, and indicates that Heimdallarchaeia evolved distinct metabolic capabilities from other Asgar...

At long last! Check out the link to our publication in @nature.com to learn more. doi.org/10.1038/s415...
12/12

18.02.2026 16:12 πŸ‘ 22 πŸ” 9 πŸ’¬ 1 πŸ“Œ 1

The 'devil is in the details'. You have to look beyond author claims and try to understand why the various studies have come to different conclusions and read the explanations given by the authors themselves.

16.02.2026 11:17 πŸ‘ 7 πŸ” 3 πŸ’¬ 1 πŸ“Œ 0

Two more weeks to apply - come join us () in The Netherlands as a postdoctoral researcher on large-scale metagenomic exploration of new lineages!

12.02.2026 07:46 πŸ‘ 17 πŸ” 27 πŸ’¬ 1 πŸ“Œ 0
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Postdoc in Archaea Microbiology - Vacancy at Aarhus University Vacancy at Department of Biology - Microbiology, Aarhus University

Postdoc position on Asgard archaea in Thiago’s new lab for someone well trained in biochemistry, cloning, and protein purification:
international.au.dk/about/profil...

10.02.2026 14:36 πŸ‘ 16 πŸ” 15 πŸ’¬ 0 πŸ“Œ 1

Hi Melanie, same here, 95% and not funded. Practically you need 5/5 everywhere to succeed, and small comments like that will indeed kill it. Plus, I think this year there were double the number of applications, super tough. So, chin up to all the unlucky candidates, not your fault!!

09.02.2026 11:54 πŸ‘ 7 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Tenure-Track Assistant Professor / Associate Professor in Bioinformatics and/or Computational Biology at Aarhus University, Denmark - Vacancy at Aarhus University Vacancy at Department of Molecular Biology and Genetics - BiRC - Bioinformatics Research Center, Aarhus University

Aarhus University is seeking a Tenure-Track Assistant/Associate Professor in Bioinformatics/Co… https://nat.au.dk/en/about-the-faculty/vacant-positions-and-career/job/tenure-track-assistant-professor-associate-professor-in-bioinformatics-and-or-computational-biology-at-aarhus-university-denmark #job

07.02.2026 23:11 πŸ‘ 19 πŸ” 33 πŸ’¬ 0 πŸ“Œ 0

thanks! ah the old good times when we had 10 archaeal genomes ;-)

06.02.2026 08:04 πŸ‘ 1 πŸ” 0 πŸ’¬ 1 πŸ“Œ 0
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Evolution and diversity of oxidoreductases involved in redox balance and energy conservation - Nature Ecology & Evolution HORBEC are protein complexes involved in the regulation of redox balance and energy conservation. The authors develop a bioinformatic tool for HORBEC annotation in bacterial and archaeal genomes and r...

Passioned by #bioenergetics? Do not miss our new article on the evolutionary history of oxidoreductases with G. Borrel and @sgribaldo.bsky.social @archaeal.bsky.social @valdeanda.bsky.social @pasteur.fr @cnrs.fr @cnrsbiologie.bsky.social @natecoevo.nature.com (www.nature.com/articles/s41...).

03.02.2026 10:52 πŸ‘ 55 πŸ” 33 πŸ’¬ 2 πŸ“Œ 3

SAVE THE DATE!
The next instalment of the long-running Bacterial and Archaeal Cell Division Conference will take place at www.marriott.com/en-us/hotels..., Italy from the 20th to 23rd of April 2027.
Organisers: me, @s-lab.bsky.social, @awehenkel.bsky.social.
More info soon.

#MicroSky

26.01.2026 13:14 πŸ‘ 30 πŸ” 24 πŸ’¬ 0 πŸ“Œ 0
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Professurship (W2) in Microbiology - Regensburg (Stadt), Bayern (DE) job with UniversitΓ€t Regensburg | 12851113 UNIVERSITY OF REGENSBURG Β  The Faculty of Biology and Pre-Clinical Medicine invites applications for a Β  Professurship (W2) in Microbiology Β  To be...

A new year brings new opportunities: we are looking to fill a permanent professorship position with a Microbiologist preferably with expertise on archaeal biology, RNA biology or imaging techniques to unravel cell biology in prokaryotes! Please share and/or apply :)! www.nature.com/naturecareer...

05.01.2026 09:46 πŸ‘ 33 πŸ” 44 πŸ’¬ 0 πŸ“Œ 2

Seeking expressions of interest from researchers abroad for a Canada Impact+ Research Chair ($1M/year Γ— 8 + up to $6M CFI) in AI-enabled antibiotic discovery and/or AMR, phage & phage-based derivatives. Email me a short vision, CV, and 3–5 key papers. Deadline: March 10, 2026 (Intake 2: June 15).

07.01.2026 01:19 πŸ‘ 6 πŸ” 11 πŸ’¬ 0 πŸ“Œ 0

14 two-year postdocs for academics of any nationality who cannot continue their research due to US politics. Do share if you know of such.

19.12.2025 17:19 πŸ‘ 359 πŸ” 369 πŸ’¬ 1 πŸ“Œ 5
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🚨 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 πŸ§ͺ

#PostDoc @univie.ac.at

19.12.2025 00:24 πŸ‘ 98 πŸ” 117 πŸ’¬ 0 πŸ“Œ 3
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Dynamic protrusions mediate unique crawling motility in Asgard Archaea (Promethearchaeota) Crawling motility is a hallmark of eukaryotic cells and requires a dynamic actin cytoskeleton, regulated adhesion, and spatially organized signalling pathways1–3. Asgard archaea (phylum Promethearchae...

1. As we recently joined BlueSky, we want to repost this story for all newcomers!

We sat down with @radler92.bsky.social to get more insight into the unique videos from his recent preprint on Promethearchaeota (formerly Asgard archaea).

doi.org/10.1101/2025...

(Videos and info below)

18.12.2025 14:08 πŸ‘ 28 πŸ” 15 πŸ’¬ 2 πŸ“Œ 0
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Enterococcus faecalis: an overlooked cell invader | Microbiology and Molecular Biology Reviews SUMMARYEnterococcus faecalis and Enterococcus faecium are human pathobionts that exhibit a dual lifestyle as commensal and pathogenic bacteria. The pathogenic lifestyle is associated with specific conditions involving host susceptibility and intestinal ...

🧡Enterococcus faecalis is not just an extracellular organism. 🧡 A growing body of work shows it can survive + REPLICATE inside host cells, and that intracellular life may seed persistence, dissemination, and reinfection. 1/n #MMBR @asm.org journals.asm.org/doi/10.1128/...

18.12.2025 09:19 πŸ‘ 46 πŸ” 12 πŸ’¬ 4 πŸ“Œ 2