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Justine Collier

@justinecollier.bsky.social
296 followers 190 following 17 posts

Associate Professor at the Department of Fundamental Microbiology at the University of Lausanne. Also vice-Director of its School of Biology. Passionate about bacterial genetics!

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Reposted by Justine Collier
Charles Mullon @charlesmullon.bsky.social · 03/08/2026
Looking for an Associate Prof position? Interested in behavioural ecology & cultural evolution? Come join us at the Dpt of Ecology and Evolution in Lausanne🇨🇭 @dee-unil.bsky.social @unil.bsky.social! Great department & great place to live. Pls RP. Apply here: wwwfbm.unil.ch/releve/appli...
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fbm-unil.bsky.social @fbm-unil.bsky.social · 23/06/2026
🎉 Félicitations aux professeures 𝗦𝗮𝗿𝗮 𝗠𝗶𝘁𝗿𝗶 @saramitri.bsky.social @dmf-unil.bsky.social et 𝗧𝗮𝗻𝗷𝗮 𝗦𝗰𝗵𝘄𝗮𝗻𝗱𝗲𝗿 au Département d’écologie et évolution @fbm-unil.bsky.social @unil.bsky.social qui reçoivent chacune un ERC Advanced Grant @erc.europa.eu 👉 www.unil.ch/news/fr/1781...
unil.ch
Deux ERC Advanced Grants pour la FBM
Les professeures Sara Mitri, au Département de microbiologie fondamentale, et Tanja Schwander, au Département d’écologie et évolution de l’Unil, reçoivent chacune un ERC Advanced Grant de l’European R...
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Nature Microbiology @natmicrobiol.nature.com · 12/06/2026
Out Now! Bacterial cell division protein FtsZ complexes with a phage protein to activate bacterial immunity #MicroSky
go.nature.com
Bacterial cell division protein FtsZ complexes with a phage protein to activate bacterial immunity
Nature Microbiology, Published online: 12 June 2026; doi:10.1038/s41564-026-02384-6The activation of an antiphage defence system relies on host factors targeted by phages, a mechanism analogous to the way that eukaryotic innate immune systems detect pathogen-induced perturbations of host cells through effector-triggered immunity.
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James Gahan @jgahan.bsky.social · 20/05/2026
We are looking for a new colleague to join us in Galway. The position is in Biochemistry and if research focus lines up we hope the successful person will join us in the Centre for Chromosome biology (chromosome.ie). Reach out if you are interested in applying! tinyurl.com/2jy4rj3r
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Justine Collier @justinecollier.bsky.social · 02/06/2026
I am delighted to share our latest preprint: doi.org/10.64898/202.... Fantastic work from my past and present lab members @flofournes.bsky.social, Sandra Martin and Nicolas Pellaton. Also many thanks to our precious collaborators @gruberlab.bsky.social and to @snsf.ch for funding this research.
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Marie-Eve VAL @val-meve.bsky.social · 04/05/2026
This one means a lot. Our paper, “Large extrachromosomal replicons are widespread across bacterial lineages and show coordinated replication termination and spatial coupling with the chromosome,” is out! doi.org/10.1038/s414...
doi.org
Large extrachromosomal replicons are widespread across bacterial lineages and show coordinated replication termination and spatial coupling with the chromosome - Nature Communications
Bacterial genomes often include extrachromosomal replicons, ranging from small plasmids to chromosome-scale replicons. Here, Czarnecki et al. analyse more than 40,000 complete bacterial genomes and sh...
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Martin Thanbichler @thanbichlerlab.bsky.social · 04/05/2026
Discussion Meeting of the VAAM special group "Microbial Cell Biology" October 5–7, 2026 | Marburg, Germany More information: mcb2026.eventbrite.com
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Jan-Willem Veening @veeninglab.com · 24/04/2026
Spring beers with @gruberlab.bsky.social @mblokesch.bsky.social @justinecollier.bsky.social
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Stella Hurtley @smhsci.bsky.social · 17/04/2026
Out now in @science.org Repurposing of a DNA segregation machinery into a cytoskeletal system controlling cell shape | Science www.science.org/doi/10.1126/...
science.org
Repurposing of a DNA segregation machinery into a cytoskeletal system controlling cell shape
Bacteria, like eukaryotes, use conserved cytoskeletal systems for intracellular organization. The plasmid-encoded ParMRC system forms actin-like filaments that segregate low–copy number plasmids. In m...
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Justine Collier @justinecollier.bsky.social · 15/04/2026
Epigenetic regulation in prokaryotes: transcriptional and phenotypic outcomes of DNA methyltransferase activity url: academic.oup.com/femsre/artic...
academic.oup.com
Epigenetic regulation in prokaryotes: transcriptional and phenotypic outcomes of DNA methyltransferase activity
This review shows how DNA methylation acts as a regulatory layer in bacteria and archaea, shaping diverse biological traits and behaviours.
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Melanie Blokesch @mblokesch.bsky.social · 29/03/2026
Open postdoc position in my lab on HGT and interbacterial competition. We seek candidates with a PhD in microbiology (or related fields)+ strong 1st-author publications. Curious, highly motivated, and dedicated team players ready to contribute fully are encouraged to apply. Details: tiny.cc/cz01101
tiny.cc
Open Positions
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Melanie Blokesch @mblokesch.bsky.social · 10/04/2026
Excited to share our new paper out today in @science.org 🎉 We show that HGT via natural competence drives diversification of chromosomal integrons in V. cholerae 🤩 Below a 🧵 on key findings incl. background on natural competence in V. cholerae 1/ #microsky #phagesky www.science.org/doi/10.1126/...
science.org
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Courtney Ellison @ckellison.bsky.social · 26/03/2026
I am pleased to share my lab’s latest publication - Acinetobacter species lack canonical DNA repair pathway activation mechanisms, and we discovered a conserved transcriptional activator that fills this role: academic.oup.com/nar/article/...
academic.oup.com
A WYL transcriptional regulator activates the DNA damage response pathway in Acinetobacter species
Abstract. The ability to sense DNA damage and activate DNA damage response pathways is critical for repairing DNA damage in all domains of life. The most w
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unil.bsky.social @unil.bsky.social · 06/03/2026
Égalité dans le recrutement professoral : une dynamique encourageante
dlvr.it
Égalité dans le recrutement professoral : une dynamique encourageante
À l’occasion du 8 mars, Journée internationale des droits des femmes, la Direction revient sur l’évolution du recrutement professoral à l’Unil au cours des trois dernières années. La part de femmes recrutées progresse nettement, même si atteindre la parité suppose un engagement constant dans la durée.
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Sophie G Martin @sophiemartinlab.bsky.social · 03/03/2026
You are finishing your PhD and looking to continue in science? The Martin lab @biology-unige.bsky.social has an open postdoctoral position in cell biology to study cell-cell fusion. For more information, please consult mocel.unige.ch/research-gro.... Thanks for reposting!
mocel.unige.ch
Contact/Job - Department of Molecular and Cellular Biology - UNIGE
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Géraldine Laloux @lalouxlab.bsky.social · 05/03/2026
#MicroSky Please RT @erc.europa.eu-funded postdoc position in my lab to identify the molecular basis of prey-predator interactions using our favorite micro-vampire Bdellovibrio exovorus as a model. Let's find what the bite is made of! 🧛 Flexible start date. Info: euraxess.ec.europa.eu/jobs/415877
euraxess.ec.europa.eu
Postdoctoral researcher in molecular and cellular bacteriology - ERC CoG VAMPIRE
The research group of Prof Géraldine Laloux at the de Duve Institute (UCLouvain) is looking for a highly motivated postdoc to elucidate the molecular factors underlying bacterial prey-predator interac...
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unil.bsky.social @unil.bsky.social · 25/02/2026
«Ma Thèse en 180 secondes» de retour à l'Unil jeudi 26 mars 2026
dlvr.it
«Ma Thèse en 180 secondes» de retour à l'Unil jeudi 26 mars 2026
Le jeudi 26 mars 2026, l’Amphimax vibrera au rythme de la 10e édition de «Ma thèse en 180 secondes». Dix-sept doctorantes et doctorants monteront sur scène pour un défi d'éloquence où le public détiendra une partie du verdict.
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Justine Collier @justinecollier.bsky.social · 06/02/2026
Cytosine methylation contributes to the fitness of Caulobacter cells naturally expressing a Vsr-like protein: iScience www.cell.com/iscience/ful... 🎊Congrats to my fantastic lab members @noemiematthey.bsky.social , Giorgia Wennubst and Nicolas Pellaton, and to our precious GTF collaborators! 🎉
cell.com
Cytosine methylation contributes to the fitness of Caulobacter cells naturally expressing a Vsr-like protein
Properties of biomolecules; Epigenetics; Microbial genomics; Transcriptomics
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fbm-unil.bsky.social @fbm-unil.bsky.social · 07/01/2026
🕯️🕊️ La Faculté de biologie et de médecine (FBM) s’associe au mouvement de #solidarité national à la suite du #drame survenu à #Crans-Montana. Elle exprime sa profonde sympathie à toutes les personnes touchées par ce tragique événement, aux victimes et à leurs proches. 🤍 ⚫ www.unil.ch/news/fr/1767...
unil.ch
La FBM émue et solidaire face au drame de Crans-Montana
Message de soutien et de solidarité
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Wiep Klaas Smits (ExpBac/CMAT) @smitslab.bsky.social · 02/01/2026
A single DNA methylation site regulates cell fate during Clostridioides difficile sporulation www.biorxiv.org/content/10.6...
biorxiv.org
A single DNA methylation site regulates cell fate during Clostridioides difficile sporulation
DNA methylation is a widespread phenomenon in bacteria that can regulate gene expression, although the mechanisms underlying this epigenetic regulation are often poorly understood. In Clostridioides d...
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Kristina Jonas @krijonas.bsky.social · 12/12/2025
Excited to see our new work published! We have established the evolutionary and ecological context of our favorite model Caulobacter and made some unexpected findings. Who would have thought that close relatives lack dimorphism? And have potential for phototrophy? www.nature.com/articles/s41...
nature.com
Widespread potential for phototrophy and convergent reduction of lifecycle complexity in the dimorphic order Caulobacterales - Nature Communications
This study maps out the diversity and evolution of the bacterial order Caulobacterales, including the model organism C. crescentus, which reveals widespread phototrophy and illuminates the evolution o...
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PLOS Biology @plosbiology.org · 05/12/2025
The bacterial #SOSresponse unfolds in a defined temporal order, but how does this arise? @adityakamat.bsky.social @anjbadri.bsky.social &co show that intrinsic #promoter strength, modulated by #SigmaFactor usage, governs timing of SOS gene activation in Caulobacter @plosbiology.org 🧪 plos.io/4oAKf0Q
Comparative analysis of the Caulobacter SOS response under mitomycin-C damage. Top left: Schematic summarizing the RNA-sequencing experiment. Caulobacter cells were treated with 0.25 μg/ml mitomycin-C for 20 and 40 min (Created in BioRender). Samples were collected for transcriptomic analysis before (0 min, control), and at 20 and 40 min post damage induction. Top right: Venn diagram representing the genes that meet the listed criteria: 1. Genes induced in wild type cells under MMC damage at 40 min (white circle). 2. Genes induced in ΔlexA in the absence of damage (blue circle). 3. Genes not induced in ΔrecA background under MMC damage at 40 min (gray circle). Genes fulfilling all three criteria are in the gray circle. Number of genes in each category is indicated. Bottom left: Bar graph indicating whether promoters of the shortlisted genes exhibit binding by the LexA protein as assessed from ChIP-seq analysis [10]. Bottom right: LexA ChIP-seq profile for genes belonging to the SOS response. Normalized reads (in rpm) are represented for 500 bp upstream and downstream of the gene CDS.
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SFM Microbial Pathogenesis @sfmpathogenesis.bsky.social · 18/11/2025
Two M. tuberculosis RelE toxins don’t cut mRNA, they slice 16S rRNA itself, shutting down translation in a totally unexpected way, new study reveals. A big leap in understanding TB’s survival tricks and new angles for therapies. 📖 shorturl.at/Z8MVX ✍️ @genevauxpierre.bsky.social & coll. #MicroSky
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Jack Bravo @jpkbravo.bsky.social · 02/12/2025
📢 We have multiple open PhD positions to study bacterial immune systems using cutting-edge cryo-EM, microbiology, and biochemistry in our group! Join us and uncover how bacterial defenses eliminate predators and engineer next-gen biotech tools. 🔥 Apply by Jan 8, 2026 Details: phd.pages.ista.ac.at
phd.pages.ista.ac.at
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Martin Thanbichler @thanbichlerlab.bsky.social · 02/11/2025
📢 Postdoc position: Cell Biology of Cyanobacteria in my group, as part of the Excellence Cluster "Microbes for Climate" (M4C) in Marburg, Germany. More information at shorturl.at/wNnDT (see Project 2) 🔗Apply at shorturl.at/VsEDl 📅Deadline: Nov 16, 2025 Please repost. #Postdoc
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Séamus Holden 🔬🦠🧫 @seamusholden.bsky.social · 22/10/2025
PhD project available in my lab. Email me with CV if interested www.findaphd.com/phds/project... #microsky #bioimaging
findaphd.com
Using super-resolution microscopy to investigate the mechanistic principles of bacterial cell wall remodelling at University of Warwick on FindAPhD.com
PhD Project - Using super-resolution microscopy to investigate the mechanistic principles of bacterial cell wall remodelling at University of Warwick, listed on FindAPhD.com
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Jan-Willem Veening @veeninglab.com · 14/10/2025
The @nccr-antiresist.bsky.social PhD fellowship call is now open! Apply now (deadline 15 January) for a unique PhD Fellowship in Antibiotic Discovery. Our lab will also offer a project that a selected candidate can choose! www.nccr-antiresist.ch/join-us/
nccr-antiresist.ch
NCCR AntiResist | 2025 Fellowships in Infection Biology | Join Us
Open PhD Fellowship position in Infection Biology, and Fellowship for Clinicians, both now open
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Julia Frunzke @frunzkelab.bsky.social · 08/10/2025
Please RT: We have an opening for a junior group leader position in „Phage Biology & Biotechnology“. www.fz-juelich.de/de/karriere/... Interested candidates are encouraged to contact me via email for further details. @spp2330.bsky.social; @mibinet.bsky.social
fz-juelich.de
Junior Group Leader - Phage Biology & Biotechnology
As a leading research institution for microbial biotechnology the Institute of Bio- and Geosciences - Biotechnology (IBG-1, https://www.fz-juelich.de/de/ibg/ibg-1 ) at the Forschungszentrum Jülich foc...
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Emmanuele Severi @emmseveri.bsky.social · 04/10/2025
www.science.org/doi/10.1126/... #microsky
science.org
Chromosome architecture affects virulence and competitiveness in Agrobacterium tumefaciens C58
Chromosome architecture influences Agrobacterium fitness, competitiveness, and virulence, shaping its adaptation and evolution.
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Tung Le @tunglejic.bsky.social · 03/10/2025
Independent research fellowships leading to tenured positions at the John Innes Centre. Repost = nice. Thank you very much!!!
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Erin Goley @goleylab.bsky.social · 20/09/2025
🚨🚨🚨Calling all Caulophiles and Alpha aficionados - stayed tuned for a virtual CauloCon in early 2026. And HOPEFULLY an in person alpha meeting in 2027!! DM me or @chienlab.bsky.social w questions or to stay in the know.
media.tenor.com
two men are standing next to each other and one of them is saying `` you wanna hang out shoot the breeze ''
ALT: two men are standing next to each other and one of them is saying `` you wanna hang out shoot the breeze ''
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Jennifer Hood-DeGrenier @jhood-degrenier.bsky.social · 04/09/2025
I'm very excited to announce that the Worcester State University Biology Department has been approved to hire TWO new tenure-track faculty members to begin September 1, 2026! Here is a link to the job ad and application site: worcester.interviewexchange.com/jobofferdeta...
worcester.interviewexchange.com
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fbm-unil.bsky.social @fbm-unil.bsky.social · 18/09/2025
Apply now for FBM #PhD #Fellowships in #Life #Sciences – join one of the Faculty’s leading laboratories. 🚨 Application deadline for fellowships: October 6, 2025. ➡️ www.unil.ch/news/en/1756... @unil.bsky.social @dmf-unil.bsky.social @dee-unil.bsky.social @dib-unil.bsky.social #fbm #unil
unil.ch
PhD Fellowships in Life Sciences: a competition open to future doctoral students.
Apply now for FBM PhD Fellowships in Life Sciences – join one of the Faculty’s leading laboratories.
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nikogeldner.bsky.social @nikogeldner.bsky.social · 17/09/2025
Call for a tenure-track position at our Department of Plant Molecular Biology in Lausanne! We are searching for promising early-career researchers in the broad field of plant-organismal interactions. Deadline: November 30, 2025 - Please re-post! career5.successfactors.eu/career?caree...
career5.successfactors.eu
Career Opportunities: DBMV: Tenure Track Assistant Professor towards Associate Professor in the field of Plant-organism (22484)
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Cara Boutte @caraboutte.bsky.social · 16/09/2025
My institution is looking to hire a new microbiologist: apply.interfolio.com/173702. Please share, and let me know if you have any questions about the position or UTA.
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
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Paul & Virginie - Centriole Lab @centriolelab.bsky.social · 15/09/2025
Be our new colleague! 🎉 The Dept of Molecular and Cellular Biology at the University of Geneva is hiring an Assistant Professor or Associate Professor. 👉 More details here: lnkd.in/e8Z9eAm4 👉 Our department: mocel.unige.ch Please feel free to share this opportunity with your network.
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Justine Collier @justinecollier.bsky.social · 11/09/2025
med.stanford.edu/news/all-new...
med.stanford.edu
Scientist, advocate and entrepreneur Lucy Shapiro to receive Lasker-Koshland Special Achievement Award
Lucy Shapiro entered biology “like a bolt of lightning.” A groundbreaking scientist, mentor, drug developer and advocate for science communication is recognized for a lifetime of achievements.
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Justine Collier @justinecollier.bsky.social · 05/09/2025
🤩 Exciting Summer! 🤩 Two of my former postdocs in Switzerland🇨🇭 obtained Lecturer positions (Maîtres de Conférences) in French universities 🇨🇵 : congrats to Antonio Frandi and Florian Fournès !!!! 👏 La relève est assurée! All the best to both of you for this new start. 🤩
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Martin Pacesa @martinpacesa.bsky.social · 27/08/2025
Exciting to see our protein binder design pipeline BindCraft published in its final form in @Nature ! This has been an amazing collaborative effort with Lennart, Christian, @sokrypton.org, Bruno and many other amazing lab members and collaborators. www.nature.com/articles/s41...
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Didier Mazel @amazeld.bsky.social · 20/08/2025
For those who love bacterial replicons, The ultimate review, from our lab, signed by the master of their evolution. ‪@val-meve.bsky.social‬ www.sciencedirect.com/science/arti...
sciencedirect.com
Taming wild replicons: evolution and domestication of large extrachromosomal replicons
Bacterial genomes often contain extrachromosomal replicons (ERs), ranging from small, mobile plasmids to large, stably inherited elements, such as meg…
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Justine Collier @justinecollier.bsky.social · 28/07/2025
🔬 🧫 The Collier lab is hiring a new Postdoc! 🧬 🧪 We are looking for a motivated candidate to study mechanisms controlling DNA replication in Alphaproteobacteria with complex genomes. --> Apply by 30th August 2025 using this link: tinyurl.com/y5e5pm59
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Jesse Shapiro @bjesseshapiro.bsky.social · 01/07/2025
One of my favourite serendipitous results from the lab came about because we were long-read sequencing bacterial: Vibrio cholerae, which is "supposed to" have TWO circular chromosomes (3 + 1 million base pairs) often has just ONE fused chromosome (4 Mbp). www.nature.com/articles/s41... (1/n)
nature.com
Prevalent chromosome fusion in Vibrio cholerae O1 - Nature Communications
The pathogenic bacterium Vibrio cholerae typically has two circular chromosomes. Here, Cuénod et al. analyse 467 clinical isolates and identify several independent chromosome fusion events that are li...
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Jan-Willem Veening @veeninglab.com · 10/06/2025
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...
wwwfbm.unil.ch
DMF: Tenure Track Assistant Professor towards Associate Professor in Molecular Microbiology - Site des postulations FBM
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Christian Fankhauser @chfankhauser.bsky.social · 16/06/2025
Great job opportunity at The Center for Integrative Genomics, Lausanne University, Switzerland unil.ch/cig/en/home.... For a tenure-track Assistant Professor position. More details for how to apply are here nature.com/naturecareer...
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DMF UNIL @dmf-unil.bsky.social · 10/06/2025
Come join us in beautiful Lausanne! Deadline for applications: August 10th, 2025 wwwfbm.unil.ch/releve/appli...
wwwfbm.unil.ch
DMF: Tenure Track Assistant Professor towards Associate Professor in Molecular Microbiology - Site des postulations FBM
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Justine Collier @justinecollier.bsky.social · 10/06/2025
Just back home after a fantastic Bacterial Cell Biology and Development GRC conference. Many thanks to the organizers Pam Brown and Ethan Garner. It was fabulous to meet you all again!
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Erin Goley @goleylab.bsky.social · 06/06/2025
Just part of the Caulo crew at BCBD GRC. We would’ve gotten all the alphaphiles but it was too many people to herd into a pic!
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Eduardo Rocha @epcrocha.bsky.social · 09/05/2025
Our paper on how integrons are biobanks of novel minimal defense systems is now out www.science.org/doi/10.1126/... Two main conclusions on this excellent work led by @eloilittner.bsky.social @baptistedarracq.bsky.social 1/n
science.org
Sedentary chromosomal integrons as biobanks of bacterial antiphage defense systems
Integrons are genetic systems that drive bacterial adaptation by acquiring, expressing, and shuffling gene cassettes. While mobile integrons are well known for spreading antibiotic resistance genes, t...
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Liselot Dewachter @liselotdewachter.bsky.social · 05/05/2025
Job alert 🦠🧪: We are looking for a postdoc (and PhD candidate!) to join our team at UCLouvain/de Duve institute in Brussels, Belgium. You will work on our ERC Starting Grant project aimed at characterizing cell cycle regulation in S. pneumoniae. More information here: dewachterlab.com/join-us/.
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Melanie Blokesch @mblokesch.bsky.social · 25/04/2025
Join the Blokesch lab (@EPFL) as a postdoc in Molecular Microbiology 🤩 Study Vibrio cholerae defense systems (phage/plasmid) in a dynamic, collaborative environment in Lausanne close to Lake Geneva in 🇨🇭! Please visit my lab's webpage for details about the position and how to formally apply.
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