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Eric Déziel

@dezieleric.bsky.social
612 followers 429 following 21 posts

Microbiologist, professor-investigator at the Armand-Frappier Santé Biotechnologie research center of INRS - Sociomicrobiology, Quorum Sensing, Biosurfactants, Pseudomonas, Burkholderia

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Reposted by Eric Déziel
Rachel M. Wheatley @rachelmwheatley.bsky.social · 02/09/2026
Our special issue on the social lives of bacteria is out today 🎉 it was a pleasure to edit this collection over the last year with @friendlymicrobe.bsky.social. Read our editorial here: portlandpress.com/essaysbioche...
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Prof Cynthia Whitchurch FAA🏳️‍🌈 @cwhitch.bsky.social · 02/12/2024
I'm recruiting! I'm looking for a motivated postdoctoral scientist to join my new team at SCELSE in Singapore. The role will explore various aspects of how #eDNA is produced and utilised in #Pseudomonas aeruginosa biofilms. #Microsky #phagesky #Science ntu.wd3.myworkdayjobs.com/Careers/job/...
ntu.wd3.myworkdayjobs.com
Research Fellow (eDNA in Biofilms)
The Singapore Centre for Environmental Life Sciences Engineering (SCELSE) is a unique interdisciplinary Research Centre of Excellence (RCE), funded by National Research Foundation, Ministry of Educati...
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George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 30/06/2026
Pls share: U of Washington has an opening for a tenure-track faculty position at the rank of Assistant Professor. This position is expected to specialize in molecular virology or bacteriology. Here is a link: microbiology.washington.edu/index.php/ne...
microbiology.washington.edu
Micro is Hiring! | UW Microbiology
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George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 23/06/2026
Our Dept of Microbiology & Immunology @Geisel School of Medicine @Dartmouth has an opening for an Assistant Professor. Looking for programs bridging multiple areas in Micro & Immuno. A great place to be! Programs: www.M2P2.org www.dartmouthbiofilm.org Job ad: apply.interfolio.com/187637
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Centre SÈVE @centre-seve.bsky.social · 20/05/2026
Excellent dossier de @quebecscience.bsky.social sur l'agriculture durable. Le travail de certains de nos membres Centre SÈVE est mis en valeur: Maxime Paré, Tagnon Missihoun et @dezieleric.bsky.social ! 🌱 🧪 www.quebecscience.qc.ca/partenariat/...
quebecscience.qc.ca
Cultiver autrement : en chemin vers une agriculture durable
Préparer l’agriculture de demain
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Eric Déziel @dezieleric.bsky.social · 07/05/2026
Urinary Tract Infections: cranberry as a potential ally to antibiotics | INRS : inrs.ca/en/news/urin...
inrs.ca
Urinary Tract Infections: cranberry as a potential ally to antibiotics
An INRS discovery opens new avenues against bacterial resistance. Each year, more than 400 million people worldwide, most of them women, experience urinary tract infections (UTIs), most commonly cause...
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George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 14/04/2026
New in JB: Borriss, Gao & Fan review the role of Bacillus velezensis, a strain isolated from a wheat field in Australia some 50 years ago, as a model for studying plant-associate beneficial bacteria. journals.asm.org/doi/10.1128/... @asm.org #JBacteriology
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Jon Paczkowski🌹 @paczkowskilab.bsky.social · 01/04/2026
A true labor of love for @calebmallery.bsky.social is out now in PLOS Pathogens: a review article where we highlight current and emerging examples of key protein-protein interactions with LuxR-type receptors that control community behaviors and pathogenesis. journals.plos.org/plospathogen...
journals.plos.org
Expanding the LuxR-type receptor functional repertoire: Protein-protein interactions in quorum sensing regulation
Quorum sensing (QS) enables bacteria to coordinate gene expression in response to population density, with LuxR-type transcription factors playing a central role in this process for many Gram-negative...
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Joerg Overhage @joergoverhage.bsky.social · 29/01/2026
Check out our most recent publication on antibiotic tolerance in biofilms. Thanks to all students for getting this done! Characterization of β-lactam resistance in dual-species biofilms of Pseudomonas aeruginosa and methicillin-sensitive Staphylococcus aureus www.tandfonline.com/doi/full/10....
tandfonline.com
Characterization of β-lactam resistance in dual-species biofilms of Pseudomonas aeruginosa and methicillin-sensitive Staphylococcus aureus
Polymicrobial biofilms are frequently associated with chronic infections and are highly tolerant to antibiotic treatment. Given that β-lactam antibiotics are the most prescribed antibiotics worldwi...
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George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 28/01/2026
A must read! The constant and often irrational renaming of microbes is out of control, and bad for microbiology and microbiologists. journals.asm.org/doi/10.1128/...
journals.asm.org
The disputed identity of Pseudomonas putida KT2440: when taxonomists rename your favorite microbe | mBio
Names matter; they are not mere labels. They operate as anchors of memory, social coordinates, and references of collective identity. When a name becomes established through long-term use and broad ad...
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David Bikard @dbikard.bsky.social · 28/01/2026
🚨 Hiring Alert! 🚨My lab at Institut Pasteur is recruiting several Postdocs! We have exciting open projects in: 🦠 Synthetic Biology and🛡️ Bacterial Immunity. Come do great science with us in the middle of Paris! 🇫🇷🥐 research.pasteur.fr/en/job/postd...
research.pasteur.fr
Postdoctoral position - Synthetic Biology / Bacterial Immunity - Research
The Bikard lab at Institut Pasteur in Paris is seeking to hire postdoctoral researchers. We are investigating bacteria / bacteriophages interactions, and the genetic innovation that happens at this in...
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Michael Brockhurst @brockhurstlab.bsky.social · 20/12/2025
Manchester Institute of Biotechnology is looking for a new Professor. There are a few priority areas including microbial engineering (broadly defined, from pathways to cells to microbiomes). Closing 12 Jan. Join us in the best city in the UK 😜 www.jobs.manchester.ac.uk/Job/JobDetai...
jobs.manchester.ac.uk
Professorial Appointment within the Manchester Institute of Biotechnology:Manchester Institute of Biotechnology
Applications are invited for a professorial appointment to be based in the Manchester Institute of Biotechnology (MIB) at the University of Manchester (UoM). The successful candidate will join a dynamic research environment at an exciting time and will help shape the institute research priorities and national/international profile. We are open to high quality applications from across the broad engineering biology and biotechnology landscape. Specific areas of interest include but are not limited to chemical biology of disease related proteins, natural product biosynthesis and enzyme discovery; structural biology and mechanistic enzymology; and microbial engineering.
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George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 15/12/2025
New in JB: Trottier, Déziel et al. show that despite the conservation of the PqsE sequence of P. aeruginosa and some key conserved functions, including and essential role for HAQ biosynthesis, this protein has different impacts across strains of Pa. journals.asm.org/doi/10.1128/...
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Reposted by Eric Déziel
Joanne Flynn @joanneflynn19.bsky.social · 04/12/2025
Hey friends. I’m looking for a postdoc interested in studying host-pathogen interactions and immunology of tuberculosis. Send me some good people! We have a great group here! Email me joanne@pitt.edu. Thanks!
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Canadian Journal of Microbiology @canjmicrobio.bsky.social · 24/11/2025
Join our wonderful #PeerReview team! We’re looking for a Scientific Editor to help uphold rigorous peer review and support our editors, reviewers, and authors. Applications are now open. Apply now 📚▶️ ow.ly/RCNQ50XulOF #ScienceJobs #NowHiring
Close-up of a fly resting on a green leaf with text announcing a Scientific Editor job opening at Canadian Science Publishing.
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BejaLabTechnion @bejalab.bsky.social · 12/11/2025
WOW! Fluorescein-based dyes are not valid reporters of oxidative stress in bacteria, and conclusions based on their use must be reconsidered www.pnas.org/doi/10.1073/...
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Ajai Dandekar @ajaidandekar.bsky.social · 23/10/2025
New lab paper! Andrew Frando describes how MexT alters the quorum sensing cascade in P. aeruginosa. /1 With Nicole Smalley; two undergraduates, Jamal Omar and Bobby Parsek; and @dezieleric.bsky.social, @mariecg.bsky.social, and Mylène Trottier at INRS in Montreal journals.asm.org/doi/10.1128/...
journals.asm.org
Modulation of the Pseudomonas aeruginosa quorum sensing cascade by MexT-regulated factors | mBio
Bacteria interact with both abiotic and biotic factors in their environment. Quorum sensing (QS) is one mechanism that bacteria use to communicate with other bacteria and coordinate behaviors in the p...
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Emmanuele Severi @emmseveri.bsky.social · 08/10/2025
www.biorxiv.org/content/10.1... #microsky
biorxiv.org
Pseudomonas aeruginosa lasR is a keystone gene in polymicrobial cultures
The airways of people with cystic fibrosis (CF) are often co-infected by Pseudomonas aeruginosa and a variety of other co-habiting microbes; the infections are polymicrobial. P. aeruginosa isolates fr...
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Reposted by Eric Déziel
George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 03/10/2025
New in JB: Déraspe, Roy et al. perform a comparative genomics study of the PA7-clade of P. aeruginosa - now recognized as a distinct species, Pseudomonas paraeruginosa. This analysis revealed 2 sub-clades, the lack of T3SS & multiresistance. journals.asm.org/doi/10.1128/... @asm.org #JBacteriology
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Fabrice Jean-Pierre @fabricejpierre.bsky.social · 30/09/2025
Plus que 10 jours avant la fin des soumissions des résumés pour le BiSP qui aura lieu le 5-6 novembre 2025 à l'Université de Sherbrooke. Nous aurons aussi la chance de recevoir @lalouxlab.bsky.social et @bjesseshapiro.bsky.social Partagez! @micrhub.bsky.social event.fourwaves.com/bispmicrhubs...
event.fourwaves.com
BiSP - MicrHub
Fourwaves - BiSP - MicrHub
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George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 30/09/2025
Please share - an Assist Prof position in microbiology employmentopportunities.umb.edu/mob/cw/en-us... @asm.org
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Adam R Houston @healthlawadamh.bsky.social · 19/09/2025
Interesting: Canada's updated antimicrobial resistance pathogen prioritization list. 🦠📜 "Canada’s 2025 #AMR priority pathogens: Evidence-based ranking and public health implications" journals.plos.org/plosone/arti...
Screenshot of Table 1 from the linked article, listing the AMR priority pathogens
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Ákos T Kovács @evolvedbiofilm.bsky.social · 18/09/2025
Volatile organic compounds from Bacillus velezensis FZB42 remodel Arabidopsis root architecture by an auxin-dependent mechanism -in Plant Cell Reports (Springer) link.springer.com/article/10.1...
link.springer.com
Volatile organic compounds from Bacillus velezensis FZB42 remodel Arabidopsis root architecture by an auxin-dependent mechanism - Plant Cell Reports
Key message Volatile organic compounds produced by plant growth-promoting rhizobacteria promote lateral root development by modulating the auxin signaling pathway in Arabidopsis thaliana, thereby remo...
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Eric Déziel @dezieleric.bsky.social · 13/09/2025
www.the-scientist.com/lasker-award...
the-scientist.com
Lasker Award for Uncovering Spatial Organization in Bacterial Cells
Lucy Shapiro received this year’s Lasker Special Achievement Award for her discovery of how bacteria use genetic circuits to encode three-dimensional cellular life.
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buhaririinstitute.bsky.social @buhaririinstitute.bsky.social · 08/09/2025
How do bacteria organize? 🦠 @bostonu.bsky.social researchers reveal in Cell Systems that colony shape, metabolism & nutrients drive growth, diversity & striking rings. Learn more: spr.ly/63321AGQbb @dsegre.bsky.social
Cell Systems Publication
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Tiffany Zarrella @tiffzarrella.bsky.social · 06/09/2025
Pseudomonas aeruginosa senses exopolysaccharide trails using type IV pili and adhesins during biofilm formation by O'Toole, Parsek, & Wong groups www.nature.com/articles/s41...
nature.com
Pseudomonas aeruginosa senses exopolysaccharide trails using type IV pili and adhesins during biofilm formation - Nature Microbiology
Opposing forces generated by exopolysaccharide trail binding versus type IV pilus retraction generate a high cyclic diGMP–high cyclic AMP state in Pseudomonas aeruginosa that promotes social motility.
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apreston243.bsky.social @apreston243.bsky.social · 05/09/2025
New Primer alert! And now with the correct link, apologies @dezieleric.bsky.social! Microbial Primer on the essentials of biosurfactants. @microbiologysociety.org www.microbiologyresearch.org/content/jour...
microbiologyresearch.org
Microbial Primer: Biosurfactants – the ABCs of microbial surface-active metabolites
Microbial surfactants (biosurfactants) are low-molecular-weight amphiphilic secondary metabolites synthesized by a wide range of micro-organisms, including bacteria, yeasts and fungi. These compounds ...
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Eric Déziel @dezieleric.bsky.social · 05/09/2025
What to know more about #biosurfactants but do not know where to start? We are publishing a «Primer» on the topic! Great contribution from PhD student Maude Dagenais Roy www.microbiologyresearch.org/content/jour... Thanks to @microbiologysociety.org
microbiologyresearch.org
Microbial Primer: Biosurfactants – the ABCs of microbial surface-active metabolites
Microbial surfactants (biosurfactants) are low-molecular-weight amphiphilic secondary metabolites synthesized by a wide range of micro-organisms, including bacteria, yeasts and fungi. These compounds ...
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Jessica Blair @jessicamablair.bsky.social · 04/09/2025
Assistant Prof post in bacterial genomics @unibirmingham.bsky.social Come and join us!! @imibirmingham.bsky.social www.jobs.ac.uk/job/DOO184/a...
jobs.ac.uk
Assistant Professor (Research and Education) in Bacterial Genomics at University of Birmingham
Looking for a new job opportunity in academia? Check out this job opening for a Assistant Professor (Research and Education) in Bacterial Genomics on jobs.ac.uk!
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STCmicrobeblog @stcmicrobeblog.bsky.social · 21/08/2025
schaechter.asmblog.org/schaechter/2... #MicroSky
schaechter.asmblog.org
Elio (1928-2025)
by The STC Team — Losing a close friend always saddens one deeply, regardless of age. Losing a person who has so immensely influenced our worldview through his guidance and example makes the sadness e...
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STCmicrobeblog @stcmicrobeblog.bsky.social · 11/08/2025
fellow microbiologists take note👇 this is comparable to closing down ATCC. go figure! #MicroSky
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Dr Sian Gramates @drglam.bsky.social · 11/08/2025
I just got the notice that all the FlyBase people at Harvard, including me, will be laid off on October 12. I'm devastated.
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bioRxiv Microbiology @biorxiv-microbiol.bsky.social · 30/07/2025
A family of linear plasmid phages that detect a quorum-sensing autoinducer exists in multiple bacterial species www.biorxiv.org/content/10.1101/202…
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George O'Toole (he/him/his) @geiselbiofilm.bsky.social · 29/07/2025
Pls share: Kenyon College is looking for "a broadly trained microbiologist whose research focuses on prokaryotes." You can see the full ad here: careers.pageuppeople.com/695/cw/en-us...
careers.pageuppeople.com
Kenyon College - Details - Assistant Professor of Biology (Tenure-Track)
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Eric Déziel @dezieleric.bsky.social · 08/07/2025
The 3rd International #Biosurfactants Conference will take place in Aachen, Germany September 8 -10 2025. Academia and industry will discuss the latest developments, and share cutting-edge insight in this exciting field of microbial #biotechnology #microsky biosurfactants.uni-hohenheim.de/en
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Institut Pasteur | 130 years of biomedical research @pasteur.fr · 21/06/2025
🎶 Straight from the Lab to the Mic: when a Pasteur scientist turns her thesis into a rap 🎶 #FeteDeLaMusique
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Eric Déziel @dezieleric.bsky.social · 26/05/2025
Great new resource for Quorum sensing enthusiasts: a database linking LuxI-type synthases to their AHLs journals.asm.org/doi/full/10....
journals.asm.org
RefAHL: a curated quorum sensing reference linking diverse LuxI-type signal synthases with their acyl-homoserine lactone products | Microbiology Resource Announcements
Many bacteria use acyl-homoserine lactone (AHL) signal compounds, produced by the LuxI-family of synthases and detected by the LuxR-family of transcriptional regulators, in cell density-dependent gene...
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Eric Déziel @dezieleric.bsky.social · 18/05/2025
New work from the lab! Sometimes going beyond prototypical strains such as PAO1 or PA14 tells a more complex and nuanced story.
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Cameron Thrash @jcamthrash.bsky.social · 15/05/2025
BONCAT-Live for isolation and cultivation of active environmental bacteria www.biorxiv.org/content/10.1... #jcampubs
biorxiv.org
BONCAT-Live for isolation and cultivation of active environmental bacteria
In diverse environments, microbes drive a myriad of processes, from geochemical and nutrient cycling to interspecies interactions, including in association with plants and animals. Their physiological...
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fillouxlab.bsky.social @fillouxlab.bsky.social · 12/05/2025
A natural compound, echinacoside, controls #c-di-GMP levels in #Pseudomonas aeruginosa via SiaD and is proven effective in combinatorial therapy with tobramycin. No doubt targeting c-di-GMP pathways is a nice path to tackle biofilm and chronic infections. See at www.nature.com/articles/s41...
nature.com
Echinacoside reduces intracellular c-di-GMP levels and potentiates tobramycin activity against Pseudomonas aeruginosa biofilm aggregates - npj Biofilms and Microbiomes
npj Biofilms and Microbiomes - Echinacoside reduces intracellular c-di-GMP levels and potentiates tobramycin activity against Pseudomonas aeruginosa biofilm aggregates
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ASM @asm.org · 12/05/2025
Microbiology Monday: To swim or to swarm? 🦠While c-di-GMP inhibits swimming to promote biofilm formation in E. coli, elevated levels of the secondary message molecule trigger production of a surfactant (colanic acid) that aids swarming. #mBio: asm.social/2pm
Rescue of swarming in ΔdgcO by addition of indicated concentrations of CA extract from ΔwaaF.
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Sebastian S. Cocioba @atinygreencell.bsky.social · 02/05/2025
I got hit by some rather sudden and extreme financial hardship so if anyone is in need of remote wetlab contract research, strictly BSL1, do let me know. Currently scrambling for gigs. Plant, Bacterial, Archaeal Non-model Bioeng Custom Lab Hardware Turn Key Genetic Design Please repost for reach 💚
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Tami Lieberman @contaminatedsci.bsky.social · 01/05/2025
Do people in the same household share strains when they have the same species? How many cells transmit when a strain is shared? Can strain composition be dynamic when species composition is stable? We answer these and related questions for the facial skin microbiome in our latest paper. 🧵[1/10]
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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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Kévin Huguet @kevinhuguet.bsky.social · 24/04/2025
🔬 Ph.D. position in Environmental Microbiology The LCPME is offering a 3-year Ph.D. position to work on the biology of conjugative plasmids carrying antibiotic resistance genes in environmental contexts. This project will combine bacterial genetics, microcosm experiments, and bioinformatic.
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Eduardo Rocha @epcrocha.bsky.social · 16/04/2025
New postdoc position in our lab (2 y+): evolutionary genomics of integrons and MGEs with focus on vibrio-phage interactions. Great environment @pasteur.fr for science, career building. Super collaborators @celineloot.bsky.social @amazeld.bsky.social @fredoleroux.bsky.social 3 weeks to apply!
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Aaron Vogan @fungage-lab.bsky.social · 07/03/2025
We did it! We caught Starship #transposons moving between #fungal species in the lab, including between species separated by ~100my. We think Starships are a mediator of HGT in fungi, akin to conjugative elements in bacteria. Check out the preprint. www.biorxiv.org/content/10.1...
Illustration depicting the ways in which fungi can exchange genetic material with each other. Starship mediated HGT is confirmed experimentally in this preprint.
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Giusy Mariano @giusym1990.bsky.social · 24/01/2025
🚨We are hiring! A MRC-funded PDRA position to study novel anti-phage systems & their evolutionary dynamics in P. aeruginosa, in collaboration with @friendlymicrobe. If you are passionate about phage-bacteria interactions & evolution, apply now ! tinyurl.com/bddz4z44
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Peter Lind @peteralind.bsky.social · 13/03/2025
We have a 2-year postdoc position available in the Lind Lab at Umeå University, Sweden! Predicting and steering experimental evolution of antibiotic resistance in Pseudomonas aeruginosa. Reposts appreciated. umu.varbi.com/en/?jobtoken...
umu.varbi.com
Postdoctor, 2 years, in predicting the evolution of antibiotic resistance
The Department of Molecular Biology seeks a postdoctoral researcher who will work with forecasting and steering experimental evolution of antibiotic resistance. The employment is full-time for two yea
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