Eric Déziel
dezieleric.bsky.social
Eric Déziel
@dezieleric.bsky.social
Microbiologist, professor-investigator at the Armand-Frappier Santé Biotechnologie research center of INRS - Sociomicrobiology, Quorum Sensing, Biosurfactants, Pseudomonas, Burkholderia
Pinned
The International Workshop on ‘Cell-cell communication in bacteria’ (CCCB25) to be held in Trieste, Italy, October 28-30 2025 is now open for abstract submission and registration www.icgeb.org/cell-cell-co...
Some abstracts will be selected for oral presentations. #quorum-sensing
Arturo Falaschi Conference “Cell-cell communication in bacteria: new insights and future trends”
Trieste, Italy 28 – 30 October 2025 – CALL FOR APPLICATIONS AND REGISTRATIONS NOW OPEN
www.icgeb.org
Reposted by Eric Déziel
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....
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...
www.tandfonline.com
January 29, 2026 at 12:14 AM
Reposted by Eric Déziel
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/...
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...
journals.asm.org
January 28, 2026 at 7:02 PM
Reposted by Eric Déziel
🚨 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...
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...
research.pasteur.fr
January 28, 2026 at 11:19 AM
Reposted by Eric Déziel
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...
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.
www.jobs.manchester.ac.uk
December 20, 2025 at 12:21 PM
Reposted by Eric Déziel
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/...
December 15, 2025 at 4:10 PM
Reposted by Eric Déziel
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 [email protected]. Thanks!
December 4, 2025 at 5:12 PM
Reposted by Eric Déziel
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 📚▶️ https://ow.ly/RCNQ50XulOF

#ScienceJobs #NowHiring
November 24, 2025 at 5:05 PM
Reposted by Eric Déziel
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/...
November 12, 2025 at 9:57 AM
Reposted by Eric Déziel
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/...
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...
journals.asm.org
October 23, 2025 at 5:52 PM
Reposted by Eric Déziel
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
October 3, 2025 at 2:04 PM
Reposted by Eric Déziel
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...
BiSP - MicrHub
Fourwaves - BiSP - MicrHub
event.fourwaves.com
September 30, 2025 at 3:11 PM
Reposted by Eric Déziel
Please share - an Assist Prof position in microbiology

employmentopportunities.umb.edu/mob/cw/en-us...

@asm.org
September 30, 2025 at 12:04 AM
Reposted by Eric Déziel
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...
September 19, 2025 at 1:23 AM
Reposted by Eric Déziel
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...
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...
link.springer.com
September 18, 2025 at 11:12 AM
Reposted by Eric Déziel
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
September 8, 2025 at 2:55 PM
Reposted by Eric Déziel
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...
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.
www.nature.com
September 6, 2025 at 8:33 AM
Reposted by Eric Déziel
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
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 ...
www.microbiologyresearch.org
September 5, 2025 at 3:37 PM
Reposted by Eric Déziel
fellow microbiologists take note👇
this is comparable to closing down ATCC. go figure!
#MicroSky
I just got the notice that all the FlyBase people at Harvard, including me, will be laid off on October 12. I'm devastated.
August 11, 2025 at 10:41 PM
Reposted by Eric Déziel
I just got the notice that all the FlyBase people at Harvard, including me, will be laid off on October 12. I'm devastated.
August 11, 2025 at 6:12 PM
Reposted by Eric Déziel
A family of linear plasmid phages that detect a quorum-sensing autoinducer exists in multiple bacterial species https://www.biorxiv.org/content/10.1101/2025.07.30.667625v1
July 30, 2025 at 10:16 PM