Eric Déziel
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dezieleric.bsky.social
Eric Déziel
@dezieleric.bsky.social
580 followers 420 following 19 posts
Microbiologist, professor-investigator at the Armand-Frappier Santé Biotechnologie research center of INRS - Sociomicrobiology, Quorum Sensing, Biosurfactants, Pseudomonas, Burkholderia
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dezieleric.bsky.social
Eric Déziel @dezieleric.bsky.social · Feb 18
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
ajaidandekar.bsky.social
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
emmseveri.bsky.social
www.biorxiv.org/content/10.1...

#microsky
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...
www.biorxiv.org
October 8, 2025 at 7:15 AM
Reposted by Eric Déziel
geiselbiofilm.bsky.social
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
fabricejpierre.bsky.social
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
geiselbiofilm.bsky.social
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
healthlawadamh.bsky.social
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
September 19, 2025 at 1:23 AM
Reposted by Eric Déziel
evolvedbiofilm.bsky.social
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
dezieleric.bsky.social
www.the-scientist.com/lasker-award...
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.
www.the-scientist.com
September 13, 2025 at 5:41 PM
Reposted by Eric Déziel
buhaririinstitute.bsky.social
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
September 8, 2025 at 2:55 PM
Reposted by Eric Déziel
tiffzarrella.bsky.social
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
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...
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 4:14 PM
dezieleric.bsky.social
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
jessicamablair.bsky.social
Assistant Prof post in bacterial genomics @unibirmingham.bsky.social Come and join us!!

@imibirmingham.bsky.social
www.jobs.ac.uk/job/DOO184/a...
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!
www.jobs.ac.uk
September 4, 2025 at 8:22 AM
Reposted by Eric Déziel
stcmicrobeblog.bsky.social
schaechter.asmblog.org/schaechter/2...
#MicroSky
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...
schaechter.asmblog.org
August 21, 2025 at 12:53 PM
Reposted by Eric Déziel
stcmicrobeblog.bsky.social
fellow microbiologists take note👇
this is comparable to closing down ATCC. go figure!
#MicroSky
drglam.bsky.social Dr Sian Gramates @drglam.bsky.social · Aug 11
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
drglam.bsky.social
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
biorxiv-microbiol.bsky.social
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
Reposted by Eric Déziel
geiselbiofilm.bsky.social
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...
Kenyon College - Details - Assistant Professor of Biology (Tenure-Track)
careers.pageuppeople.com
July 29, 2025 at 4:07 PM
dezieleric.bsky.social
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
July 8, 2025 at 5:36 PM
Reposted by Eric Déziel
pasteur.fr
🎶 Straight from the Lab to the Mic: when a Pasteur scientist turns her thesis into a rap 🎶
#FeteDeLaMusique
June 21, 2025 at 3:24 PM
dezieleric.bsky.social
Great new resource for Quorum sensing enthusiasts: a database linking LuxI-type synthases to their AHLs journals.asm.org/doi/full/10....
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...
journals.asm.org
May 26, 2025 at 6:15 PM
dezieleric.bsky.social
New work from the lab! Sometimes going beyond prototypical strains such as PAO1 or PA14 tells a more complex and nuanced story.
biorxiv-microbiol.bsky.social bioRxiv Microbiology @biorxiv-microbiol.bsky.social · May 17
PqsE is conserved and functionally relevant in Pseudomonas aeruginosa https://www.biorxiv.org/content/10.1101/2025.05.16.654539v1
May 18, 2025 at 4:03 AM
Reposted by Eric Déziel
jcamthrash.bsky.social
BONCAT-Live for isolation and cultivation of active environmental bacteria www.biorxiv.org/content/10.1... #jcampubs
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...
www.biorxiv.org
May 15, 2025 at 1:05 PM
Reposted by Eric Déziel
fillouxlab.bsky.social
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...
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
www.nature.com
May 12, 2025 at 5:28 AM
Reposted by Eric Déziel
asm.org
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.
May 12, 2025 at 4:28 PM