Marie Christine Groleau
@mariecg.bsky.social
Reposted by Marie Christine Groleau
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/...
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
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/...
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/...
Reposted by Marie Christine Groleau
Reposted by Marie Christine Groleau
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...
Partagez! @micrhub.bsky.social
event.fourwaves.com/bispmicrhubs...
BiSP - MicrHub
Fourwaves - BiSP - MicrHub
event.fourwaves.com
September 30, 2025 at 3:11 PM
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...
Partagez! @micrhub.bsky.social
event.fourwaves.com/bispmicrhubs...
Reposted by Marie Christine Groleau
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
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
Reposted by Marie Christine Groleau
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
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
Reposted by Marie Christine Groleau
🌿Un projet scientifique innovant au Carré Laval
L'INRS, @villedelavalqc.bsky.social, @genomequebec.bsky.social @fondsrechercheqc.bsky.social annoncent le lancement d'un projet unique sur le #microbiome urbain et son impact sur la santé globale. #recherche
En savoir plus 👉 inrs.ca/actualites/l...
L'INRS, @villedelavalqc.bsky.social, @genomequebec.bsky.social @fondsrechercheqc.bsky.social annoncent le lancement d'un projet unique sur le #microbiome urbain et son impact sur la santé globale. #recherche
En savoir plus 👉 inrs.ca/actualites/l...
June 12, 2025 at 1:47 PM
🌿Un projet scientifique innovant au Carré Laval
L'INRS, @villedelavalqc.bsky.social, @genomequebec.bsky.social @fondsrechercheqc.bsky.social annoncent le lancement d'un projet unique sur le #microbiome urbain et son impact sur la santé globale. #recherche
En savoir plus 👉 inrs.ca/actualites/l...
L'INRS, @villedelavalqc.bsky.social, @genomequebec.bsky.social @fondsrechercheqc.bsky.social annoncent le lancement d'un projet unique sur le #microbiome urbain et son impact sur la santé globale. #recherche
En savoir plus 👉 inrs.ca/actualites/l...
Reposted by Marie Christine Groleau
Our new big review on Pseudomonas aeruginosa. Hope you enjoy reading it. www.nature.com/articles/s41...
Pseudomonas aeruginosa: ecology, evolution, pathogenesis and antimicrobial susceptibility - Nature Reviews Microbiology
Pseudomonas aeruginosa is a functionally versatile bacterium, a leading opportunistic human pathogen and a model organism in microbiology. In this Review, Letizia, Diggle and Whiteley discuss P. aerug...
www.nature.com
May 29, 2025 at 1:18 PM
Our new big review on Pseudomonas aeruginosa. Hope you enjoy reading it. www.nature.com/articles/s41...
Reposted by Marie Christine Groleau
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
Great new resource for Quorum sensing enthusiasts: a database linking LuxI-type synthases to their AHLs journals.asm.org/doi/full/10....
Reposted by Marie Christine Groleau
New work from the lab! Sometimes going beyond prototypical strains such as PAO1 or PA14 tells a more complex and nuanced story.
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
New work from the lab! Sometimes going beyond prototypical strains such as PAO1 or PA14 tells a more complex and nuanced story.
Reposted by Marie Christine Groleau
PqsE is conserved and functionally relevant in Pseudomonas aeruginosa https://www.biorxiv.org/content/10.1101/2025.05.16.654539v1
May 17, 2025 at 2:17 PM
PqsE is conserved and functionally relevant in Pseudomonas aeruginosa https://www.biorxiv.org/content/10.1101/2025.05.16.654539v1
Reposted by Marie Christine Groleau
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 💚
Plant, Bacterial, Archaeal Non-model Bioeng
Custom Lab Hardware
Turn Key Genetic Design
Please repost for reach 💚
May 2, 2025 at 2:39 PM
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 💚
Plant, Bacterial, Archaeal Non-model Bioeng
Custom Lab Hardware
Turn Key Genetic Design
Please repost for reach 💚
Reposted by Marie Christine Groleau
Conference on ‘Cell-Cell Communication in Bacteria: New Insights and Future Trends’, taking place from 28–30 October 2025 in Trieste, Italy. Registration and abstract submission now open www.icgeb.org/cell-cell-co...
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
April 30, 2025 at 5:16 PM
Conference on ‘Cell-Cell Communication in Bacteria: New Insights and Future Trends’, taking place from 28–30 October 2025 in Trieste, Italy. Registration and abstract submission now open www.icgeb.org/cell-cell-co...
Reposted by Marie Christine Groleau
Reposted by Marie Christine Groleau
Au total, les professeurs Eric Déziel et Étienne Yergeau reçoivent un soutien financier de 2,8 M$ du Programme des chaires de recherche du Canada qui appuie des chercheuses et chercheurs parmi les plus prometteurs et les plus accomplis au monde.
inrs.ca/actualites/d...
inrs.ca/actualites/d...
Deux nouvelles chaires de recherche en microbiologie à l’INRS
Deux nouvelles chaires de recherche du Canada pour étudier les interactions microbiennes et leur impact sur la santé et l’environnement.
inrs.ca
April 15, 2025 at 5:28 PM
Au total, les professeurs Eric Déziel et Étienne Yergeau reçoivent un soutien financier de 2,8 M$ du Programme des chaires de recherche du Canada qui appuie des chercheuses et chercheurs parmi les plus prometteurs et les plus accomplis au monde.
inrs.ca/actualites/d...
inrs.ca/actualites/d...
Reposted by Marie Christine Groleau
Colony morphotype variation in Burkholderia: implications for success of applications and therapeutics
#JBacteriol by @pmlcoulon.bsky.social et al
journals.asm.org/doi/10.1128/...
#JBacteriol by @pmlcoulon.bsky.social et al
journals.asm.org/doi/10.1128/...
Colony morphotype variation in Burkholderia: implications for success of applications and therapeutics | Journal of Bacteriology
The Burkholderia genus, comprising over 90 species (1, 2), is a member of the β-proteobacteria subphylum and is widely distributed in various
environments such as the atmosphere, soil, water, plant rh...
journals.asm.org
April 14, 2025 at 6:03 PM
Colony morphotype variation in Burkholderia: implications for success of applications and therapeutics
#JBacteriol by @pmlcoulon.bsky.social et al
journals.asm.org/doi/10.1128/...
#JBacteriol by @pmlcoulon.bsky.social et al
journals.asm.org/doi/10.1128/...
Reposted by Marie Christine Groleau
Réservez les dates! Le BiSP (bactériologie intégrative, symbiose et pathogénèse) aura lieu le 5 et 6 novembre à l'Université de Sherbrooke - un événement qui sera en "symbiose" avec le MicrHub, rencontre annuelle de tous les microbiologistes de Sherbrooke. À ne pas manquer!
April 8, 2025 at 7:43 PM
Réservez les dates! Le BiSP (bactériologie intégrative, symbiose et pathogénèse) aura lieu le 5 et 6 novembre à l'Université de Sherbrooke - un événement qui sera en "symbiose" avec le MicrHub, rencontre annuelle de tous les microbiologistes de Sherbrooke. À ne pas manquer!
Reposted by Marie Christine Groleau
New in JB: Coulon, Deziel, et al. explore quorum sensing and DNA methylation in phase variation in Burkholderia clinical isolates.
journals.asm.org/doi/10.1128/...
@asm.org #JBacteriology
journals.asm.org/doi/10.1128/...
@asm.org #JBacteriology
April 2, 2025 at 2:06 PM
New in JB: Coulon, Deziel, et al. explore quorum sensing and DNA methylation in phase variation in Burkholderia clinical isolates.
journals.asm.org/doi/10.1128/...
@asm.org #JBacteriology
journals.asm.org/doi/10.1128/...
@asm.org #JBacteriology
Reposted by Marie Christine Groleau
Le professeur Éric Déziel fait figure de pionnier dans l’étude des #biosurfactants. Avec son équipe, il a mis au point une méthode innovante d'évolution dirigée, inspirée de la sélection naturelle, pour améliorer leur production et rendre leur utilisation plus accessible.
inrs.ca/actualites/l...
inrs.ca/actualites/l...
La sélection naturelle au service de produits nettoyants plus écologiques ?
Une étude de l'INRS sur la sélection naturelle ouvre la voie à des avancées très prometteuses dans le secteur des biosurfactants
inrs.ca
April 2, 2025 at 1:12 PM
Le professeur Éric Déziel fait figure de pionnier dans l’étude des #biosurfactants. Avec son équipe, il a mis au point une méthode innovante d'évolution dirigée, inspirée de la sélection naturelle, pour améliorer leur production et rendre leur utilisation plus accessible.
inrs.ca/actualites/l...
inrs.ca/actualites/l...
Reposted by Marie Christine Groleau
Le groupe de Biologie Moléculaire du Département de Biologie recrute!
Une 4e embauche en 2 ans, joignez-vous à une équipe jeune, à un département dynamique, au sein d'une institution exceptionnelle, dans un pays démocratique.
www.usherbrooke.ca/emplois/offr...
Une 4e embauche en 2 ans, joignez-vous à une équipe jeune, à un département dynamique, au sein d'une institution exceptionnelle, dans un pays démocratique.
www.usherbrooke.ca/emplois/offr...
March 31, 2025 at 12:48 PM
Le groupe de Biologie Moléculaire du Département de Biologie recrute!
Une 4e embauche en 2 ans, joignez-vous à une équipe jeune, à un département dynamique, au sein d'une institution exceptionnelle, dans un pays démocratique.
www.usherbrooke.ca/emplois/offr...
Une 4e embauche en 2 ans, joignez-vous à une équipe jeune, à un département dynamique, au sein d'une institution exceptionnelle, dans un pays démocratique.
www.usherbrooke.ca/emplois/offr...
Reposted by Marie Christine Groleau
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
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
February 18, 2025 at 3:25 PM
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
Some abstracts will be selected for oral presentations. #quorum-sensing
Reposted by Marie Christine Groleau
A new line of research in the lab over recent years! We start with a review article, by postdoc Nasim Sedighian as lead author - Ecofriendly Control Strategies Against Clavibacter michiganensis, the Causal Agent of Bacterial Canker of Tomato | Plant Disease apsjournals.apsnet.org/doi/10.1094/...
Ecofriendly Control Strategies Against Clavibacter michiganensis, the Causal Agent of Bacterial Canker of Tomato | Plant Disease
Bacterial canker of tomato, caused by the pathogenic Gram-positive bacterium Clavibacter michiganensis, represents a serious threat to tomato growers worldwide. Diverse approaches have been reported t...
apsjournals.apsnet.org
February 17, 2025 at 7:09 PM
A new line of research in the lab over recent years! We start with a review article, by postdoc Nasim Sedighian as lead author - Ecofriendly Control Strategies Against Clavibacter michiganensis, the Causal Agent of Bacterial Canker of Tomato | Plant Disease apsjournals.apsnet.org/doi/10.1094/...
Reposted by Marie Christine Groleau
New paper out! Phenotypic variation is a feature of several Burkholderia species. We found that quorum sensing and adenosine DNA methylation are two antagonistic systems independently controlling phase variation in B. ambifaria. Great work by @pmlcoulon.bsky.social journals.asm.org/doi/10.1128/...
Quorum sensing and DNA methylation play active roles in clinical Burkholderia phase variation | Journal of Bacteriology
Some Burkholderia species are pathogenic to plants, animals, or humans. In immunocompromised individuals,
and people suffering from cystic fibrosis, infection from the Burkholderia cepacia complex (Bc...
journals.asm.org
February 17, 2025 at 5:57 PM
New paper out! Phenotypic variation is a feature of several Burkholderia species. We found that quorum sensing and adenosine DNA methylation are two antagonistic systems independently controlling phase variation in B. ambifaria. Great work by @pmlcoulon.bsky.social journals.asm.org/doi/10.1128/...
Reposted by Marie Christine Groleau
Excited to share this article with the community! Many thanks to @dezieleric.bsky.social for allowing me to start this work during my PhD and for his continued support. I also appreciate @mariecg.bsky.social for her amazing contribution and constant support!
New paper out! Phenotypic variation is a feature of several Burkholderia species. We found that quorum sensing and adenosine DNA methylation are two antagonistic systems independently controlling phase variation in B. ambifaria. Great work by @pmlcoulon.bsky.social journals.asm.org/doi/10.1128/...
Quorum sensing and DNA methylation play active roles in clinical Burkholderia phase variation | Journal of Bacteriology
Some Burkholderia species are pathogenic to plants, animals, or humans. In immunocompromised individuals,
and people suffering from cystic fibrosis, infection from the Burkholderia cepacia complex (Bc...
journals.asm.org
February 17, 2025 at 8:06 PM
Excited to share this article with the community! Many thanks to @dezieleric.bsky.social for allowing me to start this work during my PhD and for his continued support. I also appreciate @mariecg.bsky.social for her amazing contribution and constant support!
New paper on line from the Déziel lab. "Surface growth of Pseudomonas aeruginosa reveals a regulatory effect of 3-oxo-C12-homoserine lactone in the absence of its cognate receptor, LasR" journals.asm.org/doi/10.1128/... Check it out !
September 21, 2023 at 1:27 PM
New paper on line from the Déziel lab. "Surface growth of Pseudomonas aeruginosa reveals a regulatory effect of 3-oxo-C12-homoserine lactone in the absence of its cognate receptor, LasR" journals.asm.org/doi/10.1128/... Check it out !