Marylise Duperthuy, Université de Montréal

Latest papers

The carRS-ompV-virK operon of Vibrio cholerae senses antimicrobial peptides and activates the expression of multiple resistance systems.
Scientific reports · 2025 · senior author
Elevated concentrations of polymyxin B elicit a biofilm-specific resistance mechanism in Vibrio cholerae.
Research in microbiology · 2024 · senior author
Secretome analysis reveals a role of subinhibitory concentrations of polymyxin B in the survival of Vibrio cholerae mediated by the type VI secretion system.
Environmental microbiology · 2022 · senior author

All 4 publications

Latest funding

A Seahorse analyzer for the multiparametric study of cellular metabolism in prokaryotes and eukaryotes.
NSERC · 2020 · Co-investigator
$150,000
A Dual Rheometer-Microscope Instrument for the Quantitative Characterization of Bacterial Biofilms
NSERC · 2019 · Co-investigator
$150,000
Antimicrobial peptides from the microbiome as modulators of bacterial virulence
NSERC · 2017 · Principal investigator
$182,000

All 3 grants and awards

4 publications.

01

The carRS-ompV-virK operon of Vibrio cholerae senses antimicrobial peptides and activates the expression of multiple resistance systems.

Mathieu-Denoncourt A, Whitfield GB, Vincent AT, Berne C, Pauzé-Foixet J, Mahieddine FC, Brun YV, Duperthuy M

Scientific reports2025Senior author

DOI: 10.1038/s41598-025-98217-3 PMID: 40258937

02

Elevated concentrations of polymyxin B elicit a biofilm-specific resistance mechanism in Vibrio cholerae.

Pauzé-Foixet J, Mathieu-Denoncourt A, Duperthuy M

Research in microbiology2024Senior author

DOI: 10.1016/j.resmic.2023.104179 PMID: 38185395

03

Secretome analysis reveals a role of subinhibitory concentrations of polymyxin B in the survival of Vibrio cholerae mediated by the type VI secretion system.

Mathieu-Denoncourt A, Duperthuy M

Environmental microbiology2022Senior author

DOI: 10.1111/1462-2920.15762 PMID: 34490971

04

Ecotin and LamB in Escherichia coli influence the susceptibility to Type VI secretion-mediated interbacterial competition and killing by Vibrio cholerae.

Myint SL, Zlatkov N, Aung KM, Toh E, Sjöström A, Nadeem A, Duperthuy M, Uhlin BE, Wai SN

Biochimica et biophysica acta. General subjects2021

DOI: 10.1016/j.bbagen.2021.129912 PMID: 33892013

A Seahorse analyzer for the multiparametric study of cellular metabolism in prokaryotes and eukaryotes.

Co-investigatorNSERC2020Research Tools and Instruments

Principal investigators: Thibodeau, Jacques

$150,000

A Dual Rheometer-Microscope Instrument for the Quantitative Characterization of Bacterial Biofilms

Co-investigatorNSERC2019Research Tools and Instruments

Principal investigators: Virgilio, Nick

$150,000

Antimicrobial peptides from the microbiome as modulators of bacterial virulence

Principal investigatorNSERC2017Discovery Grants Program - Individual

Principal investigators: Duperthuy, Marylise

$182,000

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

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Subject: Prospective PhD student Dear Professor Duperthuy, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "The carRS-ompV-virK operon of Vibrio cholerae senses antimicrobial peptides and activates the expression of multiple resistance systems." (2025), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]