Virgile Guéneau
- Lallemand SAS
- MICrobiologie de l'ALImentation au Service de la Santé (MICALIS)
Présentation
Instead of eliminating biofilms, couldn't we take advantage of them? I am currently conducting research on the concept of positive biofilms as part of a scientific collaboration between Lallemand Animal Nutrition company and the Micalis Institute. The objective of this partnership is to develop microbial solutions aimed at modulating the microbial ecology of surfaces by applying beneficial bacterial consortia selected in the laboratory according to specific criteria. These beneficial bacteria develop on surfaces in the form of a positive biofilm, limiting the colonization of undesirable bacteria, such as pathogens or spoilage microorganisms. In practice, I study the synergistic interactions between different beneficial bacteria and decipher the mechanisms involved in their antagonistic effects against undesirable bacteria in multi-species biofilm models. The results obtained directly contribute to understanding the modes of action of positive biofilms and to the development of next-generation products.
Compétences
Publications
Publications
Microbial biofilms: when spatial organisation transforms microbial behaviourRencontres Mathématiques de Rouen, Université de Rouen, UFR Sciences et Techniques, Technopôle du Madrillet, Jun 2026, Rouen, France |
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Biofilms: Survival by DesignUPorto Research Summer School in Microbial Communities: Taste of PhD Experience, University of Porto, Portugal, Jul 2026, Porto, Portugal |
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Biofilms microbiens : quand l’organisation spatiale transforme le comportement des microbesRencontres Mathématiques de Rouen, Université de Rouen, Jun 2026, Rouen, France |
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3D Imaging-Guided Design of Beneficial Surface BiofilmsInternational Conference in Bioengineering, SRP Institute of Science Technology, Mar 2026, Chennai (India), India |
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The architecture of microbial societies: spatiality, cooperation and the emergence of biofilmsUPorto Research Summer School in Microbial Communities, University of Porto (Portugal), Jul 2025, Porto (Portugal), Portugal |
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Bottom-up assembly of beneficial multi-species biofilms targeting undesirable bacteria using 3D fluorescence imagingXXX Congreso Sociedad Espanola de Microbiologia, SEM, Jun 2025, Jaen, Spain |
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Live fluorescence confocal imaging to study microbial interaction in multi-species biofilmsJournée annuelle France BioImaging IDF Sud, France BioImaging, Jun 2025, Jouy-en-Josas, France |
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IMPACT DU RÉSISTOME ET DU MOBILOME SUR LA FORMATION DES BIOFILMS DE VIBRIO PARAHAEMOLYTICUSMICROBES 2025, Société française de microbiologie, Sep 2025, Bordeaux, France |
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Illuminating the biofilm lifecycle: imaging and molecular insights with Bacillus subtilis and related speciesBiofilms environnementaux : avancées scientifiques et applications, SFM, May 2024, Invited Webinar, France |
Towards the rational use of positive biofilms to aid in the management of undesirable microorganisms in livestock buildingsSéminaire invité du Département de Microbiologie de l'I2BC, Institut de biologie intégrative de la cellule (I2BC), Mar 2024, Gif-sur-Yvette, France |
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Guided assembly of multispecies positive biofilms targeting undesirable bacteriaRNB 2024 -10e Colloque du Réseau National Biofilms, Réseau National Biofilms, Nov 2024, Toulouse, France |
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Unlocking the potential of biofilm properties in beneficial microbes for one health advancementsAsia-Pacific Biofilms 2024, Nov 2024, Guangzhou, China |
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Guided assembly of positive biofilms targeting pathogenic bacteria using live-cell imagingBacell, Nov 2023, Kobe, Japan |
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Guided assembly of positive biofilms targeting pathogenic bacteria using live-cell imagingBactéries sporulantes pathogènes ou d’intérêt technologique, SFM, Nov 2023, Paris, France |
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3D-fluorescent imaging to decipher the mechanisms of pathogens exclusion by positive biofilm in livestock buildingABIES Doctoral Days 2022, Apr 2022, Paris, France |
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Positive biofilms to guide surface microbial ecology in livestock buildingsISME18, Aug 2022, Lausanne, Switzerland |
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High Content Screening Confocal Laser Scanning Microscopy (HCS-CLSM) to decipher the mechanisms of bacterial pathogens exclusion by positive biofilms.PhyChemCell2022, Oct 2022, Saclay, France |
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Positive biofilms to guide surface microbial ecologyInternational Association for Food Protection (IAFP), May 2022, Munich, Germany |
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Assessment of a microbial external inoculation in a broiler chicken production building post disinfection and prior animal entrance on environmental biofilm using 16S rRNA analysisBeneficial Microbes, 2021, Montreal, Canada |
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Microbials solutions to reinforce on-farm biosecurityLallemand webinars, 2021, Digital edition, France |
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Effets de la pulvérisation d’un inoculant bactérien en maternité sur les performances des truies et des porcelets57es Journées de la recherche porcine (JRP), Feb 2025, Saint-Malo (FR), France. Ifip, Journées de la recherche porcine en France, 57, 2025, 57es Journées de la recherche porcine |
Design of antagonistic biofilm communities for pathogen exclusionASM Biofilms, Nov 2025, Portland (OR), United States. 2025 |
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The concept of positive biofilm in the context of livestock building surfacesSymposium "Environment and Host Microbiomes - Functional Interactions", May 2023, Saclay, France |
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Emergent properties of a multi-species positive biofilm : structural and chemical analysis of the extracellular matrix.PhyChemCell2022, Oct 2022, Saclay, France |
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High Content Screening Confocal Laser Scanning Microscopy (HCS-CLSM) to decipher the mechanisms of bacterial pathogens exclusion by positive biofilmsEMBO Workshop Adherent microbial communities: Quantitative approaches from single cell to ecosystems, Oct 2022, Cargèse, France |
Spatial analysis of multispecies bacterial biofilmsMIM 53: Biofilms, Elsevier, 2023, Methods in Microbiology, ⟨10.1016/bs.mim.2023.03.002⟩ |
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Vers l'utilisation rationnelle de biofilms positifs pour aider à maîtriser les microorganismes indésirables dans les bâtiments d'élevageBiotechnologie. Université Paris-Saclay, 2023. Français. ⟨NNT : 2023UPASB057⟩ |