13 August 2026, 11:00
Thriving and Surviving in the Biofilm Fortress: From biofilm biology to collaborative research at EMBL
Description Far from existing as isolated cells bacteria commonly form structured surface associated communities known as biofilms in which cells are embedded within a self produced extracellular matrix ECM that mediates adhesion between cells and surfaces This community based lifestyle enables bacteria to colonize diverse environments ranging from living tissues to abiotic surfaces In clinical settings biofilm formation by pathogenic bacteria represents a major challenge as cells within these communities display remarkable tolerance to conventional antimicrobial therapies In this seminar I will present our work using Escherichia coli as a model system to investigate how bacteria coordinate growth physiological specialization and extracellular matrix production to build complex three dimensional biofilm structures I will discuss how these spatially structured communities reorganize their physiology and matrix composition in response to both sublethal and lethal antibiotic exposure Finally I will present our collaborative work at EMBL aimed at extending these studies toward a deeper understanding of how spatial microenvironments and physiological heterogeneity shape cell fate during antibiotic challenge... Far from existing as isolated cells, bacteria commonly form structured surface-associated communities known as biofilms, in which cells are embedded within a self-produced extracellular matrix (ECM) that mediates adhesion between cells and surfaces. This community-based lifestyle enables bacteria to colonize diverse environments, ranging from living tissues to abiotic surfaces. In clinical settings, biofilm formation by pathogenic bacteria represents a major challenge, as cells within these communities display remarkable tolerance to conventional antimicrobial therapies.In this seminar, I will present our work using Escherichia coli as a model system to investigate how bacteria coordinate growth, physiological specialization, and extracellular matrix production to build complex three-dimensional biofilm structures. I will discuss how these spatially structured communities reorganize...
Speaker(s): Argentina, Institute of Molecular and Cell Biology of Rosario (IBR, CONICET), Rosario, Argentina, Diego Omar Serra
Host: Nassos Typas, EMBL Heidelberg, Germany
Place: Large Operon
EMBL Heidelberg
Additional information
Far from existing as isolated cells, bacteria commonly form structured surface-associated communities known as biofilms, in which cells are embedded within a self-produced extracellular matrix (ECM) that mediates adhesion between cells and surfaces. This community-based lifestyle enables bacteria to colonize diverse environments, ranging from living tissues to abiotic surfaces. In clinical settings, biofilm formation by pathogenic bacteria represents a major challenge, as cells within these communities display remarkable tolerance to conventional antimicrobial therapies.
In this seminar, I will present our work using Escherichia coli as a model system to investigate how bacteria coordinate growth, physiological specialization, and extracellular matrix production to build complex three-dimensional biofilm structures. I will discuss how these spatially structured communities reorganize their physiology and matrix composition in response to both sublethal and lethal antibiotic exposure. Finally, I will present our collaborative work at EMBL aimed at extending these studies toward a deeper understanding of how spatial microenvironments and physiological heterogeneity shape cell fate during antibiotic challenge.