Self-Adaptation of Pseudomonas Fluorescens Biofilms to Hydrodynamic Stress
Ikusi/ Ireki
Data
2021-01-12Egilea
Jara, Josue
Alarcón, Francisco
Monnappa, Ajay K.
Santos González, José Ignacio
Bianco, Valentino
Nie, Pin
Pica Ciamarra, Massimo
Canales, Ángeles
Dinis, Luis
López Montero, Iván
Valeriani, Chantal
Orgaz, Belén
Frontiers In Microbiology 11 : (2021) // Article ID 588884
Laburpena
In some conditions, bacteria self-organize into biofilms, supracellular structures made of a self-produced embedding matrix, mainly composed of polysaccharides, DNA, proteins, and lipids. It is known that bacteria change their colony/matrix ratio in the presence of external stimuli such as hydrodynamic stress. However, little is still known about the molecular mechanisms driving this self-adaptation. In this work, we monitor structural features of Pseudomonas fluorescens biofilms grown with and without hydrodynamic stress. Our measurements show that the hydrodynamic stress concomitantly increases the cell density population and the matrix production.