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Hdr Année : 2018

Biofilms, tapis et agrégats microbiens : vers une vision unificatrice

Résumé

The complexity of the mechanisms underlying the fixation and installation of microorganisms on a given surface, or substrate, is such that it is often impossible to predict which community will develop. The nature of the substrates, the physico-chemical environment, the surface roughness, seasonal fluctuations and various anthropogenic forcings all determine the interactions and make each biofilm unique. However, this uniqueness is only apparent. Whatever the complexity of the biofilm considered, its general structure will be invariable and will contain a certain number of elements of similarity with, in foreground, the secretion of extracellular polymers. These secretions support a number important ecosystem functions and services that are common to all microbial communities. My research aims to answer fundamental questions about the determinism of the fixation of microorganisms, their development and their roles in the functioning of ecosystems. This document summarises my research on microbial biofilms, mats and aggregates and attempts to build a unifying vision of these diverse communities.

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tel-04002009 , version 1 (23-02-2023)

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Paternité - Pas d'utilisation commerciale - Partage selon les Conditions Initiales

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Cédric Hubas. Biofilms, tapis et agrégats microbiens : vers une vision unificatrice. Microbiologie et Parasitologie. Muséum National d'Histoire Naturelle, 2018. ⟨tel-04002009⟩
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