Laboratoire MAPIEM (EA 4323)

Matériaux Polymères Interfaces Environnement Marin

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Characterizing the biofilm and biofouling of artificial substrates : better understanding biofilm formation under various environmental conditions

COURT Mélissa
Biofilms & Antifouling - Microbial & Chemical Ecology of marine Biofilms (MCEB)

Supervisors: BRIAND Jean-François, LETERME Sophie, ANDERSON Mats

Biofilm formation follows a sequence of chemical and biological events, from the surface conditioning to the colonization by pioneer microorganisms, the recruitment and growth of colonies of secondary colonizers, to the development and maturation of the biofilm scaffold. This sequence of events relies upon chemical and biological interactions that facilitate the adhesion to surfaces and dictate the physiochemical properties of the biofilm. The settlement of the very first colonies (microfouling) of microorganisms is the origin of a slow and steady growth of a biofilm and the settlement of macroorganisms (macrofouling), which can have severe consequences for the marine industry and the environment. Here, we want to better understand biofilm formation, including early settlement: Who are the early settlers? How do they contribute to the conditioning of the surface? What are the role of the enzymes, proteins secreted by these organisms?

Characterizing the biofilm and biofouling of artificial substrates : better understanding biofilm formation under various environmental conditions

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