Biofilms and Corrosion
Bacteria grow preferentially in biofilms. This mode of growth allows these organisms to set up highly structured, physiologically cooperative communities because they remain in stable juxtaposition to the colonized surface and to each other. Planctonic bacteria cannot establish these highly organized consortia. As a consequence, the focused bacterial biodeterioration of insoluble substrates and microbially influenced corrosion of metals are both dependant on biofilm formation. Furthermore, the biodeterioration of complex soluble organic substrates requires more than one species of bacteria; biofilm formation is therefore also a sine qua non in these processes. We must understand biofilms if we are to understand and control biodeterioration.
KeywordsHydrogen Sulfide Iron Sulfide Cooperative Community Sodium Sulfite Ferrous Sulfide
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