Biofilm Formation


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Biofilm Formation

Biofilm Formation

This is an SEM micrograph showing the formation of a biofilm by a colony of Cocci type bacteria. The three bacteria on the right portion of the micrograph show the earliest stage of biofilm formation. Two have adhered to each other, and one has become affixed to the substrate. As you scan to the left, the biofilm formation becomes more pronounced. The four bacteria near the center of the micrograph are clearly connected by an adhesive matrix. It can also be seen in this area that a layer of this adhesive matrix is forming on the substrate. Even further left, the biofilm becomes more fully developed, with the bacteria completely encased in the adhesive matrix. This adhesive matrix if formed from excretions from the bacteria. The lower left region shows a very thick "glob" of bacteria encased in a well formed biofilm.

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