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HIGH SCHOOL

Biology

Concept Videos

Microbiology

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Microbial Growth

Biofilm Growth and Surface Attachment

Description

Biofilms are communities of microorganisms that attach to a surface and build a self-made sticky matrix around themselves. This matrix is made of extracellular polysaccharides, which are sugar-based substances secreted by the cells. Biofilms may contain one species or several species, and their organized layers help the micr...

Transcript

A biofilm is a microbial consortium embedded in a self-produced polysaccharide matrix attached to a surface.

Biofilm formation occurs in four stages — attachment, colonization, development, and dispersal.

During attachment, planktonic cells adhere to a surface.

In colonization, cells produce extracellular polysaccharides, formi...

Tags

Quorum SensingExtracellular PolysaccharideBacterial AttachmentSurface ColonizationBiofilm FormationAntibiotic ResistancePseudomonas AeruginosaStreptococcus MutansLactoferrin

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