Chapter 11 : Bacterial Extracellular Polysaccharides in Biofilm Formation and Function

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The ability to construct and maintain a structured multicellular bacterial community depends critically on the production of extracellular matrix components ( ). While the biofilm matrix may be composed of various molecules, the focus of this chapter is on the extracellular polysaccharides (PSs) important for biofilm formation.

Citation: Limoli D, Jones C, Wozniak D. 2015. Bacterial Extracellular Polysaccharides in Biofilm Formation and Function, p 223-247. In Ghannoum M, Parsek M, Whiteley M, Mukherjee P (ed), Microbial Biofilms, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.MB-0011-2014
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Figure 1

Adapted representative chemical structures of polysaccharides which participate in biofilm formation including (A) polysaccharide intercellular adhesin (PIA), (B) Psl, (C) alginate, capsular polysaccharide (CPS) from (Di) and (Dii) , (E) levan, (F) cellulose, and (G) colanic acid. Brackets depict repeating units.

Citation: Limoli D, Jones C, Wozniak D. 2015. Bacterial Extracellular Polysaccharides in Biofilm Formation and Function, p 223-247. In Ghannoum M, Parsek M, Whiteley M, Mukherjee P (ed), Microbial Biofilms, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.MB-0011-2014
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Figure 2

Colony phenotypes conferred upon expression or overexpression of PS by representative bacteria. (A) PS intercellular adhesion producing . Reprinted from ( ) with permission from the publisher. (B) Pel producing Δ). Reprinted from ( ) with permission from the publisher. (C) Psl producing Δ). Reprinted from ( ) with permission from the publisher. (D) Alginate overproducing (). Not previously published. Credit: Daniel Wozniak. (E) Colanic acid producing . Reprinted from ( ) with permission from the publisher. (F) VPS producing rugose variant of . Reprinted from ( ) with permission from the publisher. (G) EPS producing . Reprinted from ( ) with permission from the publisher. (H) Cellulose producing (). Reprinted from ( ) with permission from the publisher.

Citation: Limoli D, Jones C, Wozniak D. 2015. Bacterial Extracellular Polysaccharides in Biofilm Formation and Function, p 223-247. In Ghannoum M, Parsek M, Whiteley M, Mukherjee P (ed), Microbial Biofilms, Second Edition. ASM Press, Washington, DC. doi: 10.1128/microbiolspec.MB-0011-2014
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