Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
, 15 (3), 162-8

Pseudomonas Aeruginosa Biofilms: Role of the Alginate Exopolysaccharide

Affiliations
Review

Pseudomonas Aeruginosa Biofilms: Role of the Alginate Exopolysaccharide

A Boyd et al. J Ind Microbiol.

Abstract

Pseudomonas aeruginosa synthesizes an exopolysaccharide called alginate in response to environmental conditions. Alginate serves to protect the bacteria from adversity in its surroundings and also enhances adhesion to solid surfaces. Transcription of the alginate biosynthetic genes is induced upon attachment to the substratum and this leads to increased alginate production. As a result, biofilms develop which are advantageous to the survival and growth of the bacteria. In certain circumstances, P. aeruginosa produces an alginate lyase enzyme which cleaves the polymer into short oligosaccharides. This negates the anchoring properties of the alginate and results in increased detachment of the bacteria away from the surface, allowing them to spread and colonize new sites. Thus, both alginate biosynthetic and degradative enzymes are important for the development, maintenance and spread of P. aeruginosa biofilms.

Similar articles

See all similar articles

Cited by 30 articles

See all "Cited by" articles

References

    1. Appl Environ Microbiol. 1990 Dec;56(12):3693-8 - PubMed
    1. Appl Environ Microbiol. 1983 Nov;46(5):978-84 - PubMed
    1. Mol Plant Microbe Interact. 1990 Sep-Oct;3(5):271-9 - PubMed
    1. Appl Environ Microbiol. 1995 Feb;61(2):513-7 - PubMed
    1. Gene. 1993 Sep 6;131(1):1-8 - PubMed

Publication types

MeSH terms

LinkOut - more resources

Feedback