Regulation of biofilm formation in Pseudomonas and Burkholderia species
In the present review, we describe and compare the molecular mechanisms that are involved in the regulation of biofilm formation by Pseudomonas putida, Pseudomonas fluorescens, Pseudomonas aeruginosa and Burkholderia cenocepacia. Our current knowledge suggests that biofilm formation is regulated by...
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Published in | Environmental microbiology Vol. 16; no. 7; pp. 1961 - 1981 |
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Main Authors | , , , , , |
Format | Journal Article |
Language | English |
Published |
Oxford
Blackwell Science
01.07.2014
Blackwell Publishing Ltd Blackwell Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | In the present review, we describe and compare the molecular mechanisms that are involved in the regulation of biofilm formation by Pseudomonas putida, Pseudomonas fluorescens, Pseudomonas aeruginosa and Burkholderia cenocepacia. Our current knowledge suggests that biofilm formation is regulated by cyclic diguanosine‐5′‐monophosphate (c‐di‐GMP), small RNAs (sRNA) and quorum sensing (QS) in all these bacterial species. The systems that employ c‐di‐GMP as a second messenger regulate the production of exopolysaccharides and surface proteins which function as extracellular matrix components in the biofilms formed by the bacteria. The systems that make use of sRNAs appear to regulate the production of exopolysaccharide biofilm matrix material in all these species. In the pseudomonads, QS regulates the production of extracellular DNA, lectins and biosurfactants which all play a role in biofilm formation. In B. cenocepacia QS regulates the expression of a large surface protein, lectins and extracellular DNA that all function as biofilm matrix components. Although the three regulatory systems all regulate the production of factors used for biofilm formation, the molecular mechanisms involved in transducing the signals into expression of the biofilm matrix components differ between the species. Under the conditions tested, exopolysaccharides appears to be the most important biofilm matrix components for P. aeruginosa, whereas large surface proteins appear to be the most important biofilm matrix components for P. putida, P. fluorescens, and B. cenocepacia. |
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Bibliography: | http://dx.doi.org/10.1111/1462-2920.12448 Danish Council for Independent Research istex:26109C677D4CB8181C0601C40F5CDC6B71C048F2 ArticleID:EMI12448 Novo Nordisk Foundation ark:/67375/WNG-2HJLHB80-C Danish Strategic Research Council Swiss National Fund - No. 31003A_143773 Lundbeck Foundation ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-3 content type line 23 ObjectType-Review-1 ObjectType-Article-1 ObjectType-Feature-2 |
ISSN: | 1462-2912 1462-2920 |
DOI: | 10.1111/1462-2920.12448 |