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Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk

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dc.contributor.author Vanetti, Maria C.D.
dc.contributor.author Martins, Maurilio L.
dc.contributor.author Pinto, Uelinton, M.
dc.contributor.author Riedel, Kathrin
dc.contributor.author Mantovani, Hilário C.
dc.contributor.author Araújo, Elza F. de
dc.date.accessioned 2017-11-16T17:24:24Z
dc.date.available 2017-11-16T17:24:24Z
dc.date.issued 2014-10-09
dc.identifier.issn 16784405
dc.identifier.uri http://dx.doi.org/10.1590/S1517-83822014000300037
dc.identifier.uri http://www.locus.ufv.br/handle/123456789/13153
dc.description.abstract Numerous bacteria coordinate gene expression in response to small signalling molecules in many cases known as acylhomoserine lactones (AHLs), which accumulate as a function of cell density in a process known as quorum sensing. This work aimed to determine if phenotypes that are important to define microbial activity in foods such as biofilm formation, swarming motility and proteolytic activity of two Pseudomonas fluorescens strains, isolated from refrigerated raw milk, are influenced by AHL molecules. The tested P. fluorescens strains did not produce AHL molecules in none of the evaluated media. We found that biofilm formation was dependent on the culture media, but it was not influenced by AHLs. Our results indicate that biofilm formation, swarming motility and proteolytic activity of the tested P. fluorescens strains are not regulated by acyl-homoserine lactones. It is likely that AHL-dependent quorum sensing system is absent from these strains en
dc.format pdf pt-BR
dc.language.iso eng pt-BR
dc.publisher Brazilian Journal of Microbiology pt-BR
dc.relation.ispartofseries 45: 3, p. 1039–1046, Oct. 2014 pt-BR
dc.rights Open Acess pt-BR
dc.subject Milk pt-BR
dc.subject Pseudomonas fluorescens pt-BR
dc.subject Biofilm formation pt-BR
dc.subject Quorum sensing pt-BR
dc.subject Quorum quenching pt-BR
dc.title Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk en
dc.type Artigo pt-BR


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  • Artigos [265]
    Artigos Técnico-científicos na área de Microbiologia

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