dc.creatorVanetti, Maria C.D.
dc.creatorMartins, Maurilio L.
dc.creatorPinto, Uelinton, M.
dc.creatorRiedel, Kathrin
dc.creatorMantovani, Hilário C.
dc.creatorAraújo, Elza F. de
dc.date2017-11-16T17:24:24Z
dc.date2017-11-16T17:24:24Z
dc.date2014-10-09
dc.date.accessioned2023-09-27T22:03:38Z
dc.date.available2023-09-27T22:03:38Z
dc.identifier16784405
dc.identifierhttp://dx.doi.org/10.1590/S1517-83822014000300037
dc.identifierhttp://www.locus.ufv.br/handle/123456789/13153
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8970105
dc.descriptionNumerous 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
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherBrazilian Journal of Microbiology
dc.relation45: 3, p. 1039–1046, Oct. 2014
dc.rightsOpen Acess
dc.subjectMilk
dc.subjectPseudomonas fluorescens
dc.subjectBiofilm formation
dc.subjectQuorum sensing
dc.subjectQuorum quenching
dc.titleLack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk
dc.typeArtigo


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