Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Microbiology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300037 |
Resumo: | 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. |
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Brazilian Journal of Microbiology |
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Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milkmilkPseudomonas fluorescensbiofilm formationquorum sensingquorum quenchingNumerous 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.Sociedade Brasileira de Microbiologia2014-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300037Brazilian Journal of Microbiology v.45 n.3 2014reponame:Brazilian Journal of Microbiologyinstname:Sociedade Brasileira de Microbiologia (SBM)instacron:SBM10.1590/S1517-83822014000300037info:eu-repo/semantics/openAccessMartins,Maurilio L.Uelinton,M. PintoRiedel,KathrinVanetti,Maria C.D.Mantovani,Hilário C.Araújo,Elza F. deeng2014-11-04T00:00:00Zoai:scielo:S1517-83822014000300037Revistahttps://www.scielo.br/j/bjm/ONGhttps://old.scielo.br/oai/scielo-oai.phpbjm@sbmicrobiologia.org.br||mbmartin@usp.br1678-44051517-8382opendoar:2014-11-04T00:00Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM)false |
dc.title.none.fl_str_mv |
Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk |
title |
Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk |
spellingShingle |
Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk Martins,Maurilio L. milk Pseudomonas fluorescens biofilm formation quorum sensing quorum quenching |
title_short |
Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk |
title_full |
Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk |
title_fullStr |
Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk |
title_full_unstemmed |
Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk |
title_sort |
Lack of AHL-based quorum sensing in Pseudomonas fluorescens isolated from milk |
author |
Martins,Maurilio L. |
author_facet |
Martins,Maurilio L. Uelinton,M. Pinto Riedel,Kathrin Vanetti,Maria C.D. Mantovani,Hilário C. Araújo,Elza F. de |
author_role |
author |
author2 |
Uelinton,M. Pinto Riedel,Kathrin Vanetti,Maria C.D. Mantovani,Hilário C. Araújo,Elza F. de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Martins,Maurilio L. Uelinton,M. Pinto Riedel,Kathrin Vanetti,Maria C.D. Mantovani,Hilário C. Araújo,Elza F. de |
dc.subject.por.fl_str_mv |
milk Pseudomonas fluorescens biofilm formation quorum sensing quorum quenching |
topic |
milk Pseudomonas fluorescens biofilm formation quorum sensing quorum quenching |
description |
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. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300037 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300037 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1517-83822014000300037 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Microbiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Microbiologia |
dc.source.none.fl_str_mv |
Brazilian Journal of Microbiology v.45 n.3 2014 reponame:Brazilian Journal of Microbiology instname:Sociedade Brasileira de Microbiologia (SBM) instacron:SBM |
instname_str |
Sociedade Brasileira de Microbiologia (SBM) |
instacron_str |
SBM |
institution |
SBM |
reponame_str |
Brazilian Journal of Microbiology |
collection |
Brazilian Journal of Microbiology |
repository.name.fl_str_mv |
Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM) |
repository.mail.fl_str_mv |
bjm@sbmicrobiologia.org.br||mbmartin@usp.br |
_version_ |
1752122206630969344 |