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Biofilm formation among clinical and food isolates of Listeria monocytogenes

2013Journal article Open access
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dc.contributor.authorBarbosa, Joana
dc.contributor.authorBorges, Sandra
dc.contributor.authorCamilo, Ruth
dc.contributor.authorMagalhães, Rui
dc.contributor.authorFerreira, Vânia
dc.contributor.authorSantos, Isabel
dc.contributor.authorSilva, Joana
dc.contributor.authorAlmeida, Gonçalo
dc.contributor.authorTeixeira, Paula
dc.date.accessioned2014-05-08T15:07:43Z
dc.date.available2014-05-08T15:07:43Z
dc.date.issued2013
dc.description.abstractObjective. A total of 725 Listeria monocytogenes isolates, 607 from various foods and 118 from clinical cases of listeriosis, were investigated concerning their ability to form biofilms, at 4°C during 5 days and at 37°C during 24 h. Methods. Biofilm production was carried out on polystyrene tissue culture plates. Five L. monocytogenes isolates were tested for biofilm formation after being exposed to acidic and osmotic stress conditions. Results. Significant differences ( ) between clinical and food isolates were observed. At 37°C for 24 h, most food isolates were classified as weak or moderate biofilm formers whereas all the clinical isolates were biofilm producers, although the majority were weak. At 4°C during 5 days, 65 and 59% isolates, from food and clinical cases, respectively, were classified as weak. After both sublethal stresses, at 37°C just one of the five isolates tested was shown to be more sensitive to subsequent acidic exposure. However, at 4°C both stresses did not confer either sensitivity or resistance. Conclusions. Significant differences between isolates origin, temperature, and sublethal acidic stress were observed concerning the ability to form biofilms. Strain, origin, and environmental conditions can determine the level of biofilm production by L. monocytogenes isolates.
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.citationBARBOSA, Joana...[et al.] - Biofilm Formation among Clinical and Food Isolates of Listeria monocytogenes. International Journal of Microbiology. ISSN 1687-9198. Vol. 2013 (2013), 6 p.por
dc.identifier.doi10.1155/2013/524975
dc.identifier.eissn1687-9198
dc.identifier.issn1687-918X
dc.identifier.urihttp://hdl.handle.net/10400.14/14337
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherHindawi Publishing Corporationpor
dc.relationStrategic Project - LA 16 - 2011-2012
dc.relationCHARACTERISTICS OF SPECIFIC STRAINS OF LISTERIA MONOCYTOGENES POTENTIATING PERSISTENCE IN FOOD AND FOOD PROCESSING ENVIRONMENTS AND RELEVANCE TO FOOD SAFETY
dc.relationECOLOGY AND PERSISTENCE OF LISTERIA MONOCYTOGENES IN FOOD ASSOCIATED ENVIRONMENTS RETAIL ESTABLISHMENTS AND KITCHENS FROM HOSPITALS AND ELDERLY LONG-TERM CARE INSTITUTIONS
dc.relationISOLATION, CHARACTERIZATION, VIRULENCE FACTORS AND ANTIBIOTIC RESISTANCE AMONG CAMPYLOBACTER SPP. ISOLATED FROM FOOD AND CLINICAL CASES
dc.relation.urihttp://creativecommons.org/licenses/by/3.0/
dc.titleBiofilm formation among clinical and food isolates of Listeria monocytogenespor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleStrategic Project - LA 16 - 2011-2012
oaire.awardTitleCHARACTERISTICS OF SPECIFIC STRAINS OF LISTERIA MONOCYTOGENES POTENTIATING PERSISTENCE IN FOOD AND FOOD PROCESSING ENVIRONMENTS AND RELEVANCE TO FOOD SAFETY
oaire.awardTitleECOLOGY AND PERSISTENCE OF LISTERIA MONOCYTOGENES IN FOOD ASSOCIATED ENVIRONMENTS RETAIL ESTABLISHMENTS AND KITCHENS FROM HOSPITALS AND ELDERLY LONG-TERM CARE INSTITUTIONS
oaire.awardTitleISOLATION, CHARACTERIZATION, VIRULENCE FACTORS AND ANTIBIOTIC RESISTANCE AMONG CAMPYLOBACTER SPP. ISOLATED FROM FOOD AND CLINICAL CASES
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FEQB%2FLA0016%2F2011/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FAGR-ALI%2F64662%2F2006/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F71704%2F2010/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F35392%2F2007/PT
oaire.citation.titleInternational Journal of Microbiology
oaire.citation.volume2013
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream3599-PPCDT
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person.familyNameBarbosa
person.familyNameBorges
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person.familyNameAlmeida
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person.givenNameJoana
person.givenNameSandra
person.givenNameRui
person.givenNameVânia
person.givenNameJoana
person.givenNameGonçalo
person.givenNamePaula
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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