The role of exopolymers in bacterial adhesion

Detalhes bibliográficos
Autor(a) principal: Azeredo, Joana
Data de Publicação: 1999
Outros Autores: Fialho, Arsénio, Oliveira, Rosário
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/4483
Resumo: The importance of exopolymers in cell adhesion to a hydrophilic surface was established by studying the adhesion of three mutants of Sphingomonas paucimobilis, high, medium and low polysaccharide producers, to non coated and coated glass with the respective exopolymer. TR and CV were found to produce exopolymers with surfactant properties. These surfactants can easily coat the glass surface, making glass hydrophobic and thus enhancing adhesion. It was hypothesised that the exopolymers bound to the glass surface trough their hydrophilic parts and the exopolymers present at the surface of bacteria can bind together, overcoming the energy barrier created by the negative charge of both surfaces.
id RCAP_814ba1951ad23013a07c897975f510d2
oai_identifier_str oai:repositorium.sdum.uminho.pt:1822/4483
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling The role of exopolymers in bacterial adhesionAdhesionSphingomonas paucimobilisHydrophobicityFree energy of adhesionExopolymersBiosurfactantThe importance of exopolymers in cell adhesion to a hydrophilic surface was established by studying the adhesion of three mutants of Sphingomonas paucimobilis, high, medium and low polysaccharide producers, to non coated and coated glass with the respective exopolymer. TR and CV were found to produce exopolymers with surfactant properties. These surfactants can easily coat the glass surface, making glass hydrophobic and thus enhancing adhesion. It was hypothesised that the exopolymers bound to the glass surface trough their hydrophilic parts and the exopolymers present at the surface of bacteria can bind together, overcoming the energy barrier created by the negative charge of both surfaces.International Association on Water Quality (IAWQ)Universidade do MinhoAzeredo, JoanaFialho, ArsénioOliveira, Rosário19991999-01-01T00:00:00Zconference paperinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/1822/4483engIAWQ/IWA CONFERENCE ON BIOFILM SYSTEMS, 4, New York, 1999 - "4th IAWQ/IWA Conference on Biofilm Systems". New York : IAWQ, 1999.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-05-11T05:00:49Zoai:repositorium.sdum.uminho.pt:1822/4483Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T05:00:49Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv The role of exopolymers in bacterial adhesion
title The role of exopolymers in bacterial adhesion
spellingShingle The role of exopolymers in bacterial adhesion
Azeredo, Joana
Adhesion
Sphingomonas paucimobilis
Hydrophobicity
Free energy of adhesion
Exopolymers
Biosurfactant
title_short The role of exopolymers in bacterial adhesion
title_full The role of exopolymers in bacterial adhesion
title_fullStr The role of exopolymers in bacterial adhesion
title_full_unstemmed The role of exopolymers in bacterial adhesion
title_sort The role of exopolymers in bacterial adhesion
author Azeredo, Joana
author_facet Azeredo, Joana
Fialho, Arsénio
Oliveira, Rosário
author_role author
author2 Fialho, Arsénio
Oliveira, Rosário
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Azeredo, Joana
Fialho, Arsénio
Oliveira, Rosário
dc.subject.por.fl_str_mv Adhesion
Sphingomonas paucimobilis
Hydrophobicity
Free energy of adhesion
Exopolymers
Biosurfactant
topic Adhesion
Sphingomonas paucimobilis
Hydrophobicity
Free energy of adhesion
Exopolymers
Biosurfactant
description The importance of exopolymers in cell adhesion to a hydrophilic surface was established by studying the adhesion of three mutants of Sphingomonas paucimobilis, high, medium and low polysaccharide producers, to non coated and coated glass with the respective exopolymer. TR and CV were found to produce exopolymers with surfactant properties. These surfactants can easily coat the glass surface, making glass hydrophobic and thus enhancing adhesion. It was hypothesised that the exopolymers bound to the glass surface trough their hydrophilic parts and the exopolymers present at the surface of bacteria can bind together, overcoming the energy barrier created by the negative charge of both surfaces.
publishDate 1999
dc.date.none.fl_str_mv 1999
1999-01-01T00:00:00Z
dc.type.driver.fl_str_mv conference paper
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/4483
url http://hdl.handle.net/1822/4483
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv IAWQ/IWA CONFERENCE ON BIOFILM SYSTEMS, 4, New York, 1999 - "4th IAWQ/IWA Conference on Biofilm Systems". New York : IAWQ, 1999.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv International Association on Water Quality (IAWQ)
publisher.none.fl_str_mv International Association on Water Quality (IAWQ)
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
_version_ 1817544489548382208

Registros relacionados