Surface properties of bifidobacterial strains of human origin

The adherence of <i>Bifidobacterium</i> strains isolated from infant feces and commercial fermented dairy products to enterocyte-like cells was correlated with the autoagglutination and hemagglutination properties of these organisms. These results allowed us to define two groups: (i) cel...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Pérez, Pablo Fernando, Minnaard, Jessica, Disalvo, Edgardo A., De Antoni, Graciela Liliana
Formato: Articulo
Lenguaje:Inglés
Publicado: 1998
Materias:
Ciencias Exactas
Bifidobacterium
bacterial adhesion
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/107690
http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC124666&blobtype=pdf
https://aem.asm.org/content/64/1/21
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-107690
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Bifidobacterium
bacterial adhesion
spellingShingle Ciencias Exactas
Bifidobacterium
bacterial adhesion
Pérez, Pablo Fernando
Minnaard, Jessica
Disalvo, Edgardo A.
De Antoni, Graciela Liliana
Surface properties of bifidobacterial strains of human origin
topic_facet Ciencias Exactas
Bifidobacterium
bacterial adhesion
description The adherence of <i>Bifidobacterium</i> strains isolated from infant feces and commercial fermented dairy products to enterocyte-like cells was correlated with the autoagglutination and hemagglutination properties of these organisms. These results allowed us to define two groups: (i) cell-adherent bacteria showing hemagglutination and autoagglutination and (ii) non-cell-adherent, nonhemagglutinating, nonautoagglutinating bacteria. Glass adherence was shown to be nonspecific and was discarded as a criterion for selection of adherent cells. Hydrophobicity appeared to be necessary for adhesion to enterocyte-like cells and autoagglutination. Adhesive strains were highly hydrophobic, and the degree of adherence was slightly dependent on the surface potential. Cells autoagglutinated more when the electrostatic negative charges on the cell surface were shielded by a decrease in the pH from 7 to 2. However, in some strains negative charges at the cell surface were adjuvant to adhesion, thus suggesting that specific chemical interactions occurred. The present results provide a method for preliminary selection of bacteria potentially adherent to epithelial cells by means of autoagglutination.
format Articulo
Articulo
author Pérez, Pablo Fernando
Minnaard, Jessica
Disalvo, Edgardo A.
De Antoni, Graciela Liliana
author_facet Pérez, Pablo Fernando
Minnaard, Jessica
Disalvo, Edgardo A.
De Antoni, Graciela Liliana
author_sort Pérez, Pablo Fernando
title Surface properties of bifidobacterial strains of human origin
title_short Surface properties of bifidobacterial strains of human origin
title_full Surface properties of bifidobacterial strains of human origin
title_fullStr Surface properties of bifidobacterial strains of human origin
title_full_unstemmed Surface properties of bifidobacterial strains of human origin
title_sort surface properties of bifidobacterial strains of human origin
publishDate 1998
url http://sedici.unlp.edu.ar/handle/10915/107690
http://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC124666&blobtype=pdf
https://aem.asm.org/content/64/1/21
work_keys_str_mv AT perezpablofernando surfacepropertiesofbifidobacterialstrainsofhumanorigin
AT minnaardjessica surfacepropertiesofbifidobacterialstrainsofhumanorigin
AT disalvoedgardoa surfacepropertiesofbifidobacterialstrainsofhumanorigin
AT deantonigracielaliliana surfacepropertiesofbifidobacterialstrainsofhumanorigin
bdutipo_str Repositorios
_version_ 1764820443502477312

Ejemplares similares