Haemagglutination and surface structures in strains of Clostridium spiroforme

Lucilla Baldassarri; Annalisa Pantosti; Alfredo Caprioli; Paola Mastrantonio; Gianfranco Donelli

Haemagglutination and surface structures in strains of Clostridium spiroforme

Lucilla Baldassarri, Annalisa Pantosti, Alfredo Caprioli, Paola Mastrantonio, Gianfranco Donelli

Fondazione Santa Lucia

Research output: Contribution to journal › Article › peer-review

Abstract

Five strains of Clostridium spiroforme were examined for their surface properties. All strains were able to agglutinate human erythrocytes. Electron microscopy showed a ruthenium red-positive capsule mediating the attachment of bacteria to erythrocytes. Two strains, showing the lowest degree of haemagglutination, exhibited an additional external layer of filamentous structures, possibly interfering with the agglutinating activity. In spite of their agglutinating ability, the C. spiroforme strains did not show surface hydrophobicity, thus suggesting the possible existence of a new type of clostridial adhesin.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	FEMS Microbiology Letters
Volume	60
Issue number	1
Publication status	Published - Jul 1 1989

Keywords

Capsule
Clostridium
Haemagglutination

ASJC Scopus subject areas

Genetics
Molecular Biology
Applied Microbiology and Biotechnology
Microbiology

Cite this

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AU - Pantosti, Annalisa

AU - Caprioli, Alfredo

AU - Mastrantonio, Paola

AU - Donelli, Gianfranco

PY - 1989/7/1

Y1 - 1989/7/1

N2 - Five strains of Clostridium spiroforme were examined for their surface properties. All strains were able to agglutinate human erythrocytes. Electron microscopy showed a ruthenium red-positive capsule mediating the attachment of bacteria to erythrocytes. Two strains, showing the lowest degree of haemagglutination, exhibited an additional external layer of filamentous structures, possibly interfering with the agglutinating activity. In spite of their agglutinating ability, the C. spiroforme strains did not show surface hydrophobicity, thus suggesting the possible existence of a new type of clostridial adhesin.

AB - Five strains of Clostridium spiroforme were examined for their surface properties. All strains were able to agglutinate human erythrocytes. Electron microscopy showed a ruthenium red-positive capsule mediating the attachment of bacteria to erythrocytes. Two strains, showing the lowest degree of haemagglutination, exhibited an additional external layer of filamentous structures, possibly interfering with the agglutinating activity. In spite of their agglutinating ability, the C. spiroforme strains did not show surface hydrophobicity, thus suggesting the possible existence of a new type of clostridial adhesin.

KW - Capsule

KW - Clostridium

KW - Haemagglutination

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Haemagglutination and surface structures in strains of Clostridium spiroforme

Abstract

Keywords

ASJC Scopus subject areas

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