Haemagglutination and surface structures in strains of Clostridium spiroforme

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

Research output: Contribution to journalArticlepeer-review


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 languageEnglish
Pages (from-to)1-4
Number of pages4
JournalFEMS Microbiology Letters
Issue number1
Publication statusPublished - Jul 1 1989


  • Capsule
  • Clostridium
  • Haemagglutination

ASJC Scopus subject areas

  • Genetics
  • Molecular Biology
  • Applied Microbiology and Biotechnology
  • Microbiology


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