Distribution of capsular materials on the cell wall surface of strain Smith diffuse of Staphylococcus aureus.
AUTOR(ES)
Arizono, T
RESUMO
The fine structure of the capsule of Staphylococcus aureus Smith diffuse was examined by the technique of freeze-substitution and immunoelectron microscopy. The cell surface was covered with a thick layer consisting of fine fibrous structures which were absent from an unencapsulated strain, Smith compact. Anti-teichoic acid antibody did not react with this surface layer but reacted with the surface of strain Smith compact. Anti-capsular antibody, made from the serum of a rabbit immunized with strain Smith diffuse and specific absorption with unencapsulated strain Wood 46, reacted with the fibrous layer of the Smith diffuse strain. Since the anti-teichoic acid antibody did not react with the encapsulated strain Smith diffuse, the capsular layer acts as a barrier to penetration of the anti-teichoic acid antibody through the capsular layer. A portion of a few cell surfaces of the encapsulated strain remained accessible to the anti-teichoic acid antibody. The capsular layer in this portion of the cell surface was thin, and this surface seemed to be a new cell wall surface created by the cell separation.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=208093Documentos Relacionados
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