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Comparative adhesion of seven species of streptococci isolated from the blood of patients with sub‐acute bacterial endocarditis to fibrin‐platelet clots in vitro
Author(s) -
Crawford I.,
Russell C.
Publication year - 1986
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1986.tb03369.x
Subject(s) - streptococcus salivarius , microbiology and biotechnology , streptococcus , streptococcus pyogenes , adhesion , endocarditis , fibrin , staphylococcus aureus , biology , chemistry , bacteria , immunology , medicine , surgery , genetics , organic chemistry
The adhesion to fibrin‐platelet clots in vitro of 21 strains of streptococci isolated from the blood of patients with sub‐acute bacterial endocarditis (SABE) was measured. The species, in order of greatest adhesion, were Streptococcus faecalis, Streptococcus mutans, Streptococcus milleri, Streptococcus sanguis , dextran‐positive Streptococcus mitior , dextran‐negative Streptococcus mitior and Streptococcus salivarius. Individual strains within species, however, cannot be assumed to be representative of their species and may exhibit unusually high or low adhesion. Adhesion depended upon both bacterial concentration and period of contact. There was no simple relationship between ability to adhere and liability to cause endocarditis. Formation of dextran did not increase adhesion. The streptococci were more adhesive than strains of Escherichia coli and Neisseria sicca and less adhesive than strains of Staphylococcus aureus and Streptococcus pyogenes.