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TWITCHING MOTILITY AND POSSESSION OF POLAR FIMBRIAE IN SPREADING STREPTOCOCCUS SANGUIS ISOLATES FROM THE HUMAN THROAT
Author(s) -
HENRIKSEN SVERRE DICK,
HENRICHSEN JORGEN
Publication year - 1975
Publication title -
acta pathologica microbiologica scandinavica section b microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.909
H-Index - 88
eISSN - 1600-0463
pISSN - 0304-131X
DOI - 10.1111/j.1699-0463.1975.tb00083.x
Subject(s) - fimbria , microbiology and biotechnology , biology , streptococcus , flagellum , bacteria , motility , agar , virulence , biochemistry , genetics , gene
A collection of 19 strains of alpha haemolytic streptococci, isolated from throat swabs and characterized by production of spreading zones around colonies on blood agar, was found to constitute a very homogeneous group with morphological, physiological and biochemical characters corresponding to those of streptococci of sero‐group H, or Streptococcus sanguis , and they all appeared to possess the group H antigen. They all had a common agglutinogen and, in addition, heterogeneous agglutinogens. The spreading growth, which appears to be a common property of S. sanguis , was due to twitching motility, and the spreading cultures possessed polar fimbriae. Neither twitching motility nor the possession of polar fimbriae have been observed in gram‐positive bacteria before.