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ANTAGONISTIC ACTION OF ALPHA HAEMOLYTIC STREPTOCOCCI ON NEISSERIA ELONGATA
Author(s) -
Henriksen S. D.,
Fuglesang Jan E.
Publication year - 1973
Publication title -
acta pathologica microbiologica scandinavica section b microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.909
H-Index - 88
eISSN - 1600-0463
pISSN - 0365-5563
DOI - 10.1111/j.1699-0463.1973.tb02192.x
Subject(s) - microbiology and biotechnology , antagonism , biology , agar , agar plate , alpha (finance) , bacteria , receptor , biochemistry , medicine , construct validity , genetics , nursing , patient satisfaction
Alpha haemolytic streptococci have a marked inhibitory effect on N. elongata in blood agar cultures. M. nonliquefaciens and M. osloensis appear to be less affected, and M. phenylpyrouvica and N. catarrhalis are quite unaffected. The inhibition only appears on the crowded areas of the cultures, and not when colonies grow separately. It appears to be a question of competition for growing space, rather than a toxic effect. The possible consequences of such antagonism for the detection of certain species in cultures are discussed.