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234. Bacteriophage-organism relationships in the group of lactic streptococci

Published online by Cambridge University Press:  01 June 2009

H. R. Whitehead  and
G. J. E. Hunter
H. R. Whitehead
Affiliation:
Dairy Research Institute (D.S.I.R., N.Z.), Plamerston North, New Zealand
G. J. E. Hunter
Affiliation:
Dairy Research Institute (D.S.I.R., N.Z.), Plamerston North, New Zealand
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Extract

The methods used for isolation and purification of bacteriophages active against lactic streptococci are described. An account is given of the relationships between nine apparently distinct phage races and eleven strains of lactic streptococci. The phages show a tendency towards strain specificity but there are some races which attack up to four different strains. Resistant strains usually arise on continued incubation of lysed cultures. Cross-resistance tests, in those cases where two or more phages act on one strain of streptococci, indicate that the relationships between the phages do not follow any simple rule.

Type
Original Articles
Information
Journal of Dairy Research , Volume 10 , Issue 3 , September 1939 , pp. 403 - 409
Copyright
Copyright © Proprietors of Journal of Dairy Research 1939

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References

REFERENCES

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