Phage resistance in pure strains of cheese starter streptococci
- 1 June 1960
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Dairy Research
- Vol. 27 (2) , 161-164
- https://doi.org/10.1017/s0022029900010232
Abstract
Summary: The ratio of phage-resistant to phage-susceptible chains in five strains ofStreptococcus cremorisand two ofStr. lactiswas investigated. It was shown that this ratio varied between strains and was decreased when the cultures were subcultured with extremely small inocula ( <50 chains/ml) and increased with relatively large inocula (1%). It is suggested that resistant cells arise by mutations occurring in the absence of phage.Keywords
This publication has 4 references indexed in Scilit:
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