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Stable and unstable alterations of the host-induced modification properties of Escherichia coli B, K and C

Published online by Cambridge University Press:  14 April 2009

S. W. Glover  and
C. Colson
S. W. Glover
Affiliation:
Medical Research Council, Microbial Genetics Research Unit, Hammersmith Hospital, Ducane Road, London, W.12
C. Colson
Affiliation:
Medical Research Council, Microbial Genetics Research Unit, Hammersmith Hospital, Ducane Road, London, W.12
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Strains with altered properties of host-induced modification (HIM) have been isolated. Someof these variants were stable on first isolation but the majority of them are unstable. They segregate during many generations two different stable HIM phenotypes and a third type which continues to segregate. Usually this instability disappears during repeated serial single colonyisolation, but in one case it still persisted after nine such single colony isolation steps. Evidence suggesting that they are unstable partial diploids is discussed.

Type
Research Article
Information
Genetics Research , Volume 7 , Issue 2 , April 1966 , pp. 223 - 234
Copyright
Copyright © Cambridge University Press 1966

References

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