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FEMS Microbiol Lett. 1989 Nov;53(1-2):187-92.

Infection of Streptococcus oralis NCTC 11427 by pneumococcal phages.

Author information

1
Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain.

Abstract

We have found a group of pneumococcal bacteriophages (Cp-1, Cp-7) that can successfully infect and replicate in Streptococcus oralis, whereas Dp-1 was unable to infect this species. We have also developed conditions that allowed transfection of S. oralis using Dp-1 DNA. Our results support the direct involvement of the phage-coded lysins in the liberation of the phage progeny from infected S. oralis cells. Since S. oralis and S. pneumoniae are bacteria that share the same ecological niche in humans, the availability of the system described here should allow to extend our current studies on the modular organization of the lytic enzymes and might serve as a tool to study the evolutionary relationships between host and parasite.

PMID:
2612885
DOI:
10.1016/0378-1097(89)90389-3
[Indexed for MEDLINE]

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