ISSN:
1432-072X
Keywords:
Bacteriophage K7
;
Tail length
;
R factors
;
Incompatability group W
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Bacteriophage K7 is specific for Escherichia coli strains harbouring R factors of incompatability group W, including hybrid coliphage P1-Myxococcus virescens plasmids. The phage has an unusual morphology with an isometric head and long tail of variable length. The tail lengths appear to fall into classes corresponsing to simple multimers of a unit length. Partially purified lysates of the phage include material that may represent phage particles in the process of biogenesis and other material demonstrating attachment of phage to cell envelope. Newly released phage DNA contains single standed ends. In the course of work, E. coli strains that harbour R factor Sa were found to be apparently restrictive.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00409931
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