[Biological properties and DNA nucleotide makeup of Pseudomonas bacteriophages].

Fifty-two bacteriophages active against Pseudomonas bacteria were isolated from nautral sources and their following properties were studied: the morphology of negative colonies, the spectrum of lytic action, and the susceptibility to certain chemical and physical factors. One phage was shown to contain lipids. The content of GC pairs in the DNA of the phages determined from the melting temperature varied within the range of 46 to 67%.