THE BACTERIOPHAGE

The Growth of Bacteriophage

1. An anti-Escherichia coli phage has been isolated and its behavior studied. 2. A plaque counting method for this phage is described, and shown to give a number of plaques which is proportional to the phage concentration. The number of plaques is shown to be independent of agar concentration, temperature of plate incubation, and concentration of the suspension of plating bacteria. 3. The effic...

The Growth of Bacteriophage

Certain large protein molecules (viruses) possess the property of multiplying within living organisms. This process, which is at once so foreign to chemistry and so fundamental to biology, is exemplified in the multiplication of bacteriophage in the presence of susceptible bacteria. Bacteriophage offers a number of advantages for the study of the multiplication process not available with viruse...

Epidemiological Studies on Ruman Brucellosis in Iran and the Identification by Bacteriophage

The genome of bacteriophage T4.

The Electrical Charge of Bacteriophage

1. Two types of cataphoresis apparatus for determining, under aseptic conditions, the charge carried by biologically active substances, such as Bacteriophage are described. One cell depends upon the electrophoresis of particles into agar and their subsequent re-suspension in a fluid medium for testing purposes. This cell has certain advantages when employed in connection with agents of small di...