A BACTERIOPHAGE OF A MODERATELY HALOPHILIC BACTERIUM

A bacteriophage of an aerobic, gram-negative, rod-shaped halophilic bacterium, provisionally named Pseudomonas sp. G3, is described. The phage has a head and a tail and is similar in appearance to Salmonella phage Beccles. It infects its bacterial host at all salt concentrations in which the bacterium is able to grow. In contrast to phages of halophilic archaebacteria, the newly-described phage is relatively stable in the absence of salt. It also infects Vibrio costicola and two unidentified halophilic eubacteria.