Isolation and Characterization of Hydrogenomonas facilis Bacteriophages Under Heterotrophic Growth Conditions

Abstract
We have isolated five strains of bacteriophage specific for Hydrogenomonas facilis. The host range of the phage is limited to H. facilis. Morphologically the phage particles consist of a head 580 A in diameter and a short tail 200 A in length. The particles share a common surface antigen, and all contain deoxyribonucleic acid. The five strains differ from each other in growth characteristics, heat stability, and neutralizing antigens.