TABLE 1.
Myxophages Mx8 and Mx82 are homoimmunea
| Phage | EOP on indicated host
|
||
|---|---|---|---|
| DZ1(Mx8) | DZ1(Mx81) | DZ1(Mx82) | |
| Mx8 | 10−5 | 1 | 10−5 |
| Mx81 | 1 | <10−9 | 1 |
| Mx82 | 10−5 | 1 | 10−5 |
a
Permissive host DZ1 and lysogens of prophages Mx8, Mx81, and Mx82 were grown to an exponential density of 4 × 108 cells/ml in CT medium at 32°C, and 0.2 ml of cells was mixed with serial dilutions of high-titer stocks of each phage and plated on CT plates by the soft agar overlay method. Plates were scored for plaques after incubation at 32°C for 48 h. EOPs were calculated as the titers of each phage on each host divided by the titer on nonlysogenic host DZ1 (EOP of 1) and are the averages of at least three independent determinations.