Table 1.
Host range of Pectobacterium phages CB1, CB3, and CB4 on 31 strains of various members of the soft rot Enterobacteriaceae, as determined by spot testing with serial dilutions of phage suspensions. The efficiency of plating (EOP) values were determined for sensitive strains.
| Bacteria | Bacteriophage Infection | |||
|---|---|---|---|---|
| Species | Strain | CB1 | CB3 | CB4 |
| Pectobacterium atrosepticum | DSMZ 18077 (type strain) | 1.000 * | 2.263 | 0.909 |
| DSMZ 30184 | 2.00 × 10−5 | CS | CS | |
| DSMZ 30185 | 0.371 | 0.126 | 0.136 | |
| DSMZ 30186 | 0.003 | 1.000 * | 1.000 * | |
| CB BL1-1 | CS | CS | CS | |
| CB BL2-1 | 0.571 | 0.737 | 0.336 | |
| CB BL3-1 | 0.529 | 0.605 | 0.218 | |
| CB BL4-1 | 0.571 | 0.789 | 0.245 | |
| CB BL5-1 | CS | 0.158 | CS | |
| CB BL7-1 | CS | CS | CS | |
| CB BL9-1 | 0.027 | 0.007 | 0.164 | |
| CB BL11-1 | CS | 0.279 | 0.127 | |
| CB BL12-2 | 2.86 × 10−6 | 0.079 | 0.255 | |
| CB BL13-1 | 1.71 × 10−5 | 0.063 | 0.436 | |
| CB BL14-1 | CS | CS | CS | |
| CB BL15-1 | - | - | - | |
| CB BL16-1 | 0.005 | CS | CS | |
| CB BL18-1 | CS | 0.037 | CS | |
| CB BL19-1 | 0.005 | CS | CS | |
| Pectobacterium carotovorum subsp. carotovorum | DSMZ 30168 (type strain) | - | - | - |
| DSMZ 30169 | - | - | - | |
| DSMZ 30170 | - | - | - | |
| CB BL19-1-37 | - | - | - | |
| Dickeya chrysanthemi bv. chrysanthemi | LMG 2804 | - | - | - |
| Dickeya dianthicola | PD 482 | - | - | - |
| PD 2174 | - | - | - | |
| GBBC 1538 | - | - | - | |
| Dickeya solani | sp. PRI 2222 | - | - | - |
| LMG 25865 | - | - | - | |
| GBBC 1502 | - | - | - | |
| GBBC 1586 | - | - | - | |
Results recorded as −, no infection; CS, presence of clear spot with no plaque formation; number, EOP value; * host strain of phage. EOP values determined by spot testing in triplicate.