Table 3.
Survival of E. amylovora strains in apple rootstock MM106.
| Inoculumsa cfu/shoot | Re‐isolated bacteria cellsb (cfu/shoot) | |||||
|---|---|---|---|---|---|---|
| Ea1189 | ΔacrB | ΔtolC | ΔacrB/ΔtolC | ΔacrB (acrAB) | ΔtolC (tolC) | |
| 1.2 × 103 | 4.4 × 103 ± 2 × 102 | 0 | 0 | 0 | 4.1 × 103 ± 2 × 102 | 4.3 × 103 ± 2 × 102 |
| 1.1 × 104 | 1.6 × 105 ± 2 × 103 | 0 | 0 | 0 | 1.5 × 105 ± 2 × 103 | 1.5 × 105 ± 2 × 103 |
| 1.0 × 105 | 5.4 × 105 ± 1 × 103 | 1.2 × 102 ± 9 × 101 | 1.5 × 102 ± 6 × 101 | 1.9 × 102 ± 6 × 101 | 3.4 × 105 ± 1 × 103 | 3.4 × 105 ± 1 × 103 |
| 1.2 × 106 | 7.1 × 107 ± 1 × 104 | 6.4 × 103 ± 2 × 102 | 8.1 × 103 ± 2 × 102 | 9.9 × 103 ± 2 × 102 | 7.6 × 107 ± 1 × 104 | 7.5 × 107 ± 1 × 104 |
| 1.0 × 107 | 8.8 × 108 ± 2 × 105 | 1.7 × 104 ± 3 × 103 | 1.7 × 104 ± 3 × 103 | 1.8 × 104 ± 3 × 103 | 8.4 × 108 ± 1 × 105 | 8.5 × 108 ± 1 × 105 |
a.
Bacteria were inoculated by prick technique in the shoot tip of plants.
b.
Establishment of a population of E. amylovora strains was determined 24 h after inoculation. Data represent the average cfu numbers from 15 individual plants.