Table 4.
Bacterial counts in colonization experiments.
| Strain/cultivar | Rhizoplane | Rhizosphere | Endosphere CFU (g dry weight) -1∗ | ||
|---|---|---|---|---|---|
| CFU (g soil)-1 | Root∗ | 2 cm∗ | Leaves∗ | ||
| A20 (733) | + | 1.66 × 106 ± 0.21 a | 1.65 × 102 ± 0.18 a | 1 × 104 | – |
| A20 (60) | + | 1.3 × 106 ± 0.43 a | 3.43 × 102± 0.40 a | 1 × 102 | – |
| 7.1 (733) | + | 4.23 × 106 ± 0.68 c | 4.93 × 102 ± 0.3 a | – | – |
| 7.1 (60) | + | 7.8 × 105 ± 1.17 a,b | 1.7 × 103 ± 0.172 b | – | – |
| 5.1 (733) | + | 2.13 × 106 ± 0.32 a | – | – | – |
| 5.1 (60) | – | 4.9 × 104 ± 2.8 b | – | – | – |
Numbers represent means ± Standard Deviation for three biological replicates for each strain, with five plants per replicate. Different letters within a column indicate that values are statistically different, according to one way-ANOVA test (p < 0.05). ∗Endophytic colonization assay was performed under gnotobiotic condition.