Table 3.
Effects of coumarin and resveratrol on rhizosphere colonization of R. solanacearum in tobacco.
| Treatments | On the Root Surface | Within the Root | ||||
|---|---|---|---|---|---|---|
| One Day after Inoculation (cfu/g) | Three Days after Inoculation (cfu/g) | Five Days after Inoculation (cfu/g) | One Day after Inoculation (cfu/g) | Three Days after Inoculation (cfu/g) | Five Days after Inoculation (cfu/g) | |
| Control | 1.03 × 106 b | 6.26 × 106 a | 1.79 × 108 a | 0.00 | 1.50 × 105 b | 5.2 × 106 a |
| Coumarin | 9.30 × 105 b | 4.31 × 106 a,b | 1.83 × 107 c | 0.00 | 4.12 × 104 c | 2.44 × 106 b |
| Resveratrol | 3.44 × 105 c | 3.58 × 106 b | 2.64 × 107 c | 0.00 | 1.41 × 105 b | 2.41 × 106 b |
Values represent means of three independent replicates ± SD. Different letters (a, b, c) within a column indicate statistically significant differences between the means (p < 0.05).