Table I. Carbohydrate consumption and in vitro growth on root exudate.
| Carbohydrate | Germination Rate in BS Plus Carbohydrate (1%) | ||
| Wild Type | ΔMrt | ΔMrt Complemented with Mrt | |
| % | |||
| BS only | 8.0 ± 0.2 | 7.8 ± 0.5 | 8.0 ± 0.6 |
| Monosaccharides | |||
| Fru | 27.6 ± 1.2 | 26.2 ± 1.8 | 27.3 ± 1.7 |
| Man | 58.2 ± 3.2 | 56.2 ± 2.7 | 58.1 ± 2.9 |
| Oxylose | 24.8 ± 2.2 | 22.4 ± 1.9 | 25.1 ± 2.5 |
| Sorbose | 24.8 ± 1.3 | 25±1.4 | 24.7 ± 1.9 |
| Glc | 36.4 ± 2.3 | 34.8 ± 2.9 | 36.5 ± 3.1 |
| Gal | 42.4 ± 2.5 | 41.4 ± 2.8 | 42.3 ± 2.6 |
| Homologous disaccharides or oligosaccharides composed of Glc | |||
| Maltose | 35.6 ± 1.9 | 34.4 ± 2.3 | 35.0 ± 2.1 |
| Trehalose | 35.2 ± 2.1 | 33±3.3 | 34.5 ± 2.7 |
| Cellobiose | 29.8 ± 2.2 | 28.9 ± 3.4 | 29.3 ± 2.9 |
| Maltotriose | 25.5 ± 2.1 | 24.9 ± 2.4 | 25.3 ± 2.2 |
| Maltotetraose | 26.3 ± 2.5 | 25.8 ± 1.9 | 25.9 ± 2.8 |
| Maltopentaose | 26.9 ± 2.2 | 26.2 ± 3.3 | 27.1 ± 3.2 |
| Maltohexaose | 25.8 ± 2.9 | 26.1 ± 1.7 | 25.9 ± 1.8 |
| Maltoheptaose | 25.1 ± 0.9 | 25.5 ± 1.3 | 24.9 ± 2.1 |
| Heterologous dioligosaccharides composed of a mixture of monosaccharides | |||
| Suc | 35.2 ± 2.3 | 12.2 ± 2.3 | 35.3 ± 2.4 |
| Lactose | 34.8 ± 2.1 | 21.6 ± 2.1 | 34.9 ± 2.2 |
| Raffinose | 31.2 ± 3.1 | 7.4 ± 0.7 | 30.9 ± 2.9 |
| Melezitose | 30.2 ± 2.8 | 8.2 ± 0.2 | 31.1 ± 3.1 |
| Stachyose | 31.9 ± 2.7 | 7.6 ± 0.3 | 31.5 ± 2.5 |
| Verbascose | 29.9 ± 2.3 | 7.8 ± 0.6 | 29.8 ± 2.1 |
| Root exudate alone (dissolved in sterile distilled water) | |||
| 1 mg mL−1 | 100 | 100 | 100 |
| 0.1 mg mL−1 | 85 ± 1.2 | 53.6 ± 1.8 | 84.5 ± 1.5 |
| 0.01 mg mL−1 | 28 ± 2.1 | 8.1 ± 1.5 | 28.1 ± 1.9 |
| 0 mg mL−1 | 7.8 ± 1.9 | 7.9 ± 1.2 | 8.0 ± 1.5 |