Table II.
Induction of T. versicolor haustoria by flavonoids
| Compound | Root
Tips with Haustoria
|
||
|---|---|---|---|
| 1.0 μm | 10 μm | 100 μm | |
| proportion | |||
| Peonidin | 0.12 ± 0.15 | 0.83 ± 0.15 | 0.65 ± 0.16 |
| Pelargonidin | 0.00 ± 0.00 | 0.04 ± 0.04 | 0.26 ± 0.10 |
| Cyanidin | 0.03 ± 0.04 | 0.01 ± 0.02 | 0.11 ± 0.14 |
| Malvidin | 0.02 ± 0.03 | 0.04 ± 0.07 | 0.11 ± 0.11 |
| Quercetin | 0.03 ± 0.04 | 0.00 ± 0.00 | 0.04 ± 0.06 |
| Kaempferol | 0.00 ± 0.00 | 0.00 ± 0.00 | 0.04 ± 0.06 |
| Delphinidin | 0.00 ± 0.00 | 0.03 ± 0.05 | 0.03 ± 0.05 |
| Isorhamnetin | 0.00 ± 0.00 | 0.04 ± 0.06 | 0.04 ± 0.04 |
| Chrysoeriol | 0.01 ± 0.02 | 0.02 ± 0.02 | 0.01 ± 0.02 |
Flavonoids were diluted in water to the concentrations shown. Values are the means ± sd of three plates with six T. versicolor plants each (50–90 total root tips per treatment).