Table 1.
Resistance of Trichoderma endochitinase tobacco plants to A. alternata
| Plant lines | Disease symptoms
|
Disease severity
|
|||||
|---|---|---|---|---|---|---|---|
| R | C | N | None | Slight | Strong | Severe | |
| Ts2 | 20.5 | 18.1 | 15.7 | 79.5 | 20.5 | 0.0 | 0.0 |
| Ts3 | 1.0 | 0.0 | 1.0 | 99.0 | 1.0 | 0.0 | 0.0 |
| Ts4 | 44.3 | 15.7 | 37.1 | 55.7 | 44.3 | 0.0 | 0.0 |
| Ts5 | 69.5 | 64.2 | 66.8 | 30.5 | 28.5 | 22.5 | 18.5 |
| Tx1 | 17.5 | 17.5 | 0.0 | 82.5 | 17.5 | 0.0 | 0.0 |
| Tx3 | 0.0 | 0.0 | 0.0 | 100.0 | 0.0 | 0.0 | 0.0 |
| All trans. | 33.6 | 29.3 | 25.9 | 66.4 | 33.6 | 0.0 | 0.0 |
| Cs1 | 93.5 | 90.3 | 83.9 | 6.5 | 48.3 | 45.2 | 0.0 |
| Cs2 | 100.0 | 100.0 | 83.3 | 0.0 | 0.0 | 0.0 | 100.0 |
| Cs3 | 95.7 | 95.7 | 95.7 | 4.3 | 32.6 | 45.7 | 17.4 |
| Cx1 | 100.0 | 100.0 | 66.7 | 0.0 | 0.0 | 0.0 | 100.0 |
| Cx2 | 100.0 | 100.0 | 100.0 | 0.0 | 0.0 | 0.0 | 100.0 |
| All contr. | 95.8 | 94.7 | 89.5 | 4.2 | 31.6 | 36.8 | 27.4 |
Disease symptoms and severity (5 days after inoculation) of representative transgenic and control lines (see legend to Fig. 2) are indicated as percentage of inoculation points.
All trans., combined values of all transgenic lines (except line Ts5) tested; All contr., combined values of all control lines tested; R, any reaction (C, N, or C + N); C, chlorosis; N, necrosis.