TABLE 1.
LC50 values of Cry1 δ endotoxins administered to neonate and third-instar lepidoptera
| Toxin | Larvae |
M. sexta
|
LC50 (μg/ml) for P. brassicae |
M. brassicae
|
S. exigua
|
A. ipsilon
|
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LC50 (μg/ml) | % Mortal- ity | % Weight loss | LC50 (μg/ml) | % Mortal- ity | % Weight loss | LC50 (μg/ml) | % Mortal- ity | % Weight loss | LC50 (μg/ml) | % Mortal- ity | % Weight loss | |||
| Cry1J | Neonatea | 2.15 (1.85-2.58)c | 5.23 (3.38-8.27) | >150 | 5 | 83 | 34.99 (21.86-59.12) | >200 | 12 | 48 | ||||
| Third instarb | 5.09 (3.98-6.63) | 76.42 (66.06-91.48) | >150 | 0 | 3 | 52.94 (10.65-84.62) | >200 | 0 | 4 | |||||
| Cry1Ca | Neonate | 0.889 (0.732-1.07) | 12.97 (9.87-18.98) | 3.5 (2.83-4.50) | 23.84 (19.29-29.23) | >200 | 0 | 3 | ||||||
| Third instar | 5.56 (4.15-7.61) | 14.63 (9.71-21.62) | >50 | 3 | 90 | 20.32 (5.88-36.46) | >200 | 0 | 8 | |||||
| Cry1Ac | Neonate | 0.033 (0.022-0.049) | 0.165 (0.12-0.27) | >150 | 20 | 94 | 105.79 (82.63-160.8) | >200 | 40 | 90 | ||||
| Third instar | 1.24 (0.95-1.65) | 0.872 (0.53-2.25) | >150 | 20 | 34 | 116.16 (84.14-214.2) | >200 | 0 | 16 | |||||
| Cry1Ba | Neonate | 42.40 (32.26-53.39) | 0.20 (0.146-.273) | >150 | 0 | 20 | >150 | 0-10 | 0-40 | >200 | 0 | 0 | ||
| Third instar | >150 | 0 | 84 | 0.306 (0.212-0.391) | >150 | 0 | 0 | >150 | 0-10 | 0-20 | >200 | 0 | 0 | |
a
BBMV were prepared from whole neonate larvae.
b
BBMV were prepared from whole third-instar larvae.
c
The values in parentheses are 95% confidence intervals.