TABLE 1.
Toxicities of activated Cry1A toxins and spores and crystals of Cry1Aa
| Insects | Toxin | LC50 (FL95)a | Resistance ratiob |
|---|---|---|---|
| Sel-A | Cry1Aa (S+C) | 0.23 (0.08–0.50) | 6.4 |
| Cry1Aa | 4.47 (2.66–6.18) | 1.3 | |
| Cry1Ab | 36.2 (23.14–55.17) | 60.3 | |
| Cry1Ac | 26.1 (14.7–43.45) | 118.6 | |
| Sel-B | Cry1Aa (S+C) | 0.15 (0.06–0.38) | 4.2 |
| Cry1Aa | 2.70 (1.16–4.53) | 0.8 | |
| Cry1Ab | 143 (119–186) | 238 | |
| Cry1Ac | 22.7 (12.0–62.1) | 103.2 | |
| PHI | Cry1Aa (S+C) | 0.074 (0.006–0.176) | 2.1 |
| Cry1Aa | 11.73 (5.54–24.69) | 3.5 | |
| Cry1Ab | 2.08 (1.44–3.20) | 3.5 | |
| Cry1Ac | 0.93 (0.56–1.40) | 4.2 | |
| LAB-V | Cry1Aa (S+C) | 0.036 (0.019–0.056) | |
| Cry1Aa | 3.32 (1.53–6.98) | ||
| Cry1Ab | 0.60 (0.40–0.86) | ||
| Cry1Ac | 0.22 (0.14–0.31) |
a
Values for spores and crystals (S+C) of Cry1Aa are expressed in OD600 units. Other values are expressed in milligrams per liter.
b
Resistance ratio = LC50 of resistant strain/LC50 of LAB-V.