Table 2.
Analysis of synergism of Cyt1Aa or mutant toxins with Cry11Aa toxin in 4th instar Aedes aegypti larvae.
| Toxin | S(toxin)OBSa = (Rep1 + Rep2 + Rep3)/n | S(Cyt1Aa, Cry11Aa)EXPb = S(Cyt1Aa)OBS × S(Cry11Aa)OBS | Expected mortalityc = (1 − S(Cyt1Aa, Cry11Aa)EXP) × 100% | Observed mortalityd Cyt1Aa+Cry11Aa |
|---|---|---|---|---|
| Cyt1Aa | 1.00 | 0.80 | 20% | 90 ± 10% |
| A59C | 1.00 | 0.80 | 20% | 57 ± 20% |
| A61C | 0.93 | 0.75 | 25.3% | 83 ± 15% |
| Cry11Aa | 0.80 | |||
aObserved survival of individual toxin S(toxin)OBS corresponds to the observed proportion of larvae that survived to the exposure to Cyt1Aa or mutant toxins. Observed mortality was 20% with Cry11Aa at 200 ng per ml and 0% with Cyt1Aa at 75 ng Cyt1Aa per ml. n = 30 larvae for each toxin tested.