Skip to Main Content
Table 1.

Toxicity of recombinant and Bacillus thuringiensis subsp. israelensis (Bti) 4Q7 strains producing the B. sphaericus(Bs) binary toxin, B. thuringiensis Cry 11B and/or Cyt1A against fourth instar Culex quinquefasciatus and Aedes aegypti in comparsion with wild-type strains

StrainToxin combinationLC50 (fiducial limits) (ng ml−1)Slope (± s.e.m.)
Culex quinquefasciatus    
4Q7/pPFT11Bs-CRP Cry11B 9.2 (6.8-12.1) 2.0±0.2 
4Q7/p45S1 Bin + Cyt1A 3.7 (2.5-5.2) 1.5±0.2 
4Q7/p45S1-11B Cry11B + Bin + Cyt1A 1.7 (1.2-2.5) 1.5±0.2 
Bti IPS-82 Cry4A + Cry4B + Cry11A + Cyt1A 7.9 (6.2-9.7) 3.4±0.6 
Bs 2362 Bin 12.6 (8.7-17.5) 1.4±0.2 
Aedes aegypti    
4Q7/pPFT11Bs-CRP Cry11B 28.5 (17.7-45.2) 2.6±0.5 
4Q7/p45S1 Bin + Cyt1A 265.5 (214.9-321.6) 3.0±0.4 
4Q7/p45S1-11B Cry11B + Bin + Cyt1A 37.2 (30.5-44.8) 3.0±0.4 
Bti IPS-82 Cry4A + Cry4B + Cry11A + Cyt1A 10.2 (8.0-21.9) 5.6±1.6 
Bs 2362 Bin Not tested 
StrainToxin combinationLC50 (fiducial limits) (ng ml−1)Slope (± s.e.m.)
Culex quinquefasciatus    
4Q7/pPFT11Bs-CRP Cry11B 9.2 (6.8-12.1) 2.0±0.2 
4Q7/p45S1 Bin + Cyt1A 3.7 (2.5-5.2) 1.5±0.2 
4Q7/p45S1-11B Cry11B + Bin + Cyt1A 1.7 (1.2-2.5) 1.5±0.2 
Bti IPS-82 Cry4A + Cry4B + Cry11A + Cyt1A 7.9 (6.2-9.7) 3.4±0.6 
Bs 2362 Bin 12.6 (8.7-17.5) 1.4±0.2 
Aedes aegypti    
4Q7/pPFT11Bs-CRP Cry11B 28.5 (17.7-45.2) 2.6±0.5 
4Q7/p45S1 Bin + Cyt1A 265.5 (214.9-321.6) 3.0±0.4 
4Q7/p45S1-11B Cry11B + Bin + Cyt1A 37.2 (30.5-44.8) 3.0±0.4 
Bti IPS-82 Cry4A + Cry4B + Cry11A + Cyt1A 10.2 (8.0-21.9) 5.6±1.6 
Bs 2362 Bin Not tested 
Close Modal

or Create an Account

Close Modal
Close Modal