Solubilized protoxins of nine Cry1 and one hybrid Cry1 ¿-endotoxin from Bacillus thuringiensis were tested for their activity against larvae of the codling moth (Cydia pomonella L). Cry1Da was the most toxic, followed by Cry1Ab, Cry1Ba, and Cry1Ac, while Cry1Aa, Cry1Fa, Cry1Ia, and SN19 were still less active. Cry1Ca and Cry1Cb showed no activity. In vitro trypsin activation increased activity of all eight active ¿-endotoxins, and dramatically enhanced toxicity of hybrid SN19, Cry1Aa, Cry1Ac, and Cry1Fa. The differences between toxicity of proteins before and after trypsin digestion suggests that proteolytic activation in the C. pomonella digestive tract plays a critical role for the activity of Cry proteins against this insect
Bacillus thuringiensis has been extensively used in agroecosystems for four decades due to its high ...
removed nearly all toxicity for Bombyx mon (>1,000-fold less active than the wild type). The loss...
Crystal proteins from Bacillus thuringiensis subsp. thompsoni strain HnC are active against the codl...
Solubilized protoxins of nine Cry1 and one hybrid Cry1 ¿-endotoxin from Bacillus thuringiensis were ...
Bacillus thuringiensis (Bt) produces a proteinaceous parasporal crystalline inclusion which is patho...
Cry1Ia and Cry1Aa proteins exhibited toxicities against Prays oleae with LC(50) of 189 and 116 ng/cm...
Twelve Cry1 and two Cry9 ?-endotoxins fromBacillus thuringiensis were tested for their activity agai...
Cry1 delta-endotoxins of Bacillus thuringiensis are generally active against lepidopteran insects, b...
The activity of seven Cry1, one Cry9 and one hybrid Cry1 protoxins against neonate larvae of summer ...
Whole-crystal preparations from strains HD-1 and HD-133, activated Cry 1Ab and Cry 1C toxins as well...
We studied mechanisms of resistance to Bacillus thuringiensis insecticidal crystal protein Cry1C in ...
Insecticidal δ-endotoxins of Bacillus thuringiensis, Cry IA (a, b and c) were prepared from over-exp...
To test our hypothesis that substitution of domain III of Bacillus thuringiensis delta-endotoxin (Cr...
Three members of the d-endotoxin group of toxins expressed by Bacillus thuringiensis subsp. israelen...
The pathological effect of the Bacillus thuringiensis Cry δ-endotoxins on susceptible insect larvae ...
Bacillus thuringiensis has been extensively used in agroecosystems for four decades due to its high ...
removed nearly all toxicity for Bombyx mon (>1,000-fold less active than the wild type). The loss...
Crystal proteins from Bacillus thuringiensis subsp. thompsoni strain HnC are active against the codl...
Solubilized protoxins of nine Cry1 and one hybrid Cry1 ¿-endotoxin from Bacillus thuringiensis were ...
Bacillus thuringiensis (Bt) produces a proteinaceous parasporal crystalline inclusion which is patho...
Cry1Ia and Cry1Aa proteins exhibited toxicities against Prays oleae with LC(50) of 189 and 116 ng/cm...
Twelve Cry1 and two Cry9 ?-endotoxins fromBacillus thuringiensis were tested for their activity agai...
Cry1 delta-endotoxins of Bacillus thuringiensis are generally active against lepidopteran insects, b...
The activity of seven Cry1, one Cry9 and one hybrid Cry1 protoxins against neonate larvae of summer ...
Whole-crystal preparations from strains HD-1 and HD-133, activated Cry 1Ab and Cry 1C toxins as well...
We studied mechanisms of resistance to Bacillus thuringiensis insecticidal crystal protein Cry1C in ...
Insecticidal δ-endotoxins of Bacillus thuringiensis, Cry IA (a, b and c) were prepared from over-exp...
To test our hypothesis that substitution of domain III of Bacillus thuringiensis delta-endotoxin (Cr...
Three members of the d-endotoxin group of toxins expressed by Bacillus thuringiensis subsp. israelen...
The pathological effect of the Bacillus thuringiensis Cry δ-endotoxins on susceptible insect larvae ...
Bacillus thuringiensis has been extensively used in agroecosystems for four decades due to its high ...
removed nearly all toxicity for Bombyx mon (>1,000-fold less active than the wild type). The loss...
Crystal proteins from Bacillus thuringiensis subsp. thompsoni strain HnC are active against the codl...