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Mechanism of action of Cry1ac toxin from Bacillus thuringiensis in Helicoverpa armigera (Lepidoptera: Noctuidae)
(Universidade Estadual Paulista (Unesp), 2021-04-09)
- Helicoverpa armigera (Hübner, 1805) (Lepidoptera: Noctuidae), known as Cotton bollworm is an insect pest of global importance in cotton crop. Nonetheless, it also attacks several other important economic crops worldwide, ...
Bacillus thuringiensis Cry1Ab Domain III β-16 Is Involved in Binding to Prohibitin, Which Correlates with Toxicity against Helicoverpa armigera (Lepidoptera: Noctuidae)
(2021-01-04)
Helicoverpa armigera is a major insect pest of several crops worldwide. This insect is susceptible to some Bacillus thuringiensis (Bt) Cry insecticidal proteins expressed in transgenic crops or used in biopesticides. ...
Synergism of the Bacillus thuringiensis Cry1, Cry2, and Vip3 Proteins in Spodoptera frugiperda Control
(2019-07-15)
The polyphagous caterpillar, Spodoptera frugiperda, has been controlled with either chemical insecticides or transgenic plants such as Bt maize that expresses the cry and/or vip genes of the Bacillus thuringiensis (Bt) ...
Cry1Ac and Vip3Aa proteins from Bacillus thuringiensis targeting Cry toxin resistance in Diatraea flavipennella and Elasmopalpus lignosellus from sugarcane
(2017-01-01)
The biological potential of Vip and Cry proteins from Bacillus is well known and widely established. Thus, it is important to look for new genes showing different modes of action, selecting those with differentiated ...
Diversity and distribution of lepidoptera-specific toxin genes in Bacillus thuringiensis strains from Argentina
(2017-05)
A total of 268 Bacillus thuringiensis strains obtained from different sources of Argentina were analyzed to determine the diversity and distribution of the cry1, cry2, cry8, cry9 and vip3A genes encoding for lepidopteran-specific ...
Interaction of Bacillus thuringiensis Cry1 and Vip3A proteins with Spodoptera frugiperda midgut binding sites
(2009-04-01)
Vip3Aa, Vip3Af, Cry1Ab, and Cry1Fa were tested for their toxicities and binding interactions. Vip3A proteins were more toxic than Cry1 proteins. Binding assays showed independent specific binding sites for Cry1 and Vip3A ...
Interaction of Bacillus thuringiensis Cry1 and Vip3A proteins with Spodoptera frugiperda midgut binding sites
(2009-04-01)
Vip3Aa, Vip3Af, Cry1Ab, and Cry1Fa were tested for their toxicities and binding interactions. Vip3A proteins were more toxic than Cry1 proteins. Binding assays showed independent specific binding sites for Cry1 and Vip3A ...
Effect of the Cry1, Cry2 and Vip3 protein combinations on the control of Anticarsia gemmatalis (Erebidae) and Chrysodeixis includens (Noctuidae) Lepidoptera
(2020-01-01)
The transgenic soybean expressing the cry1Ac insecticidal gene of the Bacillus thuringiensis bacterium has been widely adopted in agriculture. This bacterium acts as an efficient control agent of pest insects due to the ...