Effect of the Cry1, Cry2 and Vip3 protein combinations on the control ofAnticarsia gemmatalis(Erebidae) andChrysodeixis includens(Noctuidae) Lepidoptera

Autor(es)

Figueiredo, Camila Soares ; Zara, Fernando Jose ; Desiderio, Janete Apparecida

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF PEST MANAGEMENT; v. 68, n. 2, p. 9-pg., 2020-09-17.

Resumo

The transgenic soybean expressing thecry1Acinsecticidal gene of theBacillus thuringiensisbacterium has been widely adopted in agriculture. This bacterium acts as an efficient control agent of pest insects due to the expression of different proteins with entomopathogenic activity such as Cry and Vip. This study investigates the toxicity and mode of interaction between the Cry1Ab, Cry1Ac, Cry2Aa, Cry2Ab and Vip3Aa proteins againstChrysodeixis includensandAnticarsia gemmatalislarvae. The combination of the Cry1Ac, Cry2Aa and Vip3Aa toxins had a synergistic effect forC. includens, however, only Vip3Aa and Cry2Aa exhibited synergistic interaction againstA. gemmatalis. Cry1Ab and Cry1Ac proteins have been shown to share receptors with the two species tested, however, Cry1Ac does not share binding sites with Cry2Aa, Cry2Ab, and Vip3Aa in both species. Besides helping the resistance management toB. thuringiensisproteins, the combination of Cry and Vip proteins can increase toxicity through synergistic action. (AU)

• Processo FAPESP: 13/15128-2 - Modo de ação das proteínas Cry1, Cry2 e Vip3 de Bacillus thuringiensis em Spodoptera frugiperda e Anticarsia gemmatalis
• Beneficiário: Camila Soares Figueiredo
• Modalidade de apoio: Bolsas no Brasil - Doutorado