Unshared binding sites for Bacillus thuringiensis Cry3Aa and Cry3Ca proteins in the weevil Cylas puncticollis (Brentidae)

作者：Hernandez Martinez Patricia; Mara Vera Velasco Natalia; Escriche Baltasar^*

来源：Toxicon, 2016, 122: 50-53.

DOI：10.1016/j.toxicon.2016.09.014

• African sweetpotato weevil
• Binding sites
• Insect resistance management
• Insecticidal proteins
• Insect control

Bacillus thuringiensis Cry3Aa and Cry3Ca proteins have been reported to be toxic against the African sweetpotato pest Cylas puncticollis. In the present work, the binding sites of these proteins in C puncticollis brush border vesicles suggest the occurrence of different binding sites, but only one of them is shared. Our results suggest that pest resistance mediated by alteration of the shared Cry-receptor binding site might not render both Cry proteins ineffective.

• 出版日期2016-11