Advances in research on molecular structure and function of Bt(Bacillus thuringiensis)receptors in insects

Bacillus thuringiensis(Bt)receptor is very important to the toxicity expression of Bt in insects.Change in binding ability between this receptor and Bt insecticidal proteins may be the main mechanism of Bt resistance.In this paper,the types,structure,binding characteristics of the insect receptors,including aminopeptidase N,cadherin_like protein,alkaline phosphatase and glycolipids,the expression of genes of insect receptors in endogenous cells,and the relationships between Bt resistance and receptor are reviewed.