Fig. 1

Cry1Aa toxin induces cell necrosis in Cry1Aa toxin receptor (CryR)-overexpressing cells in wing pouch in wing discs. (a–c) Propidium iodide (PI) staining of cultured wing discs from third instar larvae expressing CryR by WP-Gal4. WP > GFP, CryR incubated 1 h with 100 nM Cry1Aa showed PI signal (c), in contrast to negative controls WP > GFP, LacZ with 100 nM Cry1Aa (b) or WP > GFP, CryR without Cry1Aa (a). Scale bar, 100 μm