FIGURE 5.

Enhancement of LqhαIT toxicity by DRS. Dose-response curve for toxicity of LqhαIT upon injection to S. falculata larvae in the presence of increasing concentrations of DRS. Forty larvae were used to generate each data point, which represents the ED₅₀ equivalent of LqhαIT in the presence of the indicated dose of DRS. The half-maximal dose of DRS (EC₅₀) that increases the toxicity (decrease in ED₅₀) of LqhαIT is 14 ng/100 mg larvae. Maximal enhancement in LqhαIT toxicity (∼600%) is achieved in the presence of less than 200 ng of DRS.