Figure 2.

Usnic acid derivatives exhibiting dose−response relationships with Plasmodium-infection intensity in the mosquito midgut. Two replicates of dose–response SMFAs are shown for each UA derivative, (a,b) BT37 and (c,d) BT122. For each compound, a 2-fold dilution series was performed in DMSO prior to mixing with gametocyte-infected erythrocytes. The column headings in tables below each graph and the levels of statistical significance are indicated as in Figure 1.