FIG. 2.

Carboxypeptidase activity in noninfected and P. falciparum-infected A. gambiae midguts. CPB activity was determined in midguts isolated before and at 14 h, 24 h, and 48 h after ingestion of a noninfected human blood meal (•) or P. falciparum-infected human blood meal (○). One unit of enzyme activity is defined as 1 μmol of amino acids released/min. CPB activity in midguts isolated from three independent infection experiments and controls was analyzed. Bars indicate standard deviations for each set of three independent experiments.