[Effect of the hemolymph of Triatoma infestans on the morphogenesis of Trypanosoma cruzi].

Growth and differentiation patterns induced by T. infestans whole hemolymph as well as by hemocyte free or hemocyte and quinone free samples were similar; these results indicate that neither hemocytes nor quinones interfered in the duplication of epimastigotes or in their differentiation to metacyclic forms. The minimum amount required to induce differentiation was 2%, lacking inhibitory effect even when assayed at a concentration of 30%. Differentiation was reached simultaneously with the exponential growth period of the culture up to 80%.