Fig. 5From: Induction of programmed cell death in Trypanosoma cruzi by Lippia alba essential oils and their major and synergistic terpenes (citral, limonene and caryophyllene oxide)Flow cytometry analysis of phosphatidylserine externalization of T. cruzi epimastigotes treated with terpenes or Benznidazole. a Negative control (untreated culture). b caryophyllene oxide; c limonene; d citral; e limonene:BNZ; and f apoptosis positive control (15Â day-old parasite culture). The flow cytometry histograms are representative of two independent experimentsBack to article page