Figure 3From: Free-living ciliates as potential reservoirs for eukaryotic parasites: occurrence of a trypanosomatid in the macronucleus of Euplotes encysticus11–14. Living infected specimens of Euplotes encysticus Ind3 and its parasite Herpetomonas sp. Ind3 stained with ethidium bromide. 11. Host cell with a number of parasites released from the infected macronucleus into the cytoplasm (double arrow). 12. Isolated macronucleus harbouring numerous parasites. 13. Promastigote stages of the parasite in the medium. 14. Kinetoplast (small arrow) and nucleus (large arrow) of the parasite. 11, 12, 14. Fluorescent microscopy. 13. DIC contrast. Bars = 20 μm (11), 15 μm (12), 10 μm (13), 3 μm (14).Back to article page