Fig. 3
From: Fluorescent proteins reveal what trypanosomes get up to inside the tsetse fly
Interactions and cytoplasmic exchange between gametes. Red fluorescent (J10 RFP) and green fluorescent (1738 GFP) trypanosomes separately derived from tsetse salivary glands at day 20 post-infection and mixed in vitro. The cluster contains several gametes characterised by their small, pear-shaped bodies and relatively long flagella; the righthand trypanosome (arrowhead) is a dividing epimastigote. The cluster contains five trypanosomes, three of which show both red and green fluorescence (arrows), indicating that they have exchanged cytoplasm. a Phase contrast. b Red and green fluorescence. c Green fluorescence. d Red fluorescence. Scale-bar: 10 μm