Figure 2
(Image from Sun et al. [69] with permission).
FISH image of an I. multifiliis G5 theront labeled with bacterial probe EUB338 and counterstained with DAPI. FISH and DAPI merged confocal image showing endosymbiotic bacteria labeled with probe (red), DAPI-stained micro and macronucleus (blue) and the organelle of Lieberkühn (arrow). Scale bar = 10 µm.