Fig. 6. Confocal images of DAPI-stained nematocysts (false colors). (A) Desmoneme, (B) isorhiza, (C,D) stenotele. The coloured images are single optical sections. The approximate positions of the sections shown in D are indicated by numbers next to the capsule in C. In A-C the black-and-white images are projections made from the full stack of optical sections. The colour scale has been inverted to permit better visualisation of the tubule within the capsule. (E,F) Fluorescence images of DAPI-stained stenoteles that have been extensively washed (see text for details). (E) View from the side of the capsule; (F) view down the long axis of the capsule. The three regions of DAPI-stained pG are located within the tubule lumen at the base of the stylets. Bars, 2 µm (A-B); 5 µm (C-F).

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