Fig. 4

Arrangement of kinetosomes of Syssomonas multiformis. a–f Serial sections (50 nm thickness) of the kinetosomal area, non-flagellar and flagellar basal body with radial fibrils, and submembrane microtubules are visible. g–l Structures nearby the kinetosomes: microtubules run into the cell, submembrane microtubules begin from the dense spot (l) and go below plasmalemma. ds, dense spot; fb, fibril; fbb, flagellar basal body; mct, microtubule; nfbb, non-flagellar basal body; rf, radial fibrils; smmt, submembrane microtubules. Scale bars: a–j, l 0.5, k 1 μm