Fig. 12 in New species of Pavlovophyceae (Haptophyta) and revision of the genera Exanthemachrysis, Rebecca and Pavlova

Fig. 12. Pavlova sp. AC248, flagellar apparatus details of motile cells. A. SEM image of apical view of a swimming cell with a complete F apparatus emerging almost in the centre of a narrow, shallow pit: tomentose S-shaped AF, end-tapered PF and bipartite H inserted between both. Bulging PY on the opposite side. B–E. Negative staining images. B. Details of the base of the F apparatus showing the AF, PF with a tapered end, and H consisting of a proximal part of constant diameter and a distal part of subequal length and smaller diameter. C. Distal rounded part of the AF (with a blistering of the membrane) showing covering of long non-tubular hairs and regular arrangement of KS. D. Central part of the AF showing flat KS with a slight median constriction (black arrows) arranged in several more or less regular layers. E. Proximal part of the AF with multilayered KS, extending after a bare area in the immediate vicinity of the cell. Scale bars: A–B = 1 µm; C = 0.5 µm; D = 50 nm; E = 200 nm.