Figure 4.

Characteristic distribution patterns of V-ATPases. Anti-ductin staining, WFM, S9 to S10B, A, B, C: representative grey-scale images, A´, B´, C´: corresponding pseudocolour images. V-ATPases are localized in lateral and apical FC membranes, in NC membranes and in the oolemma. Between S9 and S10B, an asymmetric distribution is found in the FC epithelium (see scale bar): V-ATPases are accumulated in the membranes of tFC, mFC, sFC and cFC on the ventral follicle side, and also in PC. In D the characteristic distribution patterns are summarized schematically; high concentrations of V-ATPases are shown in red (staining in Ooc and NC is not considered). For abbreviations, see Figure 1.