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. 2007 Jun 27;27(26):6868–6877. doi: 10.1523/JNEUROSCI.1773-07.2007

Figure 3.

Figure 3.

Filaments linking the SVs to the presynaptic membrane. A–E, Example of virtual sections through the same bouton. A, B, Low-power view with SVs either docked (arrow) or at distance (crossed arrow). Filaments interconnect SVs together (white arrowhead) or with the plasma membrane (black arrowhead). Note the short strands (white arrow) between a docked vesicle (black arrow) and the presynaptic membrane. C–E, Sequence of virtual sections (one of six serial sections) establishing the continuity of a filament (arrowheads) linking a vesicle (crossed arrow) to the presynaptic membrane. F–H, Example of a filament contacting several SVs in virtual sections through another bouton. Five SVs are in contact with a filament (arrowheads). I, 3D reconstruction of the filaments (pink) and the adjacent SVs. The SVs numbered in I are those in F–H. Scale bars: A, B, 200 nm; C–H, 100 nm.