FIGURE 2.

Electron cryo microscopy and tomographic slices of cell–cell bridges in H. volcanii. Low magnification cryo micrographs of cell–cell bridges targeted for cryoET (upper panels) with the corresponding tomographic slice from a reconstructed tilt series (lower panels). The electron cryo micrographs as well and the corresponding slice through tomograms depict the variety in shape, length and width of the cell–cell bridges. The right panel shows a partially ruptured cell indicated by a red arrow. Scale bars are 1 μm. The cytoplasmic membrane (M), the S-layer (S), and archaella (Ar) are indicated.