Fig. 4: Reconstruction of Profftella cells that were not fully contained within the analysed cubes.

A–F Due to the data size limitations, some of the entire cells could not be fully reconstructed, but the six incomplete cells longer than 20 μm are shown. The cells are ordered by increasing length. Cross-sectional images of the block showing the ends of the Profftella cells are also included. For each cell, the centerline tracing, the cell length (L, not the full length), and the number of tubes (N) are indicated with the corresponding reconstructed images. The arrowhead indicates the branching point of the cell in F. G Magnified view of the branching point of F. H One of the tubes at the branching point extends on both branches.