Fig. 4: Transmission electron microscope (TEM) images of the LINA filaments excreted by the wild-type Lp VT1065 strain.

In each panel, white arrows indicate the LINA filaments. A–C TEM images of various filaments including flagella and LINA filaments. D Stitching of three TEM images of long LINA filaments. E, F High-resolution images of the LINA filaments showing their “pearl chain” like structure. Scale bars represent 100 nm (A–D) and 20 nm (E and F).