Fig. 1

(quarter page, single column): Typical fried egg-shaped colony of Mycoplasma. a Afadé, b B237. Transmission electron microscopy of Afadé (c) and B237 (d). Ultrathin sections reveal cell bodies (CB) and thin protrusions (black arrowheads, top left). Multiple protrusions can originate from one cell body (top right). Multiple constrictions along protrusions lead to a necklace-like appearance in some regions (bottom left, white arrowheads). Branching along the protrusions occurs (bottom right, asterisk)