Figure 1.
Extracellular vesicles produced by Sulfolobus islandicus. (A) EV purification by ultracentrifugation in the 25–50% sucrose gradient. EVs form an opalescent band in the region corresponding to 30–40% sucrose. The figure is modified from Liu et al. (2021b). (B)Transmission electron micrograph of negatively stained EVs. (C) EVs budding from a dividing Sulfolobus cell. Scale bars: 400 nm.