Imaging of Mollivirus particles. (A) Scanning electron microscopy of two isolated particles showing the apex structure. (B) Transmission electron microscopy (TEM) imaging of an ultrathin section of an open particle after fusion of its internal lipid membrane with that of a phagosome. (C) Enlarged view of the viral tegument of a Mollivirus particle highlighting the layer made of a mesh of fibrils (black arrow), resembling Pandoraviruses’ intermediate layer, and the underneath internal membrane (white arrow). Three ∼25-nm interspaced rings are visible around the mature particle. (D) Light microscopy (Nomarski optics 63×) imaging of a lawn of Mollivirus particles, some of...
