Transmission electron microscopy (TEM) images were made as described by Vallino et al. (54 (link)). Briefly, a phage suspension was adsorbed onto carbon and copper-palladium grids coated with Formvar for 3 min. Next, the grids were rinsed with water and negatively stained with 0.5% aqueous uranyl acetate. Samples were visualized using a CM10 transmission electron microscope (Philips, Eindhoven, The Netherlands) at a voltage of 80 kV.
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