Figure 1
From: Characterization of a ViI-like Phage Specific to Escherichia coli O157:H7
Transmission electron micrographs of CBA120 particles stained with uranyl acetate (top) or phosphotungstic acid (bottom). Arrows indicate: A, neck with collar; B, reticular structure around the baseplate; C; tail spikes; D, tail tube after sheath contraction.