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Transmission electron micrographs of SSV particles. Supernatants from cultures of S. solfataricus strain GΘ transformed with (A) pAJC97, (B) SSV-ΔVP2, (C) SSV-Δd244, were negatively stained with uranyl acetate and observed with a JEOL 100CX transmission electron microscope. Bar represents 0.2 μm (B) or 0.5 μm (A,C).
