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. 1998 May 12;95(10):5746–5751. doi: 10.1073/pnas.95.10.5746

Figure 3.

Figure 3

Sucrose gradient separation of spherical and filamentous virus particles. Spherical particles derived from A/Udorn-infected MDCK cells sediment in fractions 11–13, whereas the faster-sedimenting filamentous particles are found in fractions 8–10 (7). The laboratory-adapted strain A/WSN (WSN), which produces strictly spherical particles, sediments in fractions 11–13. Virus derived from infected BHK-21 or from MDCK cells treated with cytochalasin D (10 μg/ml) also predominantly sediments in fractions 11–13.