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J Gen Virol 66 (1985), 627-632; DOI 10.1099/0022-1317-66-3-627
© 1985 Society for General Microbiology

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Small RNA Viruses Co-infecting the Pine Emperor Moth (Nudaurelia cytherea capensis)

Don Hendry{dagger}, Val Hodgson, Rowan Clark and John Newman

Department of Microbiology, Rhodes University, Grahamstown, South Africa 6140

Larvae of the pine emperor moth, Nudaurelia cytherea capensis, naturally infected with Nudaurelia beta virus (NbetaV), contained a second serologically unrelated virus which we have called Nudaurelia {omega} virus (N{omega}V). N{omega}V had a buoyant density of 1.285 g/ml in CsCl and yielded a single major polypeptide of 65000 daltons on gel electrophoresis. The particles of N{omega}V were morphologically distinguishable from those of Nudaurelia viruses described by others, and tryptic peptide analyses indicated that N{omega}V protein was distinct from that of NbetaV and N{varepsilon}V. Both N{omega}V and NbetaV contained a small stable fraction of particles with buoyant densities of about 1.33 g/ml.

Keywords: insect viruses, Nudaurelia beta and {omega} viruses, RNA viruses, small

{dagger} Present address: Biophysics Laboratory, University of Wisconsin, 1525 Linden Drive, Madison, Wis. 53706, U.S.A.

Received 20 June 1984; accepted 31 October 1984.





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Copyright © 1985 by the Society for General Microbiology.