1887

Abstract

Summary

Larvae of the small tortoiseshell butterfly, (Lepidoptera: Nymphalidae), were infected orally with a nuclear polyhedrosis virus. Sections of larvae which had been killed and fixed at intervals after infection were examined by light and electron microscopy. Typical virus development was observed in the fat body cells. However, in the nuclei of infected columnar cells of the mid-gut no incorporation of the virus particles into the polyhedral inclusion body was observed although both virus particles and crystalline polyhedron protein were present. Subsequently virus particles were found in the cytoplasm of these cells between the nucleus and the basal membrane. It is proposed that this unusual virus development is significant in the pathway of infection of a nuclear polyhedrosis virus.

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/content/journal/jgv/10.1099/0022-1317-3-2-221
1968-09-01
2022-10-07
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