Ultrastructural study of myxoma virus morphogenesis

Ultrastructural study of myxoma virus morphogenesis Poxviruses are among the largest and most complex viruses known. Vaccinia virus, the prototype of the family Poxviridae , has been studied much more than myxoma virus. The aim of this work was to have a better knowledge about myxoma virus morphogenesis. The characterization of the main stages of MV morphogenesis was achieved by ultrastructural and immunological analysis. Specific antibodies were raised against M022L and M071L, two envelope proteins of extracellular enveloped virus and intracellular mature virus, respectively. The main stages of assembly were similar to those seen with other poxviruses, and the duration of the whole replication cycle was estimated to be around 16 h, longer than what was described for vaccinia virus. Morphological changes of infected cells were associated with the development of long cellular projections and enlarged microvilli. Intracellular enveloped viruses are associated with the cytoskeleton to move through the cell. Unlike earlier studies, as many cell-associated enveloped viruses as intracellular enveloped viruses were observed in relation with specialized microvilli, although these structures were rarely noticed. Finally, an unusual spreading process was observed, which uses cytoplasmic corridors. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Ultrastructural study of myxoma virus morphogenesis

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Publisher
Springer-Verlag
Copyright
Copyright © 2006 by Springer-Verlag
Subject
Biomedicine; Medical Microbiology; Virology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-006-0791-2
Publisher site
See Article on Publisher Site

Abstract

Poxviruses are among the largest and most complex viruses known. Vaccinia virus, the prototype of the family Poxviridae , has been studied much more than myxoma virus. The aim of this work was to have a better knowledge about myxoma virus morphogenesis. The characterization of the main stages of MV morphogenesis was achieved by ultrastructural and immunological analysis. Specific antibodies were raised against M022L and M071L, two envelope proteins of extracellular enveloped virus and intracellular mature virus, respectively. The main stages of assembly were similar to those seen with other poxviruses, and the duration of the whole replication cycle was estimated to be around 16 h, longer than what was described for vaccinia virus. Morphological changes of infected cells were associated with the development of long cellular projections and enlarged microvilli. Intracellular enveloped viruses are associated with the cytoskeleton to move through the cell. Unlike earlier studies, as many cell-associated enveloped viruses as intracellular enveloped viruses were observed in relation with specialized microvilli, although these structures were rarely noticed. Finally, an unusual spreading process was observed, which uses cytoplasmic corridors.

Journal

Archives of VirologySpringer Journals

Published: Nov 1, 2006

References

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