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Intranuclear changes in the polyhedrosis of Tipula paludosa (Meig.)

Published online by Cambridge University Press:  06 April 2009

Kenneth M. Smith
Kenneth M. Smith
Affiliation:
Virus Research Unit (Agricultural Research Council), Molteno Institute, University of Cambridge
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Extract

By means of ultra-thin sections for electron microscopy it has been possible to observe intra-nuclear changes in the polyhedrosis of larvae of Tipula paludosa. The virus rods arise in the centres of the greatly enlarged nuclei of blood cells. Thin-walled vesicles, apparently filled with fluid, form round individual virus rods and collect in masses on the inner wall of the nuclear membrane. Crystallization then begins, starting at the edge against the nuclear membrane. The vesicles are gradually compressed round the rods, eventually forming a capsule. Sections through free virus particles show them to be enclosed in a membrane, a second inner membrane round the substance of the rod may also be present.

There appears to be no capsule round the free virus particles such as encloses the virus particles inside the polyhedral crystal.

Type
Research Article
Information
Parasitology , Volume 45 , Issue 3-4 , November 1955 , pp. 482 - 487
Copyright
Copyright © Cambridge University Press 1955

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References

REFERENCES

Bird, F. T. & Whalen, , Mary, M. (1954). Stages in the development of two insect viruses. Canad. J. Microbiol. 1, 170–4.CrossRefGoogle ScholarPubMed
Hughes, K. M. (1953). The development of an insect virus within cells of its host. Hilgardia, 22, 391–406.CrossRefGoogle Scholar
Morgan, C., Ellison, S. A., Rose, H. M. & Moore, D. H. (1954 a). Structure and development of viruses as observed in the electron microscope, I. Herpes simplex virus. J. Exp. Med. 100, 195–202.CrossRefGoogle ScholarPubMed
Morgan, C., Ellison, S. A., Rose, H. M. & Moore, D. H. (1954 b). Structure and development of viruses as observed in the electron microscope, II. Vaccinia and fowl-pox viruses. J. Exp. Med. 100, 301–10.CrossRefGoogle ScholarPubMed
Rennie, J. (1923). Polyhedral disease in Tipula paludosa Meig. Proc. R. phys. Soc. Edinb. 20, 265.Google Scholar
Smith, , Kenneth, M., Wyckoff, R. W. G. & Xeros, N. (1953). Polyhedral virus diseases affecting the larvae of the privet hawk moth (Sphinx ligustri). Parasitology, 42, 287–9.CrossRefGoogle ScholarPubMed
Smith, , Kenneth, M. & Xeros, N. (1953). Development of virus in the cell nucleus. Nature, Lond., 172, 670.CrossRefGoogle ScholarPubMed
Smith, , Kenneth, M. & Xeros, N. (1954 a). An unusual virus disease of a dipterous larva. Nature, Lond., 173, 866.CrossRefGoogle ScholarPubMed
Smith, , Kenneth, M. & Xeros, N. (1954 b). Electron and light microscope studies of the development of the virus rods of insect polyhedroses. Parasitology, 44, 71–80.CrossRefGoogle ScholarPubMed
Xeros, N. & Smith, , Kenneth, M. (1955). Further studies of the development of viruses in the cells of insects. Proc. Inter. Conf. Electr. Microsc. 1954 (in the Press).Google Scholar