THE MACROMOLECULAR PARACRYSTALLINE LATTICE OF INSECT VIRAL POLYHEDRAL BODIES DEMONSTRATED IN ULTRATHIN SECTIONS EXAMINED IN THE ELECTRON MICROSCOPE |
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| Authors: | Councilman Morgan G H Bergold Dan H Moore and Harry M Rose |
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| Institution: | (From the Departments of Microbiology and Medicine, College of Physicians and Surgeons, Columbia University, New York, and the Laboratory of Insect Pathology, Sault Ste. Marie, Canada) |
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| Abstract: | Thin sections of polyhedra obtained from gipsy moth larvae infected with P. dispar virus and from silkworm larvae infected with B. mori virus revealed viral particles contained within a pseudohexagonal, macromolecular, paracrystalline lattice. The gipsy moth virus occurs in bundles of one to eight rods enclosed by a limiting membrane. The particles of the silkworm virus, although generally occurring singly, also possess a limiting membrane. The macromolecules appear to be dense, discrete particles when cross-sectioned and to form dense bands by superimposition when longitudinally or obliquely sectioned at certain angles. Calculations of macromolecular size have been made. |
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