Electron microscopy of bovine virus diarrhoea virus.
نویسنده
چکیده
Bovine virus diarrhoea virus (BVDV) has been (tentatively) identified by electron microscopy in purified virus preparations, in infected cell cultures and in tissues and cells from infected animals. These studies have revealed a spherical membrane-bound particle with a diameter of 40-60 nm. The membrane is smooth, bilaminar and surrounds a dense or semi-dense core of 20-25 nm. The core particle may be isometric or hexagonal. In studies of the morphogenesis of BVDV in infected cell cultures, it was found that assembly and maturation of the viral particles occur via a condensation process within membrane-bound vesicular organelles, in which the virions subsequently accumulate. Release of the virus occurs when the cell finally lyses and/or via exocytosis. Thus, both with regard to morphogenesis and to morphology, BVDV bears close resemblance to the Flaviviridae.
منابع مشابه
Prevalence of Bovine Viral Diarrhoea Virus antibodies and antigen among the aborted cows in industrial dairy cattle herds in Mashhad area of Iran
The measurement of antibody responses of animals exposed to BVDV either through a natural exposure or an immunization protocol is still a standard procedure. For BVDV, the test formats have been largely limited to ELISA which is a valuable diagnostic test to measure the level of BVDV specific antibodies as well as antigen in blood samples. In the present study, 120 blood samples were collected ...
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ورودعنوان ژورنال:
- Revue scientifique et technique
دوره 9 1 شماره
صفحات -
تاریخ انتشار 1990