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Iltovirus Cacatuidalpha2
''Iltovirus'' is a genus of viruses in the order ''Herpesvirales'', in the family ''Herpesviridae'', in the subfamily ''Alphaherpesvirinae''. Birds, galliformes, galliform birds, psittacinae, psittacine birds, chickens, turkey (bird), turkeys, and quail serve as natural hosts. Diseases associated with this genus include: acute respiratory diseases: gaHV-1: infectious Laryngitis, laryngotracheitis; psHV-1: Pacheco's disease. Species The genus consists of the following species: * ''Iltovirus cacatuidalpha2'' * ''Iltovirus gallidalpha1'', also called Gallid alphaherpesvirus 1 * ''Iltovirus psittacidalpha1'', also called Psittacid alphaherpesvirus 1 * ''Iltovirus psittacidalpha5'' Structure Viruses in ''Iltovirus'' are enveloped, with icosahedral, spherical to pleomorphic, and round geometries, and T=16 symmetry. The diameter is around 120-200 nm. Genomes are linear and non-segmented, around 150kb in length. Life cycle Viral replication is nuclear, and is lysogenic. Entry in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmission Electron Microscopy
Transmission electron microscopy (TEM) is a microscopy technique in which a beam of electrons is transmitted through a specimen to form an image. The specimen is most often an ultrathin section less than 100 nm thick or a suspension on a grid. An image is formed from the interaction of the electrons with the sample as the beam is transmitted through the specimen. The image is then magnified and focused onto an imaging device, such as a fluorescent screen, a layer of photographic film, or a detector such as a scintillator attached to a charge-coupled device or a direct electron detector. Transmission electron microscopes are capable of imaging at a significantly higher resolution than light microscopes, owing to the smaller de Broglie wavelength of electrons. This enables the instrument to capture fine detail—even as small as a single column of atoms, which is thousands of times smaller than a resolvable object seen in a light microscope. Transmission electron micr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
