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Alloherpesviridae
''Alloherpesviridae'' is a family of viruses in the order ''Herpesvirales''. This family includes the species that infect fish and amphibians. Phylogenetic studies have confirmed the validity of this family and suggest that it may be divided into two clades: one consisting of viruses from cyprinid and anguillid hosts and the other of viruses from ictalurid, salmonid, acipenserid, and ranid hosts. There are currently 13 species in this family, divided among four genera. A disease associated with this family includes channel catfish disease. Taxonomy ''Alloherpesviridae'' was established as a family in 2005. Genera The family contains the following four genera: * '' Batrachovirus'' * '' Cyprinivirus'' * '' Ictalurivirus'' * ''Salmonivirus ''Salmonivirus'' is a genus of viruses in the order ''Herpesvirales'', in the family '' Alloherpesviridae''. Salmonidae serve as natural hosts. There are three species in this genus. Diseases associated with this genus include: salHV-3: epiz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alloherpesviridae
''Alloherpesviridae'' is a family of viruses in the order ''Herpesvirales''. This family includes the species that infect fish and amphibians. Phylogenetic studies have confirmed the validity of this family and suggest that it may be divided into two clades: one consisting of viruses from cyprinid and anguillid hosts and the other of viruses from ictalurid, salmonid, acipenserid, and ranid hosts. There are currently 13 species in this family, divided among four genera. A disease associated with this family includes channel catfish disease. Taxonomy ''Alloherpesviridae'' was established as a family in 2005. Genera The family contains the following four genera: * '' Batrachovirus'' * '' Cyprinivirus'' * '' Ictalurivirus'' * ''Salmonivirus ''Salmonivirus'' is a genus of viruses in the order ''Herpesvirales'', in the family '' Alloherpesviridae''. Salmonidae serve as natural hosts. There are three species in this genus. Diseases associated with this genus include: salHV-3: epiz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herpesvirales
The ''Herpesvirales'' is an order of dsDNA viruses (Baltimore group I) with animal hosts, characterised by a common morphology consisting of an icosahedral capsid enclosed in a glycoprotein-containing lipid envelope. Common infections in humans caused by members of this order include cold sores, genital herpes, chickenpox, shingles, and glandular fever. ''Herpesvirales'' is the sole order in the class ''Herviviricetes'', which is the sole class in the phylum ''Peploviricota''. Virology Morphology All members of the order have a virion structure that consists of a DNA core surrounded by an icosahedral capsid composed of 12 pentavalent and 150 hexavalent capsomeres (T = 16). The capsid has a diameter of ~110 nanometers (nm) and is embedded in a proteinaceous matrix called the tegument, which in its turn is enclosed by a glycoprotein-containing lipid envelope with a diameter of about 200 nm. The DNA genome is linear and double stranded, with sizes in the range 125–290 kb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batrachovirus
''Batrachovirus'' is a genus of viruses in the order ''Herpesvirales'', in the family ''Alloherpesviridae ''Alloherpesviridae'' is a family of viruses in the order ''Herpesvirales''. This family includes the species that infect fish and amphibians. Phylogenetic studies have confirmed the validity of this family and suggest that it may be divided in ...''. Frogs serve as natural hosts. There are three species in this genus. Diseases associated with this genus include: raHV-1: Lucké tumor (renal adenocarcinoma). Species The genus consists of the following three species: * '' Ranid herpesvirus 1'' * '' Ranid herpesvirus 2'' * '' Ranid herpesvirus 3'' Structure Viruses in ''Batrachovirus'' are enveloped, with icosahedral and spherical to pleomorphic geometries, and T=16 symmetry. The diameter is around 150-200 nm. Genomes are linear and non-segmented, around 220-231kb in length. Life cycle Viral replication is nuclear, and is lysogenic. Entry into the host cell i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyprinivirus
''Cyprinivirus'' is a genus of viruses in the order ''Herpesvirales'', in the family ''Alloherpesviridae''. Freshwater eels serve as natural hosts. There are four species in this genus. Diseases associated with this genus include: hemorrhagic disease. Species The genus consists of the following four species: * '' Anguillid herpesvirus 1'' * '' Cyprinid herpesvirus 1'' * '' Cyprinid herpesvirus 2'' * ''Cyprinid herpesvirus 3 ''Cyprinid herpesvirus 3'' (also CyHV-3, koi herpes virus or KHV) is a species of virus causing a viral disease that is very contagious to the common carp ''Cyprinus carpio''. Pathology It is most commonly found in ornamental koi, which are of ...'' Structure Viruses in ''Cyprinivirus'' are enveloped, with icosahedral and spherical to pleomorphic geometries, and T=16 symmetry. The diameter is around 200 nm. Genomes are linear and non-segmented, around 10kb in length. The genome codes for 136 proteins. Life cycle Viral replication is nuclea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ictalurivirus
''Ictalurivirus'' is a genus of viruses in the order ''Herpesvirales'', in the family ''Alloherpesviridae ''Alloherpesviridae'' is a family of viruses in the order ''Herpesvirales''. This family includes the species that infect fish and amphibians. Phylogenetic studies have confirmed the validity of this family and suggest that it may be divided in ...''. Fish serve as natural hosts. There are three species in this genus. Diseases associated with this genus include: channel catfish disease. Species The genus consists of the following three species: * '' Acipenserid herpesvirus 2'' * '' Ictalurid herpesvirus 1'' * '' Ictalurid herpesvirus 2'' Structure Viruses in ''Ictalurivirus'' are enveloped, with icosahedral and spherical to pleomorphic geometries, and T=16 symmetry. The diameter is around 150-200 nm. Genomes are linear and non-segmented, around 134kb in length. Life cycle Viral replication is nuclear, and is lysogenic. Entry into the host cell is achieved ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmonivirus
''Salmonivirus'' is a genus of viruses in the order ''Herpesvirales'', in the family '' Alloherpesviridae''. Salmonidae serve as natural hosts. There are three species in this genus. Diseases associated with this genus include: salHV-3: epizootic epitheliotropic disease. Species The genus consists of the following three species: * '' Salmonid herpesvirus 1'' * ''Salmonid herpesvirus 2'' * ''Salmonid herpesvirus 3 ''Salmonid herpesvirus 3'' (SalHV-3) is a species of virus in the genus ''Salmonivirus'', family ''Alloherpesviridae'', and order ''Herpesvirales The ''Herpesvirales'' is an order of dsDNA viruses (Baltimore group I) with animal hosts, charact ...'' Structure Viruses in ''Salmonivirus'' are enveloped, with icosahedral and spherical to pleomorphic geometries, and T=16 symmetry. The diameter is around 150-200 nm. Genomes are linear and non-segmented. Life cycle Viral replication is nuclear, and is lysogenic. Entry into the host cell is achieved by attach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmission Electron Microscope
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 sensor such as a scintillator attached to a charge-coupled device. 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 microscopy is a major analytical method in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order ( la, wikt:ordo#Latin, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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