|
Thaspiviridae
''Thaspiviridae'' is a family of spindle-shaped viruses that is not assigned to any higher taxonomic ranks. The family contains a single genus, ''Nitmarvirus'', which contains a single species, ''Nitmarvirus NSV1''. Members of the family ''Thaspiviridae'' have linear dsDNA genomes of 27 to 29 kbp and are the first viruses known to infect mesophilic ammonia-oxidizing archaea of the phylum Thaumarchaeota. The virion of Nitrosopumilus spindle-shaped virus 1 (NSV1) is 64±3 nm in diameter and 112±6 nm in length with a short tail at one pole. The spindle-shape morphology of the virion is very similar to those of members of the families ''Fuselloviridae'' and ''Halspiviridae ''Halspiviridae'' is a family of viruses that consists of a single genus, ''Salterprovirus'', which consists of a single recognised species; ''Salterprovirus His1'' (hereafter, 'His1'). This virus was isolated from hypersaline water in Australi ...'', which infect hyperthermophilic and hyperhalophilic ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virus
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Since Dmitri Ivanovsky's 1892 article describing a non-bacterial pathogen infecting tobacco plants and the discovery of the tobacco mosaic virus by Martinus Beijerinck in 1898,Dimmock p. 4 more than 9,000 virus species have been described in detail of the millions of types of viruses in the environment. Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity. The study of viruses is known as virology, a subspeciality of microbiology. When infected, a host cell is often forced to rapidly produce thousands of copies of the original virus. When not inside an infected cell or in the process of infecting a cell, viruses exist in the form of independent particles, or ''virions'', consisting of (i) the genetic material, i. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Taxonomic Rank
In biological classification, taxonomic rank is the relative level of a group of organisms (a taxon) in an ancestral or hereditary hierarchy. A common system consists of species, genus, family (biology), family, order (biology), order, class (biology), class, phylum (biology), phylum, kingdom (biology), kingdom, domain (biology), domain. While older approaches to taxonomic classification were phenomenological, forming groups on the basis of similarities in appearance, organic structure and behaviour, methods based on genetic analysis have opened the road to cladistics. A given rank subsumes under it less general categories, that is, more specific descriptions of life forms. Above it, each rank is classified within more general categories of organisms and groups of organisms related to each other through inheritance of phenotypic trait, traits or features from common ancestors. The rank of any ''species'' and the description of its ''genus'' is ''basic''; which means that to iden ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fuselloviridae
''Fuselloviridae'' is a family of viruses. Sulfolobus species, specifically shibatae, solfataricus, and islandicus, serve as natural hosts. There are two genera and nine species in the family. The ''Fuselloviridae'' are ubiquitous in high-temperature (≥70 °C), acidic (pH ≤4) hot spring A hot spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow bodies of magma (molten rock) or by c ...s around the world. Taxonomy The family contains the following genera and species: * '' Alphafusellovirus'' ** '' Sulfolobus spindle-shaped virus 1'' ** '' Sulfolobus spindle-shaped virus 2'' ** '' Sulfolobus spindle-shaped virus 4'' ** '' Sulfolobus spindle-shaped virus 5'' ** '' Sulfolobus spindle-shaped virus 7'' ** '' Sulfolobus spindle-shaped virus 8'' ** '' Sulfolobus spindle-shaped virus 9'' * '' Betafusellovirus'' ** '' Acidianus s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Halspiviridae
''Halspiviridae'' is a family of viruses that consists of a single genus, ''Salterprovirus'', which consists of a single recognised species; ''Salterprovirus His1'' (hereafter, 'His1'). This virus was isolated from hypersaline water in Australia and was able to be cultured on the halophilic archaeon ''Haloarcula hispanica''. Like many other archaeoviruses, His1 has an approximately limoniform (lemon-shaped) virion. Etymology The family name, ''Halspiviridae'', is derived from halophilic and spindle-shaped, in reference to the habitat and virion morphology, respectively. The genus name, ''Salterprovirus'', is derived from salty terminal protein virus, as the linear dsDNA genome has proteins attached to the 5′ termini. Taxonomy The virion has a spindle-shaped morphology and is similar in shape to that of viruses infecting thermophilic archaea, the ''Fuselloviridae'', and His1 was originally described as a probable member of that group. However, it was later found that ther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Fuselloviridae")