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Tunavirus Leonhardeuler
''Tunavirus'' (synonyms ''T1-like phages'', ''T1-like viruses'', ''Tunalikevirus'') is a genus of viruses in the family '' Drexlerviridae''. Bacteria serve as natural hosts. There are 24 species in this genus. Taxonomy The genus contains the following species: * ''Tunavirus ADB2'' * '' Tunavirus BIFF'' * '' Tunavirus chapo'' * '' Tunavirus CLBP3'' * '' Tunavirus DELF2'' * '' Tunavirus IME18'' * '' Tunavirus ISF001'' * '' Tunavirus ISF002'' * '' Tunavirus JMPW1'' * '' Tunavirus JMPW2'' * '' Tunavirus leonhardeuler'' * '' Tunavirus Lg3'' * '' Tunavirus LHE71'' * '' Tunavirus PSf2'' * '' Tunavirus S202'' * '' Tunavirus SA12KD'' * '' Tunavirus SA30RD'' * '' Tunavirus SA32RD'' * '' Tunavirus Sfin1'' * '' Tunavirus Sfin3'' * '' Tunavirus SH2'' * '' Tunavirus SH6'' * '' Tunavirus Shfl1'' * '' Tunavirus T1'' Structure Tunaviruses are nonenveloped, with a head and tail. The head is about 60 nm in diameter. The tail is about 151 nm long, 8 nm wide. It's non-contractile, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virus
A virus is a submicroscopic infectious agent that replicates only inside the living Cell (biology), cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea. Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological entity. 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, more than 16,000 of the millions of List of virus species, virus species have been described in detail. 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 viral particles, or ''virions'', consisting of (i) genetic material, i.e., long ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunavirus SA12KD
''Tunavirus'' (synonyms ''T1-like phages'', ''T1-like viruses'', ''Tunalikevirus'') is a genus of viruses in the family '' Drexlerviridae''. Bacteria serve as natural hosts. There are 24 species in this genus. Taxonomy The genus contains the following species: * ''Tunavirus ADB2'' * '' Tunavirus BIFF'' * '' Tunavirus chapo'' * '' Tunavirus CLBP3'' * '' Tunavirus DELF2'' * '' Tunavirus IME18'' * '' Tunavirus ISF001'' * '' Tunavirus ISF002'' * '' Tunavirus JMPW1'' * '' Tunavirus JMPW2'' * ''Tunavirus leonhardeuler'' * '' Tunavirus Lg3'' * '' Tunavirus LHE71'' * '' Tunavirus PSf2'' * '' Tunavirus S202'' * '' Tunavirus SA12KD'' * '' Tunavirus SA30RD'' * '' Tunavirus SA32RD'' * '' Tunavirus Sfin1'' * '' Tunavirus Sfin3'' * '' Tunavirus SH2'' * '' Tunavirus SH6'' * '' Tunavirus Shfl1'' * '' Tunavirus T1'' Structure Tunaviruses are nonenveloped, with a head and tail. The head is about 60 nm in diameter. The tail is about 151 nm long, 8 nm wide. It's non-contractile, f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aerosol
An aerosol is a suspension (chemistry), suspension of fine solid particles or liquid Drop (liquid), droplets in air or another gas. Aerosols can be generated from natural or Human impact on the environment, human causes. The term ''aerosol'' commonly refers to the mixture of particulates in air, and not to the particulate matter alone. Examples of natural aerosols are fog, mist or dust. Examples of human caused aerosols include particulate air pollutants, mist from the discharge at hydroelectric dams, irrigation mist, perfume from Spray nozzle, atomizers, smoke, dust, Pesticide, sprayed pesticides, and medical treatments for respiratory illnesses. Several types of atmospheric aerosol have a significant effect on Earth's climate: volcanic, desert dust, sea-salt, that originating from biogenic sources and human-made. Volcanic aerosol forms in the stratosphere after an eruption as droplets of sulfuric acid that can prevail for up to two years, and reflect sunlight, lowering tempera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caudovirales
''Caudoviricetes'' is a class of viruses known as tailed viruses and head-tail viruses (''cauda'' is Latin for "tail"). It is the sole representative of its own phylum, ''Uroviricota'' (from ''ouros'' (ουρος), a Greek word for "tailed" + -viricota). Under the Baltimore classification scheme, the ''Caudoviricetes'' are group I viruses as they have double stranded DNA (dsDNA) genomes, which can be anywhere from 18,000 base pairs to 500,000 base pairs in length. The virus particles have a distinct shape; each virion has an icosahedral head that contains the viral genome, and is attached to a flexible tail by a connector protein. The order encompasses a wide range of viruses, many containing genes of similar nucleotide sequence and function. However, some tailed bacteriophage genomes can vary quite significantly in nucleotide sequence, even among the same genus. Due to their characteristic structure and possession of potentially homologous genes, it is believed these viruse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siphoviridae
''Siphoviridae'' was a family of double-stranded DNA viruses in the order '' Caudovirales''. The family ''Siphoviridae'' and order '' Caudovirales'' have now been abolished, with the term siphovirus now used to refer to the morphology of viruses in this former family. Bacteria and archaea serve as natural hosts. The family had 1,166 species, assigned to 366 genera and 22 subfamilies. The characteristic structural features are a non-enveloped head and non-contractile tail. Structure Viruses in the former family ''Siphoviridae'' are non-enveloped, with icosahedral and head-tail geometries ( morphotype B1) or a prolate capsid (morphotype B2), and T=7 symmetry. Their diameters are around 60 nm. Members of this family are also characterized by their filamentous, cross-banded, non-contractile tails, usually with short terminal and subterminal fibers. Genomes are double stranded and linear, around 50 kb in length. Life cycle Viral replication is cytoplasmic. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Committee On Taxonomy Of Viruses
The International Committee on Taxonomy of Viruses (ICTV) authorizes and organizes the taxonomic classification of and the nomenclature for viruses. The ICTV develops a universal taxonomic scheme for viruses, and thus has the means to appropriately describe, name, and classify every virus taxon. The members of the International Committee on Taxonomy of Viruses are considered expert virologists. The ICTV was formed from and is governed by the Virology Division of the International Union of Microbiological Societies. Detailed work, such as identifying new taxa and delimiting the boundaries of species, genera, families, etc. typically is performed by study groups of experts in the families. History The International Committee on Nomenclature of Viruses (ICNV) was established in 1966, at the International Congress for Microbiology in Moscow, to standardize the naming of virus taxa. The ICVN published its first report in 1971. For viruses infecting vertebrates, the first report i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viral Envelope
A viral envelope is the outermost layer of many types of viruses. It protects the genetic material in their life cycle when traveling between host cells. Not all viruses have envelopes. A viral envelope protein or E protein is a protein in the envelope, which may be acquired by the capsid from an infected host cell. Host cell infection process Numerous human pathogenic viruses in circulation are encased in lipid bilayers, and they infect their target cells by causing the viral envelope and cell membrane to fuse. Although there are effective vaccines against some of these viruses, there is no preventative or curative medicine for the majority of them. In most cases, the known vaccines operate by inducing antibodies that prevent the pathogen from entering cells. This happens in the case of enveloped viruses when the antibodies bind to the viral envelope proteins. The membrane fusion event that triggers viral entrance is caused by the viral membrane fusion protein. Many envelo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tunavirus T1
''Tunavirus'' (synonyms ''T1-like phages'', ''T1-like viruses'', ''Tunalikevirus'') is a genus of viruses in the family '' Drexlerviridae''. Bacteria serve as natural hosts. There are 24 species in this genus. Taxonomy The genus contains the following species: * ''Tunavirus ADB2'' * '' Tunavirus BIFF'' * '' Tunavirus chapo'' * '' Tunavirus CLBP3'' * '' Tunavirus DELF2'' * '' Tunavirus IME18'' * '' Tunavirus ISF001'' * '' Tunavirus ISF002'' * '' Tunavirus JMPW1'' * '' Tunavirus JMPW2'' * ''Tunavirus leonhardeuler'' * '' Tunavirus Lg3'' * '' Tunavirus LHE71'' * '' Tunavirus PSf2'' * '' Tunavirus S202'' * ''Tunavirus SA12KD'' * '' Tunavirus SA30RD'' * '' Tunavirus SA32RD'' * '' Tunavirus Sfin1'' * '' Tunavirus Sfin3'' * '' Tunavirus SH2'' * '' Tunavirus SH6'' * '' Tunavirus Shfl1'' * '' Tunavirus T1'' Structure Tunaviruses are nonenveloped, with a head and tail. The head is about 60 nm in diameter. The tail is about 151 nm long, 8 nm wide. It's non-contractile, fl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
