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Ackermannviridae
''Ackermannviridae'' is a family of viruses in the order ''Caudovirales''. Gammaproteobacteria in the phylum Pseudomonadota serve as natural hosts. There are 2 subfamilies, 10 genera, and 63 species in the family. Etymology The family's name, ''Ackermann'' is in honor of Hans-Wolfgang Ackermann (1936-2017), a German microbiologist, the suffix ''-viridae'' is the standard suffix for virus families.Hans-W. AckermannLife in science Bacteriophage. 2012 Oct 1; 2(4): 207. doi: 10.4161/bact.23159 . . A curriculum vitae. Taxonomy The following taxa are recognized (-''virinae'' denotes subfamily and -''virus'' denotes genus): * '' Aglimvirinae'' ** '' Agtrevirus'' ** '' Limestonevirus'' * '' Cvivirinae'' ** ''Kuttervirus'' ''incertae sedis ' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ackermannviridae
''Ackermannviridae'' is a family of viruses in the order ''Caudovirales''. Gammaproteobacteria in the phylum Pseudomonadota serve as natural hosts. There are 2 subfamilies, 10 genera, and 63 species in the family. Etymology The family's name, ''Ackermann'' is in honor of Hans-Wolfgang Ackermann (1936-2017), a German microbiologist, the suffix ''-viridae'' is the standard suffix for virus families.Hans-W. AckermannLife in science Bacteriophage. 2012 Oct 1; 2(4): 207. doi: 10.4161/bact.23159 . . A curriculum vitae. Taxonomy The following taxa are recognized (-''virinae'' denotes subfamily and -''virus'' denotes genus): * '' Aglimvirinae'' ** '' Agtrevirus'' ** '' Limestonevirus'' * '' Cvivirinae'' ** ''Kuttervirus'' ''incertae sedis ' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kuttervirus
''Kuttervirus'' is a genus of bacteriophages in the family '' Ackermannviridae''. The genus contains 40 species. Characterization The heads of these phages are icosahedral in nature. Their tails are composed of a collared neck (similar in structure to that of a T4 phage), “a sheath surrounding a tail tube or core, a thin base plate, and an adsorption structure” Notably, a series of unique protrusions can be found stemming from the base plate of these organisms. 3 to 4 thick, rounded prongs (located at the bottom of the base plate) and an equal number of thinner, star-like protrusions (attached to the sides of the baseplate via a stalk) have been observed in members of the genus. Members of the genus are similar in terms of genomics. All species in the genus showed above a 75% commonality in protein composition. While “the gene order is strongly conserved in all seven phages…various functional regions are randomly distributed throughout the genome…”. Functional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caudovirales
''Caudovirales'' is an order of viruses known as the tailed bacteriophages (''cauda'' is Latin for "tail"). Under the Baltimore classification scheme, the ''Caudovirales'' 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 bacteriophages possess a common origin. There are 14 families, 73 subfamilies, 927 genera, and 2,814 species in the order. This makes ''Caudovirales'' the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Incertae Sedis
' () or ''problematica'' is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty at specific taxonomic levels is indicated by ' (of uncertain family), ' (of uncertain suborder), ' (of uncertain order) and similar terms. Examples *The fossil plant '' Paradinandra suecica'' could not be assigned to any family, but was placed ''incertae sedis'' within the order Ericales when described in 2001. * The fossil ''Gluteus minimus'', described in 1975, could not be assigned to any known animal phylum. The genus is therefore ''incertae sedis'' within the kingdom Animalia. * While it was unclear to which order the New World vultures (family Cathartidae) should be assigned, they were placed in Aves ''incertae sedis''. It was later agreed to place them in a separate order, Cathartiformes. * Bocage's longbill, ''Motacilla bocagii' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viruses
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.e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
