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Prymnesiovirus
''Prymnesiovirus'' is a genus of viruses, in the family ''Phycodnaviridae''. Alga serve as natural hosts. There is only one species in this genus: ''Chrysochromulina brevifilum virus PW1'' (CbV-PW1). It infects ''Haptolina brevifila'', basionym: ''Chrysochromulina ''Chrysochromulina'' is a genus of haptophytes. This phytoplankton is distributed globally in brackish and marine waters across approximately 60 known species. All ''Chrysochromulina'' species are phototrophic, however some have been shown to ... brevifilum'' (Edvardsen et al., 2011).S.F. Mirza ''et al''Isolation and characterization of a virus infecting the freshwater algae ''Chrysochromulina parva', in: Virology Volume 486, December 2015, Pages 105-115, doi:10.1016/j.virol.2015.09.005. See Fig. 4. Structure Viruses in ''Prymnesiovirus'' are enveloped, with icosahedral and round geometries, and T=169 symmetry. The diameter is around 100-170 nm. Genomes are linear, around 120-485kb in length. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phycodnaviridae
''Phycodnaviridae'' is a family of large (100–560 kb) double-stranded DNA viruses that infect marine or freshwater eukaryotic algae. Viruses within this family have a similar morphology, with an icosahedral capsid (polyhedron with 20 faces). As of 2014, there were 33 species in this family, divided among 6 genera. This family belongs to a super-group of large viruses known as nucleocytoplasmic large DNA viruses. Evidence was published in 2014 suggesting that specific strains of ''Phycodnaviridae'' might infect humans rather than just algal species, as was previously believed. Most genera under this family enter the host cell by cell receptor endocytosis and replicate in the nucleus. ''Phycodnaviridae'' play important ecological roles by regulating the growth and productivity of their algal hosts. Algal species such ''Heterosigma akashiwo'' and the genus ''Chrysochromulina'' can form dense blooms which can be damaging to fisheries, resulting in losses in the aquaculture ind ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phycodnaviridae Virion
''Phycodnaviridae'' is a family of large (100–560 kb) double-stranded DNA viruses that infect marine or freshwater eukaryotic algae. Viruses within this family have a similar morphology, with an icosahedral capsid (polyhedron with 20 faces). As of 2014, there were 33 species in this family, divided among 6 genera. This family belongs to a super-group of large viruses known as nucleocytoplasmic large DNA viruses. Evidence was published in 2014 suggesting that specific strains of ''Phycodnaviridae'' might infect humans rather than just algal species, as was previously believed. Most genera under this family enter the host cell by cell receptor endocytosis and replicate in the nucleus. ''Phycodnaviridae'' play important ecological roles by regulating the growth and productivity of their algal hosts. Algal species such ''Heterosigma akashiwo'' and the genus ''Chrysochromulina'' can form dense blooms which can be damaging to fisheries, resulting in losses in the aquaculture ind ... [...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] |
Chrysochromulina
''Chrysochromulina'' is a genus of haptophytes. This phytoplankton is distributed globally in brackish and marine waters across approximately 60 known species. All ''Chrysochromulina'' species are phototrophic, however some have been shown to be mixotrophic, including exhibiting phagotrophy under certain environmental conditions. The cells are small, characterized by having scales, and typically observed using electron microscopy. Some species, under certain environmental conditions have been shown to produce toxic compounds that are harmful to larger marine life including fish. Morphology Individuals of the genus are known to grow between 3.0 and 13.0 µm in length, with the largest being those of the ''Chrysochromulina polylepis'' species. The cell surface is covered with plate-like scales, with additional layers of different scale types often overlaid. As is characteristic of all haptophytes, members of the genus ''Chrysochromulina'' possess two flagella and a unique ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
