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Nanovirus
''Nanovirus'' is a genus of viruses, in the family ''Nanoviridae''. Legume plants serve as natural hosts. There are 11 species in this genus. Diseases associated with this genus include: stunting, severe necrosis and early plant death. Taxonomy The following 11 species are assigned to the genus: *''Black medic leaf roll virus'' *''Cow vetch latent virus'' *''Faba bean necrotic stunt virus'' *''Faba bean necrotic yellows virus'' *''Faba bean yellow leaf virus'' *'' Milk vetch dwarf virus'' *'' Parsley severe stunt associated virus'' *'' Pea necrotic yellow dwarf virus'' *'' Pea yellow stunt virus'' *'' Sophora yellow stunt virus'' *''Subterranean clover stunt virus Subterranean(s) or The Subterranean(s) may refer to: * Subterranea (geography), underground structures, both natural and man-made Literature * Subterranean (novel), ''Subterranean'' (novel), a 1998 novel by James Rollins * ''Subterranean Magaz ...'' Structure and genome Virions in the genus ''Nanovirus'' are no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanovirus Genome
''Nanovirus'' is a genus of viruses, in the family ''Nanoviridae''. Legume plants serve as natural hosts. There are 11 species in this genus. Diseases associated with this genus include: stunting, severe necrosis and early plant death. Taxonomy The following 11 species are assigned to the genus: *''Black medic leaf roll virus'' *''Cow vetch latent virus'' *''Faba bean necrotic stunt virus'' *''Faba bean necrotic yellows virus'' *''Faba bean yellow leaf virus'' *'' Milk vetch dwarf virus'' *'' Parsley severe stunt associated virus'' *'' Pea necrotic yellow dwarf virus'' *'' Pea yellow stunt virus'' *'' Sophora yellow stunt virus'' *''Subterranean clover stunt virus Subterranean(s) or The Subterranean(s) may refer to: * Subterranea (geography), underground structures, both natural and man-made Literature * ''Subterranean'' (novel), a 1998 novel by James Rollins * ''Subterranean Magazine'', an American fa ...'' Structure and genome Virions in the genus ''Nanovirus'' are no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nanoviridae
''Nanoviridae'' is a family of viruses. Plants serve as natural hosts. There are currently 12 species in this family, divided among 2 genera and one unassigned species. Diseases associated with this family include: stunting. Their name is derived from the Greek word νᾶνος (''nanos''; dwarf), because of their small genome and their stunting effect on infected plants. Taxonomy The recognized genera are: * ''Babuvirus'' * ''Nanovirus'' The unassigned species is ''Coconut foliar decay virus''. Virus structure and genome Viruses in the family ''Nanoviridae'' are non-enveloped, with icosahedral and round geometries, and T=1 symmetry. The diameter is around 18-19 nm. The genome is composed of a multiple segments of single stranded circular DNA each ~1 kilobase in length (about 81 kb in total length). There between 6 and 11 circular segments depending on the genus. The segments each encode a single protein. There is a putative stem loop structure in the non-coding region ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Faba Bean Necrotic Yellows Virus
Faba bean necrotic yellows virus (FBNYV) is a Nanovirus disease of legumes. Range Algeria, Egypt, Eritrea, Ethiopia, Libya, Morocco, Sudan, Tunisia, Azerbaijan, Iran, Iraq, Jordan, Lebanon, Pakistan, Syria, Turkey, Yemen, Spain and Balearic Islands. Genome FBNYV is one of the circular Rep-encoding ssDNA viruses, and so shares the characteristics of circular genome, replication initiation by Rep proteins, ssDNA composition. Replication is presumed to occur through the rolling circle replication (RCR) process. Vega-Rocha et al. 2007 disclose the structure of the FBNYV Rep's HUH endonuclease domain. Virulence factors FBNYV produces the small protein which binds to SKP1 and Prb proteins in plants. Timchenko et al. 2006 demonstrate that Clink is not necessary to produce symptoms in ''Vicia faba'' in laboratory conditions. However they do find it to be highly conserved, 98% of successfully infected plants testing positive for Clink DNA. Timchenko conclude it must be favourab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Faba Bean Necrotic Stunt Virus
''Faba bean necrotic stunt virus'' (FBNSV) is a pathogenic plant virus of the family ''Nanoviridae''. Its infection cycle is remarkable because it has eight segments, each carried in a different particle, that can replicate independently in different host cells and then reassemble outside of the host cells into new complete virion 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 ...s. References {{Taxonbar, from=Q18971894 Viral plant pathogens and diseases Nanoviridae ... [...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] |
Legume
A legume () is a plant in the family Fabaceae (or Leguminosae), or the fruit or seed of such a plant. When used as a dry grain, the seed is also called a pulse. Legumes are grown agriculturally, primarily for human consumption, for livestock forage and silage, and as soil-enhancing green manure. Well-known legumes include beans, soybeans, chickpeas, peanuts, lentils, lupins, mesquite, carob, tamarind, alfalfa, and clover. Legumes produce a botanically unique type of fruit – a simple dry fruit that develops from a simple carpel and usually dehisces (opens along a seam) on two sides. Legumes are notable in that most of them have symbiotic nitrogen-fixing bacteria in structures called root nodules. For that reason, they play a key role in crop rotation. Terminology The term ''pulse'', as used by the United Nations' Food and Agriculture Organization (FAO), is reserved for legume crops harvested solely for the dry seed. This excludes green beans and green peas, which a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Medic Leaf Roll Virus
Black is a color which results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white have often been used to describe opposites such as good and evil, the Dark Ages versus Age of Enlightenment, and night versus day. Since the Middle Ages, black has been the symbolic color of solemnity and authority, and for this reason it is still commonly worn by judges and magistrates. Black was one of the first colors used by artists in Neolithic cave paintings. It was used in ancient Egypt and Greece as the color of the underworld. In the Roman Empire, it became the color of mourning, and over the centuries it was frequently associated with death, evil, witches, and magic. In the 14th century, it was worn by royalty, clergy, judges, and government officials in much of Europe. It became the color worn by English romantic poets, businessmen an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
