''Macluravirus'' is a genus of
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 ...
, in the family ''
Potyviridae
''Potyviridae'' is a family of positive-strand RNA viruses that encompasses more than 30% of known plant viruses, many of which are of great agricultural significance. The family has 12 genera and 235 species, three of which are unassigned to ...
''. Plants serve as natural hosts. There are ten species in this genus.
Description
Similarly to other ''Potyviridae'' genera, ''Macluravirus'' is characterised by its flexuous filamentous particles,
inclusion bodies
Inclusion bodies are aggregates of specific types of protein found in neurons, a number of tissue cells including red blood cells, bacteria, viruses, and plants. Inclusion bodies of aggregations of multiple proteins are also found in muscle cells ...
in infected plant cells and a polyprotein genome strategy.
Unlike the other genera it is transmitted by insects. It also has shorter particles (650-660 nm in length). The genomes are monopartite. The name is derived from member species ''
Maclura mosaic virus
''Maclura'' is a genus of flowering plants in the mulberry family, Moraceae. It includes the inedible Osage orange, which is used as mosquito repellent and grown throughout the United States as a hedging plant. It is dioecious, with male a ...
''.
History
The genus was proposed at the ICTV meeting in San Diego in 1998, and subsequently ratified.
[Pringle C.R. & Fauquet, C.M. (1998). ICTV announcement – ratification of new taxonomic proposals. Arch Virol. 143:2504.]
Structure
Viruses in Macluravirus are non-enveloped, with flexuous and Filamentous geometries. The diameter is around 12-15 nm, with a length of 650-660 nm. Genomes are linear and non-segmented, bipartite, around 8.0kb in length.
Life cycle
Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. The virus exits the host cell by tubule-guided viral movement.
Plants serve as the natural host. The virus is transmitted via a vector (insects). Transmission routes are vector and mechanical.
References
External links
Viralzone: ''Macluravirus''ICTV
{{Taxonbar, from=Q18822182
Potyviridae
Viral plant pathogens and diseases
Virus genera