“Cavemovirus”的意思、由来-开放百科全书

词条

Cavemovirus

释义

Taxonomy
Structure
Life cycle
References
External links

{{Use dmy dates|date=April 2017}}{{taxobox
| virus_group = vii
| ordo = Ortervirales
| familia = Caulimoviridae
| genus = Cavemovirus
| type_species = Cassava vein mosaic virus
}}Cavemovirus is a genus of viruses, in the family Caulimoviridae order Ortervirales. Plants serve as natural hosts. There are currently only two species in this genus including the type species Cassava vein mosaic virus. Diseases associated with this genus include: vein-clearing or banding mosaic.^[1]^[2]

Taxonomy

Group: ssRNA-RT{{Collapsible list|title= Order: Unassigned
|1={{Collapsible list| framestyle=border:none; padding:1.0em;|title=Family: Caulimoviridae
|1={{hidden begin|title=Genus: Cavemovirus}}

Cassava vein mosaic virus
Sweet potato collusive virus

{{hidden end}}
}}

}}^[2]

Structure

Viruses in Cavemovirus are non-enveloped, with icosahedral geometries, and T=7 symmetry. The diameter is around 50 nm. Genomes are circular and non-segmented. The genome codes for 5 proteins.^[1]

Genus	Structure	Symmetry	Capsid	Genomic arrangement	Genomic segmentation
Cavemovirus	Icosahedral	T=7	Non-enveloped	Circular	Monopartite

Life cycle

Viral replication is nuclear/cytoplasmic. Replication follows the dsDNA(RT) replication model. Dsdna(rt) transcription is the method of transcription. The virus exits the host cell by nuclear pore export, and tubule-guided viral movement.

Plants serve as the natural host. The virus is transmitted via a vector (aphid insects). Transmission routes are mechanical.^[1]

Genus	Host details	Tissue tropism	Entry details	Release details	Replication site	Assembly site	Transmission
Cavemovirus	Plants	None	Viral movement; mechanical inoculation	Viral movement	Nucleus	Cytoplasm	Mechanical inoculation: aphids

References

1. ^¹²{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/121.html|publisher=ExPASy|accessdate=15 June 2015}}
2. ^¹{{cite web|last1=ICTV|title=Virus Taxonomy: 2014 Release|url=http://ictvonline.org/virusTaxonomy.asp|accessdate=15 June 2015}}

External links

Viralzone: Cavemovirus
ICTV

1 : Caulimoviridae

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