Closteroviridae

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| taxon = Closteroviridae

| subdivision_ranks = Genera

| subdivision = See text

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Closteroviridae is a family of viruses.{{cite journal |last1=Fuchs |first1=M |last2=Bar-Joseph |first2=M |last3=Candresse |first3=T |last4=Maree |first4=HJ |last5=Martelli |first5=GP |last6=Melzer |first6=MJ |last7=Menzel |first7=W |last8=Minafra |first8=A |last9=Sabanadzovic |first9=S |last10=ICTV Report Consortium |title=ICTV Virus Taxonomy Profile: Closteroviridae. |journal=The Journal of General Virology |date=April 2020 |volume=101 |issue=4 |pages=364–365 |doi=10.1099/jgv.0.001397 |pmid=32134375|pmc=7414439 |doi-access=free }} Plants serve as natural hosts. There are seven genera in this family.{{cite web|title=Virus Taxonomy: 2024 Release|url=https://ictv.global/taxonomy|publisher=International Committee on Taxonomy of Viruses|access-date=9 March 2025}}{{cite web |title=ICTV Report Closteroviridae |url=http://www.ictv.global/report/closteroviridae}} Diseases associated with this family include: yellowing and necrosis, particularly affecting the phloem.{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/34.html|publisher=ExPASy|access-date=15 June 2015}}

Taxonomy

File:Fpls-08-01672-g001.jpg

Genome type and transmission vector are two of the most important traits used for classification. Ampeloviruses and Closteroviruses have monopartite genomes and are transmitted by pseudococcid mealybugs (and soft scale insects) and aphids respectively. While Criniviruses are bipartite and transmitted by whiteflies.

The family contains the following genera:

Structure

Viruses in the family Closteroviridae are non-enveloped, with flexuous and filamentous geometries. The diameter is around 10–13 nm, with a length of 950–2200 nm. Genomes are linear and non-segmented, bipartite, around 20kb 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. Transmission routes are mechanical.

References

External links

[http://www.ictv.global/report/closteroviridae ICTV Report: Closteroviridae]
[http://viralzone.expasy.org/all_by_species/34.html Viralzone: Closteroviridae]

Category:Virus families

Category:Riboviria