Hypoviridae: Difference between revisions
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{{Virusbox |
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| taxon = Hypoviridae |
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| subdivision_ranks = Genera |
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'''''Hypoviridae''''' is a family of linear, positive strand RNA viruses<ref>{{cite book |doi=10.1016/B978-0-12-384684-6.00088-4 |isbn=9780123846846 |chapter=Hypoviridae |title=Virus Taxonomy |pages=1029–1033 |year=2012 |last2=King |first2=Andrew M. Q. }}</ref>[[viruses]]. Fungi serve as natural hosts. There are currently four species in this family, all in the single genus <i>Hypovirus</i><ref name=ICTV>{{cite journal |last1=Suzuki |first1=N |last2=Ghabrial |first2=SA |last3=Kim |first3=KH |last4=Pearson |first4=M |last5=Marzano |first5=SL |last6=Yaegashi |first6=H |last7=Xie |first7=J |last8=Guo |first8=L |last9=Kondo |first9=H |last10=Koloniuk |first10=I |last11=Hillman |first11=BI |last12=Ictv Report |first12=Consortium |title=ICTV Virus Taxonomy Profile: Hypoviridae. |journal=The Journal of General Virology |date=May 2018 |volume=99 |issue=5 |pages=615–616 |doi=10.1099/jgv.0.001055 |pmid=29589826|url=https://uknowledge.uky.edu/plantpath_facpub/82 }}</ref>. Diseases associated with this family include: host virulence reduction.<ref name=ICTV /><ref name=ViralZone>{{cite web|title=Viral Zone|url=http://viralzone.expasy.org/all_by_species/167.html|publisher=ExPASy|accessdate=15 June 2015}}</ref> |
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==Structure== |
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The diameter is around 50-80 nm. Genomes are linear, around 9-13kb in length. The genome has 1 or 2 open reading frames.<ref name=ICTV/><ref name=ViralZone /> ''Hypoviridae'' was the first family of [[virus]]es described that lacked a [[capsid]].<ref name=lackcapsid >{{Cite book | last1 = Dolja | first1 = V. V. | last2 = Koonin | first2 = E. V. | doi = 10.1002/9780470015902.a0023269 | chapter = Capsid-Less RNA Viruses | title = ELS | year = 2012 | isbn = 978-0470016176 | pmid = | pmc = }}</ref> and does not assemble any virion to spread. |
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{| class="wikitable sortable" style="text-align:center" |
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! Genus !! Structure || Symmetry !! Capsid !! Genomic arrangement !! Genomic segmentation |
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|Hypovirus||No true capsid||||Non-enveloped||Linear||Monopartite |
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==Life cycle== |
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Viral replication is cytoplasmic. Replication follows the double-stranded RNA virus replication model. Double-stranded rna virus transcription is the method of transcription. The virus exits the host cell by cell to cell movement. Fungi serve as the natural host.<ref name=ICTV /><ref name=ViralZone /> The virus never leaves its host and probably replicates in pleomorphic host-derived lipid [[Vesicle (biology)|vesicles]]. Transmission is probably dependent on host hyphal anastomosis.<ref name=lackcapsid/> |
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{| class="wikitable sortable" style="text-align:center" |
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! Genus !! Host details !! Tissue tropism !! Entry details !! Release details !! Replication site !! Assembly site !! Transmission |
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|Hypovirus||Fungi||None||Cytoplasmic exchange; hyphal anastomosis||Cytoplasmic exchange; hyphal anastomosis||Cytoplasm||Cytoplasm||Cytoplasmic exchange; hyphal anastomosis |
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==References== |
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{{Reflist}} |
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==External links== |
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* [https://ictv.global/report/hypoviridae '''ICTV Report: <i>Hypoviridae</i>'''] |
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* [http://viralzone.expasy.org/all_by_species/167.html '''Viralzone''': Hypoviridae] |
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{{Baltimore classification}} |
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{{Taxonbar|from=Q10885843}} |
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[[Category:Virus families]] |
[[Category:Virus families]] |
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[[Category:Riboviria]] |
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Latest revision as of 03:43, 6 May 2020
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