1887

Abstract

is a family of capsidless viruses with positive-sense RNA genomes of 7.3–18.3 kb that possess either a single large open reading frame (ORF) or two ORFs. The ORFs appear to be translated from genomic RNA by non-canonical mechanisms, i.e. internal ribosome entry site- and stop/restart translation. This family includes the genera , , , , , , and . Hypovirids have been detected in ascomycetous and basidiomycetous filamentous fungi and are considered to replicate in host, Golgi apparatus-derived, lipid vesicles that contain virus dsRNA as the replicative form. Some hypovirids induce hypovirulence to host fungi, while others do not. This is a summary of the ICTV report on the family , which is available at www.ictv.global/report/hypoviridae.

Keyword(s): Hypoviridae , ICTV Report and Taxonomy
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License.
Loading

Article metrics loading...

/content/journal/jgv/10.1099/jgv.0.001848
2023-05-16
2024-04-28
Loading full text...

Full text loading...

/deliver/fulltext/jgv/104/5/jgv001848.html?itemId=/content/journal/jgv/10.1099/jgv.0.001848&mimeType=html&fmt=ahah

References

  1. Newhouse JR, Hoch HC, MacDonald WL. The ultrastructure of Endothia parasitica. Comparison of a virulent with a hypovirulent isolate. Can J Bot 1983; 61:389–399 [View Article]
    [Google Scholar]
  2. Fahima T, Wu Y, Zhang L, Van Alfen NK. Identification of the putative RNA polymerase of Cryphonectria hypovirus in a solubilized replication complex. J Virol 1994; 68:6116–6119 [View Article] [PubMed]
    [Google Scholar]
  3. Jacob-Wilk D, Turina M, Van Alfen NK. Mycovirus cryphonectria hypovirus 1 elements cofractionate with trans-Golgi network membranes of the fungal host Cryphonectria parasitica. J Virol 2006; 80:6588–6596 [View Article] [PubMed]
    [Google Scholar]
  4. Hillman BI, Suzuki N. Viruses of the chestnut blight fungus, Cryphonectria parasitica. Adv Virus Res 2004; 63:423–472 [View Article] [PubMed]
    [Google Scholar]
  5. Guo L, Sun L, Chiba S, Araki H, Suzuki N. Coupled termination/reinitiation for translation of the downstream open reading frame B of the prototypic hypovirus CHV1-EP713. Nucleic Acids Res 2009; 37:3645–3659 [View Article] [PubMed]
    [Google Scholar]
  6. Shapira R, Choi GH, Hillman BI, Nuss DL. The contribution of defective RNAs to the complexity of viral-encoded double-stranded RNA populations present in hypovirulent strains of the chestnut blight fungus Cryphonectria parasitica. EMBO J 1991; 10:741–746 [View Article] [PubMed]
    [Google Scholar]
  7. Yuan W, Hillman BI. In vitro translational analysis of genomic, defective, and satellite RNAs of Cryphonectria hypovirus 3-GH2. Virology 2001; 281:117–123 [View Article]
    [Google Scholar]
  8. Nuss DL. Mycoviruses, RNA silencing, and viral RNA recombination. Adv Virus Res 2011; 80:25–48 [View Article] [PubMed]
    [Google Scholar]
  9. Jensen KS, Nuss DL. Mutagenesis of the catalytic and cleavage site residues of the hypovirus papain-like proteases p29 and p48 reveals alternative processing and contributions to optimal viral RNA accumulation. J Virol 2014; 88:11946–11954 [View Article] [PubMed]
    [Google Scholar]
http://instance.metastore.ingenta.com/content/journal/jgv/10.1099/jgv.0.001848
Loading
/content/journal/jgv/10.1099/jgv.0.001848
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error