Mycoreovirus

Mycoreovirus
Virus classification
Group:	Group III (dsRNA)
Family:	Reoviridae
Subfamily:	Spinareovirinae
Genus:	Mycoreovirus
Type Species
Mycoreovirus 1

Mycoreovirus is a genus of viruses, in the family Reoviridae, in the subfamily Spinareovirinae. Fungi serve as natural hosts. There are currently three species in this genus including the type species Mycoreovirus 1. Diseases associated with this genus include: hypovirulence of the fungal host.^[1][2]

Taxonomy

Group: dsRNA

Order: Unassigned

• Family: Reoviridae

  • Sub-Family: Spinareovirinae

    • Genus: Mycoreovirus 

      • Mycoreovirus 1
      • Mycoreovirus 2
      • Mycoreovirus 3

^[2]

Structure

Viruses in Mycoreovirus are non-enveloped, with icosahedral geometries, and T=13 and T=2 symmetry. The diameter is around 80 nm. Genomes are linear and segmented, around 23kb in length. The genome codes for 12 proteins.^[1]

Genus	Structure	Symmetry	Capsid	Genomic Arrangement	Genomic Segmentation
Mycoreovirus	Icosahedral	T=13, T=2	Non-Enveloped	Linear	Segmented

Life Cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment to host receptors, which mediates endocytosis. 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, and monopartite non-tubule guided viral movement. Fungi serve as the natural host.^[1]

Genus	Host Details	Tissue Tropism	Entry Details	Release Details	Replication Site	Assembly Site	Transmission
Mycoreovirus	Fungi	Mycelium	Cell death; cytoplasmic exchange, sporogenesis; hyphal anastomosis	Cell death; cytoplasmic exchange, sporogenesis; hyphal anastomosis	Cytoplasm	Cytoplasm	Cytoplasmic exchange, sporogenesis; hyphal anastomosis

References

1. "Viral Zone". ExPASy. Retrieved 15 June 2015.
2. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 15 June 2015.

External links

• Viralzone: Mycoreovirus
• ICTV