Barnaviridae

Barnaviridae is a family of viruses. Cultivated mushroom serve as natural hosts. There are currently only one genus (Barnavirus) and one species in this family: the type species Mushroom bacilliform virus. Diseases associated with this family include: La France disease.[1][2]

Barnaviridae
Virus classification
(unranked): Virus
Realm: Riboviria
Phylum: incertae sedis
Family: Barnaviridae
Genera
  • Barnavirus

Taxonomy

Group: ssRNA(+)

[2]

Structure

Viruses in Barnaviridae are non-enveloped, with icosahedral and Bacilliform geometries, and T=1 symmetry. These viruses are about 50 nm long. Genomes are linear, around 4kb in length. The genome has 43 open reading frames.[1]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
BarnavirusIcosahedralT=1Non-envelopedLinearMonopartite

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. Cultivated mushroom serve as the natural host.[1]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
BarnavirusCultivated mushroom: agaricus bisporusNoneHorizontal; verticalHorizontal: via mycelium; horizontal: basidiosporesCytoplasmCytoplasmHorizontal: via mycelium; horizontal: basidiospores

References
  1. "Viral Zone". ExPASy. Retrieved 12 June 2015.
  2. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 12 June 2015.
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