Bacillarnavirus

Bacillarnavirus is a genus of viruses in the order Picornavirales. Marine diatoms serve as natural hosts. There are currently three species in this genus, including the type species Rhizosolenia setigera RNA virus 01.[2][3]

Bacillarnavirus
Virus classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Pisuviricota
Class: Pisoniviricetes
Order: Picornavirales
Family: Marnaviridae
Genus: Bacillarnavirus
Type species
Rhizosolenia setigera RNA virus 01
Species[1]
  • Chaetoceros socialis forma radians RNA virus 1
  • Chaetoceros tenuissimus RNA virus 01
  • Rhizosolenia setigera RNA virus 01

Structure

Viruses in Bacillarnavirus are non-enveloped, with icosahedral, spherical, and round geometries, and T=pseudo3 symmetry. The diameter is around 30-32 nm. Genomes are linear and non-segmented, around 8.8-9.5kb in length. The genome has 2 open reading frames.[2]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
BacillarnavirusIcosahedralPseudo T=3Non-envelopedLinearMonopartite

Life cycle

Viral replication is cytoplasmic. Entry into the host cell is achieved by attachment of the virus to host receptors, which mediates endocytosis. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. Marine diatoms serve as the natural host.[2]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
BacillarnavirusMarine diatomsNoneUnknownLysisCytoplasmCytoplasmUnknown
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References
  1. "Virus Taxonomy: 2018b Release" (html). International Committee on Taxonomy of Viruses (ICTV). March 2019. Retrieved 18 March 2019. }}
  2. "Viral Zone". ExPASy. Retrieved 13 August 2015.
  3. ICTV. "Virus Taxonomy: 2014 Release". Retrieved 13 August 2015.
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