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Virus classification
Group IV ((+)ssRNA)
Type Species

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.[1][2]


Group: ssRNA(+)



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.[1]

Genus Structure Symmetry Capsid Genomic arrangement Genomic segmentation
Bacillarnavirus Icosahedral Pseudo T=3 Non-enveloped Linear Monopartite

Life cycle[edit]

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.[1]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Bacillarnavirus Marine diatoms None Unknown Lysis Cytoplasm Cytoplasm Unknown


  1. ^ a b c "Viral Zone". ExPASy. Retrieved 13 August 2015.
  2. ^ a b ICTV. "Virus Taxonomy: 2014 Release". Retrieved 13 August 2015.

External links[edit]