Phaeovirus

Phaeovirus is a genus of viruses, in the family Phycodnaviridae. Alga serve as natural hosts. There are currently nine species in this genus including the type species Ectocarpus siliculosus virus 1.[1][2]

Phaeovirus
Virus classification
(unranked): Virus
Realm: Varidnaviria
Kingdom: Bamfordvirae
Phylum: Nucleocytoviricota
Class: Megaviricetes
Order: Algavirales
Family: Phycodnaviridae
Genus: Phaeovirus
Type species
Ectocarpus siliculosus virus 1

Taxonomy

Group: dsDNA

[2]

Structure

Schematic drawing of a typical Phycodnaviridae virion (cross section and side view)

Viruses in Phaeovirus are enveloped, with icosahedral and Round geometries, and T=169 symmetry. The diameter is around 120-150 nm. Genomes are linear, around 150-350kb in length.[1]

GenusStructureSymmetryCapsidGenomic arrangementGenomic segmentation
PhaeovirusIcosahedralT=169EnvelopedLinearMonopartite

Life cycle

Viral replication is nucleo-cytoplasmic, and is lysogenic. Replication follows the DNA strand displacement model. DNA-templated transcription is the method of transcription. The virus exits the host cell by lysis via lytic phospholipids. Alga serve as the natural host. Transmission routes are passive diffusion.[1]

GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
PhaeovirusAlgaNoneCell receptor endocytosisLysisNucleusCytoplasmPassive diffusion

References

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