Phaeovirus

<i>Phaeovirus</i>

Phaeovirus

Genus of viruses

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

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Taxonomy

The genus contains the following species:[2]

  • Ectocarpus fasciculatus virus a
  • Ectocarpus siliculosus virus 1
  • Ectocarpus siliculosus virus a
  • Feldmannia irregularis virus a
  • Feldmannia species virus
  • Feldmannia species virus a
  • Hincksia hinckiae virus a
  • Myriotrichia clavaeformis virus a
  • Pilayella littoralis virus 1

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]

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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]

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References

  1. [1]
    "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. [2]
    "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 22 May 2021.
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