Phaeovirus

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

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]

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]

References