Phaeovirus


Phaeovirus is a genus of viruses, in the family Phycodnaviridae. Algae serve as natural hosts. There are three species in this genus.

Taxonomy

The genus contains the following species, listed by scientific name and followed by the exemplar virus of the species:Phaeovirus feldmanniae, Ectocarpus siliculosus virus 1Phaeovirus irregularis, Feldmannia irregularis virus aPhaeovirus unasiliculosus, Feldmannia species virus

Structure

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.
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.
GenusHost detailsTissue tropismEntry detailsRelease detailsReplication siteAssembly siteTransmission
PhaeovirusAlga-Cell receptor endocytosisLysisNucleusCytoplasmPassive diffusion