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Virus classification Edit this classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Pisuviricota
Class: Pisoniviricetes
Order: Sobelivirales
Family: Solemoviridae
Genus: Polerovirus

See text

Polerovirus is a genus of viruses, in the family Solemoviridae. Plants serve as natural hosts. There are 26 species in this genus. Diseases associated with this genus include: PLRV causes prominent rolling of the leaves of potato and a stiff upright habit of the plants; necrosis of the phloem and accumulation of carbohydrates in the leaves.[1][2]


Viruses in Polerovirus are non-enveloped, with icosahedral and Spherical geometries, and T=3 symmetry. The diameter is around 23 nm. Genomes are linear and non-segmented, around 5.3-5.7kb in length.[1]

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


The following species are recognized:

Life cycle[edit]

Viral replication is cytoplasmic. Entry into the host cell is achieved by penetration into the host cell. Replication follows the positive stranded RNA virus replication model. Positive stranded RNA virus transcription is the method of transcription. Translation takes place by leaky scanning, −1 ribosomal frameshifting, and suppression of termination. The virus exits the host cell by tubule-guided viral movement. Plants serve as the natural host. The virus is transmitted via a vector (plrv: myzus persicae). Transmission routes are vector and mechanical.[1]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Polerovirus Plants Phloem Viral movement; mechanical inoculation Viral movement Cytoplasm Cytoplasm Mechanical inoculation: aphids


  1. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
  2. ^ "Virus Taxonomy: 2022 Release". International Committee on Taxonomy of Viruses (ICTV). March 2023. Retrieved 10 August 2023.

External links[edit]