Polemovirus

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Poinsettia latent virus
Virus classification e
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Pisuviricota
Class: Pisoniviricetes
Order: Sobelivirales
Family: Solemoviridae
Genus: Polemovirus
Species:
Poinsettia latent virus
Synonyms
  • Poinsettia cryptic virus[1]

Polemovirus is a genus of viruses. Commercial cultivars of Euphorbia pulcherrima serve as natural hosts. There is only one species in this genus: Poinsettia latent virus.[2][3] Its RNA suggests a replication mode like that of poleroviruses, whereas the coat protein sequence is closely related to that of sobemoviruses.[4]

Structure[]

Genome of Southern bean mosaic virus (SBMV) and Poinsettia latent virus (PnLV)

Viruses in Polemovirus are non-enveloped, with icosahedral geometries, and T=3 symmetry. Genomes are linear and non-segmented.[2]

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

Life cycle[]

Viral replication is cytoplasmic, and is lysogenic. 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. The virus exits the host cell by tubule-guided viral movement. Commercial cultivars of Euphorbia pulcherrima serve as the natural host.[2]

Genus Host details Tissue tropism Entry details Release details Replication site Assembly site Transmission
Polemovirus Plants None Penetration Viral Movement Cytoplasm Cytoplasm Unknown

References[]

  1. ^ "ICTV 9th Report (2011) Polemovirus" (HTML). International Committee on Taxonomy of Viruses. 2011. Retrieved 14 November 2019.
  2. ^ a b c "Viral Zone". ExPASy. Retrieved 15 June 2015.
  3. ^ "Virus Taxonomy: 2020 Release". International Committee on Taxonomy of Viruses (ICTV). March 2021. Retrieved 21 May 2021.
  4. ^ aus dem Siepen, Marc; Pohl, Jens O.; Koo, Bong-Jin; Wege, Christina; Jeske, Holger (June 2005). "Poinsettia latent virus is not a cryptic virus, but a natural polerovirus–sobemovirus hybrid". Virology. 336 (2): 240–250. doi:10.1016/j.virol.2005.03.020. PMID 15892965.

External links[]

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