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Trichovirus

Genus of viruses From Wikipedia, the free encyclopedia

Trichovirus
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Trichovirus is a genus of viruses in the order Tymovirales, in the family Betaflexiviridae. Plants, specifically angiosperms such as pome fruits, citrus, and pear, serve as natural hosts for this plant pathogen. There are ten species in this genus.[1][2]

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Taxonomy

The following species are assigned to the genus, listed by scientific name and followed by the exemplar virus of the species:[2]

  • Trichovirus armeniacae, Apricot pseudo-chlorotic leaf spot virus
  • Trichovirus chloropersicae, Peach chlorotic leaf spot virus
  • Trichovirus latensavii, Cherry latent virus 1
  • Trichovirus maculavii, Cherry mottle leaf virus
  • Trichovirus mali, Apple chlorotic leaf spot virus
  • Trichovirus mipersicae, Peach virus M
  • Trichovirus necroacini, Grapevine berry inner necrosis virus
  • Trichovirus persicae, Peach mosaic virus
  • Trichovirus phlomis, Phlomis mottle virus
  • Trichovirus pinovitis, Grapevine Pinot gris virus
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Structure

Viruses in Trichovirus are non-enveloped, with flexuous and filamentous geometries. The diameter is around 10-12 nm, with a length of 640-760 nm. Genomes are linear, around 7.5-8.0kb in length. The genome codes for 3 proteins.[1]

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Life cycle

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. The virus exits the host cell by tubule-guided viral movement. Plants, pome fruits, citrus, and pear serve as the natural host. Transmission routes are grafting.[1] It is transmitted by mites of the family Eriophyidae, requiring a helper virus for transmission.

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References

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