Cherry rasp leaf virus

Cherry rasp leaf virus (CRLV)
Virus classification
Group: Group IV ((+)ssRNA)
Order: Picornavirales
Family: Secoviridae
Genus: Cheravirus
Species: Cherry rasp leaf virus
Synonyms
  • flat apple virus

Cherry rasp leaf virus (CRLV) is a plant pathogenic virus of the order Picornavirales, family Secoviridae, subfamily Comovirinae, genus Cheravirus.[1]

Causes

CRLV can be transmitted a nematode, Xiphinema americana; mechanical inoculation; transmitted by grafting; transmitted by seed (10–20%).[2]

Symptoms

Leaves become studded with projections or enations between the lateral veins and all along the midrib. As a result, the leaves become deformed and folded, looking very narrow. The face of the leaf has a bumpy texture as a result of the enations on the underside.

Initial infections begin at the lower branches and patches of the tree will show symptoms. Lateral (tree-to-tree) infection is slow and fruit production is reduced. Severe infection may result in the death of the tree.[3]

References

  1. ↑ http://www.virology.net/Big_Virology/BVFamilyGroup.html Family Groups—The Baltimore Method
  2. ↑ ICTVdB—The Universal Virus Database: 00.018.0.83.003 Cherry rasp leaf virus
  3. ↑ USDA-ARS. 1976. Virus Diseases and Noninfectious Diseases of Stone Fruits in North America. Agriculture Handbook 437.
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