Narcissus white streak virus

Narcissus white streak virus (NWSV)
Virus classification
Group:	Group IV ((+)ssRNA)
Order:	Unassigned
Family:	Potyviridae
Species:	Narcissus white streak virus

''Narcissus white streak virus (NWSV) is a plant pathogen of the family Potyviridae which infects plants of the genus Narcissus , and is transmitted by aphids. ^[1] It is among the commonest and most serious of the viral infections that infect narcissi, ^{[2] [3]} but appears to be confined to N. tazetta . ^[4]

Description

This virus causes narrow greenish-purple streaks that turn white to yellow, on the leaves and flower stalk after flowering, and premature senescence, which reduces bulb size and yields. ^[1]

Taxonomy

Despite its importance, there is relatively little phylogenetic information on NWSV and its taxonomy remains unresolved. It has been proposed as a tentative member of the genus Potyvirus , ^[5] but never formally accepted.

References

1. "Narcissus (Narcissus spp.)". UC Pest Management Guidelines. Agriculture and Natural Resources, University of California. Integrated pest management program. March 2009.
2. PNW 2014.
3. Berniak 2013.
4. "Daffodil viruses". Royal Horticultural Society. 2014. Retrieved 8 December 2014.
5. Mowat 1988.

Bibliography

• Rina Kamenetsky, Hiroshi Okubo, ed. (2012). Ornamental Geophytes: From Basic Science to Sustainable Production. CRC Press. ISBN   978-1-4398-4924-8.
• "Daffodil (Narcissus spp.)-Virus Diseases". Pacific Northwest Plant Disease Management Handbook. Oregon State University. 2014. Archived from the original on 17 December 2014. Retrieved 8 December 2014.
• Berniak, Hanna; Komorowska, Beata; Sochacki, Dariusz (1 January 2013). "Detection of Narcissus Latent Virus Isolates Using One-Step Rt-Pcr Assay" (PDF). Journal of Horticultural Research. 21 (1): 11–14. doi: 10.2478/johr-2013-0002 . S2CID   3700211 . Retrieved 12 December 2014.
• "Daffodil viruses". Royal Horticultural Society. 2014. Retrieved 8 December 2014.
• Brunt, A. A. (1970). "Virus diseases of Narcissus" (PDF). Daffodil Tulip Yb. 36: 18–37. Retrieved 8 December 2014.
• Mowat, W.P.; Duncan, G.H.; Dawson, S. (1988). "An appraisal of the identities of Potyviruses infecting Narcissus" . Acta Hort. 234 (234): 207–208. doi:10.17660/ActaHortic.1988.234.24 . Retrieved 8 December 2014.