Narcissus white streak virus

Species of 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

^ ^a ^b "Narcissus (Narcissus spp.)". UC Pest Management Guidelines. Agriculture and Natural Resources, University of California. Integrated pest management program. March 2009.
^ PNW 2014.
^ Berniak 2013.
^ "Daffodil viruses". Royal Horticultural Society. 2014. Retrieved 8 December 2014.
^ 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.