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Narcissus white streak virus

From Wikipedia, the free encyclopedia

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

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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

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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

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  1. ^ a b "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

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