Family: Cactaceae Ornamental
Rattail cactus necrosis-associated virus (RCNaV)
Taxonomic position
Genus: Tobamovirus Family: Virgaviridae
Geographical distribution
RCNaV infection in plants of Aporcactus flagelliformis was reported from Korea (Kim et al. 2012).
Symptoms and host(s)
The virus-infected rattail cactus plants exhibit necrosis symptoms.
Transmission
The virus is mechanically sap-transmissible and produced necrotic local lesions on Gomphrena globosa, Chenopodium amaranticolor, C. quinoa, Datura stramonium, Nicotiana benthamiana, and N. rustica. Systemic necrosis symptoms were produced on Nicotiana benthamiana. The virus is also transmissible by contact between plants. There is no known vector for this virus.
Virion properties and genome
The virions are rod shaped and 18 nm in diameter and have a predominant length of 300–310 nm. The genome is a monopartite, linear, positive-sense ssRNA of 6,506 nt and contained four open reading frames coding for proteins of M(r) 128 kDa...
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Reference
Adams MJ, Adkins S, Bragard C, Gilmer D, Li D, MacFarlane SA, Wong S-M, Melcher U, Ratti C, Ryu KH, ICTV Report Consortium (2017) ICTV virus taxonomy profile: Virgaviridae. J Gen Virol 98:1999–2000
Kim NR, Hong JS, Song YS, Chung BN, Park JW, Ryu KH (2012) The complete genome sequence of a member of a new species of tobamovirus (Rattail cactus necrosis-associated virus) isolated from Aporcactus flagelliformis. Arch Virol 157:185–187
Zaitlin M (2011) Tobamovirus. In: Tidona C, Darai G (eds) The Springer index of viruses. Springer, New York. https://doi.org/10.1007/978-0-387-95919-1
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Sastry, K.S., Mandal, B., Hammond, J., Scott, S.W., Briddon, R.W. (2019). Aporcactus flagelliformis (Rattail cactus). In: Encyclopedia of Plant Viruses and Viroids. Springer, New Delhi. https://doi.org/10.1007/978-81-322-3912-3_68
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DOI: https://doi.org/10.1007/978-81-322-3912-3_68
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