Odontoglossum ringspot virus

Odontoglossum ringspot virus (ORSV) is a plant pathogenic virus that belongs to the family Virgaviridae. It is one of the most common viruses affecting cultivated orchids, perhaps second only to the Cymbidium mosaic virus.[1] It causes spots on leaves and colored streaks on flowers.[1] If a plant is also infected with the Cymbidium mosaic virus, it can lead to a condition called blossom brown necrotic streak.[1]

Odontoglossum ringspot virus
Virus classification
(unranked): Virus
Realm: Riboviria
Kingdom: Orthornavirae
Phylum: Kitrinoviricota
Class: Alsuviricetes
Order: Martellivirales
Family: Virgaviridae
Genus: Tobamovirus
Species:
Odontoglossum ringspot virus
Synonyms
  • Tobacco mosaic virus—orchid strain

Phylogenetics

Its genome has been sequenced and contains approximately 6600 nucleotides organized into four open reading frames.[2][3] Its similarity to other tobamoviruses can be seen from the genetic data and the (limited) ability of a Tobacco mosaic virus modified to contain ORSV movement protein to infect tobacco.[4] However, only about 60% of the nucleotides in ORSV are identical with Tobacco mosaic virus.[3]

gollark: Aren't there intracellular hierarchies in slime molds and such? The mitochondria are forced to make energy for the benefit of all the other organelles. The system is centrally planned by the DNA and whatever.
gollark: It is, at least, better than current school systems in many ways.
gollark: Probably contributed to my general weirdness but that's not particularly a bad thing.
gollark: I've had mostly unsupervised internet access for much of my life and I don't think it's caused any *horrible* problems.
gollark: I'm sure it already has been ported, if not several times.

References
  1. JS Hu; S Ferreira; M Wang; MQ Xu (1993), "Detection of cymbidium mosaic virus, odontoglossum ringspot virus, tomato spotted wilt virus, and Potyviruses Infecting Orchids in Hawaii" (PDF), Plant Disease, 77 (5): 464–468, doi:10.1094/PD-77-0464, archived from the original (PDF) on 2009-05-15
  2. Chng, Cg; Wong, Sm; Mahtani, Ph; Loh, Cs; Goh, Cj; Kao, Mc; Chung, Mc; Watanabe, Y (Jun 1996), "The complete sequence of a Singapore isolate of odontoglossum ringspot virus and comparison with other tobamoviruses.", Gene, 171 (2): 155–61, doi:10.1016/0378-1119(96)00046-7, ISSN 0378-1119, PMID 8666266
  3. Ikegami, M; Isomura, Y; Matumoto, Y; Chatani, M; Inouye, N (1995), "The complete nucleotide sequence of odontoglossum ringspot virus (Cy-1 strain) genomic RNA.", Microbiology and Immunology, 39 (12): 995–1001, doi:10.1111/j.1348-0421.1995.tb03289.x, ISSN 0385-5600, PMID 8789059
  4. Fenczik, Ca; Padgett, Hs; Holt, Ca; Casper, Sj; Beachy, Rn (Sep 1995), "Mutational analysis of the movement protein of odontoglossum ringspot virus to identify a host-range determinant.", Molecular Plant-Microbe Interactions, 8 (5): 666–73, doi:10.1094/MPMI-8-0666, ISSN 0894-0282, PMID 7579612
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