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RMV... What do you do after?
I stated: Also, does it concern you that the virus has been found in
naturally occuring wild roses? Julie asked: " I missed that one the first time around. Where is it stated RMV was found in naturally occuring wild roses?" First, to avoid confusion among the readers of this thread, this quote is not from my original link. In that link the statements that I provided are the following two: 1) "In a 1962 American Rose Annual article the following is stated: "L.C. Cochran found two roses in California naturally infected with the virus of peach ring spot." (Peach ring spot is another name for PNRSV, the main component of RMV in the U.S.). --------------------------------------------------------------------------- ----------------------------------------------- 2) "AND for other rose viruses there are papers that have found "non Rose Rosette Disease virus" - (RRD is a story in itself, it also started with "research" stating that it would not spread) in other naturally occurring wild roses in the U.S., and seed transmission and nematode transmission in other countries." ---------------------------------------------------------------------------- ------------------------------------------------ The following is a two part expansion of some of what is behind the concise statements in my link (I kept the information in the link focused on PNRSV, the main component of what collectively is called RSV): Part 1) Dr. L C. Cochran's 1972 American Rose Annual article: "VIRUSES INFECTING ROSES" Approximately nine separate virus diseases affecting roses have been recorded. The one most commonly occurring on roses has been loosely described under such names as: typical mosaic, yellow mosaic, streak, rose viruses 1, 2, & 3, vein banding, line pattern, chlorotic mottle, prunus ringspot, etc. Research data delimitating this group is still incomplete and until completed will be referred to under the name rose mosaic. Other viruses which have been used to infect roses or have been recovered from naturally infected plants include: (1) Tomato ringspot virus, transmitted by the nematode Xiphinema americanum, occurring sporadically in western United States; (2) Streak, vector unknown, occurring sporadically but latent in some cultivars; (3) Arabis mosaic virus, common in roses in Europe, transmitted by the nematode X. diversicaudatum; (4) Strawberry latent ringspot virus transmitted by the same nematode; (5) Apple mosaic virus reported from Europe and Australia; (6) Tobacco ringspot virus, reported from Iowa; (7) Witches' broom virus, reported from Nebraska and California; (8) Rose wilt virus, reported from Australia and a new disease occurring in California, resembling rose wilt, which causes a disease tentatively called spring dwarf. Without doubt a careful study might reveal some other viruses, such as Tobacco mosaic and tobacco necrosis in rose." Note the use of: "or have been recovered from naturally infected plants" and statements such as: "Tomato ringspot virus, transmitted by the nematode Xiphinema americanum, occurring sporadically in western United States". Also note, although he numbers the statements as if the references are provided, the references were not given. AND Part 2) The published paper by R. H. Converse and A. B. Bartlett, Plant Disease Reporter, volumn 63, pages 441-444, (1979). They studied 21 wild rose plants from 17 Oregon, U.S.A. locations. 5 plants out of the 20 that were tested by agar-gel diffusion (1 plant was not tested) were found to have tobacco streak virus ( see: http://image.fs.uidaho.edu/vide/descr811.htm ). The positive testing plants came from 4 of the 17 sites (2 positive out of 2 tested from one site; 1 out of 1 tested from another site; 1 out of 3 from another; and 1 out of 1 from another). ---------------------------------------------------------------------------- ---- To minimize scrolling I have reproduced the literature introduction to my original link (which defines what viruses are considered part of what is being discussed in the scientific world). The word "ilarvius" for our purpose can be thought of as just a more fancy way of saying "virus". Title: Roses: virus and virus-like diseases. Author: Lisa-V Published in: Colture-Protette. 1998, 27: 5 Supplement, 35-38; 14 ref. Language of article: Italian Abstract: "Notes are given on the viruses and virus-like diseases that are known to affect roses around the world. The most common and widespread virus disease is rose mosaic, associated especially with prunus necrotic ringspot ilarvirus (PNRSV), apple mosaic ilarvirus (ApMV), arabis mosaic nepovirus (ArMV) and strawberry latent ringspot nepovirus (SLRV), but also with tobacco ringspot nepovirus, tobacco streak ilarvius and tomato ringspot nepovirus. Tobacco mosaic tobamovirus and an unidentified closterovirus are found sporadically. The virus-like diseases of unknown aetiology include rose ring pattern, rose flower break, rose streak, rose rosette (or rose witches' broom), rose leaf curl, rose spring dwarf and rose wilt. Other disorders are caused by hormonal imbalances or other types of incompatibility between the graft and the rootstock of unknown aetiology, such as rose bud proliferation, rose dieback (or rose stunt) and frisure. Techniques for diagnosing viruses in roses and methods for their control are described." (The actual articles are copyrighted. This is why one will only see the abstract on public forums.) Henry Kuska, retired http://home.neo.rr.com/kuska/ "Unique Too" wrote in message ... "Henry Kuska" writes: Also, does it concern you that the virus has been found in naturally occuring wild roses? I missed that one the first time around. Where is it stated RMV was found in naturally occuring wild roses? Julie |
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