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.).
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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."
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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).
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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