last revised 11-09-2015
By Henry Kuska
retired, Associate Professor, Department of Chemistry, University of Akron
Ph.D., Physical Chemistry
"This page gives the information that I have collected from my own literature searches and from others posting on the internet. Please let me know if you feel anything is not clear or is not addressed at all as I am continually updating/modifying it as I get feedback." The bold face was added by me for emphasis (H.Kuska).
Title: "First detection of Raspberry ringspot virus in mosaic diseased hybrid roses in Germany"
Although the title states "in Germany" the full paper suggests (to me) that no previous reports anywhere are known. I attempted a Google Scholar search and did not find any other reports.
Of particular interest (to me) is the following: "Various diseased rose cultivars such as Escimo, Diamant, Leonardo da Vinci, Chippendale, Trier 2000, Innocencia, Kurfürstin Sophie, and Alea were sampled in the summer of 2014. Symptoms suggested rose mosaic disease (RMD) that is caused by infection with any of a number of different viruses. The most prevalent virus species associated with RMD occurring worldwide are members of the ilar- and nepoviruses such as Prunus necrotic ringspot virus (PNRSV), Apple mosaic virus (ApMV), and Arabis mosaic virus (ArMV) (Horst & Cloyd, 2007). None of these viruses could be detected by DAS-ELISA in bud and leaf samples of eight diseased roses"
" The presence of the virus could be confirmed by RT-PCR amplification of the RpRSV-specific 385 bp MPfragment in samples derived from five different roses (cvs. Alea, Escimo, Kurfürstin Sophie, Leonardo da Vinci, Trier 2000), all exhibiting stunting, mosaic and/or chlorotic vein netting (Fig. 3)."
"This is the first report of RpRSV in tea hybrid roses exhibiting mosaic, chlorotic vein netting and stunting."
H. Kuska comment: this virus is commonly spread by nematodes, but it may be spread by seeds so we should probably be careful about European rose imports (it does not appear to be established in the U.S.).
See:
http://www.ndrs.org.uk/pdfs/032/NDR_032018.pdf
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