The necrotic disease of freesia and viruses involved. (Abstract/Comunicazione in atti di convegno)

Type
Label
  • The necrotic disease of freesia and viruses involved. (Abstract/Comunicazione in atti di convegno) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Alternative label
  • Vaira A.M., Carra A., Vallino M., Lenzi R., Salvi D., Hammond J. (2014)
    The necrotic disease of freesia and viruses involved.
    in The 2nd International Symposium "Preparing future agricultural science for climate change", Chungnam National University, Daejeon, South Korea, 21st October 2014.
    (literal)
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  • Vaira A.M., Carra A., Vallino M., Lenzi R., Salvi D., Hammond J. (literal)
Pagina inizio
  • 4 (literal)
Pagina fine
  • 4 (literal)
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  • Preparing future agricultural science for climate change (literal)
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  • 1 (literal)
Note
  • Comunicazione (literal)
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  • Salvi D. - Studio Ferrari-Salvi, Sanremo (IM), Italy Hammond J. - USDA-ARS, USNA, Floral and Nursery Plants Research Unit, MD, USA (literal)
Titolo
  • The necrotic disease of freesia and viruses involved. (literal)
Abstract
  • Necrotic disorder of freesia (Freesia refracta hyb., Family Iridaceae) was first described in The Netherlands before 1970. In following years, the disorder was widely reported in other European countries including Northern Italy. Very recently, the same necrotic disease was also detected in Virginia (United States), New Zealand, Bulgaria and South Korea. Presence of the Ophiovirus Freesia sneak virus (FreSV) has been widely associated with the necrotic disease in every case but some uncertainty remains. The freesia leaf necrosis complex has been shown to be soil-borne, transmitted by Olpidium brassicae, but other infectious agents could be naturally transmitted by the same vector, thickening the plot about the disease causal agent. Freesia plants showing necrotic disease, collected in Northern Italy during the 2011-2012 growing season were used for virus purification procedures. The product obtained was used for total RNA extraction and for TEM visualization. Several differently shaped virus particles were visualized in the mixture and total RNA has been used for sequence-independent amplification for the identification of known and unknown RNA viruses infecting diseased freesia. Some significant results will be discussed. (literal)
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