Transmission by Olpidium brassicae of Mirafiori lettuce virus and Lettuce big-vein virus, and their roles in lettuce big vein etiology (Articolo in rivista)

Type
Label
  • Transmission by Olpidium brassicae of Mirafiori lettuce virus and Lettuce big-vein virus, and their roles in lettuce big vein etiology (Articolo in rivista) (literal)
Anno
  • 2002-01-01T00:00:00+01:00 (literal)
Alternative label
  • Lot H., Campbell R.N., Souche S., Milne R.G., Roggero P. (2002)
    Transmission by Olpidium brassicae of Mirafiori lettuce virus and Lettuce big-vein virus, and their roles in lettuce big vein etiology
    in Phytopathology
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Lot H., Campbell R.N., Souche S., Milne R.G., Roggero P. (literal)
Pagina inizio
  • 288 (literal)
Pagina fine
  • 293 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 92 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Titolo
  • Transmission by Olpidium brassicae of Mirafiori lettuce virus and Lettuce big-vein virus, and their roles in lettuce big vein etiology (literal)
Abstract
  • Big-vein disease occurs on lettuce worldwide in temperature conditions, the causal agent has been presumed to be lettuce big-vein virus (LBVV), genus varicosavirus, vectored by the soilborne fungus Olpidium brassicae. Recently, the role of LBVV in the etiology of big-vein disease has been questioned because a second soilborne virus, Mirafiori lettuce virus (MiLV), genus Ophiovirus, has been found frequently in big-vein-affected lettuce. LBVV and MiLV, detectable and distinguishable by enzyme-linked immunosorbent assay using specific antisera, were tested fot their ability to be transmitted from lettuce to lettuce by mechanical inoculation of sap extracts, or by zoospores of O. brassicae, and to cause big-vein disease. both viruses were mechanically transmissible from lettuce to herbaceous hosts and to lettuce, but very erratically. LBVV was transmitted by O. brassicae but lettuce infected with only this virus never showed symptoms. MiLV was transmitted in the same manner, and lettuce infected with this virus alone consistently developed big-vein symptoms regardless of the presence or absence of LBVV. With repeated mechanical transmission, isolates of both viruses appeared to lose the ability to be vectored, and MiLV appeared to lose the ability to cause big-vein symptoms. The recovery of MiLV (Mendocino isolate, from California) from stored O. brassicae resting spores puts the earliest directly demonstrable existance of MiLV at 1990. (literal)

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