The present status of tomato viruses in Italy (Abstract/Poster in atti di convegno)

Type
Label
  • The present status of tomato viruses in Italy (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Alternative label
  • Parrella G., Crescenzi A. (2004)
    The present status of tomato viruses in Italy
    in SHS 1st International Symposium on Tomato Diseases and 19th Annual Tomato Disease Workshop, Orlando, Florida, USA
    (literal)
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  • Parrella G., Crescenzi A. (literal)
Rivista
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  • ISHS 1st International Symposium on Tomato Diseases and 19th Annual Tomato Disease Workshop, 20-24 June, Orlando, Florida, USA (literal)
Note
  • Abstract (literal)
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  • - Parrella G., CNR, Ist. Protezione Piante - Sez. di Portici (NA) (literal)
Titolo
  • The present status of tomato viruses in Italy (literal)
Abstract
  • During the last decade the number of viral species affecting tomato crops in Italy has increased considerably and the general situation has become complex, from both an epidemiological and a symptomatological point of view. The most widespread viruses are aphid-borne Cucumber mosaic virus (CMV), previously considered as he most harmful for tomato crops when associated with necrogenic satellite RNAs, and Potato virus Y (PVY), with a recently described necrogenic strain assuming importance. Tomato spotted wilt virus (TSWV) has assumed the role as a significant tomato disease, whose spread has become really important in most instances. New variants of Alfalfa mosaic virus (AMV) have been also reported in open field tomato crops. These isolates are very aggressive in tomato, where they elicit strong necrotic symptoms on leaves and fruits. A strain of Tomato mosaic virus (ToMV), able to overcome the Tm-2a gene, has been described in protected cultivations in southern Italy, but with limited distribution. Pepino mosaic virus (PepMV) has been recently detected in Sardinia in some tomato greenhouses. This virus, included in the EPPO alert list, is considered extremely dangerous. Fortunately, PepMV has been quickly eradicated from Italy. Among the whitefly-transmitted viruses, Tomato yellow leaf curl Sardinia virus (TYLCSV), recent occurrence of Tomato infectious virus (TICV), Tomato chlorosis virus (ToCV), and Tomato yellow leaf curl virus (TYLCV) are the most damaging viruses, especially in southern Italy. Finally, Parietaria mottle virus (PMoV) is widely distributed in Italy and in other Mediterranean countries, enlarging its natural host range to cultivated plants including tomato. Symptoms elicited by PMoV can be easily confused with those caused by other viruses, CMV and TSWV in particular, and for this reason its incidence could be underestimated in open field tomato crops. (literal)
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