An update on viruses infecting greenhouse vegetable crops in Italy Updates on some viruses infecting cucurbits and tomato crops grown in greenhouses are briefly outlined. Evolutionary aspects of WMV and ZYMV concerning the emergence of necrogenic strains and seed transmissibility of the two viruses are discussed as well as the unexpected detection of TYLCV in cucumber, melon, squash and watermelon. Since TYLCV infections in cucurbits are symptomless, the risk of latent infections for tomato crops is highlighted. As for tomato crops, for the first time substantial evidence is provided that reassortants constitute a consistent part of the natural population of TSWV. Finally, eco-epidemiological consequences of seed transmission of PZSV and PepMV are discussed envisaging that phytosanitary restrictions must be applied to seed to limit the spread of harmful plant viruses.
Aggiornamento sulle problematiche da virus delle colture orticole in serra.
MASCIA, TIZIANA;Spanò R
2012-01-01
Abstract
An update on viruses infecting greenhouse vegetable crops in Italy Updates on some viruses infecting cucurbits and tomato crops grown in greenhouses are briefly outlined. Evolutionary aspects of WMV and ZYMV concerning the emergence of necrogenic strains and seed transmissibility of the two viruses are discussed as well as the unexpected detection of TYLCV in cucumber, melon, squash and watermelon. Since TYLCV infections in cucurbits are symptomless, the risk of latent infections for tomato crops is highlighted. As for tomato crops, for the first time substantial evidence is provided that reassortants constitute a consistent part of the natural population of TSWV. Finally, eco-epidemiological consequences of seed transmission of PZSV and PepMV are discussed envisaging that phytosanitary restrictions must be applied to seed to limit the spread of harmful plant viruses.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
