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Potyviruspotato virus Y {PVY} pathotype NTN

A virus on UK and European petunias which also threatens potato

IDENTITY

Nombre: Potyvirus potato virus Y {PVY} pathotype NTN
Posición taxonómica:
Virus: Potyviridae
Nombre común: PVYNTN

Importancia:
This is the first record of PVYNTN causing disease in a host other than potato or tomato. Petunia stocks with infection levels as high as 100% have been reported. This virus has not been detected in North America.

Preocupación: This necrotic strain of PVY has been shown to cause necrotic tuber symptoms in potato similar to potato tuber necrotic ringspot disease (PTNRD).

Hospedantes: trailing petunia; 19 of 24 species of bedding and pot plant crops tested were also susceptible (Boonham et al., 1999)

Vector(es)/Dispersión: The virus is transmitted by up to 40 aphid species belonging to 20 different genera. The virus is also transmitted in sap and by the distribution of infected vegetatively propagated material.

Distribución:
U.K., The Netherlands, Germany

Estrategias de detección
This virus is not seed born, so vegetatively propagative material represents the most likely pathway for introduction. Several commercial moniclonal antibodies are available for detection by ELISA (eg. see link below) .

Otro tipo de información:
Source: Canadian Plant Health Early Warning System

Referencias:
Boonham, N., Hims, M., Barker, I. and N. Spence. 1999. Potato virus Y from petunia can cause symptoms of potato tuber necrotic ringspot disease (PTNRD). European Journal of Plant Pathology, 105: 617-621.

Useful Links:
Canadian Plant Health Early Warning System Alert
Plant Viruses Online Description of PVY Group
Indirect ELISA test system for Potyvirus group





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