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Potato virus Y from petunia can cause symptoms of potato tuber necrotic ringspot disease (PTNRD)

Lookup NU author(s): Professor Neil Boonham


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A potyvirus known to be an important agent involved in causing a disease of trailing petunias, was identified as being a member of the necrotic strain of potato virus Y (PVY) using a number of monoclonal antibodies. The sequence of the coat protein gene for the PVY isolate was determined and when compared with sequences for other PVY strains it was shown to cluster closely with isolates of PVY(NTN) and to have a recombination point present within the coat protein common with other isolates of PVY(NTN). When inoculated onto potato tuber necrotic ringspot disease (PTNRD) susceptible potato cultivars the petunia isolate was found to be capable of causing necrotic tuber symptoms, consistent with those caused by other isolates of PVY(NTN). Due to the number of similarities it is thought the petunia isolate belongs to the PVY(NTN) group of isolates. Out of 24 species of bedding and pot plant crops tested, 19 were shown by mechanical inoculation to be susceptible to PVY, highlighting not only a clear risk to a number of commercially important plant species from PVY(NTN) infected trailing petunias, but also other susceptible crops grown in these areas.

Publication metadata

Author(s): Boonham N, Hims M, Barker I, Spence N

Publication type: Article

Publication status: Published

Journal: European Journal of Plant Pathology

Year: 1999

Volume: 105

Issue: 6

Pages: 617-621

Print publication date: 01/09/1999

ISSN (print): 0929-1873

ISSN (electronic): 1573-8469

Publisher: Springer


DOI: 10.1023/A:1008715224185


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