Field isolates of Tomato spotted wilt virus overcoming resistance in capsicum in Australia

In 2002 at Virginia, South Australia, capsicum cultivars having the Tsw resistance gene against Tomato spotted wilt virus (TSWV) developed symptoms typical of TSWV infection and several glasshouse-grown crops were almost 100% infected. Samples reacted with TSWV antibodies in ELISA. Virus isolates fr...

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Bibliographic Details
Published inAustralasian plant pathology Vol. 35; no. 2; pp. 123 - 128
Main Authors Sharman, M, Persley, D M
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Nature B.V 01.01.2006
Subjects
Antibodies
Biological properties
Capsicum
Capsicum chinense
Cultivars
Disease resistance
gene
Genotypes
Greenhouses
Lycopersicon esculentum
Sw-5
Tomato spotted wilt virus
Tomatoes
Tospovirus
Tsw
Virulence
Viruses
Wilt
Australia
United States > US
Virginia
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Summary:In 2002 at Virginia, South Australia, capsicum cultivars having the Tsw resistance gene against Tomato spotted wilt virus (TSWV) developed symptoms typical of TSWV infection and several glasshouse-grown crops were almost 100% infected. Samples reacted with TSWV antibodies in ELISA. Virus isolates from infected plants induced severe systemic symptoms, rather than a hypersensitive reaction, when inoculated onto capsicum cultivars and Capsicum chinense genotypes (PI 152225 and PI 159236) that carry the Tsw resistance gene. Isolates virulent towards the Tsw gene had molecular and biological properties very similar to standard TSWV isolates, including a hypersensitive reaction in Sw-5 (TSWV-resistant) tomato genotypes. Tsw- virulent isolates were found during surveys at Virginia in 2002 and 2004 in both TSWV-resistant and susceptible cultivars of capsicum and tomato.
Bibliography:Australasian Plant Pathology publishes new and significant research in all fields of plant pathology. Distribution and readership of the journal is worldwide, but emphasis is placed on strengthening its role as the major publishing outlet in the Australasian region. Australasia is interpreted in the broadest sense to include not only Australia, New Zealand and Papua New Guinea, but also the Indian Ocean, Pacific and Asian regions
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0815-3191
1448-6032
DOI:10.1071/AP06014