Cross-Protection of Grapefruit from Decline-Inducing Isolates of Citrus Tristeza Virus

The ability of three mild isolates of citrus tristeza virus (CTV) to prevent natural infection of 84 Ruby Red grapefruit on sour orange rootstock by aphid-transmitted, decline-inducing isolates of CTV was assessed by symptoms and verified by enzyme-linked immunosorbent assay (ELISA) after 16 years....

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Veröffentlicht in:Plant disease. - 1997. - 83(1999), 11 vom: 30. Nov., Seite 989-991
1. Verfasser: Powell, C A (VerfasserIn)
Weitere Verfasser: Pelosi, R R, Rundell, P A, Stover, E, Cohen, M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 1999
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article
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520 |a The ability of three mild isolates of citrus tristeza virus (CTV) to prevent natural infection of 84 Ruby Red grapefruit on sour orange rootstock by aphid-transmitted, decline-inducing isolates of CTV was assessed by symptoms and verified by enzyme-linked immunosorbent assay (ELISA) after 16 years. Of 21 trees in each of four treatments protected by the DD 102 bb, Guettler HS, and DPI 1-12-5-X-E mild CTV isolates, 14, 10, and 14% were infected by severe isolates (MCA13 monoclonal antibody reactive) compared with 67% for unprotected control trees. The health of trees protected by the DD 102 bb CTV isolate was significantly better than that of unprotected control trees as measured by decline, tree ratings, and tree height. These data suggest that infection by certain mild isolates of CTV can cross-protect grapefruit trees on sour orange rootstock from decline-inducing isolates of CTV that are prevalent in the Indian River region of Florida 
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700 1 |a Pelosi, R R  |e verfasserin  |4 aut 
700 1 |a Rundell, P A  |e verfasserin  |4 aut 
700 1 |a Stover, E  |e verfasserin  |4 aut 
700 1 |a Cohen, M  |e verfasserin  |4 aut 
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