1Molecular and Cell Biology Program, University of Maryland, College Park 20742, U.S.A.; and 2Center for Agricultural Biotechnology, University of Maryland Biotechnology Institute, College Park 20742, U.S.A.
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Accepted 6 May 1997.
Solanum melongena (eggplant) exhibits a hypersensitive response (HR) when infected with tobacco mosaic tobamovirus (TMV). In contrast, a TMV mutant unable to express coat protein (CP) did not elicit the HR, while a potexvirus vector engineered to express TMV CP did elicit the eggplant HR. The CPs of U2 and odontoglossum ringspot tobamoviruses also elicited the HR. However, the HR was not elicited by the CP of cucumber green mottle mosaic tobamovirus. Taken together, these findings demonstrate that specific tobamovirus CPs function as elicitors of the eggplant HR.
© 1997 The American Phytopathological Society