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Diameter of HR lesions on TMV-inoculated leaves of wild-type and transgenic (AS8 and S24) tobacco plants containing the N-gene. Lesion diameters were determined at 7 DPI. Data are from five independent experiments. In each experiment, six plants each of wild type, AS8, and S24 were used (each with a single inoculated leaf). Approximately 50 lesions per leaf were measured. Data are the mean ± sd (wild type, n = 1,773; AS8, n = 1,467; S24, n = 1,640).
