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(A) Sensitivity on purified DNA of P. viticola. M, 100-bp DNA Ladder; 1, 3.3 ng; 2, 330 pg; 3, 33 pg; 4, 3.3 pg; 5, 330 fg; 6, 33 fg; 7, 3.3 fg; 8, negative control. (B) Sensitivity on artificially infected grape leaves. M, 100-bp DNA ladder; 1, 1 dpi; 2, 2 dpi; 3, 3 dpi; 4, 4 dpi; 5, 5 dpi; 6, 6 dpi; 7, 7 dpi; 8, 8 dpi; 9, negative control.
