Symptoms observed on N. benthamiana plants after inoculation with A. tumefaciens containing binary PVX derivatives expressing crn1, crn2, and inf1 from P. infestans or PsojNIP from P. sojae. Side-by-side toothpick inoculations were performed on leaves of 5-wk-old N. benthamiana. The binary PVX vector pGR106 was used as a negative control. Photographs were taken 5, 7, 9, and 11 d postinoculation (dpi).