Posttranscriptional Gene Silencing Does Not Play a Significant Role in Potato virus X Coat Protein Mediated Resistance

BAZZINI, A. A.; HOPP, E.; BEACHY, R. N.; SEBASTIAN ASURMENDI

PHYTOPATHOLOGY

Año: 2006 vol. 96 p. 1175 - 1178

0031-949X

The expression of a gene that encodes coat protein (CP) of Potato virus X (PVX) in transgenic tobacco plants confers a high level of CP-mediated resistance (CP-MR) against PVX infection. To determine if posttranscriptional gene silencing (PTGS) plays a role in resistance, transgenic plants expressing PVX CP were challenged against PVX under conditions in which PTGS was suppressed by low temperatures or using viruses carrying PTGS suppressors. The data demonstrate that PTGS does not play a significant role in PVX CP-MR.Potato virus X (PVX) in transgenic tobacco plants confers a high level of CP-mediated resistance (CP-MR) against PVX infection. To determine if posttranscriptional gene silencing (PTGS) plays a role in resistance, transgenic plants expressing PVX CP were challenged against PVX under conditions in which PTGS was suppressed by low temperatures or using viruses carrying PTGS suppressors. The data demonstrate that PTGS does not play a significant role in PVX CP-MR.(PVX) in transgenic tobacco plants confers a high level of CP-mediated resistance (CP-MR) against PVX infection. To determine if posttranscriptional gene silencing (PTGS) plays a role in resistance, transgenic plants expressing PVX CP were challenged against PVX under conditions in which PTGS was suppressed by low temperatures or using viruses carrying PTGS suppressors. The data demonstrate that PTGS does not play a significant role in PVX CP-MR.