Abstract Potato virus Y (PVY) is one of the main diseases tobacco (Nicotiana tabacum). Recent studies indicated that Va gene (Ntab0942120) determines susceptibility crop to PVY, and product interacts with PVY genome-linked protein (VPg) initiate genome translation process, which ultimately leads systemic infection by virus. In this research, cultivar LJ911 was used as receptor material for edit...

The potential effect of genetic modification on nutritional properties of potatoes transformed to improve resistance to a necrotic strain of Potato virus Y was determined in a rat experiment. Autoclaved tubers from four transgenic lines were included to a diet in the amount of 40% and compared with the conventional cv. Irga. The experiment lasted 3 weeks and special attention was paid to nutrit...

SIEVERT, R. C. 1978. Effect of potato virus Y and tobacco mosaic virus on field-grown burley tobacco. Phytopathology 68: 823-825. Yield, grade index, crop index, value per kilogram, and tobacco had less nicotine and TMV-infected tobacco had less value per hectare were reduced when Burley 37 became a-amino nitrogen, but tobacco infected with TMV+PVY had infected with tobacco mosaic virus (TMV), ...

The pathogenicity properties of Potato virus Y (PVY; genus Potyvirus, family Potyviridae) isolates collected in naturally-infected pepper (Capsicum annuum) fields in Tunisia were evaluated against recessive resistance alleles at the pvr2 locus of pepper. Two pathotypes were observed. Pathotype (0,1,3) isolates were able to infect plants carrying the susceptibility allele pvr2, together with pvr...

Post-transcriptional gene silencing (PTGS) of a green fluorescent protein (GFP) transgene is suppressed in Nicotiana benthamiana plants infected with potato virus Y (PVY) or with cucumber mosaic virus (CMV), but not in plants infected with potato virus X (PVX). By expressing PVY and CMV-encoded proteins in a PVX vector we have shown that the viral suppressors of gene silencing are the HCPro of ...

The performance of seed tubers harvested from potato plants grown from sprout cutting, stem cutting and conventional seed tubers against PVY and PLRV were investigated. Sprout cutting, stem cutting and conventional seed tubers of variety Diamant were planted and second and third generation seed tubers were harvested. The least incidence of PVY and PLRV was recorded when seed tubers from sprout ...

Potato virus Y (PVY) coat protein gene has been cloned from an Indian isolate of PVY. The coat protein gene from this isolate showed 93.2% nucleic acid sequence homology and more than 94% amino acid sequence homology compared to an American isolate. The coat protein gene has been sub-cloned into plant expression vector pBINPLUS and tobacco leaf discs were transformed using Agrobacterium tumefac...

Potato virus Y (PVY) as one of the serious diseases on tobacco (Nicotiana tabacum L.), reduces leaf yield and its quality. Use of re-sistant genotypes is being considered as the most effective, economical and a safe way to reduce damages of the virus. In the present study, the response of 90 oriental and semi-oriental tobacco genotypes was evaluated against PVY using randomized complete block d...

The stability of hybrid plant viruses that might arise by recombination in transgenic plants was examined using hybrid viruses derived from the viral expression vectors potato virus X (PVX) and tobacco rattle virus (TRV). The potato virus Y (PVY) NIb and HCPro open reading frames (ORFs) were introduced into PVX to generate PVX-NIb and PVX-HCPro, while the PVY NIb ORF was introduced into a vecto...