Potato virus Y (PVY) is a plant pathogenic virus of the family Potyviridae, and one of the most important plant viruses affecting potato production. PVY infection of potato plants results in a variety of symptoms depending on the viral strain.

2024年5月16日 · Potato virus Y (PVY) complex causes disease in many types of plants and crops including potato, tomato, pepper, tobacco, and eggplant. Symptoms range from mild yellow mottling on leaves to tuber necrosis (dying cells), which eventually kills the plant.

Schematic diagrams of the potyviruses potato virus Y (PVY), a typical member of the genus Potyvirus, papaya ringspot virus (PRSV) and sweet potato feathery mottle virus (SPFMV) genomes. The ssRNA genome is represented by a line and the polyprotein ORF by an open box with the mature proteolytic products named.

PVY symptoms include yellow, light green and dark green “mosaic” patterns on leaves, leaf drop, brown or black (necrotic) line patterns often on veins or shoots, necrotic lesions on leaves and stems, rugosity (wrinkling), yellow flecking, stunted growth, death of growing points, tuber cracking and tuber necrosis. Tuber necrosis caused by ...

The Potyviridae family and the Potyvirus class include potato virus Y (PVY). Potato infection Y is a hazardous microorganism that infects a wide range of important Solanaceae (nightshade) crops, including tomato, potato, pepper, and tobacco, resulting in …

2017年8月11日 · Potato virus Y (PVY) was considered to be one of the ten most important plant viruses of crops, because of its worldwide distribution and economic impacts (Scholthof et al. 2011). PVY is the most important virus infecting potatoes due to its worldwide prevalence, and being the main cause of crop degeneration (both yield and quality) (De Bokx ...

2019年7月17日 · Potato virus Y (PVY) is among the most economically important plant pathogens. Using cryoelectron microscopy, we determined the near-atomic structure of PVY’s flexuous virions, revealing a previously unknown lumenal interplay between extended carboxyl-terminal regions of the coat protein units and viral RNA.

Potato virus Y is a virus of the family Potyviridae, genus Potyvirus. It affects potatoes in two ways, reducing yield of the tubers and also compromising tuber quality. Some strains of PVY are also a concern for other solanaceous crops, such as pepper, tomato, tobacco and others.

普通株系群（pvy o ）和点纹株系群（pvy c ）的初发症状是小叶坏死、斑驳和变黄、叶脱落和植株早死；叶坏死是超敏型反应，一般始于叶上一个脉点，有可能导致斑点或环纹。

马铃薯y病毒（pvy）寄主范围较广，可侵染多种茄科、藜科和豆科植物，由于病毒株系不同而表现出不同症状。 主要有脉带花叶型、脉斑型和褪绿斑点型。