Potatoes are a vegetatively propagated crop, and many disease organisms including several viruses and a viroid are disseminated in tubers. The important role that tubers play in virus spread is recognized by the strict requirements for foundation or certified seed production.

Viral diseases of potato are a group of diseases caused by different types of Viruses that affect potato crops worldwide and, although they do not affect human or animal health since they are viruses that only infect vegetables, they are a source of great economic losses annually. About 28 viruses have been reported infecting potato crops.

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.

Potato virus Y (PVY) is the type member of the genus Potyvirus, which includes some of the most destructive plant viruses (Kerlan, 2006; Scholthof et al., 2011), and of the family Potyviridae, a group of single‐stranded RNA viruses.

PVY symptoms vary with strain of the virus, cultivar and environmental conditions. PVY s ymptoms 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 ...

Potato virus Y (PVY) is a member of the genus Potyvirus, family Potyviridae. PVY has a single-stranded positive-sense RNA genome of about 9.7 kb linked covalently to a VPg protein at the 5′-terminus with a poly-A tail at the 3′-terminus (Wylie et al., 2017).