<i>Potato virus Y</i>: An Evolving Concern for Potato Crops in the United States and Canada

Gray, Stewart M.; Boer, S. De; Lorenzen, J.; Karasev, Alexander V.; Whitworth, Jonathan L.; Nolte, Phillip; Singh, R. P.; Boucher, Alain; Xu, Huimin

doi:10.1094/pdis-02-10-0124

Cited by 204 publications

(136 citation statements)

References 90 publications

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“…The virus is responsible for decreased yield and quality around the world. Most importantly, it is the main reason for rejection of seed lots for certification (Gray et al 2010;Nolte et al 2004). Six different PVY strains affect these potato crops.…”

Section: Introductionmentioning

confidence: 99%

The movement of potato virus Y (PVY) in the vascular system of potato plants

Dupuis

2016

Eur J Plant Pathol

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Potato virus Y (PVY) is responsible for major viral diseases in most potato seed areas. It is transmitted by aphids in a non-persistent manner, and it is spread in potato fields by the winged aphids flying from an infected source plant to a healthy one. Six different PVY strains groups affect potato crops: PVY C , PVY N , PVY O , PVY N:O , PVY NTN , and PVY N-Wi . Nowadays, PVY NTN and PVY N-Wi are the predominant strains in Europe and the USA. After the infection of the leaf and accumulation of the virus, the virus is translocated to the progeny tubers. It is known that PVY N is better translocated than PVY O , but little is known about the translocation of the other PVY strains. The translocation of PVY occurs faster in young plants than in old plants; this mature plant resistance is generally explained by a restriction of the cell-to-cell movement of the virus in the leaves. The mother tuber may play an important role in explaining mature plant resistance. PVY is able to pass from one stem to the other stems of the same plant through the vascular system of the mother tuber, but it is unknown whether this vascular link between stems is permanent during the whole life of the plant. Two greenhouse trials were set up to study the spread of PVY in the vascular system of the potato plant. The PVY-susceptible cultivar Charlotte was used for both trials. It was demonstrated that all stems growing from a PVY-infected tuber will become infected sooner or later, and that PVY N-Wi translocates more efficiently to progeny tubers than PVY NTN . It was also demonstrated that the progressive decay of the mother tuber in the soil reduces the possibility for virus particles to infect healthy stems through the vascular system of the mother tuber. This new element contributes to a better understanding of the mechanism of mature plant resistance.

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Section: Introductionmentioning

confidence: 99%

The movement of potato virus Y (PVY) in the vascular system of potato plants

Dupuis

2016

Eur J Plant Pathol

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“…Recombination in RNA viruses permits rapid evolution and adaptation [30] and has been well studies in potyviruses [31,32]. Recombination is found to play a major role in BYMV host specialization as suggested earlier [33].…”

Section: Discussionmentioning

confidence: 81%

Characterization of a new isolate of Bean yellow mosaic virus Group-IV Associated with Mosaic disease of Gladiolus in India

Kaur¹,

Kumar²,

Sk³

2015

J Plant Pathol Microbiol

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“…Potato virus Y (PVY) is the most important pathogenic threat to the seed potato industry and is the primary factor limiting seed potato certification (Gray et al 2010). PVY infects a broad range of plants in the Solanaceae family, including important agricultural crops such as potatoes, tobacco, tomato, pepper, and petunia (Kerlan and Moury 2006).…”

Section: Introductionmentioning

confidence: 99%

Potato Cultivar and Seed Type Affect the Development of Systemic Potato virus Y (PVYN-Wi) Infection

et al. 2018

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Potato virus Y (PVY) infection is one of the greatest challenges to seed potato production in the United States. To determine how cultivar and seed type affect the development of systemic PVY infection, Russet Burbank and Russet Norkotah Colorado 3 cultivars were grown from two types of pre-nuclear seed (i.e., plantlets and minitubers) and Generation 3 (G3) tubers and challenged with PVY strain Wilga (PVY N-Wi ). Systemic PVY infection was measured by assaying spread of virus from the inoculation site to upper non-inoculated leaves. The Burbank cultivar had a lower incidence of systemic PVY infection compared to the incidence of systemic PVY that developed in the Colorado 3 cultivar. Furthermore, Burbank plants grown from G3 tubers had a lower incidence of systemic PVY infection, as compared to Burbank plants grown from plantlets. Together our results indicate that both cultivar and seed type affect the development of systemic PVY N-Wi infections post-inoculation. ResumenLa infección por virus Y (PVY) es uno de los mayores retos en la producción de semilla de papa en los Estados Unidos. Para determinar cómo afecta la variedad y el tipo de semilla al desarrollo de la infección sistémica de PVY, se cultivaron las variedades Russet Burbank y Russet Norkotah Colorado 3 de dos tipos de semilla pre-nuclear (p. e., plántulas y minitubérculos) y de tubérculos de la Generación 3 (G3), y se inocularon con PVY variante Wilga (PVYN-Wi). La infección sistémica de PVY se midió mediante la detección de la dispersión del virus desde el sitio de inoculación hacia las hojas superiores no inoculadas. La variedad Burbank tuvo la incidencia más baja de infección sistémica de PVYen comparación con la incidencia de PVY sistémico que se desarrolló en la variedad Colorado 3. Aún más, las plantas de Burbank originadas de los tubérculos de G3 tuvieron la incidencia más baja de infección sistémica de PVY, en comparación con las plantas de Burbank originadas de plántulas. Juntos, nuestros resultados indican que tanto la variedad como el tipo de semilla afectan el desarrollo de infecciones sistémicas de PVYN-Wi después de la inoculación.

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Potato virus Y: An Evolving Concern for Potato Crops in the United States and Canada

Cited by 204 publications

References 90 publications

The movement of potato virus Y (PVY) in the vascular system of potato plants

The movement of potato virus Y (PVY) in the vascular system of potato plants

Characterization of a new isolate of Bean yellow mosaic virus Group-IV Associated with Mosaic disease of Gladiolus in India

Potato Cultivar and Seed Type Affect the Development of Systemic Potato virus Y (PVYN-Wi) Infection

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