Powdery scab disease of potato — a review

Harrison, J. G.; Searle, R. J. G.; Williams, N. A.

doi:10.1046/j.1365-3059.1997.d01-214.x

Cited by 128 publications

(162 citation statements)

References 86 publications

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“…The foliar and the root dry weight (g/ plant) were determined after drying the plants for 30 days at room temperature and then for 48 hours at 70ºC in a stove. The percentage of root surface covered by galls (severity) and the number of plants showing galls (incidence) were visually assessed (Harrison et al, 1997;Qu & Christ, 2007). The presence of S. subterranea in the roots of each replicate was confirmed by molecular detection, using SsF and SsR primers, which generate a 434 bp product .…”

Section: Plant Growth and Root Disease Severity And Incidencementioning

confidence: 99%

“…Powdery scab affects main potato production zones in the world (Harrison et al, 1997;Merz, 2008;Merz & Falloon, 2009) and is caused by Spongospora subterranea Wallr. Lagerheim f. sp.…”

Section: Introductionmentioning

confidence: 99%

“…subterranea (S. subterranea), obligate parasite that can complete its life cycle in the Solanaceae plant family such as the potato . In potato, the parasite replicates in roots and stolons and on tubers (Merz & Falloon, 2009), producing canker-like lesions in roots and stolons, called galls, and pustules on tubers (Harrison et al, 1997;Qu & Christ, 2007). These structures contain resting spore aggregations (sporosori), which are highly stress-resistant and can remain dormant in the soil for more than 10 years (Merz et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…These structures contain resting spore aggregations (sporosori), which are highly stress-resistant and can remain dormant in the soil for more than 10 years (Merz et al, 2005). With the lack of efficient control strategies (Harrison et al, 1997;García et al, 2002;Falloon, 2008), powdery scab is a rising issue for both national and international trade, and affects a staple crop with great socioeconomic value and with a profound cultural attachment.…”

Section: Introductionmentioning

confidence: 99%

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Powdery scab effect on the potato Solanum tuberosum ssp.andigena growth and yield: andigena

Gilchrist¹,

Soler²,

Merz

et al. 2011

Trop. plant pathol.

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Powdery scab affects most potato production zones in the world. The causal organism Spongospora subterranea f. sp. subterranea forms galls in roots and lesions on tubers during its replication. Recent researches suggest that S. subterranea could cause harmful effects on the host plant and potentially on yield. In order to quantify the disease impact on plant growth and yield, potato Solanum tuberosum ssp. andigena, cv. Diacol Capiro was grown in a soil infested with S. subterranea and compared to a healthy control soil. Data was taken at the flowering stage and at harvest. S. subterranea caused a plant length reduction of 23%, a foliar dry weight reduction of 32% and a tuber weight reduction of 30%, whereas S. subterranea did not reduce the number of tubers or stems. Key words: Spongospora subterranea, Andisol, plant weight, tuber weight reduction. RESUMOEfeito da sarna pulverulenta no desenvolvimento e produtividade da batata Solanum tuberosum ssp. andigena A sarna pulverulenta afeta a maioria das zonas de produção de batata no mundo. O organismo causador da doença, Spongospora subterranea f. sp. subterranea, forma galhas nas raízes e lesões em tubérculos durante a sua formação. Pesquisas recentes sugerem que S. subterranea pode causar efeitos deletérios sobre a planta hospedeira e, potencialmente, sobre o rendimento. Para quantificar o impacto da doença sobre o crescimento das plantas e o rendimento de batata, Solanum tuberosum ssp. andigena cv. Diacol Capiro foi cultivada em um solo infestado com S. Subterranea, comparando-se com solo de controle não infestado. Os dados foram tomados na fase de florescimento e na colheita. S. subterranea causou redução do comprimento de hastes da planta de 23%, de peso da matéria seca foliar de 32% e de peso de tubérculos de 30%. Contudo, não houve redução do número de tubérculos ou hastes. Palavras-chave: Spongospora subterranea, Andissol, peso de plantas, redução do peso de tubérculos.

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Section: Plant Growth and Root Disease Severity And Incidencementioning

confidence: 99%

“…Powdery scab affects main potato production zones in the world (Harrison et al, 1997;Merz, 2008;Merz & Falloon, 2009) and is caused by Spongospora subterranea Wallr. Lagerheim f. sp.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Powdery scab effect on the potato Solanum tuberosum ssp.andigena growth and yield: andigena

Gilchrist¹,

Soler²,

Merz

et al. 2011

Trop. plant pathol.

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“…subterranea inicia con la liberación de las zoosporas por efecto de los exudados de las raíces y condiciones de humedad y temperatura del suelo (Harrison et al, 1997, Restrepo et al, 2010, Corrales et al, 2011. Las zoosporas pierden sus flagelos en contacto con el pelo radical y desarrollan una estructura por donde es depositado el contenido celular de la zoospora.…”

Section: Introductionunclassified

Comparación de Dos Métodos de Detección de Spongospora subterranea f. sp. subterranea en Raíces de Plantas Hospederas

Aristizabal

Amaya

Montoya

et al. 2013

Rev. Fac. Cienc. Básicas

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En esta investigación se compararon dos métodos de detección de Spongospora Aterranea f. sp. subterranea en raíces de plantas hospederas, mediante observación microscópica y PCR en tiempo real (qPCR). Para esto, se evaluaron 20 especies vegetales que fueron inoculadas con una concentración de 1,25x105 quistosoros.g-1 de suelo. Fue obtenida una muestra de raíz tres meses después de inoculación para determinar la presencia de estructuras morfológicas mediante dos metodologías: microscopía de luz previa tinción con azul de tripano y qPCR usando el sistema Taqman con los cebadores SponF y SponR y la sonda específica SponP. Estos cebadores amplifican un fragmento de 138 pb de la región ITS2 del ADN ribosomal. Para cuantificar la concentración de quistosoros en los tejidos evaluados, se realizó una curva estándar a partir de diluciones seriadas de 1,25x107 to 1,25x103 cystosori.mL-1, y se estimó el valor del ciclo umbral (Ct) para cada muestra desconocida con relación a la curva estándar. Finalmente, se analizaron los datos con el coeficiente de Kappa para determinar el grado de concordancia entre ambos métodos. Se encontró que los métodos utilizados presentaron un grado de acuerdo leve (0.19) en la detección e identificación de S. subterranea f. sp. subterranea en raíces de diversas plantas hospederas.

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Pre and Post Harvest Diseases of Potato and Their Management

Arora

Sharma

2014

Fungal Biology

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Powdery scab disease of potato — a review

Cited by 128 publications

References 86 publications

Powdery scab effect on the potato Solanum tuberosum ssp.andigena growth and yield: andigena

Powdery scab effect on the potato Solanum tuberosum ssp.andigena growth and yield: andigena

Comparación de Dos Métodos de Detección de Spongospora subterranea f. sp. subterranea en Raíces de Plantas Hospederas

Pre and Post Harvest Diseases of Potato and Their Management

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