Recent developments in managing tuber blight of potato (<i>Solanum tuberosum</i>) caused by<i>Phytophthora infestans</i>

Olanya, O. M.; Ojiambo, Peter S.; Nyankanga, Richard; Honeycutt, C. Wayne; Kirk, W. W.

doi:10.1080/07060660909507602

Cited by 15 publications

(11 citation statements)

References 60 publications

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“…The significance of tuber late blight in initiating storage problems has been reported in many studies (Kirk et al , 2001d and recently reviewed (Olanya et al 2009). Infection of potato tubers by P. infestans may be initiated by zoospores, sporangia or oospores washed in precipitation or irrigation water from plant foliage and deposited in soil (Fry 2008).…”

Section: Discussionmentioning

confidence: 95%

“…tissue necrosis (Pathak and Niemira et al 1999;Flier et al 2001). Such resistance may be linked to major gene resistance as recently reviewed by (Olanya et al 2009). Park et al (2005) analyzed tuber resistance in three mapping populations carrying R genes or a major QTL for foliar resistance to late blight.…”

Section: Discussionmentioning

confidence: 97%

“…Unlike foliage resistance, the genetics of tuber blight resistance have not been extensively studied (Olanya et al 2009). Generally, cultivars with foliage blight resistance show some tuber blight resistance (Collins et al 1999), but this depends on plant genotype (Świeżyński and ZimnochGuzowska 2001) and in some instances the relationship does not hold (Kirk et al 2001c;Platt and Tai 1998).…”

Section: Discussionmentioning

confidence: 99%

“…de Bary) is the greatest threat to the potato crop, accounting for significant annual losses in North America (Guenthner et al 1999(Guenthner et al , 2001 and worldwide (Hijmans 2001). Tuber late blight results in tuber rotting both in the field and later in storage either in tubers intended for seed or consumption (Bonde and Schultz 1943;Johnson and Cummings 2009;Kirk et al 1999;Lambert and Currier 1997;McKay 1924, 1925;Olanya et al 2009). Seed tubers infected with P. infestans will either rot in storage, after planting in the field or survive and initiate new epidemics of potato late blight (Doster et al 1989;Dowley and O'Sullivan 1991;Kirk et al 2009;Stevenson et al 2007).…”

Section: Introductionmentioning

confidence: 98%

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Effect of Different Genotypes of Phytophthora infestans (Mont. de Bary) and Temperature on Tuber Disease Development

et al. 2010

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The interactions of different cultivars/Advance Breeding Lines (ABL) of potato with different genotypes of the potato late blight pathogen (Phytophthora infestans) at three storage temperatures on tuber late blight development were evaluated. The contribution of the medullar storage tissues was assessed rather than the periderm and outer cortical cell tissue. Tuber late blight severity measured as tuber darkening [mean Relative Average Reflectance Intensity [RARI (%)] generally increased with temperature. There was little difference in tuber late blight development between 7°C and 10°C treatments and in some combinations significantly more tissue darkening developed at 7 than at 10°C but little or no development occurred at 3°C. Resistance in tubers was observed only in Torridon andStirling and to some extent Jacqueline Lee, but the cultivar Missaukee had weak tuber resistance. The US-8 genotype isolates were the most aggressive in tubers in most years causing rapid and significantly more tuber damage than any other genotype of P. infestans and similar to the US-6, US-10 and US-14 isolates used in 2006.Resumen Se evaluaron las interacciones de diferentes variedades y líneas avanzadas (ABL) de papa con diferentes genotipos del patógeno del tizón tardío (Phytophthora infestans) a tres temperaturas de almacenamiento para el desarrollo del tizón tardío en tubérculo. Se analizó la contribución de los tejidos medulares de almacén en vez del peridermo y de tejido celular cortical más externo. La severidad del tizón tardío del tubérculo, medida como el oscurecimiento del tubérculo [media de la intensidad del promedio relativo de refractancia [RARI (%)], generalmente se incrementó con la temperatura. Hubo poca diferencia en el desarrollo del tizón tardío del tubérculo entre los tratamientos de 7 y 10°C, y en algunas combinaciones se desarrolló mayor oscurecimiento de tejido significativamente a 7 que a 10°C pero no se presentó a 3°C. La resistencia de los tubérculos se observó solo en Torridon y Stirling y hasta cierto punto en Jacqueline Lee, pero la variedad Missaukee tuvo débil resistencia de tubérculo. Los aislamientos del genotipo US-8 fueron los más agresivos en tubérculos en la mayoría de los años causando más daño en tubérculo rápida y significativamente que cualquier otro genotipo de P. infestans y similar a los aislamientos US-6, US-10, y US-14 usados en el 2006.

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Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Effect of Different Genotypes of Phytophthora infestans (Mont. de Bary) and Temperature on Tuber Disease Development

et al. 2010

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“…Other mechanisms of inoculum dispersal and disease spread in potato have also been documented. Movement of P. infestans inocula within soil has been shown to be a contributing factor for the tuber blight phase of the disease (Fairclough et al 1993;Mayton et al 2007;Olanya et al 2009b). Zoospores or sporangia have been implicated in short distance inoculum spread (Fairclough et al 1993).…”

Section: Introductionmentioning

confidence: 99%

Incidence of Phytophthora infestans (Mont.) de Bary on potato and tomato in Maine, 2006–2010

Olanya¹,

Larkin²,

Honeycutt³

2015

Journal of Plant Protection Research

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Late blight, caused by Phytophthora infestans (Mont.) de Bary, is a devastating disease which is found worldwide. In Maine, United States (US), we recorded late blight on potato and tomato during the 2006-2009 cropping seasons. From 2006 to 2008, over 90% of the diseased samples were collected in potato fields from northern and central Aroostook County in Northern Maine, US. Then, in 2009, an unprecedented influx of inoculum on infected tomato transplants shipped to retail garden centers throughout the Northeast US significantly changed the late blight infection patterns. In 2009, 43% of diseased samples obtained were from tomato, and 57% from potato, and disease was found to occur all over the state. Moran's index and spatial autocorrelation analysis of disease occurrence, geographical locations, host factors, and infection levels from previous years, were not statistically significant (p > 0.05). Therefore, random distributions of late blight incidences were recorded across locations and years. Nearest neighbor analysis revealed that mean spatial distances for late blight occurrence ranged from 1.51 to 71.4 km from 2006 to 2008, and 7.4 to 126.5 km in 2009. The frequency and locations of late blight outbreaks in 2009 were substantially greater than in 2006, 2007, and 2008, as affected by the influx of inoculum and movement of infected tomato seedlings as well as conducive environmental conditions. All were contributing factors for late blight occurrence in Maine. In 2010, few disease samples were collected, indicating that the influx of inoculum in 2009 did not persist to cause widespread disease in 2010. The reduction of inocula sources, fungicide protection of susceptible hosts, and the removal and destruction of infected tomato seedlings and potato cull piles or volunteer plants, can greatly reduce late blight occurrences and improve potato production. These actions should be considered as an integral part of late blight management programmes in regions where late blight commonly occurs.Mention of trade names or commercial products in this publication is solely for the purpose of providing specific information and does not imply recommendation for endorsement by the US Department of Agriculture or the University of Maine. USDA is an equal opportunity employer.

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Evaluation of salicylic acid (SA) signaling pathways and molecular markers in Trichoderma-treated plants under salinity and Fusarium stresses. A Review

et al. 2023

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Recent developments in managing tuber blight of potato (Solanum tuberosum) caused byPhytophthora infestans

Cited by 15 publications

References 60 publications

Effect of Different Genotypes of Phytophthora infestans (Mont. de Bary) and Temperature on Tuber Disease Development

Effect of Different Genotypes of Phytophthora infestans (Mont. de Bary) and Temperature on Tuber Disease Development

Incidence of Phytophthora infestans (Mont.) de Bary on potato and tomato in Maine, 2006–2010

Evaluation of salicylic acid (SA) signaling pathways and molecular markers in Trichoderma-treated plants under salinity and Fusarium stresses. A Review

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