Reaction of potato varieties toPotato mop-top virus infection in the andes

Tenorio, Jorge; Franco, Yaneth Julieta Ladino; Chuquillanqui, C.; Owens, Robert A.; Salazar, Luis

doi:10.1007/bf02872018

Cited by 30 publications

(26 citation statements)

References 17 publications

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“…This virus occurs in many of the major potato-producing regions of northern Europe, South America, China, Japan and Australia, and recently there has been an outbreak in northern USA and Canada. Tenorio et al (2006) screened 21 potato cultivars and found no evidence for a positive correlation between their susceptibility to PMTV and the incidence of powdery scab on their tubers, a result later confirmed by Kirk (2007).…”

Section: Importance Occurrence Damagementioning

confidence: 72%

Review: Powdery Scab of Potato—Increased Knowledge of Pathogen Biology and Disease Epidemiology for Effective Disease Management

Merz

Falloon

2008

Potato Res.

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Section: Importance Occurrence Damagementioning

confidence: 72%

Review: Powdery Scab of Potato—Increased Knowledge of Pathogen Biology and Disease Epidemiology for Effective Disease Management

Merz

Falloon

2008

Potato Res.

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“…(). In addition, such an association may not occur in other environments, such as Peru (Tenorio et al ., ). Carnegie et al .…”

Section: Discussionmentioning

confidence: 99%

“…In the Peruvian Andes, Tenorio et al . () also reported the absence of a correlation between infection by PMTV and the incidence or severity of powdery scab. However, S. subterranea can also infect roots, resulting in the development of root galls and this infection occurs at temperatures greater than the optimum range of 12–15°C for powdery scab (van de Graaf et al ., ).…”

Section: Introductionmentioning

confidence: 99%

The importance of the infected seed tuber and soil inoculum in transmitting Potato mop‐top virus to potato plants

et al. 2013

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Potato mop‐top virus (PMTV), the cause of spraing in potato tubers, is transmitted by Spongospora subterranea, the cause of powdery scab, and by planting infected seed tubers. This study was undertaken to determine the relative importance of these sources of infection in seed potato production in Scotland. The transmission of PMTV from tested seed tubers to daughter plants was examined over 2 years and six cultivars. The development of foliar symptoms varied with year and cultivar. Infection of daughter tubers derived from PMTV‐infected seed tubers was more prevalent on plants affected by foliar symptoms than those without symptoms. The rate of transmission of PMTV from infected seed tubers to daughter tubers ranged from 18 to 54%. Transmission was affected by cultivar and by origin of seed tubers used for a cultivar, but not by a cultivar's sensitivity to PMTV infection. The incidence of PMTV in daughter tubers of cv. Cara grown from seed potatoes from one source (common origin) by more than 25 seed producers was examined over two successive generations. The incidence of PMTV in daughter tubers was not correlated with that in the seed tubers but appeared to be strongly associated with soil inoculum. The incidence of PMTV was correlated with powdery scab in those crops in which both were present. There was some evidence from soil tests conducted in 2006 using a tomato bait plant and real‐time RT‐PCR that planting PMTV‐infected seed potatoes could increase the risk of introducing the virus into land not infested by PMTV.

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“…PMTV typically produces slightly raised lines and rings on the tuber surface and/or brown arcs and lines, commonly described as spraing, in the flesh of tubers of sensitive cultivars (Calvert and Harrison 1966;Harrison and Jones 1971;Kurppa 1989). Plants produced from infected tubers may also produce misshapen or cracked tubers (Calvert 1968), often with reticulate surface cracking, sometimes known as elephant hide blemishing, on the skin (Calvert 1968;Tenorio et al 2006). Symptoms may also develop on the foliage of a plant, depending on the sensitivity of the cultivar.…”

Section: Introductionmentioning

confidence: 98%

Foliar Symptoms Caused by Potato mop-top virus on Potato Plants During Vegetative Propagation in Scotland and Their Association With Tuber Yield, Spraing and Tuber Infection

2010

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The effect of foliar symptomatic infection by Potato mop-top virus (PMTV) on yield of tubers, spraing and infection in daughter tubers, and foliar symptom development and tuber infection in the following generations of propagation was investigated in commercial seed potato crops in Scotland. Six crops covering cvs Atlantic, Hermes, Nicola and Cara were studied between 2000 and 2006 by labelling paired replicates of plants with foliar symptoms and plants with no symptoms. Tubers from plants with no symptoms rarely produced plants with foliar symptoms in the following generation. Plants with no symptoms produced more infected tubers if they had been derived from plants with foliar symptoms the previous year than from plants with no symptoms. The proportion of daughter plants with foliar symptoms produced by tubers from plants with foliar symptoms in year 1 ranged from 19-41% and seemed to be associated with the severity of foliar symptoms. The detection of PMTV by ELISA in samples of leaves from plants with foliar symptoms ranged from 13% for cv. Cara to 59% for a crop of cv. Atlantic in 2004. The amounts of spraing were generally low but tended to be greater for tubers from plants with foliar symptoms than those from plants with no symptoms. These results indicate that roguing plants with foliar symptoms in seed potato crops could achieve an improvement in crop health but might be impractical when diseased plants are too prevalent.

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Reaction of potato varieties toPotato mop-top virus infection in the andes

Cited by 30 publications

References 17 publications

Review: Powdery Scab of Potato—Increased Knowledge of Pathogen Biology and Disease Epidemiology for Effective Disease Management

Review: Powdery Scab of Potato—Increased Knowledge of Pathogen Biology and Disease Epidemiology for Effective Disease Management

The importance of the infected seed tuber and soil inoculum in transmitting Potato mop‐top virus to potato plants

Foliar Symptoms Caused by Potato mop-top virus on Potato Plants During Vegetative Propagation in Scotland and Their Association With Tuber Yield, Spraing and Tuber Infection

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