Relationship of Calcium to Potato Scab

Lambert, D. H.; Manzer, F. E.

doi:10.1094/phyto-81-632

Cited by 31 publications

(23 citation statements)

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“…It is generally agreed that the period of tuber initiation and expansion is critical for infection. As described by Lapwood (1973), young lenticels are the most susceptible and, based on this observation, it is possible to explain differences in results reported by Davis et al (1976b) and Lambert & Manzer (1991). Davis et al (1976b) showed that the calcium content in the peelings was highly correlated with scab, while Lambert & Manzer (1991) found that scab incidence was not correlated with Ca concentrations in healthy tuber periderm.…”

Section: Resultssupporting

confidence: 61%

“…Goto (1985) concluded that calcium content was a more reliable parameter than soil pH for evaluation the severity of potato scab. By contrast, Lambert & Manzer (1991) concluded that pH was a better predictor of scab incidence than the content of soil extractable calcium. It is fortuitous that the soil pH was very similar at both sites (5.7-5.8).…”

Section: Resultsmentioning

confidence: 91%

“…Potato cultivars differ in the accumulation of nutrients from soil (Walworth & Muniz, 1993) and this can influence the content of minerals in particular plant organs. Literature data about the content of elements in potato periderm tissue are concerned with soil (Barnes & McAllister, 1971;Davis et al, 1976a), sources of calcium (Horsfall et al, 1954;Davis et al, 1976b;Lambert & Manzer, 1991), nitrogen, phosphorus, copper, iron, zinc, boron (Davis et al, 1976b), tuber size (Effmert, 1990), soil type (Simmons & Kelling, 1987) and in relation to plant diseases (McGuire & Kelman, 1986) including common scab (Davis et al, 1976a,b;Keinath & Loria, 1989). Data in each of these studies were for one cultivar only.…”

Section: Introductionmentioning

confidence: 99%

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Accumulation of mineral elements in tuber periderm of potato cultivars differing in susceptibility to common scab

et al. 2000

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SummaryConcentrations of Ca, P, K, Mg, AI, Fe, Mn, Cu and Zn were determined in healthy tuber peelings of cultivars less (Karin, Sant6 and Symfonia) and more (Agria, D6sir6e and Tomensa) susceptible to common scab when grown at two sites that differed in the level of scab incidence. The accumulation of some elements was significantly influenced by site, year, cultivar, maturity and the age of tuber periderm. At both sites, Ca and P in periderm tissue declined but Mg increased during the growing season. The Ca/P ratios in tuber periderm of all cultivars greatly decreased 83 days after planting. Concentrations of mineral elements measured at harvest may not reflect conditions present during the infection period, and consequently may not be related to scab incidence or severity.

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Section: Resultssupporting

confidence: 61%

Section: Resultsmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

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Accumulation of mineral elements in tuber periderm of potato cultivars differing in susceptibility to common scab

et al. 2000

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“…In contrast to our findings with ZC-infection of 'Atlantic' potatoes, where calcium levels increased as a result of infection, the consensus is that calcium levels decrease during the disease process or in some cases, stay relatively unchanged compared to disease-free tubers. However, it has been reported that calcium levels in potato peel infected with common potato scab are four-to-five times greater than noninfected peel from the same tuber (Lambert and Manzer 1991). The most substantial and conclusive connection thus far between potato disease and the influence of mineral content has been made for calcium.…”

Section: Discussionmentioning

confidence: 99%

Impact of Zebra Chip Disease on the Mineral Content of Potato Tubers

Miles¹,

Buchman²,

Munyaneza³

2009

Am. J. Pot Res

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Zebra chip (ZC) is an emerging and damaging disease of potato (Solanum tuberosum L.) that has been documented in potato fields throughout the southwestern United States, Mexico, Central America, and most recently New Zealand. The bacterium "Candidatus Liberibacter" has been putatively identified as the causal agent of this disease and the potato psyllid, Bactericera cockerelli (Sulc), as the insect vector. Tuber symptoms of ZC-infected plants include collapsed stolons, enlarged lenticels, vascular tissue browning, medullary ray discoloration, and necrotic flecking. ZC tuber symptoms are similar to those of potato diseases which exhibit perturbations in tuber mineral composition resulting in internal necrotic disorders. To determine the effect of ZC disease on the mineral content of potato tubers, concentrations of P, K, S, Ca, Mg, Na, Fe, Al, Mn, Cu, Zn, and B were analyzed in 'Atlantic' potatoes from ZC-infected and free plants, for both tuber flesh and peel tissues. The potatoes were grown at Weslaco, TX and Wapato, WA, two different and distant geographical locations under controlled cage conditions. Results showed that flesh tissue from ZC-infected tubers had significantly higher concentrations of P, K, and Ca at both locations, whereas, ZC-infected tuber flesh from Weslaco had higher concentrations of Mg, Cu, Zn, and B, while concentrations of Fe and Al were higher in ZC-infected tuber flesh from Wapato. Peel tissue from ZC-infected tubers were found to have a significantly higher level of Zn at both locations, whereas the levels of P and Na were found to significantly higher in peel tissue from Wapato and Weslaco, respectively.Finally, Mg was found to be significantly higher in ZC-free tubers from both locations and levels of Cu and B were significantly higher in ZC-free peel tissue from Wapato.Resumen Zebra chip (ZC) es una enfermedad emergente y dañina de papa (Solanum tuberosum L.) que ha sido documentada en campos de papa en todo el sureste de los Estados Unidos, México, Centro América, y recientemente en Nueva Zelandia. Se ha identificado presuntamente a la bacteria "Candidatus liberibacter" como el agente causal de esta enfermedad, y al psílido de la papa Bactericera cockerelli (Sulc) como el insecto vector. Los síntomas del tubérculo de plantas infectadas con ZC incluyen el colapso de los estolones, lenticelas alargadas, oscurecimiento del tejido vascular, coloración radial medular y manchas necróticas. Los síntomas de ZC en tubérculo son similares a los de enfermedades de papa que muestran alteraciones en la composición mineral del tubérculo que resulta en desordenes internos necróticos. A fin de determinar el efecto de la enfermedad ZC en el contenido mineral de tubérculos de papa, se analizaron las concentraciones de P, K, S, Ca, Mg, Na, Fe, Al, Mn, Cu, Zn, y B, en plantas infectadas con ZC y sanas de la variedad Atlantic de papa, tanto de la pulpa como de la cutícula. Las papas se cultivaron en Weslaco, TX y Wapato, WA, dos ubicaciones geográficas diferentes y distantes, bajo condiciones controla...

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“…According to some authors [see Goto, 1985] the content of exchangeable calcium is a more reliable parameter than the soil pH to evaluate the severity of potato scab. Experiments on field plots treated with dolomitic lime and gypsum [Lambert and Manzer, 1991] show on the other hand that scab incidence is correlated to soil pH (P < 0.001) and not Ca concentrations in soil, tuber periderm or medulla tissue and that in low pH soils higher tissue Ca concentration is an effect rather than a cause of increased scab.…”

Section: Symptomsmentioning

confidence: 95%

Actinomycetes as plant pathogens

Locci

1994

Eur J Plant Pathol

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Biology, taxonomy, pathogenicity and control of plant disease inducing actinomycetes are reviewed. Recent progress in the study of potato, sweet potato, blueberry and fruit and forest tree diseases is illustrated. The role in potato scab pathogenesis of the newly discovered phytotoxins, thaxtomins, is discussed.Abbreviations: ATCC = American Type Culture Collection, Rockville, Md, USA; IMRU = Institute of Microbiology, Rutgers University, NJ, USA; ISP = International Streptomyces Project; PCNB = pentachloronitrobenzene; 3,5-D = 3,5-dichlorofenoxyacetic acid.

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Relationship of Calcium to Potato Scab

Cited by 31 publications

References 0 publications

Accumulation of mineral elements in tuber periderm of potato cultivars differing in susceptibility to common scab

Accumulation of mineral elements in tuber periderm of potato cultivars differing in susceptibility to common scab

Impact of Zebra Chip Disease on the Mineral Content of Potato Tubers

Actinomycetes as plant pathogens

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