4×–2× Potato Clones with Resistance or Susceptibility to Internal Heat Necrosis Differ in Tuber Mineral Status

Sterrett, S. B.; Haynes, Kathleen G.; Yencho, G. Craig; Henninger, M. R.; Vinyard, Bryan T.

doi:10.2135/cropsci2005.06-0093

Cited by 9 publications

(6 citation statements)

References 25 publications

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“…The mineral composition of both tuber flesh and peel varied widely between locations, which is consistent with previously published data showing that potatoes of the same cultivar grown at different locations contain varying levels of minerals (True et al 1978;Krištůfek et al 2000;Rivero et al 2003;Sterrett et al 2006). Many of these differences in tissue mineral content are reflected in the levels of soil minerals at each location.…”

Section: Discussionsupporting

confidence: 89%

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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Section: Discussionsupporting

confidence: 89%

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

Miles¹,

Buchman²,

Munyaneza³

2009

Am. J. Pot Res

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“…For example, apples are immersed in a calcium solution to maintain firmness in shipping and prolong shelf life (23). Calcium also is added to soil to reduce the incidences of pathogen attack on potato tubers (24) and to combat heat stress (25,26). All of these measures require the application of calciumcontaining solutions to the soil or fruits.…”

Section: Discussionmentioning

confidence: 99%

Nutritional impact of elevated calcium transport activity in carrots

Morris

Hawthorne

Hotze

et al. 2008

Proc. Natl. Acad. Sci. U.S.A.

116

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Nutrition recommendations worldwide emphasize ingestion of plant-based diets rather than diets that rely primarily on animal products. However, this plant-based diet could limit the intake of essential nutrients such as calcium. Osteoporosis is one of the world's most prevalent nutritional disorders, and inadequate dietary calcium is a known contributor to the pathophysiology of this condition. Previously, we have modified carrots to express increased levels of a plant calcium transporter (sCAX1), and these plants contain Ϸ2-fold-higher calcium content in the edible portions of the carrots. However, it was unproven whether this change would increase the total amount of bioavailable calcium. In randomized trials, we labeled these modified carrots with isotopic calcium and fed them to mice and humans to assess calcium bioavailability. In mice feeding regimes (n ‫؍‬ 120), we measured 45 Ca incorporation into bones and determined that mice required twice the serving size of control carrots to obtain the calcium found in sCAX1 carrots. We used a dual-stable isotope method with 42 Ca-labeled carrots and i.v. 46 Ca to determine the absorption of calcium from these carrots in humans. In a cross-over study of 15 male and 15 female adults, we found that when people were fed sCAX1 and control carrots, total calcium absorption per 100 g of carrots was 41% ؎ 2% higher in sCAX1 carrots. Both the mice and human feeding studies demonstrate increased calcium absorption from sCAX1-expressing carrots compared with controls. These results demonstrate an alternative means of fortifying vegetables with bioavailable calcium.absorption ͉ bioavailability ͉ radioactive isotope ͉ stable isotope

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“…Losses have continued. In 2004, 12% of total potato acreage in Virginia and 1-15% of total potato acreage in North Carolina was lost to IHN (Sterrett et al 2006). Despite a slight reduction in acreage of Atlantic due to IHN susceptibility, its beneficial processing qualities have resulted in its persistence (Henninger et al 2000).…”

Section: Impact Of Ihnmentioning

confidence: 99%

“…A recent study by Sterrett et al (2006) analyzed the effects of Ca and nine other nutrients (P, K, Mg, S, Na, Zn, Mn, Cu, and Fe) on IHN incidence and severity, specific gravity (SG), and yield. The experiment was performed over six locationyears, using Atlantic and 18 interspecific breeding lines (Solanum tuberosum×phureja-stenotomum).…”

Section: Influence Of Other Nutrientsmentioning

confidence: 99%

“…The experiment was performed over six locationyears, using Atlantic and 18 interspecific breeding lines (Solanum tuberosum×phureja-stenotomum). In addition to using the standard general linear model technique to analyze the data, Sterrett et al (2006) employed the more comprehensive, multivariate CART (classification and regression tree) technique to fit nutrient data to levels of IHN incidence for each location-year. Levels of Mn, S, and P each explained more of the observed variation than did Ca levels.…”

Section: Influence Of Other Nutrientsmentioning

confidence: 99%

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Internal Heat Necrosis of Potato—A Review

et al. 2008

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Non-pathogenic necroses of potato tubers have been described in the literature since the early 20th century using different names including internal rust spot, internal browning, physiological internal necrosis, internal brown fleck, chocolate spot, internal brown spot and internal heat necrosis. These reports very likely describe either the same, or a collection of similar disorders, falling under the general umbrella of "internal necrosis", with the expression of symptoms being significantly altered via genotype by environment interactions. A number of widely-grown cultivars (e.g. 'Russet Burbank', 'Atlantic' and 'Yukon Gold') are susceptible to internal necrosis, making it an economically significant problem. In Atlantic, this syndrome has been termed internal heat necrosis (IHN) in the eastern United States by several investigators because heat and drought are believed to be important triggers of this condition. Investigators in the midwestern and western United States term this same or similar disorder internal brown spot (IBS). IHN and IBS are an internal physiological disorder of potato characterized by brownish red necrotic patches of parenchymal tissue that typically, though not always, occur along and/or inside the vascular ring. Several reports indicate that IHN is most commonly associated with the vascular ring tissue near the apical end of the tuber, but IHN may form anywhere in the tuber. In many cases, it is very difficult to distinguish between IHN and IBS, and several overlapping environmental factors are associated with each of these disorders. High day and night temperatures early in the growing season, combined with low rainfall, have been shown to increase the frequency and severity of IHN and IBS in several cultivars. Considerable research has examined the role of calcium in ameliorating IHN and IBS expression. Much of this work suggests an important role for calcium in the development of IHN, but other biotic and abiotic factors undoubtedly affect IHN and IBS expression. The biochemistry and genetics behind internal necroses of potato have historically been the leastresearched facets of this problem. Research has shown that enzymes involved in protecting cells from oxidative damage may be involved, and heritability studies have demonstrated that broad-sense heritability for IHN resistance is high. This review seeks to outline previous work on physiological internal necroses of potato due to high temperatures, summarize our current knowledge of IHN, and point to new areas of investigation to develop IHN resistant potato varieties.Resumen Desde comienzos del siglo 20 se han descrito en la literatura unas necrosis no patogénicas del tubérculo de papa, usando diferentes nombres, como herrumbre interna, oscurecimiento interno, necrosis fisiológica interna, punto oscuro interno, mancha chocolate, mancha marrón interna y necrosis interna por calor. Estos nombres parecen describir ya sea la misma enfermedad o una colección de desórdenes similares que caen dentro de la descripción general "necrosis ...

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4×–2× Potato Clones with Resistance or Susceptibility to Internal Heat Necrosis Differ in Tuber Mineral Status

Cited by 9 publications

References 25 publications

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

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

Nutritional impact of elevated calcium transport activity in carrots

Internal Heat Necrosis of Potato—A Review

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