A β-Amylase in Potato Tubers Is Induced by Storage at Low Temperature

Nielsen, Theodor; Deiting, Uta; Stitt, Mark

doi:10.1104/pp.113.2.503

Cited by 123 publications

(103 citation statements)

References 25 publications

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“…A cDNA array study of filling barley grains identified the down regulation of genes encoding ROSscavenging enzymes in the later stages of grain development, which was consistent with the increased grain H 2 O 2 concentration in this experiment and suggestive of programmed cell death (PCD) [22]. PCD is also recognized as an essential part of stress response and in fact, b-amylase induction is coincident with PCD in most cases, especially abiotic stresses and the desiccation stage of seeds [4][5][6][7][8][9]22,34]. b-Amylase synthesis in these cases might be involved in response to PCD for protection and mobilization of carbohydrate for reutilization.…”

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 58%

“…The physiological role of b-amylase in starch degradation was once considered to be catalytically inactive on starch granules without sufficiently prior digestion by other amylolytic enzymes like a-amylase on the basis of in vitro studies [3]. However, the importance in leaves of b-amylase in transitory starch breakdown and its induction under a number of abiotic stresses have been demonstrated recently [4][5][6][7][8][9].…”

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

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The effect of H2O2 and abscisic acid (ABA) interaction on β-amylase activity under osmotic stress during grain development in barley

Wei

Jin

Chen

et al. 2009

Plant Physiology and Biochemistry

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Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 58%

Section: U N C O R R E C T E D P R O O Fmentioning

confidence: 99%

The effect of H2O2 and abscisic acid (ABA) interaction on β-amylase activity under osmotic stress during grain development in barley

Wei

Jin

Chen

et al. 2009

Plant Physiology and Biochemistry

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“…La mayor conversión de almidón a azúcares solubles se debe a la acción de las giberelinas (GA) cuya síntesis puede ser estimulada por bajas temperaturas, estas sintetizan enzimas hidrolí-ticas, principalmente α-amilasa (Davies, 2004) isoamilasa, b-amilasa, a-glucosidasa y almidón fosforilasa (Cochrane et al, 1991;Cottrell et al, 1993;Claassen et al, 1993;Hill et al, 1996;Nielsen et al, 1997) encargadas de la degradación del almidón. Simultáneamente, los niveles de ABA disminuyen con el incremento en los niveles de frío y se ha encontrado que en bulbos de L. rubellum, almacenados a 4°C, la concentración de este inhibidor del crecimiento disminuye a medida que la vernalización aumenta (Rong-Yan et al, 2006) y también coincide con los estudios en Polianthes tuberosa (Nagar, 1995) y Allium wakegi ( Yamaz ak i et al, 2002).…”

Section: Tabla 2 Análisis De Correlaciones De Pearson Entre Variablesunclassified

La temperatura de vernalización en bulbos reutilizados de lirio (Lilium sp.) afecta la distribución de materia seca y la producción de flor

Auzaque-Rodríguez¹,

Balaguera-López²,

Álvarez-Herrera³

et al. 2012

Rev. Colomb. Cienc. Hortic.

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La temperatura de vernalización en bulbos reutilizados de lirio (Lilium sp.) afecta la distribución de materia seca y la producción de flor RESUMENEl lirio se propaga comercialmente mediante bulbos. Para los programas de siembra en Colombia, los bulbos deben ser importados, pero tienen un alto costo, lo cual reduce la rentabilidad del cultivo. No obstante, mediante la vernalización de los bulbos que quedan después del corte de la flor es posible obtener nuevas cosechas. Por tanto, el objetivo fue evaluar el efecto de diferentes temperaturas de vernalización en bulbos reutilizados de lirio del híbrido asiático Castello sobre la distribución de materia seca y calidad de la flor. Se utilizó un diseño completamente al azar con cuatro tratamientos correspondientes a tres temperaturas de vernalización (-2°C, 3°C y 14ºC) y un testigo comercial (bulbos importados), cada tratamiento tuvo tres repeticiones. Los bulbos fueron almacenados durante 8 semanas a las temperaturas mencionadas y luego fueron sembrados en campo. El testigo comercial generó mayor masa seca de flores, tallo, bulbo y total, y mejor calidad de flor, con la vernalización a -2°C y 3°C se obtuvo una moderada masa seca de flores, tallo y total pero baja en bulbos, se presentó alta floración y buena calidad de flor de lirio, mientras que con 14°C no se presentó una removilización adecuada de las reservas del bulbo, lo que afectó negativamente el crecimiento y la floración. La vernalización de bulbos reutilizados de lirio es una práctica que potencialmente podría reemplazar la importación de bulbos, pero necesita más investigación para aumentar su eficiencia. ABSTRACTLily is propagated commercially with bulbs. For planting programs in Colombia, these bulbs must be imported, but this is an expensive procedure, which reduces profitability. However, through vernalization of bulbs that remain after cutting the flower, it is possible to obtain a new crop cycle. Therefore, the objective was to evaluate the effect of different temperatures in the vernalization of reutilized lily bulbs of the Asian hybrid Castello on the distribution of dry matter and flower quality. A completely randomized design was used with four treatments for three vernalization temperatures (-2°C, 3°C y 14ºC) and a commercial control (imported bulbs), each treatment had three replications. The bulbs were stored for 8 weeks at the above-mentioned temperatures and then planted in the field. The commercial control produced greater dry mass for: flowers, stem, bulb and total; and better quality of flowers. With vernalization at -2°C and 3°C, a moderate dry mass for flowers, stems and bulbs was obtained, but with a low total dry mass; whereas lilies at these low temperatures bloomed abundantly and presented good quality flowers. At 14°C, no adequate remobilization of reserves of the bulbs took place, which negatively affected growth and flowering. Vernalization of reutilized lily bulbs is a practice that potentially could replace bulb imports, but more research needs to increase its efficiency.

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“…Of the various enzymes and genes related to carbohydrate metabolism, the primary function of β-amylase in plants is to break down starch, and this function is induced by low temperature (Kaplan and Guy, 2004;Kossmann and Lloyd, 2000). The expression and activity of β-amylase are regulated by abiotic stressors including osmotic, salt, and cold stresses (Dreier et al, 1995;Nielsen et al, 1997). Most previous studies in peach focused on associations between cold hardiness and the expression of dehydrin proteins and genes (Arora and Wisniewski, 1994;Arora et al, 1992;Bassett et al, 2009;Wisniewski et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Carbohydrate Changes in Peach Shoot Tissues and Their Relationship to Cold Acclimation and Deacclimation

Shin

Kim

et al. 2015

Hortic J

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This study was performed to examine differences in cold hardiness, carbohydrate content, and β-amylase gene expression during cold acclimation and deacclimation in shoots of two peach cultivars (Prunus persica 'Daewol' and 'Kiraranokiwami'). During cold acclimation (from September to November 2011), cold hardiness of the cultivars as determined by electrolyte leakage analysis increased dramatically. Maximum cold hardiness was reached at the end of December 2011 in both cultivars. During deacclimation (late January to April 2012), the cold hardiness of both cultivars decreased gradually. According to the temperatures at which 50% injury occurred (LT 50 ), there was a noticeable difference in cold hardiness between 'Daewol' and 'Kiraranokiwami' during the deacclimation period from the end of January 2012. Cold hardiness was significantly associated with total soluble sugar, sucrose, and β-amylase gene expression in both cultivars. Sorbitol, the most abundant soluble sugar, was not associated with cold hardiness in either cultivar. Glucose and fructose contents in 'Daewol', which was more freezing-tolerant, were approximately double those in 'Kiraranokiwami' from January to February 2012. These results suggest that the conversion of sucrose to glucose and fructose might be correlated with the difference of cold hardiness during deacclimation in these peach cultivars.

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A β-Amylase in Potato Tubers Is Induced by Storage at Low Temperature

Cited by 123 publications

References 25 publications

The effect of H2O2 and abscisic acid (ABA) interaction on β-amylase activity under osmotic stress during grain development in barley

The effect of H2O2 and abscisic acid (ABA) interaction on β-amylase activity under osmotic stress during grain development in barley

La temperatura de vernalización en bulbos reutilizados de lirio (Lilium sp.) afecta la distribución de materia seca y la producción de flor

Carbohydrate Changes in Peach Shoot Tissues and Their Relationship to Cold Acclimation and Deacclimation

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