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Efecto de la temperatura y radiación en la producción de glucósidos de esteviol en Stevia rebaudiana en el caribe húmedo colombiano

Temperature and radiation effect on steviol glycosides production in Stevia rebaudiana in the colombian humid caribbean region
Authors: Jarma Orozco, Alfredo; Cardona Ayala, Carlos; Fernández Herrera, Claudio;

Efecto de la temperatura y radiación en la producción de glucósidos de esteviol en Stevia rebaudiana en el caribe húmedo colombiano

Abstract

Estevia es una planta herbácea semi-perenne, nativa de Paraguay, que ha demostrado su versatilidad de adaptación a diversos ambientes en el mundo. Esta planta, se caracteriza por producir glucósidos de esteviol (diterpenos), que pueden ser hasta 300 veces más dulces que la sacarosa. Estos compuestos son sintetizados en la misma ruta de las giberelinas, por lo que factores como la luz y la temperatura, que afectan la síntesis de la hormona, también deberían tener un efecto importante sobre la síntesis de los glucósidos. La investigación, se realizó en el departamento de Montería, Córdoba, durante tres épocas de siembra, entre 2006 y 2007, con el propósito de determinar el efecto de la radiación fotosintéticamente activa (RFA) y las temperaturas máximas y mínimas, sobre la concentración de glucósidos, de los genotipos Morita 1 y Morita 2. Se usó un arreglo factorial de 3 (épocas) x 2 (genotipos), con 12 repeticiones, bajo un diseño experimental completo al azar. De manera general, se observó que las respuestas de los genotipos variaron en función de la oferta ambiental de cada época de siembra; los efectos de la RFA y las temperaturas mostraron una correlación positiva (p≤0,05), con la síntesis de glucósidos para M1, en tanto que para M2, esto solamente fue evidente para la RFA. Aunque se observó un incremento de los glucósidos totales, no sucedió para rebaudiósido A.

Keywords

rebaudiósido A, glycoside, RFA, Glucósidos, Medicine (General), ecophysiology, QH301-705.5, Agriculture (General), Ebaudiósido A, Estevia, ecofisiología, Ecofisiología, S1-972, R5-920, glucósidos, rebaudioside A, Stevia, Biology (General), PAR

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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