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Revista Facultad de Ciencias Básicas
Article . 2013 . Peer-reviewed
License: CC BY NC ND
Data sources: Crossref
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Revista Facultad de Ciencias Básicas
Article
License: CC BY NC ND
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Comparación de Dos Métodos de Detección de Spongospora subterranea f. sp. subterranea en Raíces de Plantas Hospederas

Authors: Arcila Aristizabal, Ivon Magaly; Zuluaga Amaya, Catalina María; Marín Montoya, Maurio Alejandro; Cotes Torres, José Miguel; González Jaimes, Elena Paola;

Comparación de Dos Métodos de Detección de Spongospora subterranea f. sp. subterranea en Raíces de Plantas Hospederas

Abstract

En esta investigación se compararon dos métodos de detección de <em>Spongospora Aterranea </em>f. sp. <em>subte­rranea </em>en raíces de plantas hospederas, mediante observación microscópica y PCR en tiempo real (qPCR). Para esto, se evaluaron 20 especies vegetales que fueron inoculadas con una concentración de 1,25x105 quistosoros.g-1 de suelo. Fue obtenida una muestra de raíz tres meses después de inoculación para determi­nar la presencia de estructuras morfológicas mediante dos metodologías: microscopía de luz previa tinción con azul de tripano y qPCR usando el sistema Taqman con los cebadores SponF y SponR y la sonda especí­fica SponP. Estos cebadores amplifican un fragmento de 138 pb de la región ITS2 del ADN ribosomal. Para cuantificar la concentración de quistosoros en los tejidos evaluados, se realizó una curva estándar a partir de diluciones seriadas de 1,25x107 to 1,25x103 cystosori.mL-1, y se estimó el valor del ciclo umbral (Ct) para cada muestra desconocida con relación a la curva estándar. Finalmente, se analizaron los datos con el coeficiente de Kappa para determinar el grado de concordancia entre ambos métodos. Se encontró que los métodos utilizados presentaron un grado de acuerdo leve (0.19) en la detección e identificación de <em>S. subterranea </em>f. sp. <em>subterranea </em>en raíces de diversas plantas hospederas.

Country
Colombia
Keywords

Sarna polvosa, cuantificación del inóculo, PCR en tiempo real

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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!
0
Average
Average
Average
Green
gold