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Efecto de cuatro fuentes de citoquininas en la multiplicación In Vitro de sacha inchi (Plukenetia volubilis L.) bajo un sistema de biorreactores de inmersión temporal en la región San Martín

Authors: Amasifuen Alvarado, Katerin Paola;

Efecto de cuatro fuentes de citoquininas en la multiplicación In Vitro de sacha inchi (Plukenetia volubilis L.) bajo un sistema de biorreactores de inmersión temporal en la región San Martín

Abstract

El objetivo del presente trabajo fué evaluar la tasa de multiplicación del cultivo de sacha inchi (Plukenetia volubilis L.) mediante un sistema de inmersión temporal, utilizando cuatro fuentes y cuatro concentraciones de citoquininas. Para ello se utilizó segmentos nodales y segmentos apicales de plántulas germinadas in vitro de sacha inchi, en medio de cultivo con M&S suplementado con Kinetina, trans zeatina, Bap y 2ip según tratamiento a concentraciones de 0,045 uM , 0,45 uM , 2,32 uM , 23,32 uM. En un sistema de biorreactores de inmersión temporal. Los cuales fueron distribuidos en un Diseño Completamente al Azar con arreglo factorial 4x2x4.Se evaluó variables que influyen en la propagación in vitro bajo el sistema de inmersión temporal como: porcentaje de contaminación,número y altura de brotes. Se determinó que utilizando segmento nodal como tipo de explante ,BAP como fuente de citoquinina a 0,45 uM nos permite lograr mayor tasa de multiplicación in vitro bajo el sistema de biorreactores de inmersión temporal, pues el T22 logró obtener 5,22 brotes a 42 días de establecimiento. Sin embargo en la longitud de brotes el T16 (Trans zeatina, segmento nodal y 23,23 uM) presentó un mejor comportamiento logrando un longitud 6,13 cm. Finalmente se identificó que los tratamientos con Bap obtuvieron mejores características morfológicas adecuadas para la aclimatación, tratamientos con trans zeatina lograron multiplicarse pero sufrieron hiperhidratación. Los tratamientos con 2 ip llegaron a causar quemado de explantes reduciendo su multiplicación. Asimismo se identificó que al utilizar segmentos nodales y Bap en bajas concentraciones favorecen la formación de raíces.De modo contrario al utilizar segmentos apicales y altas concentraciones de citoquininas inducen a la formación de callos.

The objective of the following work was to evaluate the multiplication rate of the sacha inchi (Plukenetia volubilis L) culture by means of a temporary immersion system, using four sources and concentrations of cytokinins.To this end, nodal segments and apical segment of in vitro germinated seedlings of sacha inchi were used in culture medium with MS supplemented with Kinetin, trans zeatin, Bap and 2ip according to treatment at concentrations of 0,045 uM, 0,45 uM, 2,32 Um, 23,32 uM..In a system of temporary immersion bioreactors. Which were distributed in a Completely Random Design with factorial arrangement 4x2x4.Variables that influence in vitro propagation under the temporary immersion system were evaluated as: percentage of contamination, number of shoots and height of shoots.It was determined that using nodal segment as explant type, BAP as a source of cytokinin at 0.45 uM allows us to achieve higher in vitro multiplication rate under the temporary immersion bioreactor system, as the T22 managed to obtain 5,22 shoots at 42 days of establishment. However, in the length of shoots, T16 (Trans zeatin, nodal segment and 23,23 uM) presented a better behavior, achieving a length of 6,13 cm. Finally, it was possible to evaluate the effect of cytokinin concentrations on the phenotypic characteristics of the explants, where it was identified that the trans-zeatin could multiply. However, they are explant with glassy appearance. The treatments with 2 ip were able to cause burns of explants reducing their multiplication In addition, when using high concentrations BAP induces the formation of calluses of the explant, the apical segments used in this experiment did not manage to form roots, while the nodal segments achieved the formation of roots.

Country
Peru
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Keywords

Citoquininas, Sistema de inmersión temporal, Tasa de multiplicación, Plukenetia volubilis, 610, Biorreactores, https://purl.org/pe-repo/ocde/ford#4.01.06

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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!
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