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Micropropagación del aliso común para la conservación de su germoplasma

Authors: San José, M. Carmen; Janeiro, L.V.; Corredoira, Elena;

Micropropagación del aliso común para la conservación de su germoplasma

Abstract

[ES] Se ha establecido un sistema de propagación in vitro a partir de material adulto del aliso común (Alnus glutinosa). Para la iniciación de los cultivos se recogieron ramas de la copa o renuevos basales de árboles de entre 20-30 años, que se forzaron a desarrollar brotes en condiciones controladas. Estos brotes sirvieron para la iniciación de los cultivos utilizando el medio WPM con 2 mg/l de benciladenina y 0.5 mg/l de ácido indol acético. La etapa de multiplicación se dividió en 3 ciclos de 3 semanas cada uno, transfiriendo los brotes a medio fresco al final de cada uno de los ciclos, utilizándose el mismo medio que en la etapa de establecimiento (WPM) y como reguladores de crecimiento se añadieron al medio: ácido indol acético 0.5 mg/l durante los 3 ciclos, benciladenina 0.2 mg/l (durante el primer ciclo y 0.1 mg/l durante los dos siguientes), y zeatina 0.5 mg/l en el tercer ciclo. Brotes (1.5-2 cm) procedentes de la etapa de multiplicación se enraizaron in vitro, consiguiendo porcentajes de rizogénesis de hasta un 75% tanto en los controles como en los tratamientos con ácido indol butírico 0.1 mg/l, aunque la presencia de auxina incrementó la velocidad de formación de las raíces adventicias.

[EN] Shoot cultures from adult material of common alder (Alnus glutinosa) were established in vitro. Branches from the canopy and stump sprouts were collected from 20-30-year-old trees. Shoots developed from these branches were used to initiate the cultures using Woody Plant Medium supplemented with 2 mg/l benzyadenine and 0.5 mg/l indole acetic acid. The multiplication stage was divided into 3 cycles of 3 weeks each, transferring the shoots to fresh medium at the end of each cycle. Woody Plant Medium was used in this stage supplemented with 0.5 mg/l indole acetic acid, 0.2 mg/l benzyladenine (during the first cycle, 0.1 mg/l for the next two), and 0.5 mg/l zeatin in the 3rd cycle. Shoots (1.5-2 cm) from the multiplication stage were rooted in vitro. Rooting percentages getting up to 75% both in controls and with 0.1 mg/l indole butyric acid, although the presence of auxin increased the speed of root formation.

Peer reviewed

Keywords

Aliso, Conservación, Alnus, Micropropagación

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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
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