Effect of light quality and culture medium on somatic embryogenesis of Agave tequilana Weber var. Azul
2011
Rodríguez-Sahagún, Araceli | Acevedo-Hernández, Gustavo | Rodríguez-Domínguez, José M. | Rodriguez Garay, Benjamin | Cervantes-Martínez, Jesús | Castellanos-Hernández, Osvaldo A.
Somatic embryogenesis in Agave tequilana Weber var. Azul was affected by the interaction between the light regimes applied during the induction phase and the expression phase. When embryogenic calli was exposed to white or red light during the expression phase, an average of two germinated embryos per explant was obtained regardless of the light treatment used for callus induction. Conversely, the highest number of germinated embryos, an average of 18 per explant, was obtained when applying either white or red light during the induction phase and then wide-spectrum light during the expression phase. Culture medium had also a great influence in this process, with embryo germination being reduced by up to 70%, depending on the light treatment, when using Schenk and Hildebrandt (SH) medium instead of Murashige and Skoog (MS) medium.
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