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      Efectos del ácido giberélico, bencilaminopurina y fluridona en la germinación in vitro de Ugni molinae Turcz. (Myrtaceae) Translated title: Effects of gibberellic acid, benzylaminopurine and fluridone on the in vitro germination of Ugni molinae Turcz. (Myrtaceae)

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          Abstract

          En la presente investigación se estudiaron los efectos de bencilaminopurina (BAP), ácido giberélico (GA ) y fluridona (FLU) sobre la germinación in vitro de murtilla (Ugni molinae), una especie nativa de Chile. La semilla de murtilla presenta una fuerte dormancia, razón por la cual se realizaron dos ensayos a fin de mejorar la germinación. Los resultados indican que FLU, un inhibidor de la síntesis de ABA, fue el más eficaz en romper la dormancia. La combinación de 10 μM de FLU con BAP o GA mejoraron la germinación, siendo FLU + GA la más óptima, ésta fue capaz de elevar la germinación de 34% en el testigo a 96% a los 60 días. Lo anterior sugiere que en los mecanismos de dormancia de la semilla de U. molinae está involucrada la presencia de ABA.

          Translated abstract

          In the present investigation, the effects of benzylaminopurine (BAP), gibberellic acid (GA ) and fluridone (FLU) on in-vitro germination of murtilla (Ugni molinae), a native species to Chile were studied. Murtilla seed has a strong dormancy, the reason why two trials were performed to improve the germination. The results show that FLU, an inhibitor of the synthesis of ABA, was the most effective in breaking dormancy. The combination of 10 μM FLU with BAP or GA3 improved germination, FLU + GA was the optimum combination. It raised the germination from 34% in the control seed to 96% up to 60 days after treatment. The results also suggest that in the mechanisms of seed dormancy of U. molinae the presence of ABA is involved.

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          Role of Abscisic Acid in Seed Dormancy

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            Seed ecology, biogeography, and evolution of dormancy and germination

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              Control of seed dormancy in Nicotiana plumbaginifolia: post-imbibition abscisic acid synthesis imposes dormancy maintenance

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                gbot
                Gayana. Botánica
                Gayana Bot.
                Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción
                0717-6643
                June 2016
                : 73
                : 1
                : 77-84
                Affiliations
                [1 ] Universidad Católica de Temuco Chile
                Article
                S0717-66432016000100010
                4084bed4-db58-4f2c-9b48-bf4e234645e2

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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                SciELO Chile

                Self URI (journal page): http://www.scielo.cl/scielo.php?script=sci_serial&pid=0717-6643&lng=en
                Categories
                PLANT SCIENCES

                Plant science & Botany
                Plant science & Botany

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