Methyl gallate and its 3-glucoside promote rooting in bean cuttings |
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Authors: | J. Méndez A. Vázquez M.C. Mato |
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Affiliation: | (1) Instituto de Investigaciones Agrobiológicas de Galicia, Consejo Superior de Investigaciones Científicas (CSIC), Apartado 122, 15780 Santiago de Compostela, Spain |
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Abstract: | Methyl gallate stimulated adventitious root formation in cuttings of bean (Phaseolus vulgaris L.). This polyphenol was quickly metabolized into 3-glucosyl methyl gallate to such an extent that 4 h after application no methyl gallate was detected. The isolated glucoside when supplied exogenously at 0.5 mM also enhanced rooting; the effect was 2-fold greater than that of methyl gallate. The glucoside persisted in the cuttings for 72 h after treatment. Because methyl gallate is rapidly transformed to a stable glucoside, we suggest that the root stimulation effect could be ascribed to its glucoside. |
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Keywords: | 3-glucosyl methyl gallate Adventitious roots Methyl gallate Phaseolus vulgaris |
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