Abstract
Mitragynine is a pharmacologically-active terpenoid indole alkaloid found in Mitragyna speciosa leaves. Treatment with methyl jasmonate (10 μM) for 24 h and yeast extract (0.1 mg/ml) for 12 h were the optimum conditions of elicitation of mitragynine accumulation in a M. speciosa shoot culture. The former elicitor gave 0.11 mg mitragynine/g dry wt. Tryptophan decarboxylase and strictosidine synthase mRNA levels were enhanced in accordance with mitragynine accumulation.
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Acknowledgments
Authors thank the Prince of Songkla University (PSU) (Grant No. PHA520146S), the Graduate School of PSU, the Thailand Research Fund and The Commission of Higher Education (TRF-CHE; Grant No. RMU4980023) for financial supports. We would like to thank Dr. Brian Hodgson for assistance with the English.
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Wungsintaweekul, J., Choo-malee, J., Charoonratana, T. et al. Methyl jasmonate and yeast extract stimulate mitragynine production in Mitragyna speciosa (Roxb.) Korth. shoot culture. Biotechnol Lett 34, 1945–1950 (2012). https://doi.org/10.1007/s10529-012-0968-6
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DOI: https://doi.org/10.1007/s10529-012-0968-6