Enhancement of galanthamine production through elicitation and NMR-based metabolite profiling in Narcissus pseudonarcissus cv. Carlton in vitro callus cultures

Ferdausi, A, Chang, X and Jones, M (2021) Enhancement of galanthamine production through elicitation and NMR-based metabolite profiling in Narcissus pseudonarcissus cv. Carlton in vitro callus cultures. In Vitro Cellular & Developmental Biology - Plant (12). ISSN 1475-2689

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Abstract

Plants are the unique sources of secondary metabolites (terpenes, phenolic and alkaloid) used as pharmaceuticals, food additives and industrial produces. However, very limited information is known about their biosynthesis in plants. Elicitors are chemicals often used to activate the accumulation of such metabolites in plant in vitro cultures. Since the ancient past, Narcissus is wellknown for its ornamental purposes and medicinal versatility with diverse pharmaceutically important alkaloids including galanthamine, lycorine, haemanthamine and narciclasine. In this research, callus cultures induced from N. pseudonarcissus cv. Carlton bulb explants were subjected to MS media supplemented with growth regulators, yeast extract, methyl jasmonate, chitosan and trans-cinnamic acid for the determination of galanthamine content using GC-MS. Bulbs showed 538 to 1109 μg g−1 FW (fresh weight), and callus cultures subjected to MS medium without elicitors produced 7.88 μg g−1 FW of galanthamine, whereas callus cultures grown on MS with methyl jasmonate, chitosan and 25% sucrose showed approximately 5.6-, 3- and 2-fold increased galanthamine production respectively. NMR (nuclear magnetic resonance) depicted that the concentrations of metabolites related to galanthamine production, tyrosine, tyramine, and 3-chlorotyrosine were higher in bulb tissue than callus. However, these metabolites were present in higher concentrations in elicitor-treated calluses, leading to the higher galanthamine accumulation than the non-treated calluses. Furthermore, the notable metabolites detected in elicitor-treated callus cultures were amino acids, phenols and sugar alcohols. The metabolites in media extracts were mainly related to sucrose and galactose metabolism. The results suggested that the application of elicitors could be a potential approach for enhanced production of valuable metabolites in Narcissus in vitro culture.

Item Type: Article
Keywords: Narcissus pseudonarcissus . Callus . Elicitors . Galanthamine . Metabolites . NMR
Divisions: Agriculture, Food and Environment
Depositing User: Dr Xianmin Chang
Date Deposited: 03 Feb 2021 09:57
Last Modified: 05 Jan 2022 05:20
URI: https://rau.repository.guildhe.ac.uk/id/eprint/16442

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