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Open AccessArticle

Cyclodextrin-Elicited Bryophyllum Suspension Cultured Cells: Enhancement of the Production of Bioactive Compounds

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Plant Biology and Soil Science Department, Biology Faculty, University of Vigo, 36310 Vigo, Spain
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Physical Chemistry Department, Chemistry Faculty, University of Vigo, 36310 Vigo, Spain
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REQUIMTE-LAQV, Chemistry and Biochemistry Department, Science Faculty, University of Porto, 4169-007 Porto, Portugal
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Authors to whom correspondence should be addressed.
Int. J. Mol. Sci. 2019, 20(20), 5180; https://doi.org/10.3390/ijms20205180
Received: 8 October 2019 / Revised: 15 October 2019 / Accepted: 16 October 2019 / Published: 18 October 2019
(This article belongs to the Special Issue Host-Guest Complexes)
The rates of production of secondary metabolites obtained by employing conventional plant breeding may be low for practical purposes. Thus, innovative approaches for increasing their rates of production are being developed. Here, we propose the use of elicited plant suspension cultured cells (PSCC) with cyclodextrins (CDs) as an alternative method for the production of bioactive compounds from Bryophyllum species. For this purpose, we analyzed the effects of methyl–β–cyclodextrin and 2–hydroxypropyl–β–cyclodextrin on cell culture growth and on the intra- and extracellular production of phenols and flavonoids. Results clearly show that CDs enhance the biosynthesis of polyphenols by PSCC favoring their accumulation outside the cells. CDs shift the homeostatic equilibrium by complexing extracellular phenolics, causing stress in cells that respond by increasing the production of intracellular phenolics. We also analyzed the radical scavenging activity of the culture medium extracts against 2,2–diphenyl–1–pycrilhydrazyl (DPPH) radical, which increased with respect to the control samples (no added CDs). Our results suggest that both the increase in the production of polyphenols and their radical scavenging activity are a consequence of their inclusion in the CD cavities. Overall, based on our findings, CDs can be employed as hosts for increasing the production of polyphenols from Bryophyllum species. View Full-Text
Keywords: cyclodextrins; Bryophyllum in vitro culture; inclusion complexes; Kalanchoe; antioxidants; gallates cyclodextrins; Bryophyllum in vitro culture; inclusion complexes; Kalanchoe; antioxidants; gallates
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García-Pérez, P.; Losada-Barreiro, S.; Gallego, P.P.; Bravo-Díaz, C. Cyclodextrin-Elicited Bryophyllum Suspension Cultured Cells: Enhancement of the Production of Bioactive Compounds. Int. J. Mol. Sci. 2019, 20, 5180.

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