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Enhanced Production of Bioactive Isoprenoid Compounds from Cell Suspension Cultures of Artemisia annua L. Using β-Cyclodextrins

Istituto di Scienze delle Produzioni Alimentari—CNR, Via Prov.le Monteroni, 73100 Lecce, Italy
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Int. J. Mol. Sci. 2014, 15(10), 19092-19105; https://doi.org/10.3390/ijms151019092
Received: 31 July 2014 / Revised: 10 October 2014 / Accepted: 13 October 2014 / Published: 21 October 2014
(This article belongs to the Section Biochemistry)
Plant cell cultures as valuable tools for the production of specific metabolites can be greatly improved by the application of elicitors including cyclodextrins (CDs) for enhancing the yields of the desired plant compounds. Here the effects of 2,6-dimethyl-β-cyclodextrins (DIMEB) on the production of carotenoids and quinones from Artemisia annua L. cell suspension cultures were investigated. The addition of 50 mM DIMEB induced an early increase of intracellular carotenoid and quinone contents, which could be observed to a higher extent for lutein (10-fold), Q9 (3-fold) and Q10 (2.5-fold). Real Time PCR analysis revealed that the expression of 1-deoxy-d-xylulose-5-phosphate reductoisomerase (DXR) gene in DIMEB treated cell cultures after three days was 2.5-fold higher than in untreated samples, thus suggesting that the DIMEB induced increase of carotenoids and quinones could be due to the induction of the plastidial isoprenoid biosynthetic route. In addition, the DIMEB treatment induced an enhanced release of carotenoids and quinones into the culture medium of A. annua cell suspension cultures possibly due to the ability of CDs to form inclusion complexes with hydrophobic molecules. View Full-Text
Keywords: plant cell cultures; cyclodextrins; Artemisia annua L.; carotenoids; quinones plant cell cultures; cyclodextrins; Artemisia annua L.; carotenoids; quinones
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Rizzello, F.; De Paolis, A.; Durante, M.; Blando, F.; Mita, G.; Caretto, S. Enhanced Production of Bioactive Isoprenoid Compounds from Cell Suspension Cultures of Artemisia annua L. Using β-Cyclodextrins. Int. J. Mol. Sci. 2014, 15, 19092-19105.

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