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Natural Product Research
Formerly Natural Product Letters
Volume 24, 2010 - Issue 3
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Original Articles

Chitosan enhances xanthone production in Hypericum perforatum subsp. angustifolium cell cultures

N. Tocci Dipartimento di Biologia Vegetale, Università degli Studi di Roma ‘Sapienza’, Piazzale Aldo Moro 5, Rome, Italy
,
F. Ferrari Dipartimento di Biologia Vegetale, Università degli Studi di Roma ‘Sapienza’, Piazzale Aldo Moro 5, Rome, Italy
,
A.R. Santamaria Dipartimento di Biologia Vegetale, Università degli Studi di Roma ‘Sapienza’, Piazzale Aldo Moro 5, Rome, Italy
,
A. Valletta Dipartimento di Biologia Vegetale, Università degli Studi di Roma ‘Sapienza’, Piazzale Aldo Moro 5, Rome, Italy
,
I. Rovardi Dipartimento di Chimica e Tecnologia delle Sostanze Biologicamente Attive, Università degli Studi di Roma ‘Sapienza’, Rome, Italy
&
G. Pasqua Dipartimento di Biologia Vegetale, Università degli Studi di Roma ‘Sapienza’, Piazzale Aldo Moro 5, Rome, ItalyCorrespondence[email protected]
Pages 286-293 | Received 09 Apr 2009, Accepted 29 Apr 2009, Published online: 05 Feb 2010
 
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Abstract

Hypericum perforatum is an important medicinal plant containing numerous biologically active compounds. The effect of chitosan elicitation on xanthone biosynthesis in calli and in cell suspension cultures of H. perforatum subsp. angustifolium was evaluated. Elicited cell cultures showed an increase in xanthone production and a simultaneous decrease in flavonoid production. Chitosan also induced the production of 1,7-dihydroxyxanthone (euxanthone) and cadensin G, which were not detected in either the calli nor the non-elicited cell cultures. 1,7-Dihydroxyxanthone was in part (21%) released in the culture medium.

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