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J Plant Physiol. 2005 Jul;162(7):782-4.

Improving alpha-tocopherol production in plant cell cultures.

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  • 1Istituto di Scienze delle Produzioni Alimentari--Sezione di Lecce, CNR, Via Prov. le Lecce-Monteroni, 73100 Lecce, Italy.


Suspension cell cultures of Helianthus annuus L. were previously established for the production of the most active component of vitamin E, alpha-tocopherol, by optimizing medium composition and culture conditions. In the present work, the possibility of enhancing alpha-tocopherol production by the addition of jasmonic acid to the culture medium was investigated both in sunflower and Arabidopsis cell cultures. A considerable increase (49% and 66%, respectively) of alpha-tocopherol production was obtained in both, after a 72-h treatment with 5 microM jasmonic acid. The modulation of alpha-tocopherol levels in plant cell cultures can provide useful hints for a regulatory impact on tocopherol metabolism.

[PubMed - indexed for MEDLINE]
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