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Seasonal Variation of Cistus ladanifer L. Diterpenes

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Author(s): Juan Carlos Alías | Teresa Sosa | Cristina Valares | José Carlos Escudero | Natividad Chaves

Journal: Plants
ISSN 2223-7747

Volume: 1;
Issue: 1;
Start page: 6;
Date: 2012;
Original page

Keywords: Cistus ladanifer L. | secondary metabolism | diterpenes | temperature | water stress

ABSTRACT
The exudate of Cistus ladanifer L. consists mainly of two families of secondary metabolites: flavonoids and diterpenes. The amount of flavonoids present in the leaves has a marked seasonal variation, being maximum in summer and minimum in winter. In the present study, we demonstrate that the amount of diterpenes varies seasonally, but with a different pattern: maximum concentration in winter and minimum in spring-summer. The experiments under controlled conditions have shown that temperature influences diterpene production, and in particular, low temperatures. Given this pattern, the functions that these compounds perform in C. ladanifer are probably different.
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