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. 2012 Jul 26;1(1):6-15.
doi: 10.3390/plants1010006.

Seasonal Variation of Cistus ladanifer L. Diterpenes

Juan Carlos Alías  1 , Teresa Sosa  2 , Cristina Valares  3 , José Carlos Escudero  4 , Natividad Chaves  5
Affiliations

Seasonal Variation of Cistus ladanifer L. Diterpenes

Juan Carlos Alías et al. Plants (Basel). .

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.

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

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Figures

Figure 1
Figure 1
Chemical structures of diterpenes in the exudate of C. ladanifer.
Figure 2
Figure 2
Percentage variation relative to the beginning of the trial in the amount of diterpenes in C. ladanifer plants.
Figure 3
Figure 3
HPLC chromatogram of diterpenes extracts captured at 260 nm. D1: 6-acetoxy-7-oxo-8-labden-15-oic acid; D2: 7-oxo-8-labden-15-oic acid; D3: oxocativic acid.
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