Sex influences the taxanes content in Taxus baccata

• Autorzy: Iszkulo G. , Kosinski P. , Hajnos M.
• Języki publikacji: EN

Abstrakty

EN

Like other species of the genus Taxus, European yew trees contain taxanes, including paclitaxel (T) and its precursor 10-deacetylbaccatin III (10-DAB). Taxanes are one of the most effective anticancer drugs. This study was undertaken to describe the levels and patterns of taxane variation in the Sudetian region (SW Poland). Paclitaxel (T) and 10-deacetylbaccatin III (10- DAB) concentrations were analysed in five populations. Needles and twigs were analysed from 60 individuals (30 males and 30 females) in each population. In addition, morphometric measurements were taken in the populations to obtain light intensity coefficients (specific leaf area, SLA). High variability in the taxane contents at both intra and interpopulational levels was found. Nevertheless, females had a significantly higher taxane content compared to males. Because taxanes are carbon-based secondary metabolites, females have higher rate of gas exchange of females compared to males. This was probably an adaptation to greater reproductive effort incurred by females. In this regard, female individuals seem to be better for selecting elite cultivars with a higher taxane production. The relationship between light intensity and taxane content was not significant. Shading, important for optimizing crop production, should not reduce the concentration of taxanes.

• Wydawca: -
• Czasopismo: Acta Physiologiae Plantarum
• Rocznik: 2013
• Tom: 35
• Numer: 01
• Opis fizyczny: p.147-152,fig.,ref.

Twórcy

autor

Iszkulo G.

• Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035 Ko´rnik, Poland
• Faculty of Biological Sciences, University of Zielona Go´ra, Prof. Z. Szafrana 1, 65-516 Zielona Go´ra, Poland

autor

Kosinski P.

• Institute of Dendrology, Polish Academy of Sciences, Parkowa 5, 62-035 Ko´rnik, Poland
• Faculty of Biological Sciences, University of Zielona Go´ra, Prof. Z. Szafrana 1, 65-516 Zielona Go´ra, Poland

autor

Hajnos M.

• Department of Pharmacognosy, Medical University of Lublin, Lublin, Poland

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