Intracellular distribution and origin of pentacyclic triterpenes in Calendula officinalis leaves |
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Authors: | Wirginia Janiszowska Zofia Kasprzyk |
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Affiliation: | Institute of Biochemistry, University of Warsaw, 02-089 Warszawa, al. Zwirki i Wigury 93, Poland |
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Abstract: | In Calendula officinalis leaves the cyclization of squalene to β-amyrin and its further oxidation to oleanolic acid as well as the biosynthesis of all derivatives of oleanolic acid 3-glucoside and some derivatives of oleanolic acid 3-glucuronoside occur in the microsomal fraction. The final metabolites of oleanolic acid 3-glucoside series i.e. pentaglycosides, are translocated from this fraction, one to the cell wall and plasmalemma fraction and the other to the cytosol. The derivatives of oleanolic acid 3-glucoronoside are synthesized partially in other fractions and accumulate in the different membraneous structures of the cell. |
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Keywords: | Compositae triterpenes intracellular distribution labelling dynamics |
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