Biosynthetic Origin of the Isoprene Units in Chromenes of Piper aduncum (Piperaceae)
نویسندگان
چکیده
Estudos metabólicos envolvendo a incorporação de D-glicose-[1-13C] em folhas de Piper aduncum (Piperaceae) mostraram que as vias do mevalonato (MVA) e da triose-piruvato (MEP) estão envolvidas na biossíntese da unidade isoprênica presente no 2,2-dimetil-2H-1-cromeno-6carboxilato de metila (1) e no 2,2-dimetil-8-(3’-metil-2’-butenil)-2H-1-cromeno-6-carboxilato de metila (2). O padrão de incorporação dos carbonos marcados com D-glicose-[1-13C] destes cromenos foram determinados através de espectroscopia de RMN de 13C quantitativo. Os resultados confirmaram que o compartimento biossintético de 1 e 2 pode ser o plastídio e/ou citosol, ou possivelmente um compartimento adicional, como o espaço entre a membrana e o plastídio.
منابع مشابه
Volatile chemical constituents of Piper aduncum L and Piper gibbilimbum C. DC (Piperaceae) from Papua New Guinea.
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