The biosynthesis of caffeine in the coffee plant |
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| Authors: | Elsbeth Looser T.W. Baumann H. Wanner |
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| Affiliation: | Institut für allgemeine Botanik, Universität Zürich, 8006 Zürich, Switzerland |
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| Abstract: | Leaf disks of Coffea arabica were infiltrated simultaneously with L-methionine-(methyl-14C) and with various possible precursors of caffeine biosynthesis. The results permit the identification of theobromine, 7-methylxanthine and 7-methylxanthosine as precursors of caffeine. 7-methylguanosine seems not to be an intermediate in caffeine formation. |
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| Keywords: | Rubiaceae coffee biosynthesis methylated xanthines caffeine. |
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