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Biochemical and nucleotide variability in the diterpene metabolism for Coffea canephora genotypes from Uganda

Durand N., De Bellis F., Jourdan I., Manez J.C., Aluka P., Vieira L.G.E., Ogwang J., Pot D., Marraccini P., Leroy T., Guyot B.. 2007. In : 21st International Conference on Coffee Science, Montpellier (France), 11th - 15th September 2006. Montpellier : ASIC, p. 922-925. Colloque Scientifique International sur le Café. 21, 2006-09-11/2006-09-15, Montpellier (France).

In the current context of overproduction and low prices, coffee producers give a particular attention to coffee quality, impact on human health being one of its components. In this context, diterpens content constitutes a relevant target trait (Cavin et al., 1998). Coffee diterpens (Cafestol, Kahweol and 16-O-Methylcafestol) are specific of the coffee genus(Finnegan et Djerassi, 1960; Speer and Mischnick, 1989). Little information is available on coffee diterpens metabolism. Today only the enzymes implied in the way of biosynthesis of Ent-Kaurene are known. The ultimate stages between Ent-Kaurene and Cafestol, Kahweol, 16-O-MC are not identified yet.

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