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Rapport

by Frischkmecht, P.M; Baumann, T.W; Wanner, H; Association Internationale du Café, París (Francia); 8. Colloque Scientifique International sur le Cafe Abidjan (Costa de Marfil) 28Nov-3Dic 1977.
Publisher: Paris (Francia) 1979Description: p. 139-142.Other Title: Caffeine production in tissue cultures of coffea arabica.Subject(s): COFFEA ARABICA | CULTIVO DE TEJIDOS | CAFEINA | FRUTO | RAMAS ORTOTROPICAS | GRANOS | COFFEA ARABICA | TISSUE CULTURE | CAFFEINE | FRUIT | GRAIN | COFFEA ARABICA | CULTURE DE TISSU | CAFEINE | FRUIT | GRAINSummary: Tissue cultures derived from apical orthotropic stem segments of Coffea arabica have been established and caffeine production as well as growth parameters were analyzed in function of time. The cultures synthesized relatively high amounts of caffeine compared with generally low in vitro formation of other secondary plant substances. The total content was between 1.0 and 1.6 related to dry weight and corresponds to the caffeine concentration in a coffee bean. We found a positive correlation between callus growth and caffeine formation. In addition we studied the influence of various factors on cafeeine production, i.e. light, phytohormones, media volume and caffeine concentration in the media
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++ Dat. num. 8 ref. Sum. (En, Es)

Tissue cultures derived from apical orthotropic stem segments of Coffea arabica have been established and caffeine production as well as growth parameters were analyzed in function of time. The cultures synthesized relatively high amounts of caffeine compared with generally low in vitro formation of other secondary plant substances. The total content was between 1.0 and 1.6 related to dry weight and corresponds to the caffeine concentration in a coffee bean. We found a positive correlation between callus growth and caffeine formation. In addition we studied the influence of various factors on cafeeine production, i.e. light, phytohormones, media volume and caffeine concentration in the media

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