Abstract

Using the methods reported by De Fossard et al. (11) the influence of various media constituents on the growth and the alkaloid and anthraquinone production in Cinchona ledgeriana callus cultures was studied. Growth and indole alkaloid production (e.g. cinchonamine) was improved by higher auxin levels. The best growth was observed in the light, although many media resulted in no growth at all in the light. Anthraquinone production was highest at lower auxin levels. Quinoline alkaloid levels (e.g. quinidine) were highest in media with low auxin concentrations. Low and medium cytokinin concentration benefited the quinoline alkaloid production.

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